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3.1.9.3.(2) | Application | Intent |
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| Application | Application 1: Totally enclosed non-metallic raceways conforming
to Article 3.1.5.20., optical fibre cables, and electrical wires
and cables, single or grouped, with combustible insulation,
jackets or sheathes that conform to the requirements of Clause 3.1.5.18.(1)(a) and
that are not installed in totally enclosed noncombustible raceways,
which penetrate an assembly required to have a fire-resistance
rating, and where the overall diameter of the single or grouped wires
or cables, or the raceways is not more than 25 mm.
This applies to buildings described
in Sentence 1.3.3.2.(1) of Division A.
Exceptions:
except as stated in Sentence 3.1.9.3.(3), which applies to
single conductor metal sheathed cables.
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| Intent | Intent 1: To exempt certain service equipment from the application
of Sentence 3.1.9.2.(1) if certain conditions are met, on the basis
that the equipment is deemed to insignificantly contribute to the growth and
spread of fire. |
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