Iranian Classification Society Rules

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2. Spaces intended for storage and handling of tender boats, cars, motorbikes or similar equip- ment are to comply with requirements as for enclosed vehicle spaces (ro-ro cargo spaces) in HSC Code with respect to structural fire protection (30 minutes rating is acceptable) and ventilation. Relaxation of these requirements can be considered on a case by case basis for storage spaces below 10 m or equipment using only fuel with flashpoint above 60 C.


Section 2 Structural Fire Protection


201. Classification of space use and structural fire protection times


1. Table 7.1.1 specifying the structural fire protection times for separating bulkheads and decks is to

be in accordance with the following grouping of space use. However, the intended to be typical rather than restricted.

(1) Areas of major fire hazard include the following spaces:

- Machinery spaces

- Spaces containing dangerous goods

- Store-rooms containing flammable liquids

- Galleys

- Trunks in direct communication with the above spaces.

(2) Areas of moderate fire hazard include the following spaces:

- Auxiliary machinery spaces, as defined in 102. 8.

- Bond stores containing packaged beverages with alcohol content not ume

- Service spaces

- Crew accommodations containing sleeping berths

- Trunks in direct communication with the above spaces.

(3) Areas of minor fire hazard include the following spaces:

- Auxiliary machinery spaces, as defined in 102. 9.

- Cargo spaces

- Fuel tank compartments

- Tanks, voids and areas of little or no fire risk

- Public spaces

- Crew accommodation other than that mentioned in above (2)

- Trunks in direct communication with the above spaces.

- stairway enclosures

title of each category is


exceeding 24 % by vol-

image


(4) Control stations

- Control stations are as defined in 102. 10.

(5) Evacuation stations and external escape routes include the following areas:

- External stairs and open decks used for escape routes

- Muster stations, internal and external

- Open deck spaces and enclosed promenades forming lifeboat and liferaft embarkation and low- ering stations

- The craft's side to the waterline in the lightest seagoing condition, superstructure and deck-

house sides situated below and adjacent to liferaft`s and evacuation slide`s embarkation

(6) Open spaces include the following areas:

areas

- Open space locations other than evacuation stations and external escape stations.

routes and control


image

Table 7.1.1 Structural Fire Protection Times for Separating Bulkheads and Deck



A


B


C


D


E


F


Areas of major fire hazard

A


601

601


60

30


607


2


60


2,3


60


2


606

-

Areas of moderate fire hazard

B


5,1


5,1


5


2


60


2,3


5


2


2

-


Areas of minor fire hazard

C


2


2


307


2,3


2


2


2

-


Control stations

D


2,3


2,3


2,3


2


2

-

Evacuation stations and escape routes

E


2


2


2

-


Open spaces

F


-

-

NOTES :

The figures on either side of the diagonal line represent the required struct2ral fire protection time for the protection system on the relevant side of the division. The small note numbers are as specified below:

1. Where adjacent spaces are in the same alphabetical category and a note 2 appears, a bulkhead or deck between such spaces need not be fitted if deemed unnecessary by the Society. For example, a bulk- head need not be required between two store-room. A bulkhead is, however, required between a ma- chinery space and a special category space even though both spaces are in the same category.

2. No structural fire protection requirements. However, smoke-tight non-combustible or fire-restricting ma- terial is required.

3. Control stations which are also auxiliary machinery spaces are to be provided with 30 minutes struc- tural fire protection.

4. There are no special requirements for material or integrity of boundaries where only a dash appears in the tables.

5. The fire protection time is 0 minute and the time for prevention of passage of smoke and flame is 30 minutes as determined by the first 30 minutes of the standard fire test.

6. When steel construction is used, fire-resisting divisions need not comply with 102. 1 (5).

7. When steel construction is used, fire-resisting divisions adjacent to void spaces need not comply with

102. 1 (5).


2. Ventilation openings may be accepted in entrance doors to public toilets if positioned in the lower portion of such doors and fitted with closable grilles operable from the public space side and made of non-combustible or fire-restricting material.

image


202.

Structural Fire Protection


1. The requirements below apply to all craft irrespective of construction material.

(1) Engine room of major fire hazard and tender space for equipment with gasoline in their tanks are to be enclosed with fire protection of minimum 30 minutes rating.

(2) Part of engine room boundary facing oil tanks is to be provided with 60 minutes rated fire re- sisting divisions.

(3) Galley, sauna, stores above 10 m , store of major fire hazard and tender space for equipment with diesel in their tanks need also to be protected with 30 minutes rating for the fire resisting

divisions. However, Lower rating (for instance B-15 panels tested according to IMO FTP Code)

can be considered based on the assessed hazard of

can be accepted towards open spaces.

2. Other areas need not to be provided with structural fire

these spaces. Even lower or no fire rating


protection.


3. The hull, superstructure, structural bulkheads, decks, deckhouses and pillars are to be constructed of approved non-combustible materials having adequate structural properties. The use of other fire-re- stricting materials may be permitted as in compliance with the requirements of this chapter.


203.