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Low-smoke and low-halogen power cable
低烟无卤

Low-smoke and low-halogen power cable

Enterprise standard Q/R-TW6004-2002, this standard adopts GB12666.6B-1990 equivalently.
低烟无卤
Introduction
Parameters
Parameters
Installation

1. Product standard

Enterprise standard Q/R-TW6004-2002, this standard adopts GB12666.6B-1990 equivalently.
 
2. Purpose
This product is suitable for places where AC rated voltage 0.6/1kV plastic insulated power cables, 450/750V plastic insulated control cables, 450/750V and below electrical equipment wires and cables are used, especially subways, large shopping malls, nuclear power plants, etc., and at the same time All kinds of transmission and distribution, control, alarm and fire protection lines that require high temperature, fire resistance, and flammability.
 
3. Use characteristics
3.1 Rated voltage: U0/U, according to different product series from 300/300V to 0.6/1kV
 
3.2 The maximum allowable long-term working temperature of the cable conductor is: 70℃, 90℃, 105℃
 
3.3 When short-circuit (the longest duration does not exceed 5s) the maximum allowable temperature of the cable conductor does not exceed: 160°C at 70°C; 250°C at 90°C
 
3.4 The ambient temperature during cable laying should not be lower than 0°C.
 
3.5 The bending radius of the cable shall comply with the regulations of the corresponding non-flame retardant product standards.
 
3.6 High flame retardant properties.
 
3.7 Oxygen-insulated high flame-retardant cables are used in flame-retardant places that require higher requirements to pass IEC332-3A
 
3.8 The current-carrying capacity of the cable measured under the upper environment is not lower than the current-carrying capacity value of the ordinary cable of the corresponding model and specification.

 

示意图

Description: 1-conductor 2-fire-resistant layer 3-insulation layer 4-flame retardant filler 5-flame retardant coating layer 6-oxygen barrier layer 7-flame retardant coating layer 8-outer sheath

We could not find any corresponding parameters, please add them to the properties table

Cable model and name

 

Model number

Rated voltage

Name

DL-YJV
DLYJV22

0.6/1 kV

XLPE insulated low-smoke and low-halogen (low-smoke and non-halogen) power cable

GZR-YJV
GZR-YJV22

XLPE insulated oxygen barrier flame retardant power cable

DL-KYJV
DL-KYJVP
DL-KYJV22
DL-KYJVP22

450/750V

XLPE insulated low-smoke and low-halogen (low-smoke and non-halogen) control cable

XLPE insulated and shielded low-smoke and low-halogen (low-smoke and non-halogen) control cable

GZR-KYJV
GZR-KYJVP
GZR-KYJV22
GZR-KYJVP22

450/750V

XLPE insulated oxygen barrier flame retardant control cable

XLPE insulated shielded oxygen barrier flame-retardant control cable

 

Note:
1. The models listed in the table are representative of each series.
2. The conductor resistance, insulation resistance, withstand voltage test, current carrying capacity, DC withstand voltage test after laying, etc. of the finished cable refer to the corresponding ordinary cables.

电缆运行条件

1、在空气中敷设

1.1单芯电缆平行敷设时中心距离:185mm2及以下为电缆直径的2倍,240mm2及以上为90mm.。
1.2 周围环境空气温度:40℃
1.3导体的长期最高工作温度:70℃

2、直埋敷设

2.1单芯电缆不接触敷设时,电缆中心距离为电缆直径的2倍。
2.2土壤温度:25℃
2.3导体的长期最高工作温度:70℃ ;土壤温度系数:1.0℃.m/w
2.4直埋深度:0.7m

电缆安装使用

1、电缆的选择

1.1电缆的额定电压U0/U(Um)示为:UO是电缆设计用的导体对地或金属屏蔽之间的额定工频电压,U是电缆设计用的导体间的额定工频电压,Um是设备可承受的最高系统电压的最大值。
1.2根据电缆的敷设环境及负荷的不同,正确设计选择电缆的型号规格。非铠装型适用于架空、室内、隧道、电缆沟等场合,不能承受机械外力作用;铠装型同非铠装适用的条件外可直埋于地下,能承受一定的机械外力作用。单芯电缆不允许敷设在产生磁性管道中。易燃易暴、化学腐蚀性及高温、低温等场合应选择特殊型号的电缆。

2、储存和运输

2.1电缆在储存中,应规范包装避免长期露天阳光暴晒,两端头可靠密封,不允许长期存放于潮湿的环境中且电缆盘不能平放。运输时应考虑盘高并有效固定,吊装时不允许几盘同时吊装,严禁从高处推下。

3、敷设安装

3.1电缆敷设应采用专用工具,如放线架、导辊等,敷设过程中防止机械损伤,远离热源。
3.2 电缆穿管敷设时,管道内径不小于电缆外径的1.5倍,多根电缆穿管时禁止电缆拧绞挤压,管道有足够的容量,要求电缆的总面积不超过管内总面积的40%.
3.3电缆敷设最低温度不低于0℃,弯曲半径不小于20倍。
3.4当采用牵引导体夹头方式敷设时,允许最大牵引力为P=OA(N),A导体截面. O为50N/mm2(铜)和30N/mm2(铝)。

4、试验

安装结束后电缆不带负荷下进行绝缘电阻测试,必要时可进行交流工频耐压试验,历时1min.

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