额定电压0.6/1kV屏蔽电力电缆

Plastic insulated copper tape screen power cables

 with rated voltages 0.6/1kV

一、产品用途Products application

本产品适用于额定电压0.6/1kV及以下输配电线路，具有抗雷击、抗电磁干扰和均衡电位等功能，广泛适用于高层建筑、导弹发射场和精密电子装置集中的场合。

This product is applicable to being fixedly laid on the transmission and distribution line of rated voltage up to 0.6/1.0Kv with the use for power transmission. This product can be used in high-rise building, guided missile lanching site, the place where there are plenty of precise electronic equipments.

二、产品主要技术特点Technique features

本产品具有优越的电气性能、抗雷击、抗电磁干扰和均衡电位耐热性能，易于安装和维护，敷设时不受落差限制。

The product has good performance on electrical characteristic, light-stroke protection, resistance to electromangetic interference, equilibrium voltage, heat resistant.The product characteristic is easy installation and maintaince, especially there is no limit of head drop during the cable laying.

三、产品执行标准Standards

GB/T 12706.1-2002  额定电压1 kV(Um=1.2 kV)到35 kV(Um=40.5 kV)挤包绝缘电力电缆及附件

第1部分：额定电压 1kV(Um=1.2 kV)和3 kV(Um=3.6 kV)电缆

Power cables with extruded insulation and their for rated voltages from 1kV(Um=1.2kV) up to 35kV(Um=40.5kV)  Part 1:Cables for rated voltages of 1kV(Um=1.2kV) and 3 kV（Um=3.6 kV）

IEC 60502-1:1997 额定电压1 kV(Um=1.2 kV)到30 kV(Um=36 kV)挤包绝缘电力电缆及附件

第2部分：额定电压 1 kV(Um=1.2kV)和3 kV(Um=3.6kV)电缆

Power cables with extruded insulation and their for rated voltages from 1kV(Um=1.2kV) up to 35kV(Um=40.5kV)  Part 1:Cables for rated voltages of 1kV(Um=1.2kV) and 3 kV（Um=3.6 kV）

Q/12BJ4973-2002 额定电压0.6/1kV 五芯塑料绝缘电力电缆

                 Q/12BJ4973-2002 Five cores extruded plastic insulated power cables with rated voltages 0.6/1Kv

Q/12BJ 5142-2003  额定电压0.6/1kV塑料绝缘金属屏蔽电力电缆

Q/12BJ 5142-2003  Plastic insulated copper tape screen power cables with rated voltages 0.6/1kV

GB/T 3956-1997   电缆的导体

GB/T 3956-1997   Conductor of Cables

四、使用特性Operating characteristics

1、  额定电压Rated Voltage

电缆额定电压U₀/U(U_m)为：0.6/1(1.2)kV  

Rated Voltage of cable U₀/U(U_m)：：0.6/1(1.2)kV

其中：Notes

U₀：电缆设计用的导体对地或金属屏蔽之间的额定工频电压；

Rated A.C. Voltage between conductor and ground/metal screen;

U：电缆设计用的导体间的额定工频电压；

Rated A.C. Voltage between conductors

U_m：设备可承受的“最高系统电压“的最大值。

The maximum system voltage which the equipments can be beared

电缆的额定电压应适合电缆所在系统的运行条件。为了便于选择电缆，将系统划分为下列三类：

The rated voltage of cable shall be applicable to system operation condition where the cable lain in. According to cable selecting, the system will be described as 3 types as follow:

——A类：任一相导体与地或接地导体接触时，能在1min内与系统隔离。

When any phase of cable conductor is contacting with earth conductor, the cable will be isolated     with the system.

——B类：可在单相接地故障时作短时运行，但任何情况下不宜超过8h，每年接地故障总持续时间不宜超过125h。

The system is allowed to run for 8 hours, when the single-phase earth fault is existing. And the total earth-fault time of 1 year won't be above 125 hours.

——C类：包括不属于A类和B类的系统。

They are including all systems besides A and B.

注：在系统接地故障不能立即自动解除时，故障期间加在电缆绝缘上过高的电场强度，会在一定程度上缩短电缆寿命。如系统预期会经常地运行在持久的接地故障状态下，该系统应划为C类。

When the system earth fault can't be removed automatically, the life of cable will be shortened in some degree because of the over-high electric stess beared by cable insulation.

