本安計算機用屏蔽電纜(或稱本安DCS系統用電纜）Shielding Cable for Intrinsic Safe Computer Application（Shielding Cable for Intrinsic Safe DCS System Application）
一、適用范圍
本產品適用于石油、化工、電力、煤氣工程、礦山等存在爆炸危險的場合以及其它防爆安全要求較高的場合，傳輸自動控制信號。該電纜具有低電容、低電感集散型儀表信號電纜，簡稱本安型DCS電纜，具有優異的屏蔽性能和抗干擾性能因此防爆安全性能明顯高于一般DCS電纜和計算機控制電纜。
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、執行標準
企業標準
Executive standard
Enterprise standard
三、使用特性
1、交流額定電壓Uo/U:300/500V。
2、電纜導體長期允許**工作溫度: 聚乙烯絕緣為70℃:交聯聚乙烯絕緣為90℃:無鹵低煙阻燃聚烯烴絕緣為70℃
3、**環境溫度:固定敷設-40℃;非固定敷設-15℃。安裝敷設時環境溫度:不低于0℃。
4、電纜允許彎曲半徑:非鎧裝、編織屏蔽電纜不小于電纜外徑的6倍:銅帶屏蔽、鎧裝電纜不小于電纜外徑的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、基本型號及名稱Basic Type and Description
五、型號名稱及含義 Type，Description and Definition
舉例eg:
絕緣或護套材料:Y一聚乙烯或無鹵低煙阻燃聚烯烴擠包絕緣、護套;
YJ一交聯聚乙烯擠包絕緣
阻燃性能分:ZRA一A類阻燃(A類阻燃性能**)
ZRB一B類燃
ZRC-C類阻燃
本安阻燃型電纜在基本型號前分別加“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
鎧裝結構:22一鋼帶鎧裝聚氯乙烯外護套23一鋼帶鎧裝聚乙烯外護套
32一圓形鍍鋅低碳鋼絲鎧裝聚氯乙烯外護套33一圓形鍍鋅低碳鋼絲鎧裝聚乙烯外護套
屏蔽材料:P一銅線編織
P1一鍍錫銅線編織
P2一銅塑復合帶繞包
P3一鋁塑復合帶繞包
導體種類:A一單根導體(型號中省略)
B一七根絞合導體(在規格后面加“B”表示)
R一多根絞合導體
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、規格范圍
對數:1~24對。
每對芯數:二芯(稱二線組)或三芯(稱三線組)。
導體截面: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、其他常見型號與本公司型號對照 Comparison between other common type and type of our
company
八、主要技術參數Main Technical Parameter
1、20℃導體直流電阻
DC resistance of conductor at 20℃
3、電纜應經受工頻交流電壓試驗:1500V/1min絕緣不發生擊穿,試驗溫度為環境溫度。
4、工作電容(1KHz): 線芯與線S90PF/m。
5、分布電感(1KHz) s0.6H/m。
6、電磁干擾感應電壓(千擾磁場400A/m)5mV
7、靜電感應電壓(靜電電壓20kV) <1V。
8、輻射場透入強度(干擾場強120dBuV,干擾場頻率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
