电缆附件是连接电缆与输电线路及相关配电装置的产品，一般指电缆线路中各种电缆的中间连接及终端连接，它与电缆一起构成电力输送网络；电缆附件主要是依据电缆结构的特性，既能恢复电缆的性能，又保证电缆长度的延长及终端的连接。
Cable accessories are products connecting cables with transmission lines and related distribution devices, generally refer to the intermediate connection and terminal connection of various cables in cable lines, which together with cables constitute the power transmission network; cable accessories are mainly based on the characteristics of cable structure, which can not only restore the performance of cables, but also ensure the extension of cable length and terminal connection.
按其用途一般分为终端连接及中间连接，终端连接分为户内终端和户外终端，一般情况户外终端是指露天电缆接头，户内终端是指室内连接电缆与电气设备的接头；中间连接分为直通式和绝缘式两种。
According to its purpose, it is generally divided into terminal connection and intermediate connection. The terminal connection is divided into indoor terminal and outdoor terminal. Generally, outdoor terminal refers to outdoor cable joint, indoor terminal refers to indoor connection cable and electrical equipment joint; the intermediate connection is divided into straight through type and insulation type.
电力电缆附件包括：户外终端、GIS终端、中间接头、接地箱、交叉互联箱及护层保护器，现在110kV及以上电缆头一般为预制式结构。
Power cable accessories include: outdoor terminal, GIS terminal, intermediate joint, grounding box, cross interconnection box and sheath protector. At present, cable heads of 110kV and above are generally prefabricated structures.
护层保护器一般安装在电缆线路接地保护箱和交叉互联箱体内内。
The sheath protector is generally installed in the cable line grounding protection box and the cross interconnection box