用于三项系统的电缆，U₀的推荐值见表1。

The recommended figure of U₀ see the book 1, which are suitalbe for the three systems.

表1  额定电压U₀推荐值

Table1 The recommended figure of U₀

2、  导体额定工作温度The rated temperature of conductor

The maximum assigned temperature of the cable conductor is ： XLPE insulated is 90℃, PVC insulated is70℃.

短路时（最长持续时间不超过5s）电缆导体的最高温度不超过: 交联聚乙烯绝缘250℃, 聚氯乙烯绝缘160℃。

During having a short circuit, lasting less than 5 seconds, the maximum temperature of the cable conductor shall not be above: XLPE insulated is 250℃, PVC insulated is160℃

3、  敷设环境温度Ambient temperature for laying

电缆敷设时的环境温度应不低于0℃，否则需要事先预热。

During the cable laying, the ambient temperature must be above 0℃，if not the cable need be preheated.

4、  安装弯曲半径The bend radius

安装时电缆最小弯曲半径见表2.

The minimum bending diameter must be above the following standard:

表2  电缆安装时最小弯曲半径

Table2  The minimun bend radius of the cable

5、  敷设方式

电缆没有敷设落差限制。There is no limit of head drop during the cable laying.

电缆允许敷设在室内、室外、空气中和土壤中，允许局部有积水。

The cable may be laid in indoor, outdoor, air and soil. The cable may be immersed in water locally.

电缆敷设方式可以是隧道、管道、电缆沟、桥架、排管，铠装电缆允许直埋地下，钢丝铠装电缆允许垂直敷设。

The cable may be laid in tunnel, pipe, trench, conduit and on cable bridge. The amoured cable can be laid undergroud, and the wire- amoured cable can be laid vertically.

单芯电缆不允许敷设在磁性金属管内。

The single core cable mustn't be laid in the magnetic metal pipes.

电缆敷设环境应有良好的散热条件。

The enviroment of cable laying shall be in good heat dissipation condition.

6、  电缆敷设时导体最大允许牵引力和电缆最大允许侧压力

The maxium allowed haul-off force and lateral pressure of cable

导体最大允许牵引力计算方法：he calculating method of the maxium allowed haul-off force :

——铜导体：F=70×S（N/mm²）。

——铝导体：F=40×S（N/mm²）。

侧压力计算方法：the calculating method of the maxium allowed lateral pressure：

P=F÷R（N/m），最大允许侧压力不超过3000N/m。the maxium allowed lateral pressure≤3000N/m

式中：F－牵引力，N；lateral pressure

S－导体截面，mm²；conductor section

P－侧压力，N/m；lateral pressure

R－电缆弯曲半径，m。Bend radius

7、  电缆运输和保管要求the requirements on transportation and storage:

电缆盘不允许平放。The cable reels shall not be delivered and stored in flat state

运输中严禁从高处扔下装有电缆的电缆盘，严禁机械损伤电缆。It is strictly forbidden to push the cable reel from the high level in order to prevent the cable from damages

电缆如果需要分段使用，电缆分段后必须用防水封帽将电缆头密封，防止进水。

If the cable should be used sectionally, the head of the cable must be sealed in order to prevent water intake.

五、产品表示方法Expressed method of product

1、代号Code

导体代号Conductor code

铜导体（省略）Copper conductor ( omitted )………………………………………………………………T

铝导体aluminium conductor…………………………………………………………………………………L

绝缘代号Insulation code

交联聚乙烯绝缘 cross-linking polyethylene(XLPE) insulated……………………………………………YJ

聚氯乙烯绝缘 polyvinyl chloride (PVC) insulated……………………………………………V

    护套代号^1）Sheath code

聚氯乙烯护套 polyvinyl chloride and sheath………………………………………………………………V

聚乙烯护套 polyethylene sheath……………………………………………………………………………Y

    铠装代号Amour code

双钢带铠装steel tape armoured ……………………………………………………………………………2

外护套代号Outer sheath code

聚氯乙烯外护套 polyvinyl chloride outer sheath …………………………………………………………2

聚乙烯外护套 polyethylene outer sheath …………………………………………………………………3

铜带屏蔽copper tape screen………………………………………………………………………………P2

注：Note

1）   包括挤包的内衬层和隔离套等。Including the extruding inner covering and separating tape.

