配電箱維護(hù)手冊完成版7月28日

1、Operation and Maintenance Manual(Electrical-Distribution Board)維 護(hù) 操 作 手 冊（電氣-配電箱）Project Name: Andreas Stihl Powertools(QingDao) New Plant項(xiàng) 目 名 稱: 安德烈斯蒂爾動力工具（青島）有限公司新建廠房Construction Company: Shanghai Changjiang Züblin JV施 工 單 位： 上海長江旭普林建筑工程有限公司Submitted by:編 制 單 位：Date:日期： Table of Contents目 錄

2、1.0 General Description of Project工程概況 2.0 Main Materials Used in Project工程主要材料構(gòu)成3.0 Improtant Notices during installation of distribution boards配電箱安裝注意事項(xiàng)：4.0 Ambient Conditions and Notices for LV Distribution Boards:低壓配電柜使用環(huán)境、注意事項(xiàng)5.0 Instructions to Operation and Maintenance for LV Distribution Boa

3、rds低壓配電柜操作、維護(hù)說明：6.0 Trouble Shooting常見故障及處理方法：Maintenance Manual維護(hù)手冊1. General Description of Project工程概況：Project name ： Andreas Stihl Powertools (Qingdao) Co., Ltd. New Production Project項(xiàng)目名稱: 安德烈斯蒂爾動力工具青島有限公司新建廠房項(xiàng)目Employer： Andreas stihl Powertools (Qingdao) Co., Ltd.業(yè)主： 安德烈斯蒂爾動力工具（青島）有限公司General

4、contractor： Changjiang zublin JV總包方： 上海長江旭普林建筑工程有限公司Subcontractor: The Fourth Construction Co., Ltd. of China Electronics System Engineering專業(yè)承包公司： 中國電子系統(tǒng)工程第四建設(shè)有限公司Scope of Contract: LV Distribution System承包內(nèi)容： 低壓配電系統(tǒng)。Started: Apr. 1, 2006 Completed: Jun. 21, 2006工程開竣工日期： 2006-4-1至2006-6-212. Main M

5、aterials Used in Project工程主要材料構(gòu)成： In this project, the distribution boards can be divided into two kinds, one is LV switchboard, of which the body is from Zhenjiang Moller and inner components from German Moller, while the other is MCC, of which the body is from Shanghai Huatong and inner components

6、 from ABB.本工程配電柜為鎮(zhèn)江默勒電氣有限公司和上海華通輸配電有限公司產(chǎn)品?？梢苑殖傻蛪洪_關(guān)柜及MCC控制柜兩類。低壓開關(guān)柜為鎮(zhèn)江默勒成套配電柜，內(nèi)部器件為德國默勒公司產(chǎn)品。MCC柜為上海華通輸配電公司產(chǎn)品，柜體為德國施奈德產(chǎn)品，內(nèi)部器件為ABB產(chǎn)品。 Description of Functions of Each Distribution Boards各配電柜主要功能描述：S/N序號No. of Distribution Board配電箱編號Location位置Detailed Datas and Description of Functions詳細(xì)參數(shù)和功能描述16ALFuel

7、oil pump house 190190燃油泵房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖2AMHV distribution room高壓配電室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖34AL1Material packaging room390-01-01-01材料包裝間Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖44AL2Waste collecting roo

8、m390-01-02-01 廢料收集室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖54AP1Waste collecting room390-01-02-01 廢料收集室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖6KTJ2Waste collecting room390-01-02-01 廢料收集室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖74AP2Back-up ser

9、ver room hall 1390-01-60-01 備用服務(wù)器房門廳1Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖94ALE2Back-up server room hall 1390-01-60-01 備用服務(wù)器房門廳1Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖10EPS（30KW）Back-up server room hall 1390-01-60-01 備用服務(wù)器房門廳1Refer to systematic drawings and

