Power Cable :

Fire resistant cable

fire resistant cable is suitable for high-rise buildings, entertainment places and many high-quality and highly safe building projects. It is used for power supply lines in fire elevator, fire pump, fire alarm, smoke exhaust system, emergency lighting, fire hazard area, high-temperature occasions and facilities requiring special safety in fire protection system 
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Introduction Specification

Application scope:

fire resistant cable is suitable for high-rise buildings, entertainment places and many high-quality and highly safe building projects. It is used for power supply lines in fire elevator, fire pump, fire alarm, smoke exhaust system, emergency lighting, fire hazard area, high-temperature occasions and facilities requiring special safety in fire protection system 

Product executive standard:

fire resistant power cable products shall comply with GB / T 12706-2020 and GB / T 19666-2019; Fire resistant control cables shall comply with GB / T 9330-2020 and GB / T 19666-2019 

Product model and name

Type Name

N-VV

 Rated voltage 0.6/1kv copper core PVC insulated PVC sheathed fire-resistant power cable

N-YJV

 Rated voltage 0.6/1kv copper core XLPE insulated PVC sheathed fire-resistant power cable

WDZN-YJY

 Rated voltage 0.6/1kv copper core cross-linked polyethylene insulated low smoke halogen-free polyethylene sheathed fire-resistant power cable

N-VV22

 Copper core PVC insulated PVC sheathed steel tape armored fire-resistant power cable with rated voltage of 0.6/1kv

N-YJV22

 Copper core XLPE insulated PVC sheathed steel tape armored fire-resistant power cable with rated voltage of 0.6/1kv

WDZN-YJY23

 Rated voltage 0.6/1kv copper core XLPE insulated low smoke halogen-free alkene sheathed steel tape armored fire-resistant power cable

N-KVV

 Rated voltage 450 / 750V copper core PVC insulated PVC sheathed fire-resistant control cable

N-KVVP

 Rated voltage 450 / 750V copper core PVC insulated PVC sheathed copper wire braided shielded fire-resistant control cable

N-KVVP2

 Rated voltage 450 / 750V copper core PVC insulated PVC sheathed copper tape wrapped shielded fire-resistant control cable

N-KYJV

 Rated voltage 450 / 750V copper core cross-linked ethylene insulated PVC sheathed fire-resistant control cable

N-KYJVP

 Rated voltage 450 / 750V copper core XLPE insulated PVC sheathed copper wire braided shielded fire-resistant control cable

N-KYJVP2

 Rated voltage 450 / 750V copper core XLPE insulated PVC sheathed copper tape wrapped shielded fire-resistant control cable

WDZN-KYJY

 Rated voltage 450 / 750V copper core cross-linked ethylene insulated low smoke halogen-free flame retardant polyolefin sheathed fire-resistant control cable

WDZN-KYJYP

 Rated voltage 450 / 750V copper core crosslinked ethylene insulated low smoke halogen-free flame retardant polyolefin sheathed copper wire braided shielded fire-resistant control cable

WDZN-KYJY23

 Rated voltage 450 / 750V copper core XLPE insulated low smoke halogen-free resistance alkene sheathed steel tape armored fire-resistant control cable

 

Main technical parameters of the product

C rated voltage: U0 / u 0.6/1kv

Maximum long-term working temperature: PVC insulation 70 ℃, XLPE insulation  90 ℃  

Minimum ambient temperature: flame retardant PVC sheath fixed laying - 40 ℃, non fixed laying - 15 ℃        

Fire resistance characteristics：

Comply with iec331 Flame temperature 750 ℃, combustion time 3h, cooling time 12h, additional rated voltage, additional 3A current
Comply with GB/19666-2019 Flame temperature 750-800 ℃, combustion time 90min, additional rated voltage 3A current

 

Recommended allowable bending radius for laying: the non armored cable shall not be less than 20 times of the outer diameter of the cableArmored cable shall not be less than 12 times of cable outer diameter

Type Core Nominal section
mm2		 50Hz
Withstand voltage test		 Fire resistance characteristics

N-YJVN-VV WDZN-YJY

1

1.5～300

3.5KV/5min

 Pass GB/T19666-2019
Line integrity test

  1. YJV62N-VV62

WDZN-YJY63

10～300

N-YJVN-VV WDZN-YJY

2

1.5～185

N-YJV22N-VV22

WDZN-YJY23

4～185

N-YJVN-VV WDZN-YJY

3、4、5

1.5～300

N-YJV22N-VV22

WDZN-YJY23

2.5～300

N-YJVN-VV WDZN-YJY

3+1、3+2、4+1

2.5～300

N-YJV22N-VV22

WDZN-YJY23

4～300

N-KVV N-KYJV

N-KVVP N-KYJVP

N-KVV22 N-KYJV22

WDZN-KYJYP

2-61

0.5-10

3.0KV/5min

 Pass GB/T19666-2019
Line integrity test

 

The outer diameter of fire-resistant cable with a section of 25mm2 or less is 15% larger than that of ordinary similar products, and the section of 25mm2 or more is 25% larger than that of ordinary similar products

The electrical and physical mechanical properties of the product are the same as those of ordinary products

 The current carrying capacity of fire-resistant cables is the same as that of similar types of cables

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