Name Type and Use Scope of Products

Name	Type	Class	Use Scope
Fire-resisting series	NH	ⅠA	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
		ⅠB
		ⅡA
		ⅡB
		ⅢA
		ⅢB
		ⅣA
		ⅣB

Technical Properties or Conditions 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. 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. 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. 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.