10、 wiring drawings見配電箱系統(tǒng)圖、接線圖11Exhaust fan control box in back-up server room備用服務(wù)器室排風(fēng)機(jī)控制箱Back-up server room hall 1390-01-60-01 備用服務(wù)器房門廳1Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖12UPSBack-up server room hall 2390-01-61-01 備用服務(wù)器房門廳2Refer to systematic drawings and wiring drawings見配電箱系

11、統(tǒng)圖、接線圖134ALE2Back-up server room hall 2390-01-61-01 備用服務(wù)器房門廳2Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖144AL8Back-up server room hall 2390-01-61-01 備用服務(wù)器房門廳2Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖154AP3Lobby room390-01-80-01 休息室Refer to systematic drawings and wi

12、ring drawings見配電箱系統(tǒng)圖、接線圖164AL4Lobby room390-01-80-01 休息室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖174AL5FM factroy490-01-01-01 FM車間Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖184AP4Boiler house490-01-20-01鍋爐房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖1

13、9XH1Boiler house490-01-20-01鍋爐房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖20Soft water control box軟化水控制箱Boiler house490-01-20-01鍋爐房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖214AL6Boiler house490-01-20-01鍋爐房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖22

14、4ALE3Fire protection pump house490-01-50-01 消防泵房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖234AT1Fire protection pump house490-01-50-01 消防泵房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖244AT2Fire protection pump house490-01-50-01 消防泵房Refer to systematic drawings and wir

15、ing drawings見配電箱系統(tǒng)圖、接線圖25PS1 Fire protection pump house490-01-50-01 消防泵房Sprinkler pump control box, Refer to systematic drawings and wiring drawings噴淋泵控制箱 見配電箱系統(tǒng)圖、接線圖26WY1 Fire protection pump house490-01-50-01 消防泵房Sprinkler pump control box, Refer to systematic drawings and wiring drawings噴淋泵控制箱 見配

16、電箱系統(tǒng)圖、接線圖27WY2 Fire protection pump house490-01-50-01 消防泵房Fire protection control box, Refer to systematic drawings and wiring drawings消防穩(wěn)壓泵控制箱 見配電箱系統(tǒng)圖、接線圖28XF1 Fire protection pump house490-01-50-01 消防泵房Fire protection control box, Refer to systematic drawings and wiring drawings消防泵控制箱 見配電箱系統(tǒng)圖、接線圖2

17、9QW Fire protection pump house490-01-50-01 消防泵房Submersible pump control box, Refer to systematic drawings and wiring drawings潛污泵控制箱 見配電箱系統(tǒng)圖、接線圖30PS2Fire protection pump house490-01-50-01 消防泵房Diesel sprinkler pump control box, Refer to systematic drawings and wiring drawings柴油噴淋泵控制箱 見配電箱系統(tǒng)圖、接線圖31XF2D

18、iesel pump house490-01-30-01 柴油泵房Diesel fire protection pump control box, Refer to systematic drawings and wiring drawings柴油消防泵控制箱 見配電箱系統(tǒng)圖、接線圖334AL7490-01-60-01 Room for future 490-01-60-01 預(yù)留房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖344ALE4Generator room490-01-70-01 發(fā)電機(jī)房Refer to s

19、ystematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖35AL04Western-style food making area030-01-81-01 西餐制作區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖36AL04-1Canteen030-01-70-01 廚房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖37AL04-2Ventilator room030-02-70-01 通風(fēng)機(jī)房Refer to

20、systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖38AL04-3Canteen030-01-70-01 廚房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖39KTJ1Ventilator room030-02-70-01 通風(fēng)機(jī)房Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖40AL03Techincal room020-01-10-01 技術(shù)室Refer to systematic drawings

21、 and wiring drawings見配電箱系統(tǒng)圖、接線圖41ATMTechincal room020-01-10-01 技術(shù)室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖42ALTechincal room020-01-10-01 技術(shù)室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖43AP5Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、

22、接線圖44AP6Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖45AP7Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖46AP8Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖47AL1-8Logistics Building配貨區(qū)Refer to syste

