| 交聯(lián)聚乙烯絕緣電力電纜是采用化學(xué)方法或物理方法,使聚乙烯分子由線型分子結(jié)構(gòu)轉(zhuǎn)變?yōu)槿S網(wǎng)狀結(jié)構(gòu),由熱塑性的聚乙烯變成熱固性的交聯(lián)聚乙烯,從而提高了聚乙烯的耐老化性能,、機械性能和耐環(huán)境能力,，并保持了優(yōu)良的電氣性能。
交聯(lián)聚乙烯絕緣電力電纜導(dǎo)體的允許長期zui高溫為90攝氏度,，較低絕緣電纜,、聚氯乙烯絕緣電纜和聚乙烯絕緣電纜高,，且具有重量輕、結(jié)構(gòu)簡單,、使用方便,、耐化學(xué)腐蝕和敷設(shè)不受落差限制等優(yōu)點。
26/35KV電力電纜,，18/30KV交聯(lián)電纜,，12/20KVYJV電纜，8.7/15KVYJV22電纜線,，6/10KV鋁芯交聯(lián)電纜線,，3.6/6KVYJLV單芯電纜
中低壓交聯(lián)電纜產(chǎn)品標(biāo)準(zhǔn) Standard
本產(chǎn)品按GB12706《額定電壓35V及以下銅芯、鋁芯塑料絕緣電力電纜》標(biāo)準(zhǔn)生產(chǎn),，同時還可根據(jù)用戶需要按電工委員會推薦標(biāo)準(zhǔn)IEC,、英國標(biāo)準(zhǔn)、德國標(biāo)準(zhǔn)及美國標(biāo)準(zhǔn)生產(chǎn),。
The product is manufactured according to the standard of《GB12706 or IEC,、BS、DIN and ICEA upon request.
適用范圍 Applications
本產(chǎn)品適用于工頻額定電壓3.6/6kv～26/35kv輸配電線路作配送電能子用,。
The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kv～26/35kv.
使用特性 Operating characteristics
· 工頻額定電壓U0/U為3.6/6kv～26/35kv。
Rated power-frepuency voltage U0/U: 3.6/6kv～26/35kv.
· 電纜導(dǎo)體的zui高允許工作溫度：90℃,。
Max.admissible operating temperature of the conductor:90℃.
· 短路時（zui長時間不超過5s）電纜導(dǎo)體的zui高溫度不超過2500C,。
Max. short-circurt temperature of conductor shall not exceed 2500C.
（5s maximum duration）
· 電纜敷設(shè)時環(huán)境溫度應(yīng)不低于00C。
銅芯鎧裝高壓電纜-YJV22-3*50mm2價格 The ambient temperature under installation should not below 00C.
· 電纜彎曲半徑：三芯電纜不小于電纜外徑15倍,；單芯電纜不小于電纜外徑20倍,。
The bending radius of a single-core cable should not less than 20 times of the cable diameter.
The bending radius of a single-core cable should not less than 15 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)適合于電纜系統(tǒng)的運行狀況，用U0/U（Um）kv表示,。
U0－電纜設(shè)計用的導(dǎo)體對地或金屬屏蔽之間的額定工頻電壓,；
U－電纜設(shè)計用的導(dǎo)體間的額定工頻電壓；
Um－設(shè)備可承受的“zui高系統(tǒng)電壓”的zui大值,。
The rated voltage of the cable for a given applixation shall be suitable for the operating conditions
in the system in which the cable is used,and is expressed in the form of U0/U（Um）kv
Where:
U0－The rated power-frequency voltage between conductors and earth metallic screen ,for which the cable designed;
U － The rated power-frequency voltage between conductos, for which the cable designed;
Um－ The maximum value of the“highest system voltage”for which the equipment may beused.
· 三相系統(tǒng)用電纜的U0值推薦如下表：
The values of U0 recommened for cable to be used in three-phase systems are listed below: |
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,，zui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
電纜的型號Type of cable |
| 型號 Type | 名稱 Designation | 適用范圍 Application | | YJV | 銅芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Copper conductor,XLPE insulated and PVC sheathed power cable | 室內(nèi),、隧道及電纜溝等場所，不能承受機械外力,。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套電力電纜 Alumimium conductor ,XLPE | |
化工儀器網(wǎng)