A fire resistant cable is proof tested by exposure to a standard fire for
- 5 minutes.
- 15 minutes.
- 30 minutes.
Explanation from PART66Online
A fire-resistant cable is proof tested by exposure to a standard fire for 5 minutes, the lower protection category. This contrasts with fireproof cable, which must withstand about 15 minutes, so the 5-minute exposure defines the fire-resistant rating.
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obrien99 asked · 18 Apr 2012
is this correct? anyone got any info on fire proof cables. I would of thought 15 mins would be the correct answer
Community Comments (6)
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PART66Online
19 Apr 2012
Can't find any proof link at the moment. :(
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obrien99
21 Apr 2012
3.4 Fire Resistant Cables
This type of cable is required to retain a defined level of electrical insulation in the
presence of fire for five minutes, as defined in BCAR Section D1-2 paragraph 1.17,2
and JAR 1. 'Fire Resistance' should not be confused with 'high temperature' and fire
resistant types should only be employed where this property is required because
other characteristics, such as fluid resistance, will usually be poorer than could be
expected from a non fire resistant high temperature cable.
This type of cable is required to retain a defined level of electrical insulation in the
presence of fire for five minutes, as defined in BCAR Section D1-2 paragraph 1.17,2
and JAR 1. 'Fire Resistance' should not be confused with 'high temperature' and fire
resistant types should only be employed where this property is required because
other characteristics, such as fluid resistance, will usually be poorer than could be
expected from a non fire resistant high temperature cable.
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obrien99
21 Apr 2012
found on a CAA airworthiness notice fire PROOF cables should last 15 mins
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PART66Online
23 Apr 2012
Really? Okay, I'll change it to 15 mins.
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obrien99
24 Apr 2012
no sorry you misunderstood, fire PROOF cables should last 15 mins
but fire RESISTANT cables only need to last 5 mins.
the question was initially correct.
apologies for the confusion.
but fire RESISTANT cables only need to last 5 mins.
the question was initially correct.
apologies for the confusion.
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PART66Online
25 Apr 2012
No problem. I'll change it back. :)
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