014-MS for General Scaffolding.pdf

Pearl GTL Project

LINDE ENGINEERING

Shell Project No: HP-3000-QAT Contractor Project No : 5887 Project Document Number: T- 4.234.080 Project Rev.: A Page 2 of 32

Purchase Order Number:

2MH127

Tag/Item Number(s): N/A

Unit(s): ASU

PCWBS: Z

Doc. Title :

GAM-MTS-CIV-GTL-014 Method Statement for Scaffolding (General)

Date/Rev. No : 05 APRIL 2008 (Rev. D)

T-4.234.080 Rev. A Page 3 of 32

QQQ AAA TTT AAA RRR

QATAR SHELL GTL PROJECT (PEARL) C2 AIR SEPARATION UNITS CONSTRUCTION

D A 05.04.2008 Company Comments Implemented RG BU ZG CCI

C O 27.09.2007 Issued for Company Comments IO MC ZG ICC

B 20.09.2007 Issued for Review IO MC ZG IFR

A 15.09.2007 Issued for Internal Review IO MC ZG IIR

GAMA Rev.

Project Rev Date Description

Prepared By

Checked By

Approved By Status

No. No. ORIGINATOR

LINDEGINEERING AG

Document Title:

METHOD STATEMENT FOR SCAFFOLDING (GENERAL)

Document No. GAM MTS CIV GTL 014 D

LOC470 Contractor

Gama Qatar Co. W. L. L. Org.

Code Doc. Type

Disc. Code

Geogr. Area

Seq. No

Rev. No Vendor Code

Project Document Number: T-4.234.080 Rev No: A

Doc. Title :



T-4.234.080 Rev. A Page 4 of 32

QQQ AAA TTT AAA RRR

TABLE OF CONTENTS 1 INTRODUCTION ............................................................................................................................................................5

1.1 GENERAL ...................................................................................................................................................................5 1.2 SCOPE.........................................................................................................................................................................5

2 REFERENCE....................................................................................................................................................................5

3 DEFINITIONS ..................................................................................................................................................................5

4 HSSE...................................................................................................................................................................................6

5 METHOD OF EXECUTION ..........................................................................................................................................7 5.1 PRE-COMMENCEMENT WORKS..................................................................................................................................7 5.2 SCAFFOLDING OPERATIONS .............................................................................................................................8

5.2.1 SCAFFOLDING ERECTION...............................................................................................................................8 5.2.2 LADDER ACCESS ...............................................................................................................................................9

5.3 SAFETY AWARENESS ........................................................................................................................................10 5.4 WORK AT HEIGHT AND FALL PROTECTION .............................................................................................................10

1. PROCEDURE .................................................................................................................................................................11 5.5 GENERAL INSTRUCTIONS.........................................................................................................................................11

5.5.1 Materials ............................................................................................................................................................11 5.6 STORAGE..................................................................................................................................................................12

5.6.1 Storage of Materials...........................................................................................................................................12 5.7 GENERAL RULES FOR SCAFFOLDING .......................................................................................................................12

5.7.1 Foundations........................................................................................................................................................12 5.7.2 Standards (Tube & Coupler Scaffolds)..............................................................................................................13 5.7.3 Ledgers (Tube & Coupler Scaffolds).................................................................................................................14 5.7.4 Transoms ............................................................................................................................................................14 5.7.5 Braces .................................................................................................................................................................15 5.7.6 Working Platform...............................................................................................................................................15 5.7.7 Ladder Access Platforms ...................................................................................................................................16 5.7.8 Ladders ...............................................................................................................................................................16 5.7.9 Protective Barricading and Signage .................................................................................................................16 5.7.10 Check Fittings................................................................................................................................................16 5.7.11 Scaffold Loadings..........................................................................................................................................17 5.7.12 Scafftag ..........................................................................................................................................................17 5.7.13 Traffic Movements.........................................................................................................................................17

5.8 SCAFFOLD TYPES.....................................................................................................................................................17 5.8.1 Common access scaffolds shall be taken to mean:............................................................................................17 5.8.2 System Scaffold...................................................................................................................................................18 5.8.3 Independent Tied Scaffolds ................................................................................................................................18 5.8.4 System Scaffold...................................................................................................................................................18 5.8.5 Free Standing Towers/Mobile Scaffolds............................................................................................................19 5.8.6 Slung Scaffolds (Single Lift Only)......................................................................................................................20 5.8.7 Erection of Scaffolding.......................................................................................................................................20

5.9 INSPECTION ..............................................................................................................................................................22 5.10 SCAFFOLD USERS.....................................................................................................................................................22

6 ATTACHMENTS ...........................................................................................................................................................23 6.1 AUTHORIZATION FLOW ...................................................................................................................................23 6.2 ABBREVIATIONS ................................................................................................................................................24 6.3 TYPE OF SCAFFOLDING ....................................................................................................................................26 6.4 AUTHORITY LEVEL............................................................................................................................................28 6.5 JOB SAFETY ANALYSIS.....................................................................................................................................28

Doc. Title :



T-4.234.080 Rev. A Page 5 of 32

QQQ AAA TTT AAA RRR

1 INTRODUCTION

1.1 GENERAL This document describes the methods proposed to be used for scaffolding facilities that shall be carried out at Ras Laffan Industrial City in Qatar for QSGTL Pearl Project ASU Construction Works.

1.2 SCOPE Scaffolding facilities shall take place on the dedicated place(s) as per approved layout area. The supply, erection, maintenance and dismantling will be carried out by Gama.

2 REFERENCE

BS 5973 Code and practice for access and working scaffolding and special Scaffolding structures in steel

BS 1139 Specification for Tube and Fittings. BS 2482 Specification for Boards BS 5240 Safety Helmets. BS EN 361 Safety Harnesses BS 2092 Safety Spectacles BS 1870 Safety Boots BS 6344 Ear Defenders BS EN 12811-1, 2003 Access and Working Scaffolds Performance requirements and General

design.

GTL-GM-001-A-5610 Scaffolding Procedure T-4.129.868 Work at Height - Scaffolding Other specifications and procedures of Contractor, Company and RLIC.

3 DEFINITIONS

Company : QSGTL and or its PMC (JK)

Contractor : Linde Engineering AG

Subcontractor or Gama: GAMA QATAR

Contract : QSGTL Pearl Project ASU Construction Works

ITP : Inspection and Test Plan

QCR : Quality Control Record

QCP : Quality Control Procedure

QA/QC : Quality Assurance / Quality Control

TPI : Third Party Inspection

Doc. Title :



T-4.234.080 Rev. A Page 6 of 32

QQQ AAA TTT AAA RRRBS : British Standard

4 HSSE

All works shall be in compliance with the State of Qatar laws and regulations, Ras Laffan Industrial City and international standards/codes, and Company and Contractor requirements and instructions.

