電氣成套的外殼應(yīng)有保護(hù)接地或接零連接的防護(hù)措施。接地保護(hù)用于配電變壓器中性點(diǎn)不直接接地（三相三線制）的供電系統(tǒng)中，用以保證當(dāng)電氣成套因絕緣損壞而漏電時(shí)產(chǎn)生的對(duì)地電壓不超過范圍。
The complete set of electrical enclosures shall be provided with protective measures for protective grounding or neutral connection. The grounding protection is used in the power supply system where the neutral point of the distribution transformer is not directly grounded (three-phase three-wire system) to ensure that the voltage to the ground generated by the leakage of the electrical complete set due to insulation damage does not exceed the safe range.
為了保證電氣成套的正常運(yùn)行和，保護(hù)功能須接地。為了使電氣成套接地，必須使用接地裝置。接地裝置主要包括兩種接地線和接地體。接地體是用來直接接觸土壤的金屬體；接地線是用來連接接地體和電氣成套的電線。
In order to ensure the normal operation and safety of the electrical complete set, the protection function must be grounded. In order to make the complete electrical grounding, the grounding device must be used. The grounding device mainly includes two kinds of grounding wire and grounding body. The grounding body is a metal body used to contact the soil directly; The grounding wire is used to connect the grounding body and the complete set of electrical wires.
此外檢查接地裝置的各個(gè)連接點(diǎn)是否有損傷、腐蝕、折斷現(xiàn)象以及是否接觸良好；在雨季前，也就是土壤的電阻率大時(shí)，對(duì)接地設(shè)備的接地電阻進(jìn)行測(cè)量，并分析比較測(cè)量結(jié)果。檢查土壤呈強(qiáng)酸、堿、鹽的地帶地下500mm以內(nèi)的接地體是否被腐蝕嚴(yán)重。
In addition, check whether each connection point of the grounding device is damaged, corroded, broken and in good contact; Before the rainy season, when the soil resistivity is high, measure the grounding resistance of grounding equipment, and analyze and compare the measurement results. Check whether the grounding body within 500mm underground in the zone with strong acid, alkali and salt is seriously corroded.
檢查電氣成套連接接地線是否正常，接地線連接接地網(wǎng)是否正常，以及接地線連接接地干線是否正常；對(duì)于檢修過的電氣成套，要進(jìn)一步檢查接地線連接是否牢固。
Check whether the complete set of electrical connection grounding wire is normal, whether the grounding wire is connected to the grounding grid, and whether the grounding wire is connected to the grounding trunk line; For the overhauled electrical complete set, further check whether the grounding wire is firmly connected.
對(duì)配（變）電所的接地設(shè)備通常一年檢查一次；用于防雷的接地設(shè)備必須每年雷雨季來臨前檢查一次；視建筑物或車間的具體情況，一年檢查1～2次接地線的總體運(yùn)行情況。
The grounding equipment of the distribution (substation) is usually inspected once a year; The grounding equipment used for lightning protection must be inspected once a year before the thunderstorm season; According to the specific situation of the building or workshop, check the overall operation of the grounding wire once or twice a year.
對(duì)安裝在腐蝕性土壤下的接地裝置，觀察具體運(yùn)行情況以每3～5年為周期檢查一次地面下的接地體；每1～3年測(cè)量一次接地設(shè)備的接地電阻；對(duì)移動(dòng)式、手持式的電氣成套每次使用前都需檢查一次接地線。更多相關(guān)內(nèi)容就來我們網(wǎng)站
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For the grounding device installed in corrosive soil, observe the specific operation and check the grounding body under the ground every 3-5 years; Measure the grounding resistance of grounding equipment once every 1-3 years; For mobile and hand-held electrical sets, the grounding wire shall be checked before each use. Come to our website for more relevant content http://gzjgfamen.com Consult!
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