GB50070-2020······1
1 总则······10
2 术语······11
3 基本规定······13
4 矿井井下······17
4.1 供配电系统······17
4.2 电气设备及其保护······18
4.3 电缆线路······20
4.4 电气设备硐室······22
4.5 照明······23
4.6 保护接地······24
5 露天矿采矿场和排废场······27
6 电力牵引······31
6.1 一般规定······31
6.2 直流牵引变电所······32
6.3 直流牵引网······33
7 选矿厂······39
7.1 供配电系统······39
7.2 工艺流程控制······40
8 主要固定设备······42
8.1 矿井提升机······42
8.2 矿井主通风机······44
8.3 矿井主排水泵······45
8.4 空气压缩机······45
8.5 带式输送机······46
8.6 货运架空索道······46
本标准用词说明······48
引用标准名录······49
附：条文说明······50
2 术语······53
3 基本规定······54
4 矿井井下······60
4.1 供配电系统······60
4.2 电气设备及其保护······11
4.4 电气设备硐室······63
4.5 照明······65
4.6 保护接地······65
5 露天矿采矿场和排废场······66
6 电力牵引······68
6.1 一般规定······68
6.2 直流牵引变电所······68
6.3 直流牵引网······70
7 选矿厂······72
7.1 供配电系统······72
7.2 工艺流程控制······75
8 主要固定设备······77
8.1 矿井提升机······77
8.5 带式输送机······77
8.6 货运架空索道······77
