.1 In addition to complying with the specific
provisions for fire integrity of bulkheads and decks in this section
and in 9.2, the minimum fire integrity
of bulkheads and decks should be as prescribed in tables 3 and 4.
.2 The following requirements should govern application
of the tables:
-
.1 Tables 3 and 4 should apply respectively to
the bulkheads and decks separating adjacent spaces.
-
.2 For determining the appropriate fire integrity
standards to be applied to divisions between adjacent spaces, such
spaces are classified according to their fire risk as shown in Categories
(1) to (10) below. The title of each category is intended to be typical
rather than restrictive.
The number in parenthesis preceding each category refers to
the applicable column or row in the tables:
-
(1) "Control stations" are spaces as defined in 1.3.28.
-
(2) "Corridors" means corridors and lobbies.
-
(3) "Accommodation spaces" are spaces as defined
in 1.3.34 excluding corridors.
-
(4) "Stairways" are interior stairways, lifts
and escalators (other than those wholly contained within the machinery
spaces) and enclosures thereto.
In this connexion a stairway
which is enclosed only at one level should be regarded as part of
the space from which it is not separated by a fire door.
-
(5) "Service spaces (low risk)" are lockers and
store-rooms having areas of less than 2 square metres, drying rooms
and laundries.
-
(6) "Machinery spaces of Category A" are spaces
as defined in 1.3.26.
-
(7) "Other machinery spaces" are spaces as defined
in 1.3.27 other than machinery
spaces of Category A.
-
(8) "Hazardous areas" are areas as defined in 1.3.29.
-
(9) "Service spaces (high risk)" are galleys,
pantries containing cooking appliances, paint and lamp rooms, lockers
and store-rooms having areas of 2 square metres or more and workshops
other than those forming part of the machinery spaces.
-
(10) "Open decks" are open deck spaces, excluding
hazardous areas.
Table 9-1 Fire Integrity of
Bulkheads Separating Adjacent Spaces
| Spaces
|
(1)
|
(2)
|
(3)
|
(4)
|
(5)
|
(6)
|
(7)
|
(8)
|
(9)
|
(10)
|
| Control stations
|
(1)
|
A-O4
|
A-0
|
A-60
|
A-0
|
A-15
|
A-60
|
A-15
|
A-60
|
A-60
|
*
|
| Corridors
|
(2)
|
|
C
|
B-0
|
B-0
A-02
|
B-0
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Accommodation spaces
|
(3)
|
|
|
C
|
B-0
A-02
|
B-0
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Stairways
|
(4)
|
|
|
|
B-0
A-02
|
B-0
A-02
|
A-60
|
A-0
|
A-0
|
A-0
|
*
*
|
| Service spaces (low risk)
|
(5)
|
|
|
|
|
C
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Machinery spaces of Category
A
|
(6)
|
|
|
|
|
|
*1
|
A-01
|
A-60
|
A-60
|
*
|
| Other machinery spaces
|
(7)
|
|
|
|
|
|
|
A-01
3
|
A-O
|
A-O
|
*
|
| Hazardous areas
|
(8)
|
|
|
|
|
|
|
|
–
|
A-O
|
–
|
Service spaces
(high
risk)
|
(9)
|
|
|
|
|
|
|
|
|
A-O3
|
*
|
| Open decks
|
(10)
|
|
|
|
|
|
|
|
|
|
–
|
Note
1
Where the space contains an emergency power source or components
of an emergency power source that adjoins a space containing a ship's
service generator or the components of a ship's service generator, the
boundary bulkhead or deck between those spaces should be an "A-60"
Class division.
Note
2
For clarification as to which note applies see paragraphs 9.2.1
and 9.2.3.
Note
3
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 require a bulkhead
but a galley next to a paint room requires an "A-O" bulkhead.
Note
4
Bulkheads separating the navigating bridge chartroom and radio
room from each other may be "B-O" rating.
Note
* Where an asterisk appears in the tables
the division is required to be of steel or equivalent material but is
not required to be of "A" Class standard.
|
Table 9-2 Fire Integrity or Decks
Separating Adjacent Spaces
| Space Below↓
|
Space Above 
|
(1)
|
(2)
|
(3)
|
(4)
|
(5)
|
(6)
|
(7)
|
(8)
|
(9)
|
(10)
|
| Control stations
|
(1)
|
A-0
|
A-0
|
A-0
|
A-0
|
A-0
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Corridors
|
(2)
|
A-0
|
*
|
*
|
A-0
|
*
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Accommodation spaces
|
(3)
|
A-60
|
A-0
|
*
|
A-0
|
*
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Stairways
|
(4)
|
A-0
|
A-0
|
A-0
|
*
|
A-0
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Service spaces (low risk)
|
(5)
|
A-15
|
A-0
|
A-0
|
A-0
|
*
|
A-60
|
A-0
|
A-0
|
A-0
|
*
|
| Machinery spaces of Category
A
|
(6)
|
A-60
|
A-60
|
A-60
|
A-60
|
A-60
|
*1
|
A-60
|
A-60
|
A-60
|
*
|
| Other machinery spaces
|
(7)
|
A-15
|
A-0
|
A-0
|
A-0
|
A-0
|
A-01
|
*1
|
A-0
|
A-0
|
*
|
| Hazardous areas
|
(8)
|
A-60
|
A-0
|
A-0
|
A-0
|
A-0
|
A-60
|
A-0
|
–
|
A-0
|
–
|
| Service spaces (high risk)
|
(9)
|
A-60
|
A-0
|
A-0
|
A-0
|
A-0
|
A-0
|
A-0
|
A-0
|
A-03
|
*
|
| Open decks
|
(10)
|
*
|
*
|
*
|
*
|
*
|
*
|
*
|
–
|
*
|
–
|
Note
1
Where the space contains an emergency power source or components
of an emergency power source that adjoins a space containing a ship's
service generator or the components of a ship's service generator, the
boundary bulkhead or deck between those spaces should be an "A-60"
Class division.
Note
2
For clarification as to which note applies see paragraphs 9.2.1
and 9.2.3.
Note
3
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 require a bulkhead
but a galley next to a paint room requires an "A-O" bulkhead.
Note
4
Bulkheads separating the navigating bridge chartroom and radio
room from each other may be "B-O" rating.
Note
* Where an asterisk appears in the tables
the division is required to be of steel or equivalent material but is
not required to be of "A" Class standard.
|