All personnel will go through Gama, Linde and Company Safety Induction courses as well as other trainings as identified by their supervisor. Please see Document Number GTL-GM-001-A-5635 for details.

A Job Safety Analysis (JSA) specific for this work including a Risk Assessment, is prepared as per Gama procedure GTL-GM-001-A-5626 and is attached herein. Such JSA addresses the hazards associated with each task within the scope of this Method Statement and introduces the controls that will be implemented to reduce the associated risks to acceptable levels. The JSA will be used by the Site Supervisor as the basis of his TSTI / TSTO and his Toolbox Talks.

All personnel will have PPE required for their specific tasks in addition to the minimum PPE (coveralls, safety goggles, safety shoes, high-visibility vests, gloves) at site at all times as required.

Doc. Title :



T-4.234.080 Rev. A Page 7 of 32

QQQ AAA TTT AAA RRR

5 METHOD OF EXECUTION

5.1 PRE-COMMENCEMENT WORKS

I. Work Permit

Before the start of each day's operation, all necessary clearances and permits shall be obtained. See also Attachment 1 Authorization Flow.

II. Equipment and Personnel

All equipment shall be inspected and approved by the Contractor, and all personnel shall be inducted and trained before mobilization.

Scaffolding shall be carried out by trained and authorized persons. In addition all employees shall be regularly/daily trained and made aware of the risk / hazards involved and the safety precautions to be taken via toolbox talk which shall be recorded using the form(s).

All scaffolds shall be erected, modified or dismantled under the supervision of a competent and experienced person. Scaffolders shall have necessary certifications and practical experiences.

All scaffolding materials shall conform to British Standard BS 1139/BS EN 74 or equivalent unless specified otherwise.

Personal Protective Equipment shall be provided to all employees for their normal duties and where specified in the Permit to Work System. All plant, equipment and materials employed shall comply both with the requirements of the contract and with any British Standard Specification. Where needed, Third Party Certificates shall be obtained.

Gama will arrange proper storage of materials and equipment on site in accordance with the Gama Quality Procedures.

In the normal course of events and unless otherwise stated the following materials shall be employed, in accordance with the stated British Standard(s):

Doc. Title :



T-4.234.080 Rev. A Page 8 of 32

QQQ AAA TTT AAA RRR

Scaffolding Equipment: Modular System Scaffold

Tube and Fittings to BS1139

Boards to BS2482.

Ladders to BS Standard

Safety Equipment: Safety Helmets to BS5240

Standard Scaffold tool belt with frogs.

Safety Harnesses to BS EN 361

Safety Spectacles to BS2092

Safety Boots to BS1870

Coveralls & Gloves to relevant standards

Ear Defenders to BS6344

Scaffold spanner (spanners shall be tied with safety line to the belt to avoid any fall)

Scaffold Sprit level

Additional equipment shall be obtained when necessary.

5.2 SCAFFOLDING OPERATIONS

5.2.1 SCAFFOLDING ERECTION - All scaffolding shall be erected in accordance with the British Standards (BS EN 12811-1, 2003) regarding minimum widths, provision of hand rails, mid rails and toe-boards.

- All scaffolds shall be built to suit the loading duty required. See also Attachment 6.4 - Authority Level.

- The Scafftag system shall be used to indicate the inspection status of the scaffold and a Scafftag holder shall be utilized at each entrance to the scaffold. A scaffolding checklist & central register of all scaffolds shall be maintained and shall be kept up to date.

- All scaffolds shall be erected on a good, solid sound base; in addition earthworks shall be compacted before any erection activity. To ensure - the foundations or structure from which a scaffold is built are adequate, following procedures shall be followed,

i. Metal base plates and timber sole boards shall be placed under every standard, on soft ground or where there is any likelihood of surface penetration, metal base plates and suitable timber sleepers shall be used.

ii. If the scaffold is to be erected on a roof or over a basement or upper floor, the foundation suitability or propping/shoring requirement shall be checked.

-

Doc. Title :



T-4.234.080 Rev. A Page 9 of 32

QQQ AAA TTT AAA RRR

All working platforms and access ways shall be close boarded, using scaffold grade boards compliant to the relevant British Standard. All boards shall be visually inspected before use -to ensure fitness for duty.

- The scaffold shall be erected with standard centres and lift heights not in excess of those specified in BS 5973.

- The scaffold shall be adequately braced in both directions and all braces shall be fixed as near to the node points as possible with load bearing couplers.

- Boards must overhang the supporting transoms by a minimum of 50 mm and a maximum of 150 mm. All boards shall be secured, with non flammable material, to prevent movement.

- When erecting or dismantling scaffold the area underneath or around the scaffold structure shall be cordoned off and patrolled to prevent unauthorised entry. Also suitable barriers or signs shall be erected at the area.

- Tubes or boards being used in the construction of Scaffolding shall be stored flat in a neat and tidy manner.

- Transoms must be positioned at the correct centres to adequately support the boards. When intermediate transoms are removed from the lower lifts of progressive scaffolds, a minimum of one tube must be left within 305mm (1) of each pair of standards and fixed on load bearing couplers.

- Guardrails and toe boards shall be fitted to all sides of platforms in compliance with requirements.

- Before dismantling is commenced, a visual check shall be done, ensuring that all ties are in position and that the scaffold shall be safe.

- All spare materials shall be safely and securely stowed or they shall be returned to the rack or compound.

- An authorized person fully and adequately shall inspect the scaffold, before being handed over.

See also Attachments.

5.2.2 LADDER ACCESS

- Ladders shall be adequately supported and secured to prevent movement.

- All ladders must be securely footed where possible and secured, only by use of the stiles, to prevent its movement.

- A Ladder shall project at least 1m above its landing place with a rung level with or slightly above the landing platform.

- There shall be a minimum of 200 mm vertical and horizontal clearance behind each rung of the ladder to permit a safe and secure foot hold. Where a tie is used to secure a ladder to the

Scaffold structure, the tie must not impede a safe footing on the ladder rungs.

- When ascending or descending a ladder 3-point contact must be maintained at all times, tools or equipment shall be raised or lowered using a separate line or be carried in a pouch or back-pack.

- Access points shall be provided with a self closing gate arrangement.

Doc. Title :



T-4.234.080 Rev. A Page 10 of 32

QQQ AAA TTT AAA RRR

5.3 SAFETY AWARENESS

- Only qualified and competent workmen shall erect, modify and/or dismantle scaffolding.

- All workers shall be instructed in the correct use of the harnesses before commencing work at height.

