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聚氯乙烯絕緣電力電纜

產(chǎn)品標準
Standard
本產(chǎn)品按GB12706《額定電壓35KV及以下銅芯、鋁芯塑料絕緣電力電纜》標準生產(chǎn)，同時還可根據(jù)用戶需要按國際電工委員會推薦標準IEC、英國標準、德國標準及美國標準生產(chǎn)。
The product is manufactured according to the standard of GB12706 or IEC , BS , DIN and ICEA upon request
適合范圍
Applications
本產(chǎn)品適用于額定電壓35KV及以下配電網(wǎng)或工業(yè)裝置中固定敷設(shè)之用。
The product is suitable for use in power distribution networks or fixed installations for industrial equipments with rated voltage up to and including 35KV.
使用特性
Operating characteristics
1、 ● 額定電壓3.6/6KV~26/35KV交聯(lián)聚乙烯絕緣電力電纜
XLPE Insulated Electrical Cable for rated power frequency voltage Uo/U:3.6/6KV~26/35KV.
● 電纜導(dǎo)體的允許長期最高工作溫度為90℃。
Max.permissible continuous operating temperature of conductor:90℃
● 短路時（最長持續(xù)時間不超過5s）電纜導(dǎo)體的最高溫度不超過250℃。
Max.short-circuit temperature of conductor shall not exceed 250℃.(5s Max. Duration)
● 敷設(shè)電纜時環(huán)境溫度應(yīng)不低于0℃。
The bending radius of single-core cable shall not less than 20 times of the cable diameter
The bending radius of three-cores cable shall not less than 15 times of the cable diameter
2、 ● 額定電壓0.6/1kv交聯(lián)聚乙烯絕緣電力電纜
XLPE Insulated Electrical Cable for rated power frequency voltage Uo/U : 0.6/1KV
● 電纜導(dǎo)體的允許長期最高工作溫度為90℃。
Max.permissible continuous operating temperature of conductor : 90℃
● 短路時（最長持續(xù)時間不超過5s）電纜導(dǎo)體的最高溫度不超過250 ℃
Max.short-circuit temperature of the conductor shall not exceed 250 ℃
● 敷設(shè)電纜時環(huán)境溫度應(yīng)不低于0 ℃
The ambient temperature under installation shall not below 0 ℃
● 電纜彎曲半徑不小于電纜外徑15倍
The bending radius of a cable shall not less than 15 times of the cable diameter .
3、 ● 額定電壓0.6/1KV聚氯乙烯絕緣電力電纜。
PVC Insulated Electrical Cable for rated power frequency voltage Uo/U : 0.6/1KV
● 電纜導(dǎo)體的允許長期最高工作溫度為70 ℃
Max.permissible continuous operating temperature of conductor : 70 ℃
● 短路時（最長持續(xù)時間不超過5s）電纜導(dǎo)體最高溫度不超過：160℃
Max.short-circuit temperature of the conductor shall not exceed :160℃
● 敷設(shè)電纜時環(huán)境溫度應(yīng)不低于0 ℃
The ambient temperature under installation shall not below 0 ℃
● 電纜彎曲半徑不小于電纜外徑10倍
The bending radius of a cable shall not be less than 10 times of the cable diameter.
電纜額定電壓的選擇
Voltage designation
● 電纜的額定電壓應(yīng)適合于電纜使用系統(tǒng)的運行狀況，用Uo/U（Um）kv表示。
Uo—電纜設(shè)計用的導(dǎo)體與屏蔽或金屬套之間的額定工頻電壓；
U—電纜設(shè)計用的導(dǎo)體之間的額定工頻電壓；
Um—設(shè)備可承受的“最高系統(tǒng)電壓”的最大值。
The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used , and is expressed in the form Uo/U（Um）kv .
Where:
Uo—The rated power-frequency voltage between conductor and screen or metallic-sheath , for which the cable designed;
U — The rated power –frequency voltage between conductors , for which the cable designed ;
Um—The maximum value of the “highest system voltage “ for which the equipment may be operated


注：第一類——用于單相接地故障時間每一次一般不大于1min, 亦可用于最長不超過8h , 第年累計不超過125h 的系統(tǒng)。
第二類一一用于接地故障時間更長的系統(tǒng)及對電纜絕緣性能要求較高的場合。
The first class cable-suitable for one single-phase earth-fault time does not exceed 1 min each time and Max.
Time not exceed 8 hours , and not exceed 125 hours in all in one year.
The second class cable suitable for more the earth-fault time and more better insulation performance