23、matic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖48AL1-9Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖49AL1-9aLogistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖50AL1-10Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電

24、箱系統(tǒng)圖、接線圖51AL1-10aLogistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖52AC15Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖53AC23Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖54AC24Logistics Building配貨區(qū)Refe

25、r to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖55AC32Logistics Building配貨區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖56AC33Logistics Building, air conditioner配貨區(qū) 空調(diào)機(jī)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖57AC34Logistics Building, air conditioner配貨區(qū) 空調(diào)機(jī)Refe

26、r to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖58AC35Logistics Building, air conditioner配貨區(qū) 空調(diào)機(jī)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖59AL02Office area400-02-70-01 辦公區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖60AL02-1Office area400-02-70-01 辦公區(qū)Refer to sy

27、stematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖61AL02-2Office area400-02-70-01 辦公區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖62AL01-1Office area400-02-70-01 辦公區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖63AL01-2Office area400-02-70-01 辦公區(qū)Refer to systematic drawings

28、and wiring drawings見配電箱系統(tǒng)圖、接線圖64AL3Office area400-02-70-01 辦公區(qū)Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖65AP3-1Grid 10 on Technical Gallery設(shè)備平臺 10軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖66AP3-3Grid 10 on Technical Gallery設(shè)備平臺 10軸Refer to systematic drawings and w

29、iring drawings見配電箱系統(tǒng)圖、接線圖67AC3-1Grid 10 on Technical Gallery設(shè)備平臺 10軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖68N-FCGrid 10 on Technical Gallery設(shè)備平臺 10軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖69N-AHUGrid 13 on Technical Gallery設(shè)備平臺 13軸Refer to systematic drawings

30、and wiring drawings見配電箱系統(tǒng)圖、接線圖70AL1-2Grid 13 on Technical Gallery設(shè)備平臺 13軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖71AL3-1Grid 13 on Technical Gallery設(shè)備平臺 13軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖72AP1Grid 15 on Technical Gallery設(shè)備平臺 15軸Refer to systematic drawi

31、ngs and wiring drawings見配電箱系統(tǒng)圖、接線圖73AP2Grid 15 on Technical Gallery設(shè)備平臺 15軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖74AL01Grid 17 on Technical Gallery設(shè)備平臺 17軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖75Distribution box for fan in air compressor空壓機(jī)風(fēng)機(jī)配電箱Grid 17 on Te

32、chnical Gallery設(shè)備平臺 17軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖76 AL1-1Grid 19 on Technical Gallery設(shè)備平臺 19軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖77AL1-3Grid 19 on Technical Gallery設(shè)備平臺 19軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖78AL1-4Grid 1

33、9 on Technical Gallery設(shè)備平臺 19軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖79AL3-2Grid 19 on Technical Gallery設(shè)備平臺 19軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖80ALE3-1Grid 19 on Technical Gallery設(shè)備平臺 19軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖81ALE3

34、-2Grid 19 on Technical Gallery設(shè)備平臺 19軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖82AP3Grid 20 on Technical Gallery設(shè)備平臺 20軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖83AP4Grid 20 on Technical Gallery設(shè)備平臺 20軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖84A

35、P9Grid 20 on Technical Gallery設(shè)備平臺 20軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖85AP10Grid 20 on Technical Gallery設(shè)備平臺 20軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖86AP3-2Grid 21 on Technical Gallery設(shè)備平臺 21軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖

36、87AC3-3Grid 21 on Technical Gallery設(shè)備平臺 21軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖88AC3-4Grid 23 on Technical Gallery設(shè)備平臺 23軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖89AC3-5Grid 25 on Technical Gallery設(shè)備平臺 25軸Refer to systematic drawings and wiring drawings見配電箱系

37、統(tǒng)圖、接線圖90AC3-6Grid 31 on Technical Gallery設(shè)備平臺 31軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖91N-P-FCGrid 31 on Technical Gallery設(shè)備平臺 31軸Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖92AL3-3Server room服務(wù)器室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖93AEESer

