Complying with NFPA 70E in Construction A Look at the 2015 ... DeBusk - Complying with NFPA... ·...

Complying with NFPA 70E

in Construction – A Look at

the 2015 Update

Presenter:

Richard DeBusk, CSP

Du-All Safety, LLC

Objective of Presentation

Look at the specific changes in the 2015 edition

and how these affect the safety programs and

practices of clients

Focus on construction clients – but address all

types of work addressed by NFPA 70E

Discuss key aspects of NPFA 70E

implementation as a value proposition Improving safety improves organizational performance

NFPA 70E: 2015 Edition / Presented by Richard DeBusk 2

Just What is NFPA 70E

Basic electrical safety

standard/guide

Associated with NFPA 70 –

National Electrical Code

Recognized by OSHA

OSHA – What

NFPA 70E - How


OSHA electrical standards are

Subpart S and K


CalOSHA Electrical Safety General Orders (low voltage and high voltage)

FedOSHA 29CFR1910 Subpart S and 29CFR1926 Subpart K - Electrical

NFPA 70, National Electrical Code

Implemented as California Electrical Code

NFPA 70E, Standard for Electrical Safety in the Workplace

UL Product Standards

IEEE Color Books and IEEE 1584-2002, “IEEE Guide to Performing Arc Flash Hazard Calculations”

Numerous Electrical Codes and

Standards

Scope of NFPA 70E

Addresses electrical

safety related work

practices…

Installation

Inspection

Maintenance

Demolition


Construction is included!

NFPA 70E Overview

First released in 1979, newest edition is 2015

Made up of three chapters

Chap 1, Safety-Related Work Practices

Chap 2, Safety-Related Maintenance

Chap 3, Safety for Special Equipment

Annexes


7

Organization of Chapter 1

Safety-Related Work Practices

Worker

Exposed to E.

Hazard?

NFPA 70E

Not Required

Establish

Electrically

Safe Work

Condition

(LOTO)

Article 120

Energized

Work

Justified?

Work Involving

Electrical

Hazard

Article 130

•EEWP

•Risk Analysis

•Pre-job Briefing

•Boundaries

•PPE

•Etc.

NO

NO

YES

YES

NFPA 70E: 2015 Edition / Presented by Richard DeBusk

What is New for 2015 (partial list)

Maintenance

Risk assessment versus hazard assessment

Electrical safety program … appropriate to the risk

Prohibited approach boundary eliminated

New Arc Flash Hazard tables

Change in PPE – HRC-0 eliminated and HRC now called Arc

Flash PPE Category

Work involving “normal operations”

More detailed training requirements

Changes to labeling requirements


Electrical Safety Program

Article 110.1(B)

Electrical Safety Program.

Maintenance. The electrical

safety program shall include

elements that consider condition

of maintenance of electrical

equipment and systems.


Risk Assessment Requirement Previous editions referred to Hazard Assessment

Article 110.1(G)

An electrical safety program shall include risk assessment

procedure that addresses employee exposure to electrical

hazards

Identify hazards

Assess risks

Implement risk controls

An example risk assessment procedure is included in Annex F.

Why the new emphasis on Risk?


Risk

Assessment

Facilitates the

Application of

Hierarchy of

Controls


Examples

Requirement for working in

an electrically safe work

condition (ESWC) would

be an example of control at

what level in hierarchy?

Testing and

troubleshooting

What type of hazard

control?


Changes to Approach Boundaries

Old

Approach

Boundaries

Includes

Prohibited

Approach

Boundary


New Approach Boundaries

Prohibited

approach

boundary

eliminated


Energized

part

Restricted Limited

Calculated distance or use tables

Flash

Protection

Boundary

Table 130.4(D)(A) Approach Boundaries for AC Circuits… and 130.7(C)(15)(A)(a) and

(b) Arc Flash Hazard Identification …

42 inches for 480V

12 inches for 480V

Why Eliminate PAB?

No specific

action is required

of workers at the

Prohibited

Approach

Boundary, so

what value does

it add?


Typical Training Slide

New Arc Flash Tables

Old Table: Table 130.7(C)(15)(a)


New Tables

First, this table, then:


Second Table

This table


PPEC #1

4 cal/cm2 Min.

HRC #0

(Eliminated in

2015):

PPEC #2

8 cal/cm2 Min.

PPEC #3

25 cal/cm2 Min.

PPEC #4

40 cal/cm2 Min.

PPE Categories New PPE Categories


What Else Changed in PPE

Arc Flash PPE Category now

used

HRC0 eliminated, PPE now

starts with Category 1

What about current

procedures and current

labels?


Do I have to revise this Label?

What About Work Under Cat 0?

Task

Work on control circuits with exposed energized

conductors at 120 volts

Arc flash hazard – no

PPE required from table 130.7 – Flash Hazard PPE

Categories

None

What PPE should the employee wear to perform this

task? NFPA 70E: 2015 Edition / Presented by Richard DeBusk 21

One Typical Question Has Been

Answered – Sort Of!!

Do I have to wear electrical

PPE if I am just operating

electrical equipment?

Article 130.2(A)(4) Normal

Operations


Operating electrical equipment

Normal Operation

Normal operation of equipment shall be

permitted where all of the following conditions

are satisfied:

1. The equipment is properly installed

2. The equipment is properly maintained

3. The equipment doors are closed and secured

4. All equipment covers are in place and secured

5. There is no evidence of impending failure


How Do I Know if Equipment

Meets Conditions Properly installed – installed per codes and standards

and manufactures recommendations

Properly maintained – maintained in accordance with

applicable codes and standards and manufacturers

recommendations

Evidence of impending failure – evidence could

include arcing, overheating, loose equipment part,

visible damage


Examples – Normal Operation?


Changes in Training Requirements

Article 110.2 Training

Requirements

Emergency Procedures versus

Contact Release

Annual refresher training now

required

Annual training verification and

documentation now required


Changes in Training Requirements

Increased emphasis on decision making for

qualified workers

Perform job safety planning

Identify electrical hazards

Assess the associated risk

Select the appropriate risk control method from

hierarchy of controls

Refresher training required every 3-years


New Labeling Requirements

Article 130(D) – Equipment

Labeling

Required

Nominal voltage

Arc flash boundary

One of these:

Incident energy or Arc Flash

PPE Category

Minimum arc rating of clothing

Site-Specific level of PPE


New Labeling Requirements

If label is inaccurate,

must be updated

Exception

Labels applied prior to

9/30/11 are acceptable if

they contain the available

incident energy or

required level of PPE


Some Common Labeling


Take Away – Help Clients Understand:

What the true cost of a

serious electrical accident

is for their employees,

their business and them –

the manager/owner

They are willing and able

to reduce the

probability/severity of that

accident?


Stanford Linear Accelerator Center (SLAC)

Electrical Accident in 2004

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