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发表于 2023-3-8 07:51
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来自: 中国山东威海
404 Cable bunches not complying with IEC 60332-3 or other recognised standard fire spread test.
a) Cable bunches, not complying with flame retardant properties according to IEC 60332-3, shall be provided
with fire stops having at least class B-0 penetration properties at the following locations:
— cable entries at the main and emergency switchboards
— where cables enter engine control rooms
— cable entries at centralised control panels for propulsion machinery and essential auxiliaries
— at each end of totally enclosed cable trunks.
Additional fire stops need not be fitted inside totally enclosed cable trunks.
b) In enclosed and semi-enclosed spaces, cable runs not complying with flame retardant properties according
to IEC 60332-3, shall be provided with fire stops having at least B-0 penetrations:
— at every second deck or approximately 6 metres for vertical runs
— at every 14 metres for horizontal.
Alternatively, to additional fire stops, fire protective coating may be applied to the cable bunch according
to the following:
— to the entire length of vertical runs
— to at least 1 m in every 14 m for horizontal runs.
Alternatively, type approved fire protective coating or mats installed as described in the type approval
certificate can be accepted. |
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