Wholesale of fire-resistant cables

NegotiableUpdate on 04/13

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Fire resistant cable refers to a cable that can maintain safe operation for a certain period of time under the condition of flame combustion. The national standard GB12666.6 (equivalent to IEC331) in our country divides the fire resistance test into two levels: A and B. The flame temperature is 950~1000 ℃, and the continuous fire supply time is 90 minutes. The B-class flame temperature is 750~800 ℃, and the continuous fire supply time is 90 minutes. During the entire test period, the sample should withstand the rated voltage value specified by the product. Fire resistant cables are widely used in high-rise buildings, underground railways, underground streets, large power stations, and important industrial and mining enterprises related to fire safety and firefighting, such as power supply lines and control lines for emergency facilities such as fire equipment and emergency guide lights.

Product Details

1、 Product Usage

This product is suitable for electrical equipment with a rated voltage of 10Kv and below, especially for high-temperature, flammable, fire-resistant transmission and distribution, control, alarm, and fire protection systems.

2、 Product standards

Enterprise standard, this standard is equivalent to GB/T12666.6B-2016.

3、 Working conditions

The long-term allowable working temperature of conductors can be divided into different types: 70 degrees Celsius, 90 degrees Celsius, and 105 degrees Celsius.
The allowable temperature of the conductor during a short circuit (5s) is not more than 160 degrees Celsius and 105 degrees Celsius.
The ambient temperature during cable laying should not be lower than 0 degrees Celsius.
The minimum allowable bending radius for cables is 6 times, 10 times, 12 times, and 15 times the outer diameter of the cable according to different products.

4、 Model name

Model Rated voltage Name Main purpose

NH-VV 0.6/1KV polyvinyl chloride fiber mica and fluoroplastic composite for petroleum, chemical, and metallurgical industries

NH-YLV22 insulated fire-resistant power cable power plant, transmission substation

NH-YJY 8.7/10KV and below cross-linked polyethylene or silane cross-linked polyethylene fiber for high-rise buildings, subways, and transportation

NG-YJLV22 mica composite insulated fire-resistant power cable for communication stations, nuclear engineering, aviation

NH-KVV 450/750V PVC fiber mica composite insulation fire-resistant tunnel, high-tech research, fire department

NH-KVV22 control cable system, etc.

NH-KVVR PVC fiber mica composite insulated fire-resistant control (soft) cable

NH-KVVP polyvinyl chloride fiber mica composite insulation shielding

NH-KVVRP22 fire-resistant control flexible cable

NH-BV 450/750V PVC fiber mica composite insulated fire-resistant wire for petroleum, chemical, metallurgical, high-rise building

NH-BVR 450/750V PVC fiber mica composite insulation fire-resistant flexible wire research and other power lighting devices and electrical,

The NH-BVV 300/500V polyvinyl chloride fiber mica composite insulated fire-resistant cable instrument is required for fire-resistant applications.

5、 Main technical performance

The cable can withstand fire resistance tests and meet the requirements of GB12666.6B class. It can withstand a flame temperature of 750-800 degrees Celsius, apply 1000V voltage, burn for 90 minutes, and connect 3A fuses continuously.
All materials of the cable, except for the conductor and armor, are flame-retardant, highly flame-retardant, and fire-resistant.
Cable combustibility

1) Under combustion conditions with a flame temperature of 750-800 degrees Celsius, the cable can operate normally for no less than 90 minutes.

2) The current carrying capacity of the cable measured in the experimental environment shall not be lower than the current carrying capacity value of the corresponding model and specification under normal cable working conditions.