- All scaffolders shall wear a suitable safety harness fitted with twin lanyards with shock absorber, each lanyard to be fitted with a dual action self locking safety hook to allow for 100% tie-off at all times.

- Condition of all equipment shall be checked thoroughly before any use. If any defects are found or suspected, it shall be reported to the supervisor.

- Scaffolders shall work on a minimum of three boards when erecting scaffolds.

- Unless completion of the scaffold and satisfactory inspection by a competent inspector the Green Scafftag insert shall not be placed in the holder. During modification or dismantling of the scaffold, the insert shall be removed and the Red "DO NOT USE" symbol shall be displayed. All incomplete structures shall be fitted with DO NOT USE or INCOMPLETE signs as soon as possible.

- All materials shall be safely lowered or raised from one level to the next either by hand to hand or by securely attaching to a rope and hauling. Throwing shall not be permitted.

- Fittings should be stripped from tubes during dismantling to minimise further hazards during handling, a single fitting may be left on each tube to facilitate safe handling of the material from or to an elevation. Fittings should be securely bagged before being towered or raised to an elevation.

- A ladder shall be used for access to working level. Ladders shall be inspected before each use; and colour coded per month defective ladders shall not be used.

- Ladders shall be properly lashed throughout the vertical height of the scaffolding and set on a firm and level base. They shall be securely tied or footed and must not slip outwards or sideward.

See JSA for topics not covered in this section.

5.4 WORK AT HEIGHT AND FALL PROTECTION When activities must be performed on height, without the possibility to use scaffolding, safe working platform or ladder, fall protection must be used. Fall protection must full fill the following requirements:

Harnesses must have torso and shoulder braces and monthly colour coded. Before use harness and live line must be visual inspected Harnesses must be clean and free from damage Harnesses that have been used during a fall, must be inspected by an authorized

inspector

Depending on the activities to be performed, different types of fall protection may be used. The JSA shall include the type of fall protection to be used.

Doc. Title :



T-4.234.080 Rev. A Page 11 of 32

QQQ AAA TTT AAA RRR

1. PROCEDURE

5.5 GENERAL INSTRUCTIONS

Many operations may present personal hazards to workers. Scaffolding and access equipment provides a working platform which enables a variety of work tasks to be carried out at height. Structures and platforms shall be built, inspected and maintained in such a way as to allow the work to be completed safely, they should be properly constructed, and provide adequate space for workers and equipment

5.5.1 Materials

1. Tubes, units, frames, etc. shall be straight, free of cracks, splits, excessive corrosion or other defects. The ends shall be cut square. Any tube, unit or frame requiring a high degree of maintenance such as wire brushing or scraping shall be replaced.

2. No tube, unit or frame shall be painted. The only acceptable coating shall be galvanizing and zinc primer.

3. No black steel tube shall be used.

4. Non-conforming scaffolding materials shall be segregated and quarantined.

5. Scaffolding Boards

Boards of similar thickness shall be used to deck out individual scaffolds;

Scaffolding boards are not acceptable if they have a knot larger than 50 mm diameter;

Edge knots shall not exceed 50% of the thickness of the board; Warped boards shall not be used; Scaffold boards with splits are not acceptable; There shall be no cut outs (checks), burns, oil stains or projecting

nails;

Boards shall not be painted or treated in any other way which may conceal defects. They may be fireproofed using an approved flame retardant material;

Boards which are broken or excessively worn are not acceptable; Boards shall be square cut and bound with a hoop iron.(unless micro

laminated boards)

Doc. Title :



T-4.234.080 Rev. A Page 12 of 32

QQQ AAA TTT AAA RRR6. Couplers

Any coupler found to be broken or damaged or found to have rusty or

damaged threads shall be discarded. Couplers shall be sorted by type. They shall be kept clean and lightly

oiled to prevent rust. All scaffolding material shall be of sound construction and adequate

strength and shall be manufactured, constructed and maintained to international standards suitable for the Project.

5.6 STORAGE

5.6.1 Storage of Materials All scaffolding material shall be properly and neatly stored in properly constructed scaffold racks and:

Tubes shall be sorted and stored by length; Couplers shall be sorted and stored by type; Boards shall be stored no more than 20 high. Where materials are being stored at the site of erection for immediate use,

they shall be stored in a neat manner which does not present a tripping hazard or block access routes. Scaffold materials shall be stored only in areas approved by site management.

5.7 GENERAL RULES FOR SCAFFOLDING

5.7.1 Foundations

The foundations shall as far as possible be level and adequate to carry the load imposed;

Base plates shall be placed under every standard irrespective of the foundation surface;

Sole plates shall be placed under every base plate where the foundation is other than concrete or metal plate decking. This rule shall apply to open deck grating;

Sole plates, where required, shall be placed underneath the base plates on two adjacent standards, normally at right angles to the face of the scaffold. The sole plate shall extend 600mm either side of the two adjacent standards which it supports;

Under no circumstances shall scaffolds be undermined by carrying out any excavation within 1 metre of concrete foundations and within 2 metres on soft ground.

Doc. Title :



T-4.234.080 Rev. A Page 13 of 32

QQQ AAA TTT AAA RRR

5.7.2 Standards (Tube & Coupler Scaffolds)

Standards shall be plumbed vertical; The spacing between standards is determined by the intended use of

the scaffold. Under no circumstances shall the bay length exceed those distances appended in Table 1;

Joints in standards can be made with sleeve couplers or spigots (joint pins). Joints must be staggered, i.e. they must not occur at the same level in adjacent standards.

TABLE 1

Duty

Use of platform Distributed loads on

platforms KN/m2

Commonly used widths using

225mm boards

Max. bay

length m

Inspection and very light duty

Inspection, painting, stone cleaning, light cleaning, cleaning and access.

0.75 3 boards 2.5

Light duty Plastering, painting, stone cleaning, glazing and pointing

1.50 4 boards 2.4

General purpose

General building work including brickwork, window and mullion fixing, rendering, plastering

2.00 5 boards or 4 boards + 1 inside

2.1

Heavy duty Block work, brickwork, heavy cladding

2.50 5 boards or 5 boards + 1 inside or 4 boards + 1

inside

1.8

Masonry or special duty

Masonry work, concrete block work, and very heavy cladding

3.00 6 to 8 boards 1.8

Doc. Title :



T-4.234.080 Rev. A Page 14 of 32

QQQ AAA TTT AAA RRR

5.7.3 Ledgers (Tube & Coupler Scaffolds)

Ledgers must be plumbed level and fixed to the inside of standards using right angle, load bearing couplers. The ledger must not extend more than 50 mm past the load bearing coupler;

The vertical distance (lift height) between ledgers must not exceed 2 metres;

Joints in ledgers shall be made with sleeve couplers; spigots (joint pins) are not acceptable. All joints must be staggered.

