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电缆：定义1：由一根或多根相互绝(jue)(jue)缘的导(dao)体和外包(bao)绝(jue)(jue)缘保护层制(zhi)成，将电力或信息从一处传输到另一处的导(dao)线。

定义2：通(tong)常是由(you)几根或几组导线(xian)（每组至少两根）绞合而成的(de)类似(si)绳索的(de)电(dian)缆(lan)(lan)，每组导线(xian)之间相互(hu)绝(jue)(jue)缘(yuan)，并常围绕着一根中心扭(niu)成，整个外(wai)面包有高度绝(jue)(jue)缘(yuan)的(de)覆盖层。电(dian)缆(lan)(lan)具有内通(tong)电(dian)，外(wai)绝(jue)(jue)缘(yuan)的(de)特征。

分类

电(dian)(dian)(dian)(dian)(dian)缆(lan)有电(dian)(dian)(dian)(dian)(dian)力(li)电(dian)(dian)(dian)(dian)(dian)缆(lan)、控制电(dian)(dian)(dian)(dian)(dian)缆(lan)、补偿电(dian)(dian)(dian)(dian)(dian)缆(lan)、屏(ping)蔽电(dian)(dian)(dian)(dian)(dian)缆(lan)、高温电(dian)(dian)(dian)(dian)(dian)缆(lan)、计算机电(dian)(dian)(dian)(dian)(dian)缆(lan)、信(xin)号电(dian)(dian)(dian)(dian)(dian)缆(lan)、同轴电(dian)(dian)(dian)(dian)(dian)缆(lan)、耐火电(dian)(dian)(dian)(dian)(dian)缆(lan)、船用(yong)电(dian)(dian)(dian)(dian)(dian)缆(lan)、矿用(yong)电(dian)(dian)(dian)(dian)(dian)缆(lan)、铝合金(jin)电(dian)(dian)(dian)(dian)(dian)缆(lan)等(deng)(deng)等(deng)(deng)。它们都(dou)是(shi)由(you)单股(gu)或多股(gu)导线和绝缘层组成(cheng)，用(yong)来(lai)连接电(dian)(dian)(dian)(dian)(dian)路、电(dian)(dian)(dian)(dian)(dian)器等(deng)(deng)。

电(dian)(dian)缆按照光伏电(dian)(dian)站的系统可分为直流电(dian)(dian)缆及交流电(dian)(dian)缆，根据用途(tu)及使(shi)用环境的不(bu)同分类如下：

1.直流电缆

(1)组件与(yu)组件之间的串联电缆(lan)。

(2)组串之(zhi)(zhi)间(jian)及(ji)其组串至直流(liu)配电箱(汇流(liu)箱)之(zhi)(zhi)间(jian)的(de)并联电缆(lan)。

(3)直流配(pei)电箱至逆变器(qi)之间(jian)电缆。

以上电缆(lan)(lan)均为(wei)直流电缆(lan)(lan)，户外(wai)敷设较多，需防潮(chao)、防暴晒、耐寒、耐热(re)、抗紫(zi)外(wai)线，某些环境下(xia)还需防酸碱等(deng)化学物质(zhi)。

2.交流电缆

(1)逆变(bian)器至升压(ya)变(bian)压(ya)器的连接(jie)电缆。

(2)升压(ya)变压(ya)器至配电装置的连(lian)接电缆。

(3)配电(dian)装置至电(dian)网或用户的(de)连接电(dian)缆(lan)。

此部分电(dian)(dian)缆为(wei)交(jiao)流负荷电(dian)(dian)缆，户(hu)内(nei)环境敷设较多，可按照一(yi)般(ban)电(dian)(dian)力电(dian)(dian)缆选型要求选择(ze)。