2、产品表示方法Expressed method of product

产品用型号（型号中有数字代号的电缆外护层，数字前的文字代号表示内护套）、规格（额定电压、芯数、标称截面）和标准编号表示。

The product is described as type (figure code of cable outer sheath, the word code in front of the figure means inner sheath), specification(rated voltage, cores numbers, sectioal area ) and standards code.

3、产品型号组成The consistant of specifications

产品型号的组成和排列顺序如下：

The consistant of specification, as follow:

4、产品表示方法 Expressed method of product

示例：铜芯交联聚乙烯绝缘聚氯乙烯护套铜带屏蔽电力电缆，额定电压0.6/1kV，3+1芯，标称截面120mm²，中性线截面70mm²，表示为：

YJVP2-0.6/1    3*120+1*70      Q/12BJ 5142-2003

Example:

Copper conductor XLPE insulated, copper tape screen and PVC sheathed power cables, rated Voltages 0.6/1kV, 3+1 cores, Nominal cross area 120mm², see the following:

 YJVP2-0.6/1    3*120+1*70     Q/12BJ 5142-2003  

六、产品型号、规格Types and specifications of products

1、产品型号Type of product

产品常用型号见表3。

For the common product types , please see the table 3 

表3  产品型号

Table 3 Type of product

2、产品规格 Specification of product

For product rated voltage, conductor sectiona and the numbers of cores, please see the table 4.

表4  产品规格

Table 4   Specification of prouduct

七、产品结构Product structure

1、导体conductor

导体应是符合GB/3956 的第一种或第2种裸退火铜导体或镀金属层退火铜导体，或这两种之一的裸铝导体或铝合金导体；或者第5种裸铜导体或镀金属层退火铜导体。

The conductor shall meet the first one of the requirement of GB/3956 or the second one of that, that is bare anneal copper conductor, or bare aluminium conductor or aluminium alloy, or the fifth one of that, that is bare copper conductor or metal coated anneal copper conductor.

2、绝缘insutation

绝缘应紧密挤包在导体上，且应容易剥离而不损伤绝缘体、导体或镀层。

The insulation layer shall be extruded on the conductor, and it shall be easy to be stripped without damages on insulation, conductor and coating layer.

3、屏蔽Screen

金属屏蔽电缆屏蔽层应选用软铜带，单层重叠绕包。

The screen layer shall be flexible copper tape with single overwrapping type.

4、隔离套（有铠装电缆）Inner sheath（Armoured cables）

采用聚氯乙烯（PVC）或聚乙烯（PE）挤包在缆芯上。

The separated sheath is the extruding PVE or PE on the cable cores

5、  铠装Amour

多芯铠装电缆的铠装材料应选用镀锌钢带。

单芯铠装电缆的铠装应选用非磁性材料。根据用户要求可选用不锈钢带、铝带、铝合金带或铜带，如无要求一般应选用不锈钢带。

The amour of the multiple cable shall be zinc-plated steel tape, but the amour of the single cable uesed in AC circuit shall be non-magnetic metal-tape or metal-wire. The tappering mode of metal tape should adopt double layer open tappering, and the mode of metal wire shall mutiple concentric stranding.

注：大量事实证明，采用某种特殊结构铠装（如添加铜丝的隔磁结构）的单芯电缆用于交流回路时均出现电缆发热导致载流量大为下降的现象，所以不推荐采用。

Note: A large number of facts show that the single cable with the special structure amour in the AC circuit exists the heating phenomenon, thus causing the reduction of current capacity. The manufacturer don't suggest to adopt this kind cable.

6、  外护套outer sheath

采用ST₂型聚氯乙烯护套料或ST₇型聚乙烯（PE）护套料挤包在铠装、同心导体上。

The materials of outer sheath are extruding ST₂ PVCor ST₇ PV on amour, insulation or cable cores.

7、成品电缆的标志Cable marks

成品电缆的外护套表面印有厂名、型号、额定电压、芯数、标称截面和米数的连续标志。

The outer sheath of the cable shall have the following information printed at regular intervals throughtout the length of the cable: