斷流器操作指南翻譯-中英對照
13.1.4.5 銷
應(yīng)對所有零部件的銷進(jìn)行檢查，例如：墊圈，螺母。當(dāng)移動銷的位置時，應(yīng)檢查每個銷的直線性及其鍍鋅狀況，確保無深度腐蝕區(qū)域的存在。
根據(jù)以下方面對銷進(jìn)行分類：
a) 尺寸及材料
b) 使用狀況
所有使用狀況差的銷都應(yīng)該在初次檢驗且獲得項目經(jīng)理或其監(jiān)督人員授權(quán)的情況下被棄用，與此同時呈遞一份被棄用銷的明細(xì)清單。
應(yīng)將銷包裝在帶有編號的木箱內(nèi)以便于運輸。準(zhǔn)備一份列有裝箱編號，每種類型銷的數(shù)量，銷的使用狀況以及木箱重量的清單。該清單的拷貝將按照指示要求呈遞。
13.1.4.6 斷流器
將MV斷開，同時對保護裝置進(jìn)行拆除，清潔并分類。所有嚴(yán)重受損的零件都應(yīng)該在初次檢驗且得到項目經(jīng)理或其監(jiān)督人員授權(quán)的情況下被棄用，并向其呈遞一份詳細(xì)的廢棄零部件清單。
對于使用狀況良好的元件，應(yīng)做好標(biāo)記并將其包裝好。每個元件都必須包括所有的零部件，例如：固定支架、橫木、螺釘、螺母，墊圈和接地端子。由承包商決定所有斷流器的熔絲尺寸。準(zhǔn)備一份包含關(guān)鍵數(shù)字，品牌名稱，類型，零部件及熔絲特性的清單。該清單的拷貝將按照指示要求呈遞。
13.1.4.7配電變壓器
將配電變壓器從極柱或平臺上移開，并檢查是否漏油，絕緣體的損壞情況或其他任何一個可能出現(xiàn)缺陷，這些問題必須在下次使用以及下一施工階段試運行之前多加注意。
對于每一個變壓器都應(yīng)準(zhǔn)備一份報告，內(nèi)容如下：
a) 品牌名稱
b) 電壓
c) 相位數(shù)
d) 等級
e) 連接組別
f) 使用狀況（描述其缺陷）
g) 序號以及員工登記號
每個變壓器都應(yīng)便于運輸，務(wù)必保護所有的電子管，保護所有的套管以及呼吸頂油罐。
對于漏油的變壓器，應(yīng)先將油污清洗干凈，同時在泄漏點處做好記號。在每個空的變壓器上放置一塊標(biāo)示牌上面注明該變壓器內(nèi)不含油的字樣。油應(yīng)被安全的存放在筒內(nèi)，并與附注清單一起交給雇主。該清單的拷貝將按照指示要求呈遞。
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13.1.5 關(guān)于拆卸的一般性建議
13.1.5.1 導(dǎo)體的拆除
對于一次(MV)導(dǎo)體的拆除, 應(yīng)利用中間極上的木塊，通過一端的卷軸旋轉(zhuǎn)，同時確保另一端被保護連接至一根張緊的繩索上，拉緊卷軸直至達(dá)到全部長度。總而言之，兩端都必須為“死端”或是轉(zhuǎn)角桿。
對于二次(LV)電路的拆除, 緩慢移動要求如下：首先，將串聯(lián)起的木塊系到極上，然后將所有的接頭從導(dǎo)體上移開。將導(dǎo)體安放于串起木塊之中，并像移動一次導(dǎo)體那樣進(jìn)行移動，在操作過程中始終要使用注意不得對導(dǎo)體，私人及公共財產(chǎn)，標(biāo)識以及運輸工具造成損壞。
13.1.5.2 針形絕緣子的拆除
拆除針形絕緣子時必須千萬小心，負(fù)責(zé)該項工作的人員必須有絕緣體安裝的經(jīng)驗以防意外事故的發(fā)生。逆時針方向旋轉(zhuǎn)絕緣子直至其完全自由，即可完成本項操作。然后，使用繩索將絕緣子下降至地面，不得拋扔或使其墜落到地面。
13.1.5.3 線軸式絕緣子的拆除
對于在接下來工程中不會再用到的線軸式絕緣子，通過移除再重新安裝線軸式絕緣子的方式完成其拆除工作。
13.1.5.4 懸式絕緣子的拆除
絕緣子串應(yīng)以完整的串列形式重新安裝，在將導(dǎo)體移開后，通過確保將其串成一行至繩索上后再降落至地面，然后在地面完成拆除工作。
13.1.5.5 變壓器的拆除
當(dāng)拆除高架式變電站時，關(guān)鍵的步驟是讓變壓器下降。該操作應(yīng)根據(jù)以下步驟進(jìn)行：將一根鋼纜系到變壓器的起重吊耳上，吊起其中一極的橫木，通過一個滑輪系統(tǒng)將變壓器從平臺上提升然后將其放置于地面上；或者使用起重機。
電涌放電器和斷流器都是獨立的部件，僅要求松開MV電壓跳線，然后松開橫木上的支架螺絲進(jìn)行拆除。將配電盤從平臺上降至地面后方可對其進(jìn)行拆除。
Section VIII: Technical Specifications Page Vlll-108
13.1,4.5 Pins
Pins shall be checked for all accessories such as washers, nuts. When pins are removed, each pin shall be checked for stratghtness and galvanizing condition,with no deep corrosion zones.
Pins shall be classified according to:
a) Dimensions and material,
b) Condition. • .
All pins in bad condition shall be discarded with prior inspection and authorization from Project Man¬ager or his Supervision staff, to whom shall be submitted a list of discarded pins.
