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The article 11.6.3 states the requirements for electrical cables used in
pressure differential systems:
a) fire-resisting cables meeting the temperature and time criteria in accordance with Table 7 or
b) enclosed with fire-resisting construction, or installed external to the building where the cables cannot be endangered by fire, and
c) cables protected from fire shall comply with the classification temperature/time of the component that they serve.
I'm reading again and again and I'm still not sure if the conditions should be met as follows:
1. ( a or b ) and c
2. a or ( b and c )
Please help.
pressure differential systems:
a) fire-resisting cables meeting the temperature and time criteria in accordance with Table 7 or
b) enclosed with fire-resisting construction, or installed external to the building where the cables cannot be endangered by fire, and
c) cables protected from fire shall comply with the classification temperature/time of the component that they serve.
I'm reading again and again and I'm still not sure if the conditions should be met as follows:
1. ( a or b ) and c
2. a or ( b and c )
Please help.