IMPORTANT NOTE

Right angle couplers (doubles or 90s) are the only fitting suitable as load bearing. Swivel couplers are not acceptable in a load bearing capacity. (Unless for additional slippage check fitting)

5.7.4 Transoms

Transoms should, whenever possible, be secured to standards using right angle couplers. They may however, be laid across ledgers and secured with putlog clips provided that they are not more than 300 mm from each pair of standards. A transom must not extend more than 50 mm past the right angle coupler/ putlog clip;

Tie-ins must be fixed at every second lift and every second standard; Where a scaffold has been sheeted out with tarpaulins, consideration

shall be given to additional wind loading and the insertion of additional ties;

All ties shall be positive two way ties, i.e. they shall prevent movement of the scaffold either into or away from the building;

All tie-ins must be secured as near to the node point as is possible (where standards and ledgers intersect). Only load bearing couplers shall be acceptable;

The anchorage point to which a tie is secured must be of sufficient strength to withstand the load imposed upon it. Under no circumstances shall guard-rails be used as an anchorage point for ties;

As a general rule, ties must always be inserted. Where this is not possible, the following alternative actions may be taken;

On small scaffolds not extending above three lifts, the stability of the scaffold can be achieved by rakers. The raker shall be secured with right angle couplers to the ledger at the second lift. The load in the raker shall be distributed through a base plate or if required a sole board. The foot of the raker shall be tied back to the main scaffold. Rakers shall be inserted at the same standard spacing as ties;

No Raker shall extend more than 3 metres without being tied back at its mid point.

Doc. Title :



T-4.234.080 Rev. A Page 15 of 32

QQQ AAA TTT AAA RRR

5.7.5 Braces

All scaffolds shall be braced in both directions. Braces, whether facade or ledger to ledger, shall extend to the full height of the structure;

Facade braces shall be repeated at a maximum distance of every 10 metres;

Ledger to ledger bracing shall be repeated at every alternate set of standards;

Joints in facade braces shall be made with sleeve couplers, spigots are not acceptable;

Where braces are fixed to transoms, the transom itself must be fixed with right angle couplers.

5.7.6 Working Platform

Working platforms shall normally be five boards wide but may be reduced to three boards or 650 mm where the scaffold has been erected for inspection or access purposes only;

All working platforms shall be close boarded with boards butted together end to end. Boards shall either be cut to fit around standards, pipe penetrations etc., or have the gaps filled in with the use of suitable fixed wooden boarding i.e. ply wood;

Each individual board shall be securely lashed; Guard-rails shall be fixed to the inside of the standards on all working

platforms to a height of between 1.1 metres (minimum) and 1.5 metres (maximum). The space between the top of the toe board and the underside of the guard-rail shall not exceed 470 mm;

An intermediate guard-rail shall be fixed to the inside of standards in every instance;

Toe boards including stop end boards shall be fitted to all working platforms. The minimum height shall be 150 mm;

If materials are to be stacked above the height of the toe board, a suitable barrier (brick guards) shall be erected;

Ladder access openings shall not be more than 500 mm wide (2 boards) and shall be as short as possible in the other direction;

The maximum span of any board forming the working platform shall be 1.2 metres;

The minimum overhang of any board shall not be less than 50 mm and the maximum overhang shall not exceed 150 mm;

No more than 2 boards width shall be supported on needle transoms unless the transoms are fixed with right angle coupler and picked up.

Doc. Title :



T-4.234.080 Rev. A Page 16 of 32

QQQ AAA TTT AAA RRR

5.7.7 Ladder Access Platforms

The vertical height between ladder access platforms, shall not exceed 4.5 or 3.6 metres; (awaiting clarification from KBR 5887-ON-PR-HM-032 Fall prevention and Protection

Ladder access platforms shall be close boarded and shall have guard-rails and toe boards secured.

5.7.8 Ladders

Ladders shall project beyond working platforms or ladder access platforms by a minimum distance of 1.05 metres (five rungs);

Ladders shall be based on a sound footing. They shall be lashed or secured by a proprietary clamp at both the foot and near the top;

The angle at which the ladder is set shall (with the exception of scaffold towers) be 75 or 300 mm out for every 1.2 metres of vertical length;

Long ladders shall be supported and lashed at their mid point to remove any bounce;

Ladders shall be constructed of aluminium or wood. Only properly constructed and manufactured ladders shall be used. Home made ladders are strictly forbidden;

All ladders shall be of good repair and sound construction. They shall be checked for damage, faults and wear & tear, by the Approved Scaffolding Supervisor, before use;

Metal tie rods shall be used; Ladders may be on the outside of a scaffold for the first two lifts,

above ground level. In every other instance, the ladder run shall be internal to the scaffold.

5.7.9 Protective Barricading and Signage

Where it is likely that material may fall from a building or a scaffold and where people are working in, or passing in close proximity to the structure, exclusion abreaction and warning signs shall be provided

5.7.10 Check Fittings

Without exception, check fittings shall be used whenever a scaffold tube is punched up, picked up, rakered or hanging. Must be load bearing fittings.

Doc. Title :



T-4.234.080 Rev. A Page 17 of 32

QQQ AAA TTT AAA RRR

5.7.11 Scaffold Loadings

It is the responsibility of the Approved Scaffold Supervisor to ensure that the scaffold construction and strength is suitable for the purpose to which it shall be used;

Design calculations shall be submitted to the Engineering Department for any scaffolding other than a common access scaffold. The calculation shall show both dead and live loadings.

5.7.12 Scafftag

Scafftag is a system of inspection whereby weather proofed plasticized tag is placed at all access points of a scaffold. Information on the tag shall include the date built, safe working load, initial inspectors name and signature and company. The tag (generally green) indicates that the scaffold is Safe to Use;

Within a period not exceeding 7 days, the scaffold shall be re-inspected by a competent person (scaffolding supervisor) and a signature and date placed upon the tag. Where a scaffold does not meet safety standards the tag shall be removed and a prohibition notice placed at the access to inform personnel not to use;

A separate record of all scaffold inspections including scaffolding checklist shall be kept in an approved scaffold register.

5.7.13 Traffic Movements

Where a scaffold is erected in an area where it is likely to be struck by a vehicle, the base of the scaffold shall be properly barricaded off using hard barriers. The barrier shall be illuminated with flashing warning lights during the hours of darkness.

5.8 SCAFFOLD TYPES

5.8.1 Common access scaffolds shall be taken to mean:

Independent tied Birdcage Freestanding tower (fixed or mobile) Hanging scaffold (single lift only)

Doc. Title :



T-4.234.080 Rev. A Page 18 of 32

QQQ AAA TTT AAA RRR

5.8.2 System Scaffold

Where a system scaffold is being erected it shall be constructed in strict compliance with manufacturers instructions;

Different manufacturers systems shall not be intermixed, it is however permissible to use standard tube and coupler with any one system;

A copy of the manufacturers instructions shall be given to the SHE Department before any system scaffold is erected;

Personnel who erect system scaffolds shall be trained and competent to do so.

