MSC.1/Circ.1269
AMENDMENTS TO THE REVISED GUIDELINES FOR THE APPROVAL OF EQUIVALENT WATER-BASED
FIRE-EXTINGUISHING SYSTEMS FOR MACHINERY SPACES AND CARGO PUMP-ROOMS
(MSC/CIRC.1165)
3
June 2008
1.
The Committee, at its eightieth session (11 to 20 May 2005), after having
considered the proposal by the forty-ninth session of the Sub-Committee on Fire
Protection regarding review on the Guidelines for the approval of equivalent
water-based fire-extinguishing systems as referred to in SOLAS 74 for machinery
spaces and cargo pump-rooms (MSC/Circ.668, as amended by MSC/Circ.728),
approved Revised Guidelines for the approval of equivalent water-based
fire-extinguishing systems for machinery spaces and cargo pump-rooms
(MSC/Circ.1165).
2.
The Committee, at its eighty-third session (3 to 12 October 2007), after having
considered the proposal by the Sub-Committee on Fire Protection at its
fifty-first session, approved amendments to figures 1, 2 and 3 of the Revised
Guidelines for the approval of equivalent water-based fire-extinguishing
systems for machinery spaces and cargo pump-rooms (MSC/Circ.1165) by means of
circular MSC.1/Circ.1237.
3.
The Sub-Committee on Fire Protection, at its fifty-second session (14 to 18
January 2008), prepared further amendments to the Revised Guidelines for the
approval of equivalent water-based fire-extinguishing systems for machinery
spaces and cargo pump-rooms (MSC/Circ.1165).
4.
The Committee, at its eighty-fourth session (7 to 16 May 2008), after having
considered the above proposal, approved the amendments to the Revised
Guidelines for the approval of equivalent water-based fire-extinguishing
systems for machinery spaces and cargo pump-rooms (MSC/Circ.1165), set out in
the annex.
5.
Member Governments are invited to apply the annexed amendments to the Revised
Guidelines when approving equivalent water-based fire-extinguishing systems for
machinery spaces and pump-rooms on and after 9 May 2008, and bring them to the
attention of ship designers, shipowners, equipment manufacturers, test
laboratories and other parties concerned.
Annex.
AMENDMENTS TO THE REVISED GUIDELINES FOR THE APPROVAL OF EQUIVALENT WATER-BASED
FIRE-EXTINGUISHING SYSTEMS FOR MACHINERY SPACES AND CARGO PUMP-ROOMS
(MSC/CIRC.1165)
1.
In paragraph 15, the reference "paragraph 10" is replaced by the
reference "paragraph 11".
2.
Appendix A is amended as follows:
.1 in paragraph
3.2, the round brackets around the reference "6.2" are changed to
square brackets;
.2 paragraph
3.2.3 is inserted as follows:
"3.2.3
The nominal release temperature that should be marked on the nozzle should be
that determined when the nozzle is tested in accordance with 4.6.1, taking into
account the specifications of 3.3.";
.3 in paragraph
3.5.1, last sentence, the words "or the nozzle should then comply with the
requirements of 4.11" are deleted;
.4 paragraph
3.5.2 is replaced by the following:
"3.5.2
The nozzle discharge components should not sustain significant damage as a
result of the functional test specified in 4.5 and should have the same flow
constant range within 5 % of values previously determined per 3.4.1.";
.5 in paragraph
3.7.2.1, the words "in accordance with 4.9.2.1" are deleted;
.6 in paragraph
3.7.2.2, the words "when tested in accordance with 4.9.2.2" are
deleted;
.7 in paragraph
3.11.1, the references "4.12.1" and "4.12.2" are replaced
by the references "4.11.1" and "4.11.2", respectively;
.8 in paragraph
3.11.2, the references "4.12.3" and "4.12.2" are replaced
by the references "4.11.3" and "4.11.2", respectively;
.9 in paragraph
3.11.3, all references "4.12.4" are replaced by the reference
"4.11.4";
.10 in paragraph
3.11.4, all references "4.12.5" are replaced by the reference
"4.11.5";
.11 in paragraph
3.12.1, all references "4.13.1" are replaced by the reference
"4.12.1";
.12 in paragraph
3.12.2, all references "4.13.2" are replaced by the reference
"4.12.2";
.13 in paragraph
3.13, all references "4.15" are replaced by the reference
"4.14";
.14 in paragraph
3.15, all references "4.14" are replaced by the reference
"4.13";
.15 paragraph
3.15.3 is deleted;
.16 in paragraph
3.16, all references "4.16" are replaced by the reference
"4.15";
.17 in paragraph
3.17, the reference "4.17" is replaced by the reference
"4.16" and the reference "4.1" is replaced by the reference
"4.16";
.18 in paragraph
3.18, the references "4.18" and "4.21" are replaced by the
reference "4.17";
.19 in paragraph
3.19, the references "4.19" and "4.22" are replaced by the
reference "4.18";
.20 in paragraph
3.20, all references "4.23" are replaced by the reference
"4.19";
.21 section 3.21
(Water shield) is deleted but existing paragraph numbers should be retained;
.22 in paragraph
3.22, the references "4.21" and "4.21.3" are replaced by
the references "4.20" and "4.20.3", respectively;
.23 in paragraph
4.3, the reference "(see 3.6)" is added before the reference
"[7.3]";
.24 in paragraph
4.6.2, the reference "(see 3.4)" is replaced by the reference
"(3.14)";
.25 in paragraph
4.11.1.5, the reference "3.1.5" is replaced by the reference
"3.5.1";
.26 in paragraph
4.11.2.4, the references "4.12.5.5" and