14. Fire Insulation in ER_rev01 [Compatibility Mode].pdf

02 September 2009

15. Fire Insulation in E/R

Course 2004

© Det Norske Veritas AS. All rights reserved.

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Purpose of the regulations/rules:

Containment of fire/ prevent spreading of fire.

Avoid excessive temperatures in neighbouring area.

Maintain structural integrity.

Fire Insulation - E/R


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The fire integrity of a division between two spaces will depend

upon the category of the spaces.

The category of a space is defined based upon the function and fire

risk of the space.

Basic Design Principles:



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Fire Risk Space A

Function Space A

Fire Risk Space B

Function Space B

Category Space A

Category Space B

SOLAS FireIntegrity Matrix

Fire Integrity DivisionSpace A & B



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Table B1 Fire integrity of bulkheads separating adjacent spaces

Spaces (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)

Control stations (1) A-0 5) A-0 A-60 A-0 A-15 A-60 A-15 A-60 A-60 *) A-60

Corridors (2) C B-0 B-0

A-0 3) B-0 A-60 A-0 A-0 A-0 *) A-30

Accommodation spaces (3) C 1)2) B-0

A-0 3) B-0 A-60 A-0 A-0 A-0 *) A-30

Stairways (4) B-0

A-0 3) B-0

A-0 3) A-60 A-0 A-0 A-0 *) A-30

Service spaces (low risk) (5) C A-60 A-0 A-0 A-0 *) A-0

Machinery spaces of category A

(6) *) A-0 A-0 7) A-60 *) A-60 6)

Other machinery spaces (7) A-0 4) A-0 A-0 *) A-0

Cargo spaces (8) *) A-0 *) A-0

Service spaces (high risk) (9) A-0 4) *) A-30

Open decks (10) - A-0

Ro-ro cargo spaces (11) *) 8)

See notes under Table B2.

Basic requirements;


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Basic requirements;

Table B2 Fire integrity of decks separating adjacent spaces

Space below↓ above→ (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)

Control stations (1) A-0 A-0 A-0 A-0 A-0 A-60 A-0 A-0 A-0 *) A-60

Corridors (2) A-0 *) *) A-0 *) A-60 A-0 A-0 A-0 *) A-30

Accommodation spaces (3) A-60 A-0 *) A-0 *) A-60 A-0 A-0 A-0 *) A-30

Stairways (4) A-0 A-0 A-0 *) A-0 A-60 A-0 A-0 A-0 *) A-30

Service spaces (low risk) (5) A-15 A-0 A-0 A-0 *) A-60 A-0 A-0 A-0 *) A-0

Machinery spaces of category A(6) A-60 A-60 A-60 A-60 A-60 *) A-60 9) A-30 A-60 *) 3) A-60

Other machinery spaces (7) A-15 A-0 A-0 A-0 A-0 A-0 *) A-0 A-0 *) A-0

Cargo spaces (8) A-60 A-0 A-0 A-0 A-0 A-0 A-0 *) A-0 *) A-0

Service spaces (high risk) (9) A-60 A-0 A-0 A-0 A-0 A-60 A-0 A-0 A-0 4) *) A-30

Open decks (10) *) *) *) *) *) *) *) *) *) - *)

Ro-ro cargo spaces (11) A-60 A-30 A-30 A-30 A-0 A-60 A-0 A-0 A-30 *) *) 8)

To be applied to both Tables B1 and B2, as appropriate.

1) No special requirements are imposed upon bulkheads in methods IIC and IIIC fire protection.2) In case of method IIIC <<B>> class bulkheads of <<B-0>> rating shall be provided between spaces or groups of spaces of 50m2 and over in area.3) For clarification as to which applies, see 200 and 500.4) Where spaces are of the same numerical category and superscript 4) appears, a bulkhead or deck of the rating shown in the tables is only required when the

adjacent spaces are for a different purpose, e.g. in category (9). A galley next to a galley does not required a bulkhead but a galley next to a paint room or agalley next to a provision store requires an <<A-0>> bulkhead.

