本安计算机用屏蔽电缆(或称本安DCS系统用电缆）Shielding Cable for Intrinsic Safe Computer Application（Shielding Cable for Intrinsic Safe DCS System Application）

一、适用范围

本产品适用于石油、化工、电力、煤气工程、矿山等存在爆炸危险的场合以及其它防爆安全要求较高的场合，传输自动控制信号。该电缆具有低电容、低电感集散型仪表信号电缆，简称本安型DCS电缆，具有优异的屏蔽性能和抗干扰性能因此防爆安全性能明显高于一般DCS电缆和计算机控制电缆。

Scope of application

It is used to transmit automatic control signal in the environmentnot only with exploding danger such as petroleum, chemical plant.power, gas project and mine but also with high demａnd on explosionproof performance.lt is decentralized type instrument signacable with the feature of low capacitance &low inductance& good shielding performance and interference proof performance.which is also named as Intrinsic safety type cable for DCS system.So, its performance of explosion-proof & safety is apparentlyhigher compared with common computer control cable and cablefor DSC.

二、执行标准

企业标准

Executive standard

Enterprise standard

三、使用特性

1、交流额定电压Uo/U:300/500V。

2、电缆导体长期允许**工作温度: 聚乙烯绝缘为70℃:交联聚乙烯绝缘为90℃:无卤低烟阻燃聚烯烃绝缘为70℃

3、**环境温度:固定敷设-40℃;非固定敷设-15℃。安装敷设时环境温度:不低于0℃。

4、电缆允许弯曲半径:非铠装、编织屏蔽电缆不小于电缆外径的6倍:铜带屏蔽、铠装电缆不小于电缆外径的12倍。

Performance for Usage

1: AC rated voltageUo/U: 300/500V.

2: Max temperature of cable conductor for long term working is 70℃for cable with PE insulation,90℃ for cable with XLPE insulationａnd 70℃for cable with free halogen, low smoke,flame retardant,polyolefin insulation.

3: Min. environment temperature is -40℃ for fixed laying and -15℃for non-fixed laying. Environment tem- perature for installing isno less than 0℃.

4: Bending radius allowed by cable is no less than 6 times that ofcable OD for inarmored braided shield-ing cable and 12 timesthat of cable OD for copper tape shieldin g armored cable.

四、基本型号及名称Basic Type and Description

五、型号名称及含义 Type，Description and Definition

举例eg:

绝缘或护套材料:Y一聚乙烯或无卤低烟阻燃聚烯烃挤包绝缘、护套;

YJ一交联聚乙烯挤包绝缘

阻燃性能分:ZRA一A类阻燃(A类阻燃性能**)

ZRB一B类燃

ZRC-C类阻燃

本安阻燃型电缆在基本型号前分别加“ZRA-”“ZRB-”、“ZRC-”表示即可。

nsulation or sheath material:

Y: PE insulation and sheath OR free halogen,lowsmoke, flame retardant, polyolefin extruded insulation& sheath

YJ: XLPE extruded insulation

Flame retardant performance category:

ZRA: category A (the best)

ZRB: category B

ZRC: category C

Prefix“ZRA-”、“ZRB-”、“ZRC-”should beadded to the original type for cable with intrinsicsafety type cable

铠装结构:22一钢带铠装聚氯乙烯外护套23一钢带铠装聚乙烯外护套

32一圆形镀锌低碳钢丝铠装聚氯乙烯外护套33一圆形镀锌低碳钢丝铠装聚乙烯外护套

屏蔽材料:P一铜线编织

P1一镀锡铜线编织

P2一铜塑复合带绕包

P3一铝塑复合带绕包

导体种类:A一单根导体(型号中省略)

B一七根绞合导体(在规格后面加“B”表示)

R一多根绞合导体

Armor structure:

22 means steel tape armor, PVC outer sheath

23 means steel tape armor, PE outer sheath

32 means round galvanized low carbon steel wirewrapping, armor, PVC outer sheath

33 means round galvanized low carbon steel wirewrapping, armor, PE outer sheath

Shielding material:

P means copper wire braiding

P1 means tinned copper wire braiding

P2 means copper-plastic compound tape wrapping

P3 means aluminum- plastic compound tape wrapping

Conductor category:

A means single conductor (omitted in type)

B means 7 stranded conductor(“B”shall be addedafter specification)

C means multi-stranded conductor

六、规格范围

对数:1~24对。

每对芯数:二芯(称二线组)或三芯(称三线组)。

导体截面:0.5mm²、0.75mm²、1.0mm²、1.5mm²、2.5mm²

Specification Scope

Pair No.: 1~24 pairs

Core No.per pair: 2 cores(equal to 2 wire group )or3 cores(equal to 3 wire group)

Cross section area of conductor: 0.5mm² 、0.75mm²、1.0mm²、1.5mm²、2.5mm²

七、其他常见型号与本公司型号对照 Comparison between other common type and type of our

company

八、主要技术参数Main Technical Parameter

1、20℃导体直流电阻

DC resistance of conductor at 20℃

3、电缆应经受工频交流电压试验:1500V/1min绝缘不发生击穿,试验温度为环境温度。

4、工作电容(1KHz): 线芯与线S90PF/m。

5、分布电感(1KHz) s0.6H/m。

6、电磁干扰感应电压(千扰磁场400A/m)5mV

7、静电感应电压(静电电压20kV) <1V。

8、辐射场透入强度(干扰场强120dBuV,干扰场频率200MHZ)≤66dBuV

3.Cable shall endure A.C. voltage test of1500V under power frequencyfor 1min without puncture of insulation. And testing temperatureis environment temperature.

4.Working capacitance (1KHz): core to core s90PF/m

5.Distributing inductance (1KHz) S0.6 H/m

6.Inductive voltage of electromagnetic interference(inte rferencemagnetic field): ≤5mV

7.Inductive voltage of electrostatic(static voltage) <1V

8.Penetration stress of radiant field(stress of interfer- ence fieldis 120dB uV; frequency of interference field is 200MHZ )66dByV