5.8.3 Independent Tied Scaffolds

This consists of two rows of standards running parallel to a building joined together with ledgers and transoms and adequately braced in two directions. In all respects they shall comply with the general requirements as specified in Section 4 of this procedure;

Independent tied scaffolds shall not be erected to a height of more than 38 metres without design calculations being submitted to the Engineering Department, by a competent scaffold engineer.

5.8.4 System Scaffold

Birdcage scaffolds are constructed in a grid pattern using standards arranged at regular intervals in parallel lines;

The standards shall be laced together with a grid of ledgers and transoms fixed by right angle couplers at every lift. The transoms in the top working lift may be secured with putlog clips;

Standards shall be spaced at a maximum distance of 2.5 metres in each direction;

The first lift shall be secured at a maximum height of 2.5 metres. Subsequent lifts shall not exceed 2 metres vertical height;

Braces shall be provided for every six standards in each line, in both directions;

In all other respects, a birdcage scaffold shall comply with the general requirements as specified in Section 4.

Doc. Title :



T-4.234.080 Rev. A Page 19 of 32

QQQ AAA TTT AAA RRR

5.8.5 Free Standing Towers/Mobile Scaffolds

Free standing towers may be fitted with castors or wheels for mobility or erected as free standing towers. They support a single working platform only, which shall not project beyond the base area. Access to the platform shall be by vertical ladder lashed internal to the tower at one of the shortest sides;

The maximum loading shall not exceed that for Light Duty Scaffolding as specified in Table l of Section 4, unless the structure has been designed by a competent engineer and design calculations checked;

The smallest base dimension shall be no less than 1.2 metres; The height to base dimension ratio shall be as follows:

- Mobile Towers: No more than three times the minimum base dimension.

- Stationary Towers: No more than three times the minimum base dimension.

Mobile towers shall only be used and moved on firm and level surfaces;

Castors or wheels shall be used which suit the size and loading of the tower. They must be fixed to each extreme corner in the base of mobile towers and secured so that they cannot fall out when tower is moved;

Castors and wheels shall be marked with their safe working load. They shall be fitted with an effective brake which must be applied when the mobile tower is in use;

Lift heights shall not exceed 2.7 metres, with the lowest lift being fixed as near to the base as possible. Transoms and ledgers shall be secured using right angle couplers;

Ledger to ledger (dog leg braces), shall be fixed to the full height of the tower on every side;

Plan braces shall be fixed at every alternate lift, using right angle couplers. The bottom lift and the top lift shall always be plan braced;

Under no circumstances shall horizontal forces be applied at the level of the working platform by pulling heavy cables or ropes;

Under no circumstances shall mobile towers be moved with men or material on the working platform;

In all other respects free standing towers shall comply with the general requirements as specified in this Section.

Doc. Title :



T-4.234.080 Rev. A Page 20 of 32

QQQ AAA TTT AAA RRR

5.8.6 Slung Scaffolds (Single Lift Only)

A grid platform of tubes and couplers suspended below load bearing beams, structural members or other overhead structures;

In all instances, the integrity and adequate strength of the suspension points shall first be determined;

Guard-rails shall not be used as supports for slung scaffolds; Hangers shall not be spaced more than 2.5 metres in either directions; The imposed load shall not exceed that specified for inspection and

Very light Duty Scaffolds in Table 1 of Section 4;

Horizontal tubes used to support the hangers shall be secured to steelwork with S.K. or gravlock fittings. These shall be used in pairs;

Vertical hanging tubes shall be secured with right angle couplers. A check fitting shall be fixed to the hanging tube immediately above the securing right angle coupler, at the suspension point and immediately underneath the right angle coupler securing the ledger, at the working platform;

Adequate braces shall be inserted to remove any sway in either direction;

In all other respects a hanging scaffold shall comply with the general requirements as specified in this Section;

Where a hanging scaffold is to consist of more than one lift, it shall be designed by a competent engineer and design calculations submitted for approval.

5.8.7 Erection of Scaffolding

Note: Prior to erecting any scaffolding structure on project LINDE LE Work at Height - Scaffolding Procedure 0100 W-PE 0020 will be complied with in full. Wherever there is any conflict between the requirements of that procedure and this, then the more stringent shall apply.

Scaffolds shall be erected by competent workmen and shall be under the supervision of competent supervisor.

Whenever possible, workmen erecting a scaffold shall work from the minimum of a three board run. It is not acceptable for scaffolders to be perched on tubes, unless a fall arrest device is provided and secured to a suitable anchorage point at all times.

Ladders shall be properly lashed throughout the vertical height of a scaffold as it progresses. Workmen, erecting the scaffold shall use the ladders to gain access to the working level.

Doc. Title :



T-4.234.080 Rev. A Page 21 of 32

QQQ AAA TTT AAA RRR Tubes or boards being used in the construction of the scaffold shall be

stored flat in a neat and tidy manner. They shall not be stacked vertically against the scaffold.

Loose tubes or boards shall not be left on a scaffolding after its completion.

Where men are erecting a slung or cantilevered section or crawling around on a pipe bridge or other structural steelwork they shall, in all instances, where there is a possibility of falling more than 2 metres, wear a safety belt (or harness) and life line which shall be hooked off at all times.

Where a scaffold is left in an incomplete state, the bottom ladder shall be removed and a notice shall be secured to the lower lift stating Danger Incomplete Scaffold Keep Off.

Where one section of a working platform is incomplete, access may be gained to the completed section provided that a stop end, preventing entry, is placed over the working platform at guard-rail height. A notice stating Danger Incomplete Scaffold Keep Off shall be secured to the stop end.

Handballing shall be the normal method of erecting a scaffold. Where, however, a scaffold consists of a considerable number of lifts a gin wheel may be used, provided the following requirements are met:

a. The gin wheel is accompanied by a valid certificate stating that it has been examined by an approved Professional Engineer within the last six months.

b. The cantilevered tube to which the gin wheel is secured does not project more than 760mm beyond the scaffold, unless it is adequately supported.

c. The cantilevered tube is secured to the inside and outside standard using right angle couplers. Both standards to be diagonally braced.

d. The Fibre Rope which shall have a minimum diameter of 18mm and shall be checked daily by the approved Scaffolding Supervisor and discarded if unfit for use.

e. The maximum load to be lifted by a Gin Wheel shall not exceed 50 kg.