38、ver room服務(wù)器室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖94Exhasut fan control box in server room服務(wù)器室排風(fēng)機(jī)控制箱Server room服務(wù)器室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖95UPSServer room服務(wù)器室Refer to systematic drawings and wiring drawings見配電箱系統(tǒng)圖、接線圖3. Improtant Notices durin

39、g installation of distribution boards配電箱安裝注意事項(xiàng)：1) The earthing for metal frame and foundation of distribution board must be reliable, and the door must be connected with earthing teminal by knitted soft copper wire.配電柜的金屬框架及基礎(chǔ)型鋼必須接地（PE）或接零（PEN）可靠，配電箱的開啟門必須與接地端子間用軟編織銅線連接。2) Electric shock protection

40、inside distribution board must be reliable.配電箱內(nèi)應(yīng)有可靠的電擊保護(hù)。3) The A-B or P-E insulation resistance must be larger than 0.5 M in feeding cables, and larger than 1 M in secorday circuit.盤柜間線路的線間和線對地間的絕緣電阻值，饋電線路必須大于0.5M,二次回路必須大于1M。4) Installation of lighting panels shall comply with the following regulat

41、ions.照明配電箱安裝符合下列規(guī)定：a) Neat wiring and no twisted joint; tight wiring and no damage to cores and no break. The wires connected to the terminal cannt be more than 2 nos, and all accessories such as lossing washer are complete.箱內(nèi)配線整齊，無絞接現(xiàn)象。導(dǎo)線連接緊密，不傷芯線，不斷股。同一端子上導(dǎo)線連接不多于2根，防松墊圈等零件齊全。b) The switches shall

42、operate agilely and reliably and electricity leakage protection devices installed in circuits should have not more than 30mA spill current, and not more than 0.1s acting time.箱內(nèi)開關(guān)動作零活可靠，帶有漏電保護(hù)的回路，漏電保護(hù)裝置動作電流不大于30mA，動作時(shí)間不大于0.1s。c) In ligting panel, the N and E shall be distributed through the installe

43、d bus bar wire.照明箱內(nèi)，分別設(shè)置零線和保護(hù)地線匯流排，零線和保護(hù)地線經(jīng)匯流排配出。d) To insall panels, allowed deviation in vertical direction is 0.15%.盤面安裝垂直度允許偏差為0.15。4. Ambient Conditions and Notices for LV Distribution Boards:低壓配電柜使用環(huán)境、注意事項(xiàng)1) Ambient conditions: upper limit is +40°C, and lower limit -5°C, when stored

44、or transported, -30°C is allowed.環(huán)境溫度： 上限+40°C 下限-5°C（允許在-30°C時(shí)儲運(yùn)）； 2) The height above sea level doesnt exceed 1000m.海拔高度不超過1000m；3) Relative humidity isnt larger than 90%, when the temperature is +25°C.相對濕度不大于90%（+25°C時(shí)）； 4) The distribution board shall be located in

45、places which are free from fires, explosion, chemical corrasion and severe vibration.沒有火災(zāi)、爆炸危險(xiǎn)、嚴(yán)重污穢、化學(xué)腐蝕及劇烈振動的場所；5) Rollover, bottomup and severe vibration are not allowed.不許傾翻，倒置和遭受劇烈震動； 6) Measures shall be taken to prevent distribution boards from rain and gettiing damp.應(yīng)防止淋雨，以免產(chǎn)品受潮； 7) Component

46、s or accessories are not allowed to dismantle at will.不得隨意拆卸電器產(chǎn)品及零件。8) Temporary electrical devices are allowed to connect with distribution boards.不得隨意接入配電箱內(nèi)臨時(shí)用電設(shè)備。9) To change the capacity of electrical devices at will is prohibited, and the capacity change must be consistent with the switches in

