Detailed Product Description
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Name Type and Use Scope of Products
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Name
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Type
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Class
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Use Scope
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Fire-resisting series
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NH
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ⅠA
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A.D. rated voltage 8.7/15kv or less plastic insulating and fine-resisting power cable; A.D. rated voltage 450/750v or less plastic insulating and fine-resisting control cable and A.D. rated voltage 450/750v or less plastic insulating and fine-resisting cable
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ⅠB
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ⅡA
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ⅡB
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ⅢA
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ⅢB
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ⅣA
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ⅣB
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Technical Properties or Conditions
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Cable may undergo fire-proof test, reaching the requirement of GB/T18380.3;it may, under the flame temperature below 750-800℃,put1,000v voltage, and burn for 90 min, and the connecting fuse 3A will not break.
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Except for conductor, armor layer and certain material under special conditions, all material of cable are combustion-retardant, highly combustion-retardant, and fire-proof material.
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Finished cable conductor-resistance, insulation resistance, voltage test, current-carrying capacity, DC voltage test after laying and installing and partial discharge, etc, are all similar to various corresponding kinds of common cable kinds.
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Cable structure and size:
a.
Approx. overall diameter of fire-proof cable is about 1.5-3mm more than corresponding common cable according to different kinds.
b.
Reference weight of fire-proof cable is about 10-7% more than corresponding common cable according to different kinds.
c.
Conductor structure and others are equal to corresponding common cable.