Doc. Title :



T-4.234.080 Rev. A Page 22 of 32

QQQ AAA TTT AAA RRR

5.9 INSPECTION

All scaffolds shall be inspected prior to use and at seven-day periods thereafter;

All scaffold inspections shall be recorded in a register. Inspection Checklists shall be completed and maintained for all new-

build and altered scaffolds during their life-cycle

5.10 SCAFFOLD USERS

Scaffolds shall be used for the purpose to which they have been erected. Under no circumstances shall they be overloaded;

Scaffold users shall under no circumstances interfere with, modify or remove any part of a scaffold (this includes scaffold boards). Interferences with a scaffold shall result in disciplinary action;

If a scaffold requires modification it shall be carried out by an approved Scaffolder on the instruction of the approved Scaffold Supervisor;

If for any reason a user considers a scaffold to be unsafe, the person shall immediately contact his/her supervisor. The supervisor shall immediately remove the Scaffold tag and place barrier tape through the lower rungs of the first access ladder. The supervisor shall then notify the Scaffolding Supervisor.

Doc. Title :



T-4.234.080 Rev. A Page 23 of 32

QQQ AAA TTT AAA RRR

6 ATTACHMENTS

6.1 AUTHORIZATION FLOW

Doc. Title :



T-4.234.080 Rev. A Page 24 of 32

QQQ AAA TTT AAA RRR

GUARDRAILTOE-BOARD

STANDARD

LEADGER

TRANSOM

BASE-PLATE

FOOT-TIE

SOLE-PLATE

PLATFORM LADDER

MA

X. 1

.9 m

MAX. 2

400

MAX. 2400

BRACE

(LIF

T)

(BAY)

(BAY)

6.2 ABBREVIATIONS

Doc. Title :



T-4.234.080 Rev. A Page 25 of 32

QQQ AAA TTT AAA RRR

BASE-PLATE A metal base for distributing the load from a STANDARD.

SOLE-PLATE A timber (normally a short Scaffolding board) used to spread the load from BASE-PLATE over an extended area.

STANDARD A vertical tube used to transmit the load to ground level.

LEDGER A horizontal tube secured by two or more STANDARDS, it prevents STANDARD from bending and acts as a support for TRANSOM.

TRANSOM A tube connecting the outer LEDGER to the inner LEDGER, it forms the working platform.

BRACE A tube incorporated diagonally across two or more tubes in Scaffolding and secured to them in order to ensure stability.

DOUBLE-Couplers A fitting used to fix Scaffolding tubes together at load bearing location.

SWIVEL-Couplers A fitting, which fits over a Scaffolding tube and is used to join one tube to another at non-load bearing location.

GUARDRAIL A tube secured onto the Scaffolding to prevent the fall of a person.

TOE-BOARD A board positioned along the edge of a platform to prevent persons, tools and materials falling from the platform.

LIFT The height between LEDGERs and/or TRANSOMs.

BAY The horizontal distance between two adjacent STANDARDS.

SCAFFTAG A white plastic holder, marked in red, with the international prohibitive sign and the words Do not use Scaffolding, with an insert card, green on one side and yellow on the other.

JOINT-PIN A fitting, which fits inside a Scaffolding tube and is used to join one tube to another, end to end.

TIEBACK A tube used to tie Scaffolding into a secure anchorage.

LADDER-BEAM A purpose made lattice beam incorporated into a Scaffolding structure to form a bridge where an extended distance between STANDARD is necessary.

Doc. Title :



T-4.234.080 Rev. A Page 26 of 32

QQQ AAA TTT AAA RRR

6.3 TYPE OF SCAFFOLDING

Independent scaffolding is constructed in a grid pattern, using STANDARDS arranged at regular intervals in parallel lines. STANDARDS shall be laced together with a grid of LEDGERS and TRANSOMS fixed by DOUBLE-Couplers at every LIFT.

INDEPENDENT (preferred type)

Independent scaffolding shall not be erected to a height of more than 45 meters without design calculations submitted and approved by CONTRACTORs Construction Manager. Freestanding scaffolding is similar to Independent scaffolding, which is as constructed without TIEBACKS. Due to the lack of Tiebacks Freestanding scaffolding shall not be erected to a height of more than 15 meters.

FREESTANDING

Freestanding scaffolding shall comply with the general requirements as specified for Independent Scaffolding, except as follows: -

The height-to-base ratio shall not be greater than 4:1. The smallest base dimension shall be no less than 1.2 m TRANSOM and LEDGER

shall be secured using only DOUBLE-Couplers. Freestanding scaffolding shall have only a single working platform, which shall not

project beyond the base area. LEDGER-to-LEDGER BRACE shall be provided for the full height on every side. Plan

cross BRACE will be fixed at every alternate LIFT, using DOUBLE-Couplers in each (or alternate) bay. Access to the working platform shall be located outside of the scaffolding.

Under no circumstances shall external horizontal forces be applied at the level of the working platform such as steel wire rope or ratchet.

Where scaffolding is erected around tanks/spheres or other large size of vessels, it will be permissible to overlap the boards forming the working platform.

TANK & VESSEL

Except for the above, all other conditions shall comply with the general requirements as specified under Independent Scaffolding.

SUSPENDED Suspended Scaffolding is LEVEL-2 (see Attachment 6.4), constructed in hanging conditions, shall comply with the general requirements except as follows: -

A grid platform of tubes and Couplers suspended below load bearing beams, structural members or other overhead structures.

CONTRACTOR Scaffolding Coordinator shall ensure the integrity and adequate strength of the suspension points prior to commencing erection.

Handrails of equipment/structures shall not be used as supports for suspended scaffolding.

Hangers shall not be spaced more than 2.4 meters in either direction, double Couplers shall be used on all hangers.

The imposed load shall not exceed 2 personnel + 100 kg of material and/or tools. Horizontal tubes used to support the hangers shall be secured to steelwork with

beam-clamp type Couplers. Vertical hanging tubes shall be secured with DOUBLE-Couplers. A check fitting shall be fixed to the hanging tube immediately above the securing

DOUBLE-Couplers, at the suspension point and immediately underneath the DOUBLE-Couplers securing the LEDGER, at the working platform.

Adequate cross BRACE shall be inserted to remove any sway in either direction. CANTILEVER A Cantilever Scaffolding is LEVEL-2, this is an independent tied Scaffolding erected on

beams cantilevering out from a structure/equipment. The cantilever beams should be spaced to suit BAY span to be built on them.

SYSTEM System Scaffolding shall be constructed in strict compliance with the manufacturers instructions and submitted to the Site SHES Manager for review and approval.

