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(shí),，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(shí)運(yùn)行的條件,，接地故障時(shí)間應(yīng)不超過(guò)1h, 但在任何情況下,，zui長(zhǎng)不超過(guò)8h每年接地故障總持續(xù)時(shí)間不超過(guò)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 BYJV22礦用防爆阻燃電纜10KV鎧裝電力電纜 YJV3*240+1*120 YJV交聯(lián)電纜0.6/1KV |
型號(hào) Type | 名稱 Designation | 適用范圍 Application | 阻燃電力電纜ZR-YJV 3*25價(jià)格ZR-YJV電纜YJV | 銅芯交聯(lián)聚乙烯絕緣氯乙烯護(hù)套電力電纜 Copper conductor,XLPE insulated and PVC sheathed power cable | 室內(nèi)、隧道及電纜溝等場(chǎng)所,，不能承受機(jī)械外力。單芯電纜不允許敷設(shè)在磁性管道中,。 For laying indoors ,、 intunnel or cable trench,unable to bear external mechan-icalforces.Single-core cable in magnetic duct is not permissible | YJLY | 鋁芯交聯(lián)聚乙烯絕緣乙烯護(hù)套電力電纜 Aluminium conductor, XLPE insulated and PVC sheathed power cable | YJY | 銅芯交聯(lián)聚乙烯絕緣氯乙烯護(hù)套電力電纜 Copper conductor ,XLPE insulated and PEsheathed power cable | YJLY | 鋁芯交聯(lián)聚乙烯絕緣氯乙烯護(hù)套電力電纜 Alumimium conductor ,XLPE insulated and PEsheathed power cable | YJV22 | 銅芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜 Copper conductor ,XLPE insulated, steel tape armoured and PVC sheathed power cable | 室內(nèi)、隧道,、電纜溝內(nèi),，或埋地敷設(shè)等，能承受一定機(jī)械外力,，但不能承受大的拉力,。 For laying indoors 、 in tunnel, cable trench, or direct in ground,able to bear external mechanicalforces, but unable to bear large pulling force ,。 | YJLV22 | 鋁芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜 Aluminium conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable | YJV23 | 銅芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜 Copper conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable | YJLV23 | 鋁芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜 Aluminium conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable | YJV32 | 銅芯交聯(lián)聚乙烯絕緣細(xì)鋼絲鎧裝聚氯乙烯護(hù)套電力電纜 Copper conductor,XLPE insulated,steel wire armoured and PVC sheathed power cable | 室內(nèi),、隧道、電纜溝,、豎井或埋地敷設(shè)等,，能承受機(jī)械外力和一定的拉力。 For laying indoors ,、 in tunnel, cable french, well or direct in ground,able to bear external mechanical forces, and certain force ,。 | YJLV32 | 鋁芯交聯(lián)聚乙烯絕緣細(xì)鋼絲鎧裝聚氯乙烯護(hù)套電力電纜 Aluminium conductor ,XLPE insulated, steel wire armoured and PVC sheathed power cable | YJV33 | 銅芯交聯(lián)聚乙烯絕緣細(xì)鋼絲鎧裝聚氯乙烯護(hù)套電力電纜 Copper conductor ,XLPE insulated ,steel wire armoured and PVC sheathed power cable | YJLV33 | 鋁芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜 Aluminium conductor ,XLPE insulated ,steel wire armoured and PVC sheathed power cable |
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