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电缆(lan)：定义1：由一根或多(duo)根相(xiang)互绝缘的导(dao)体和外包绝缘保(bao)护层制成，将电力(li)或信息从一处传输到(dao)另一处的导(dao)线。

定(ding)义2：通(tong)常是由几(ji)根(gen)或几(ji)组(zu)导(dao)线（每组(zu)至少两根(gen)）绞(jiao)合而成的(de)(de)类似绳索的(de)(de)电(dian)缆，每组(zu)导(dao)线之间相(xiang)互绝(jue)缘，并常围绕着一根(gen)中心扭成，整个外面包有高度绝(jue)缘的(de)(de)覆盖层(ceng)。电(dian)缆具有内通(tong)电(dian)，外绝(jue)缘的(de)(de)特征。

分类

电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)有电(dian)(dian)(dian)(dian)(dian)(dian)(dian)力电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、控制电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、补偿电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、屏蔽(bi)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、高温电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、计算机电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、信号电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、同轴(zhou)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、耐火(huo)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、船用电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、矿(kuang)用电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)、铝合(he)金电(dian)(dian)(dian)(dian)(dian)(dian)(dian)缆(lan)等(deng)等(deng)。它们都是由(you)单(dan)股(gu)或(huo)多股(gu)导线(xian)和绝(jue)缘层组成，用来连接电(dian)(dian)(dian)(dian)(dian)(dian)(dian)路、电(dian)(dian)(dian)(dian)(dian)(dian)(dian)器等(deng)。

电(dian)缆按照光伏(fu)电(dian)站(zhan)的系(xi)统可分(fen)为直流(liu)电(dian)缆及(ji)交(jiao)流(liu)电(dian)缆，根据(ju)用途及(ji)使用环(huan)境(jing)的不同分(fen)类(lei)如下：

1.直流电缆

(1)组(zu)件(jian)与(yu)组(zu)件(jian)之(zhi)间的串联电缆。

(2)组(zu)串(chuan)之(zhi)(zhi)间及其组(zu)串(chuan)至直流(liu)配(pei)电(dian)(dian)箱(汇流(liu)箱)之(zhi)(zhi)间的并联电(dian)(dian)缆。

(3)直流配电(dian)箱至逆变器之间(jian)电(dian)缆。

以(yi)上电(dian)缆均为直流电(dian)缆，户(hu)外敷设较多，需防潮(chao)、防暴晒、耐(nai)寒、耐(nai)热、抗(kang)紫外线，某(mou)些的环境下还需防酸碱等化学物质。

2.交流电缆

(1)逆变(bian)器至升(sheng)压(ya)变(bian)压(ya)器的连接电(dian)缆。

(2)升压变压器至配(pei)电装置的连接电缆。

(3)配电(dian)装置至电(dian)网或(huo)用户的连接电(dian)缆。

此部分电(dian)(dian)(dian)缆为交流负荷(he)电(dian)(dian)(dian)缆，户(hu)内环境敷设较多，可按照一般电(dian)(dian)(dian)力电(dian)(dian)(dian)缆选型要求选择。