Doc. Title :



T-4.234.080 Rev. A Page 27 of 32

QQQ AAA TTT AAA RRR

Mobile towers may be fitted with castor wheels for mobility, it shall comply with the general requirements as specified in Independent Scaffolding, except as follows: -

Consisting only a single working platform, this shall not project beyond the base area. The maximum loading shall not exceed 2 personnel + 100 kg of material and/or tools, unless designed or approved by the CONTRACTORs Area Construction Manager.

Working Platform

Access to the platform shall be by vertical ladder lashed internally to the tower at one of the shortest sides. LIFT heights shall not exceed 3 m, the smallest base dimension shall be not less than 1.2 m, however the height to base ratio shall not be greater than 3:1

Size &

Configuration TRANSOM and LEDGER shall be secured using DOUBLE-Couplers. LEDGER-to-LEDGER BRACE shall be fixed to the full height of the tower on every side. Bracing Plan cross BRACE will be fixed at every LIFT, using DOUBLE-Couplers. Castor wheels shall be used which suit the size and loading of the tower, and shall be suitable for the terrain in which mobile tower is to be used. They must be each installed at extreme corners in the base and secured so that they cannot fall out when tower is moved. Castor

They shall be fitted with an effective brake, which must be applied when the mobile tower is in use. Mobile towers shall only be used and moved on firm and level surfaces. Under no circumstances shall horizontal forces be applied at the level of the working platform. Operation Under no circumstances shall mobile towers be moved with men or material on the working platform.

Ladder Preferably these ladders shall provide a Side-Step onto the working platform. Using this method the ladder can also be installed slanted at 75 deg.

MOBILE TOWER

Doc. Title :



T-4.234.080 Rev. A Page 28 of 32

QQQ AAA TTT AAA RRR

6.4 AUTHORITY LEVEL

Any Scaffolding not exceeding the specification table below can be constructed under the control of the Scaffolding Subcontractors foreman.

Maximum Loads on Platforms

KN/m2 Kg/m2 Kg/Platform Person/Platform

Max No. of Platforms Per BAY

Maximum BAY Span

(m)

LEVEL-1 Standard Scaffold

1.5 150 350 2 men + 100 kg 2 2.4

Abnormally large or complex structures, which do not fall within the accepted criteria of the table above, such complex scaffolding, shall require a closer review by the Scaffolding Subcontractors Supervisor and the CONTRACTOR Scaffolding Supervisor. They shall verify whether the design of Scaffolding requires design calculations and/or off-site design checks defined in BS 5973. If off-site design checks are not required the Scaffolding Subcontractors Site Manager shall prepare a method statement and sketch then the CONTRACTOR Area Construction Manager shall review this, a method statement for dismantling shall be included.

LEVEL-2 Special Scaffold

The erection shall be executed under the direct supervision of the Scaffolding Subcontractors Supervisor. Upon completion of the erection works, the CONTRACTOR Scaffold Supervisor shall verify the structure for compliance.

Any Scaffolding exceeding height of 38 m shall require an off-site design check by a Professional Engineer. This shall be initiated by the Scaffolding Subcontractor and submitted along with drawings, calculations and method statements (inclusive of dismantling work). The Site SHES Manager and the Construction Manager shall review the method statement in terms of safety and verify the constructability. The works shall not commence until all the required documents, drawings and method statements are reviewed and approved, and properly available at the work place.

LEVEL-3 Designed Scaffold

The Scaffolding Subcontractors Supervisor shall, on full time basis, supervise the execution of the works. Upon completion of the erection works, the CONTRACTOR Scaffold Supervisor shall witness the inspection by Architectural Engineer to confirm the structure for compliance.

6.5 JOB SAFETY ANALYSIS

JSA For: T-4.234.080

Normal Approvals: Name Date

JSA by: Bulent Ustaoglu 05.04.2008

Job Supervisor: Mr. Raghavan 05.04.2008

Name DateDiscipline Superindent (Linde)

HSSE Representative (Linde)

2. Permit To Work.

LINDE EMERGENCY TELEPHONE NO. HSSE MANAGER: 583 40 72Pearl HOT LINE : 474 88 88

Note: 1) If any of the tasks involves biological, physical or chemical hazards, then The LINDE Industrial Hygienist must also approve the work. 2) Use additional sheets as necessary. 3) Details on safety (PPE,Hazard etc) and environmental requirements can be found in LINDE and shell Safety and Environment Procedures.

Approval required for hazardous work detailed in the Linde Work Permit Procedure.Changing conditions and emergency procedures: -Stop work. Switch off equipment.Supervisor directs personnel to nearest and safest muster point considering wind direction. Supervisor counts all employees. Missing employees are reported to Linde HSSE Dept. When all clear is given, check with Linde HSSE before returning to work.

1. The following Personal Protective Equipment shall be worn:Approved coveralls, safety glasses, safety helmet, safety steel toe shoes, gloves and double line lanyards.Signature

OTHERS (List Below):

Additional Approvals (Determined by Job Supervisor in correlation with Linde HSSE Manager).

Department/Section doing JSA: HSSE & Construction JSA Members: Mr. Syd Osborne, Mr. BulentJob Performers: Mr. Bulent Mr. Raghavan

General job requirements / Common Personal Protective Equipment.

Signature

JOB SAFETY ANALYSIS FORM

Page No: 1 of 4 Job being analysed: Erection & Dismantling Standard Scaffolding light Duty maximum allowable weight of 1.5kN/m2

NEW REVISED

QQQ AAA TTT AAA RRR

NEW REVISED

RISKRANK

1.1 Personal injury, back injuries, muscle strains, sprains.

D 3 MED1.1.1 Employees shall use lifting

technique's lift with legs not their backs. Get help when needed.

1.1.1.1 Provision for mechanical lifting equipment i.e. trolley, forklift. A 3 LOW

1.2 Slip, Trip & Fall from same level. C 3 MED

1.2.1 Housekeeping shall be a priority, walk and work areas shall be kept free of scaffold materials and supplies.

1.2.1.1

1.2.1.2

Remove unnecessary materials in the work place.Adequate stacking of materials. A 3 LOW

1.3 Hand & Finger injuries.

C 1 LOW

1.3.1 Ensure all employees use proper PPE i.e. coveralls, helmet, safety glasses, gloves and safety shoes.

In addition, ear defenders, dust masks and life vests shall also be provided where necessary

A 1 LOW

2.1 2.1.1 Provide warning sign. 2.1.1.1 Discuss in TSTI

2.1.2 Provide trained & qualified banksmen.

TSTI / TSTO to be conducted.

2.2 Slip, Trip & Fall.

C 3 MED

2.2.1 Housekeeping shall be a priority, walk and work areas shall be kept free of scaffold materials and supplies.

2.2.1.1

A 3 LOW

2.3 2.3.1 Ensure materials are fully secured by competent & certified rigger.