47、distribution boards.不得隨意更改用電設(shè)備的容量，更換設(shè)備的容量必須于配電柜開關(guān)匹配10) Regular cleaning and maintenance for distribution boards shall be execuated.配電箱要定期進(jìn)行清潔、維護(hù)11) Persons shall be specially assigned for parolling and inspecting engaged MCCs. 投入運(yùn)行的MCC配電箱要定期派專人巡視、檢查 5. Instructions to Operation and Maintenance for L

48、V Distribution Boards低壓配電柜操作、維護(hù)說明：Before distribution boards are brought into service, please check and operate them as follows:配電箱在投入運(yùn)行之前，請進(jìn)行下列檢查及操作1) Check any sundries, all components, and insulation.低壓配電柜投入運(yùn)行前，檢查配電柜內(nèi)有無雜物，柜內(nèi)各個(gè)元器件目測正常，線路絕緣完好2) Check On and Off positions of all switches.檢查各設(shè)備開關(guān)在斷開位

49、置3) Check status of electrical devices to make sure that all valves stay in correct positions, whether open or close.檢查配電設(shè)備狀態(tài)正常，各閥門開、閉位置正確4) Check whether the working status of equipments is as set up, mannual or automatic.檢查設(shè)備運(yùn)行狀態(tài)在設(shè)定的運(yùn)行位置（手動、自動）5) Switch on main switches for energization.主開關(guān)合閘送電6)

50、Switch on equipment switches.設(shè)備開關(guān)合閘7) Make sure that the fans in distribution boards are working normally.確認(rèn)配電柜散熱風(fēng)扇運(yùn)行正常8) After equipments start running, observe the working status of all contactors and settings of transducers.設(shè)備投入運(yùn)行，觀察配電柜各接觸器運(yùn)行是否正常，變頻器設(shè)置是否正確。9) Check working status of equipments.檢查

51、設(shè)備運(yùn)行狀態(tài)是否正常。After distribution boards are running for one circle, half a year to one year in general, they shall be switched off, checked and repaired, if needed, to ensure normal operation of components, such as switches, contactors, etc.and the noraml life of equipments and to eliminate hidded trou

52、bles.配電箱在運(yùn)行一個(gè)周期后（一般為半年至一年），要及時(shí)停電檢修，以保證開關(guān)、接觸器等元器件的正常運(yùn)行，以保證設(shè)備的正常壽命和減少事故隱患。 The following procedures shall be followed to check and repair distribution boards periodically.配電柜的正常周期檢修包括一下內(nèi)容：1 Switch off distribution boards, and put up the mark for checking and repairing.配電箱停電，并掛檢修標(biāo)識牌。2 First confirm tha

53、t the power is off, and use cleaner to sweep off all dust inside distribution boards.開關(guān)柜的清理，請確認(rèn)停電以后，將配電柜內(nèi)的灰塵用洗塵器進(jìn)行清理3 Check whether the wiring screws or fix screws are loose or not, if so, screw them down.檢查配電柜內(nèi)的接線螺絲、固定螺絲是否有松動并緊固。4 Check the aging of circuitry and elasticity of cable insulation.檢查配電

54、柜內(nèi)線路有無老化現(xiàn)場，電纜絕緣是否彈性良好。5 Check overheating, aging or any defects of connecting terminals. 檢查接線端子有無過熱，老化現(xiàn)象。并檢查端子有無缺陷。6 The insulation resistance between phases and phase to earth shall be tested by megger, which should be over 0.5M, to eliminate hidden troubles caused by aging of insulation of part circuitry.要絕緣搖表搖測線路相間及對地電阻，絕緣應(yīng)在0.5M以上，防止部分線路絕緣老化產(chǎn)生隱患。7 Take off the casing of breaker to check the abrasive wear of contacts, ensuring no obvious nicks, no overheating, good elasticity, and complete contact surface. If some contacts are damaged severely, they shall be replaced.將斷路器外殼摘下，檢查