5) Bulkheads separating the wheelhouse, chartroom and radio room from each other may be <<B-0>> rating.6) <<A-0>> rating may be used if no dangerous goods are intended to be carried or if such goods are showed not less than 3m horizontally from such bulkhead.7) Cargo spaces in which dangerous goods are intended to be carried will be specially considered.8) Bulkheads and decks separating ro-ro cargo spaces shall be capable of being closed reasonably gastight and such divisions shall have <<A>> class integrity

on so far as is reasonable and practicable.9) Fire insulation need not be fitted if the machinery spaces in category (7) has little or no fire risk. (e.g. air conditioning room)

* Where an asterisk appears in the tables, the division is required to be of steel or other equivalent material but is not required to be of <<A>> class standard.


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Definitions:

A Class Divisions

B Class Divisions

C Class Divisions



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Are those divisions formed by bulkheads and decks which comply with the following criteria:

1. They are constructed of steel or other equivalent material.

2. They are suitably stiffened.

3. They prevent the passage of smoke and flame to the end of the 1

hour standard fire test.

A Class Divisions



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4. They are insulated with approved non-combustible material such that the average temperature of the unexposed side will not rise more than 140 above the original temperature, nor will the maximum “hot spot” temperature rise more than 180 above the original temperature within the following time:

5. The administration has required a test of a prototype bulkhead or deck in accordance with the IMO fire test procedures code to ensure that it meets the requirements for integrity and temperature rise.

Class A-0

Class A-15

Class A-30

Class A-60

15 Minutes

0 Minutes

30 Minutes

60 Minutes

A Class Divisions



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576

679

738

841

945

500

600

700

800

900

1000

0 5 10 15 20 25 30 35 40 45 50 55 60 65Min.

T (°C)

Standard Fire Test - Furnace Temperature:



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Are those divisions formed by bulkheads, decks, ceilings or linings which comply with the following criteria:

2. They prevent the passage of flame to the end of the first half hour of the standard fire test.

1. They are constructed of approved non-combustible materials and all materials used in the construction and erection of B class divisions are non-combustible. (Combustible veneers may be permitted.)

B Class Divisions



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3. They have an insulation value such that the average temperature of the unexposed side will not rise more than 140°C above the original temperature, nor will the maximum “hot spot”temperature rise more than 225°C above the original temperature, within the following time:

4. The administration has required a test of a prototype division in accordance with the IMO fire test procedure code to ensure that it meets the requirements for integrity and temperature rise.

Class B-0

Class B-15 15 Minutes

0 Minutes

B Class Divisions



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No requirements to integrity (passage of flame/smoke) or

temperature rise on the unexposed side.

Are divisions constructed of approved non-combustible materials

(combustible veneers may be permitted).

C Class Divisions



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EMERGENCYESCAPE TRUNK

STEERING GEAR ROOM

ACCOMMODATION

E/R

CLASS A-60

A - 60 REQUIREDIF THE S/G ROOMCONTAIN EMERGENCYFIRE PUMP

CLASSA - 0


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Case Study 13:

Please review the design below and present your comments, if any.

A - 0

A - 15 1 7

5

2



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SOLAS 2000 Amendments Ch.II-2 Reg.3/5/6/8/9

SOLAS 1974 as amended Ch.II-2 Reg.42/43/44/46/47/49/50/56/57/58

DNV Rules for Ships Pt.5 Ch.3 Sec.7

References:


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Case 14 ;


EMERGENCYESCAPE TRUNK

STEERING GEAR ROOM

ACCOMMODATION

E/R

CLASS A-60

A - 60 REQUIREDIF THE S/G ROOMCONTAIN EMERGENCYFIRE PUMP

CLASSA - 0

A-60 Deck

Please review this design and present your comments, if any.

14. Fire Insulation in ER_rev01 [Compatibility Mode].pdf

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