YJV電纜 8.7/10KV高壓交聯(lián)電力電纜
6kV~35kV 中低壓銅芯及鋁芯交聯(lián)聚乙烯絕緣電力電纜（YJV電纜，YJV22電纜，YJLV電纜，YJLV22電纜）XLPE Insulated Power Cable |
| YJV電纜 8.7/10KV高壓交聯(lián)電力電纜 |
U kv | U m kv | U 0 * kv | A 和 B 類系統(tǒng) System categories A and B | C 類系統(tǒng) Systems categories C |
| 6 | 7.2 | 3.6 | 6 |
| 10 | 12 | 6 | 8.7 |
| 15 | 17.5 | 8.7 | 12 |
| 20 | 24 | 12 | 18 |
| 30 | 36 | 18 | － |
| 35 | 40.5 | 21 | 26 |
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YJV電纜8.7/10KV高壓交聯(lián)電力電纜
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A類系統(tǒng)──該類系統(tǒng)任何一相導(dǎo)體與地和接地導(dǎo)體接觸時，能在1min內(nèi)與系統(tǒng)分離
B類系統(tǒng)──該類系統(tǒng)僅包括單相接地故障短時運行的條件，接地故障時間應(yīng)不超過1h, 但在任何情況下，Z長不超過8h每年接地故障總持續(xù)時間不超過125h；
C類系統(tǒng)──不屬于A類、B類的系統(tǒng)。
System category A──This category comprises those systems in which any phase conductor that comes in contact with earth or an earth conductor. is disconnected from the system within 1 min.
System category B ──This category comprises those system which,under faultconditions,are operated,are operated for ashorttimewith one phase earthed.This period should not exceed 1 h..Fora longer period, not exceeding 8h on any occasion, can be tolerated.The total duration of earth faults in any year should not exceed 125h.
System categeory C──This category comprises all systems which do not fall into A and B
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