Remove unnecessary materials in the work place.Adequate stacking of materials.

2.3.2 Use of tag lines to control the load.3.1 3.1.1 Ensure sufficient footing.

3.1.2 Ensure correct erection sequence.3.1.3 Ensure correct fixing of joints.3.1.4 Ensure the horizontality and

verticality of the elements.

Only qualified and certified scaffolder to do the job.Ensure that materials conforms to the standard.

A 4 LOW

A 2 LOW

3 Scaffolding erection. Scaffold collapse.

B 4 MED

3.1.1.1

3.1.1.2

Falling materials.

B 2 LOW

A 2 LOW

Trapping injuries.

C 2 LOW

CONTROLSMAIN

CONTROLSITEM ACTIVITY CPCONSEQUENCESHAZARDS / POTENTIAL RP CADDITIONAL

JOB SAFETY ANALYSIS / RISK ASSESSMENTFOR T-4.234.080

SCOPE : Erection & Dismantling Standard Scaffolding light Duty maximum allowable weight of 1.5kN/m2

Residual RiskInitial Risk

1 Manual handling of scaffolding materials.

2 Mechanical movement to laydown area.

QQQ AAA TTT AAA RRR

RISKRANK CONTROLS

MAINCONTROLSITEM ACTIVITY CPCONSEQUENCES

HAZARDS / POTENTIAL RP CADDITIONAL




QQQ AAA TTT AAA RRR

3.2 3.2.1 Qualified and certified scaffolders. 3.2.1.1 Finish the floor with fixed planks.3.2.2 Use of ladders after completing the

first lift.3.2.3 All scaffolders shall wear inspected

full body harness fitted with twin lanyards with shock absorbers, each lanyard shall be fitted with dual action self-locking safety hook for 100% Tie-Off

3.2.4 Completeness of various floors.3.2.5 Ensure that all scaffolders working at

height are properly trained3.2.6 Minimum of 3 planks as a working

platform.3.2.6 Ensure 100% fall protection

3.3 3.3.1 Isolate the erection area by proper barricades.

3.3.2 Install lifting apparatuses such as gin wheel and hoisting rope.

3.3.3 Brace correctly the elements to be installed.

3.4 Untrained Personnel 3.4.1 Training and practice in the type of work to be undertaken is essential

3.4.1.1 Ensure supervision who will be dedicated supervisor as per team A 2

3.4.2 Ensure scaffolders must trained for working at height.

3.4.1.2 Ensure permanent supervision at all times

3.4.3 Ensure all scaffolders are medically fit and do not have a fear for heights.

4.1 4.1.1 Proper sequence of dismantling.4.1.2 Qualified and certified scaffolders.4.1.3 Competent supervisor in charge of

the operation.4.2 4.2.1 Remove all extra components from

structure before starting the dismantling.

4.2.2 Barricade the drop zone.4.2.3 Provide manual lifting devices.4.2.4 Properly fixed the elements before

start lowering operation.4.2.5 100% use of hand gloves,safety

shoes, helmet.

2 LOW

4.2.1.1

4.2.1.2

Provide watchman to control people from entering the barricaded area.Check exposed inner tube of possible materials to fall. A 2

A

LOW

LOW

2 LOW

C 2 LOW

Fall of scaffolders, while working at heights. 3.2.1.1

3.2.1.2

4

4 Dismantling of scaffolds.

Collapse of structure.

B 2 LOW

Uncontrolled fall down of components.

Provide clip/clamp on the standard for the 2nd lift for scaffolders body harness Discuss working at height hazards at daily TSTI. Provided Man Lock hole, to tie-off Lan yard.

B 3 LOW

MEDB LOWA 3

Elements fall down.

C 2 LOW

3.3.1.1 Provide watchman to control people from entering the barricaded area. A

RISKRANK CONTROLS

MAINCONTROLSITEM ACTIVITY CPCONSEQUENCES

HAZARDS / POTENTIAL RP CADDITIONAL




QQQ AAA TTT AAA RRR

4.3 4.3.1 Secure the blocking of all the access to scaffold.

4.3.2 Ensure to put signs on the scaffold status.

4.4 Pinch/cuts. C 1 LOW 4.4.1 Use of proper PPE. A 1 LOW4.5 4.5.1 Housekeeping shall be a priority,

walk and work areas shall be kept free of scaffold materials and supplies.

4.5.2 Dismantled materials must be removed as soon as possible.

4.6 Untrained Personnel 4.6.1 Training and practice in the type of work to be undertaken is essential

4.6.1.1 Ensure supervision who will be dedicated supervisor as per team

4.6.2 Ensure scaffolders must trained for working at height.

4.6.1.2 Ensure permanent supervision at all times

4.6.3 Ensure all scaffolders are medically fit and do not have a fear for heights.

4.6.1.3 Ensure all scaffolders must be trained for working at heights by either PMC or Linde Train the Trainers

5.1 5.1.1 Verify suitability of the base ground condition.

5.1.1.1 Use of scaffold checklist to verify scaffold stability.

5.1.2 Verify horizontality and verticality.5.1.3 Verify the joint tightness.5.1.4 Verify the fixing and integrity of the

wooden/metal planks.5.1.5 Verify the updating of the scafftag.

5.2 Collapse of scaffold - due to weather or strong wind. B 2 LOW

5.2.1 Scaffold must be inspected as a minimum of 7 days. A 2 LOW

5.3 Fall down of objects. B 3 LOW 5.3.1 Ensure toe boards are in place. 5.3.1.1 Ensure housekeeping is being done. A 3 LOW

5.4 Modified scaffold - creation of traps.

5.4.1 Identify scaffolders by color coding or any decals to make sure that only scaffolders are altering/modifying/rectifying the scaffold.

5.4.1.1 Ensure scaffolding modification were properly coordinated.

5.4.2 Only competent scaffolder can alter/modify/rectify an installed scaffold.

5.4.1.2 Eliminate/protect/ signal the traps or any opening.

5 LOW4AHIGH

LOW

3 LOW

3

4.5.1.1

4.5.1.24.5.1.3

Remove unnecessary materials in the work place.Adequate stacking of materials.Provision of scaffold rack near the area.

A3 MED

5 Scaffolding - Maintenance.

Collapse of scaffold - due to weather or strong wind.

B

D

LOW

Slip, Trip & Fall.

C

LOW A 3

A 4

4.3.1.14.3.1.2

HIP/TBT to be conducted.Coordination to other group regarding the dismantling.

Fall of working personnel on partially dismantled scaffolds.

B 4 MED

B 3 LOW LOWA 2

014-MS for General Scaffolding.pdf

Documents

Transcript of 014-MS for General Scaffolding.pdf