執行標準
本產品按照GB/T 12706.1-2008設計制造。
用途
本產品適用于交流額定電壓0.6/1kV的線路中，供輸、配電能用途。
阻燃電力電纜適用于要求阻燃的場合。耐火電力電纜適用于高層建筑、大型商場等人口密集地區。
使用特性
①電纜導體長期允許工作溫度不超過70℃,短路時(最長持續時間不超過5秒)，電纜導體的最高溫度不超過160℃。
②敷設電纜時的環境溫度應不低于0℃，低于0℃時應先預熱。
③多芯鎧裝電纜的最小彎曲半徑不小于電纜外徑的12倍，無鎧裝電纜應不小于電纜外徑的15倍。
④導體直流電阻應符合GB/T 3956-2008的規定。
⑤工頻耐電壓試驗: 2.5U。+2kV/5分鐘不擊穿。
⑥阻燃特性:電纜阻燃、耐火特性符合GB/T 19666-2005規定。
Executive Standard
The products is manufactured based on the GB/T standard 12706. 1-2008.
Application
The products are used to transmit and distribute power on the A.C. power
line, rated voltage 0.6/1kV. The flame retardant power cable is used for the
application that require flame retardant performance. Fire resistance power
cable is used for those applications in populated areas which demand on
fire resisting performance, such as high-rise building or big shopping mall.
Using Features
①The maximum long-term operating temperature of conductor is 70℃.
When short circuit (the lasting time should not more than 5 seconds), the maximum temperature of the conductor is 160℃.
②The minimum ambient temperature in laying is 0℃. It should be preheated if the ambient temperature in laying is below 0℃.
③The permitted bending radius of the armored cable should no less than 12 times of the overall diameter of the cable or at least 15 times for those cable without armor.
④D.C. resistance of conductor should comply with the stipulations of GB/T standard 3956-2008.
⑤Flame retardant or fire resistant characteristics; Flame-retardant and fire resistance cable are manufactured based on the GB/T standard 19666-2005.
電纜敷設
1.敷設時電纜溫度不低于0℃，環境溫度低于0℃時，應對電纜進行預熱。
2.敷設的彎曲半徑:
(1)單芯電纜無鎧裝不小于電纜外徑的20倍，有鎧裝的不小于電纜外徑的15倍，
(2)多芯電纜無鎧裝不小于電纜外徑的15倍，有鎧裝的不小于電纜外徑的12倍。
3.電纜敷設后，應經受直流耐壓試驗，時間15分鐘，試驗電壓4U。。
Installation
1.The minimum ambient temperature in installation is 0C. It should be preheated if the ambient temperature in installation is below 0C.
2.The permitted bending radius in installation:
(1)The minimum bending radius of unarmored single-core cable should not be less than 20 times of cable outer diameter, the minimum bending radius of armored single-core cable should not be less than 15 times of cable outer diameter.
(2)The minimum bending radius of multiple-core unarmored cable should not be less than 15 times of cable outer diameter, the minimum bending radius of armored multiple-core cable should not be less than 12 times of cable outer diameter.
3. After installation, the cable should be tested for 1 5 minutes with stand voltage4U。.
在空氣中敷設
1.單芯電纜平行敷設時中心距離:185mm2及以下為電纜直徑的2倍;
240mm2及以上為90mm。
2.環境溫度: 40℃。
3.導電線芯最高允許溫度: 70℃。
4.不同環境溫度下載流量的校正系數:
Install in Air
1.As the single core cable laying in parallel, the distance between the cables' center is 2 times for cables which the cross sectional area of conductor≤185mm2, and 90mm for cable which the cross sectional area of conductor≥240mm7.
2.Ambient temperature: 40℃.
3.Maximum temperature of conductor: 70℃.
4.Correction factors of current-carrying capacity for ambient temperature:
直埋敷設
1.單芯電纜不接觸敷設時，中心距離為電纜直徑的2倍。
2.環境溫度: 25℃。
3.導電線芯最高允許溫度: 70℃。
4.土壤熱阻系數: 1.0℃ m/W。
5.直埋深度: 0.7m。
6.不同環境溫度下載流量的校正系數:
Directly Buried Install into Ground
1.When the single core cables are installed separately, the distance between the cable' s center is 2 times of the cable diameter.
2.Ambient temperature: 25℃.
3.Maximum temperature of conductor: 70℃.
4.Soil thermal resistivity: 1.0℃ m/W.
5.Depth: 0.7m.
6.Correction factors of current-carrying capacity for ambient temperature:
