GB50070-2020······1

1 總則······10

2 術(shù)語(yǔ)······11

3 基本規(guī)定······13

4 礦井井下······17

4.1 供配電系統(tǒng)······17

4.2 電氣設(shè)備及其保護(hù)······18

4.3 電纜線路······20

4.4 電氣設(shè)備硐室······22

4.5 照明······23

4.6 保護(hù)接地······24

5 露天礦采礦場(chǎng)和排廢場(chǎng)······27

6 電力牽引······31

6.1 一般規(guī)定······31

6.2 直流牽引變電所······32

6.3 直流牽引網(wǎng)······33

7 選礦廠······39

7.1 供配電系統(tǒng)······39

7.2 工藝流程控制······40

8 主要固定設(shè)備······42

8.1 礦井提升機(jī)······42

8.2 礦井主通風(fēng)機(jī)······44

8.3 礦井主排水泵······45

8.4 空氣壓縮機(jī)······45

8.5 帶式輸送機(jī)······46

8.6 貨運(yùn)架空索道······46

本標(biāo)準(zhǔn)用詞說(shuō)明······48

引用標(biāo)準(zhǔn)名錄······49

附：條文說(shuō)明······50

2 術(shù)語(yǔ)······53

3 基本規(guī)定······54

4 礦井井下······60

4.1 供配電系統(tǒng)······60

4.2 電氣設(shè)備及其保護(hù)······11

4.4 電氣設(shè)備硐室······63

4.5 照明······65

4.6 保護(hù)接地······65

5 露天礦采礦場(chǎng)和排廢場(chǎng)······66

6 電力牽引······68

6.1 一般規(guī)定······68

6.2 直流牽引變電所······68

6.3 直流牽引網(wǎng)······70

7 選礦廠······72

7.1 供配電系統(tǒng)······72

7.2 工藝流程控制······75

8 主要固定設(shè)備······77

8.1 礦井提升機(jī)······77

8.5 帶式輸送機(jī)······77

8.6 貨運(yùn)架空索道······77