Pins shall be packed in numbered wooden cases in order to be transported. A list case numbers, number of pins of each type, pin condition and the case weights shall be prepared. Copies of this list shall be submitted as indicated.
13.1.4.6 Cut-Outs
MV disconnection and protection devices shall be dismantled, cleaned and classified. All units which are seriously damaged shall be discarded with prior inspection and authorization from Project Man¬ager or his supervision staff, to whom shall be submitted a detailed list of discarded units.
Elements in good condition shall be marked and packed. Each element shall have all its accessories such as fixing bracket, crossarm, bolts, nuts, washers, grounding terminals. The Contractor shall de¬termine the fuse size of ail cut-outs. A list of key numbers, brand names, types, accessories and fuse characteristics shall be prepared. Copies of this list shall be submitted as indicated.
13.1.4.7 Distribution Transformers
Distribution transformers shall be removed from poles or platforms and shall be subject of an inspec¬tion for oil leakages, damaged insulators or any other defect which requires attention before re-use and new commissioning in next construction phase.
For each transformer a report shall be prepared describing:
a) Brand name,
b) Voltages,
c) Number of phases,
d) Rating,
e) Connection group,
f) Condition (describing defects),
g) Serial number and Employer registration number.
Each transformer shall be prepared for transportation, securing all valves and protecting bushings and breathing tank.
For all transformers which have oil leakages, the oil shall be removed, while marking the points where leakage occurs. A sign indicating that transfqrmer does not contain oif shall be placed on each empty transformer. Oil shall be securely stored in drums and delivered to the Employer with a detailed list. Copies of this list shall be submitted as indicated.
Tanzania: Distribution System Reinforcement Project, Dar es Salaam, Arusha and Kilimanjaro DECON
Tender Documents for Lot 4: Plant and Equipment for 33/11 kV Overhead Lines mho/tender docs lot 4-doc
Section VI!!: Technical Specifications Page VIII-109
13.1,5 General Recommendations for Dismantling
13.1.5.1 Dismantling of Conductors
Dismantling of primary (MV) conductors shall be made using blocks on intermediate poles with a reel at one end which shall be rotated while the other end is secured to a tensioning rope paying out to the take-up reel until completing the total length. In general, both ends shall be dead-end or angle poles.
Dismantling of secondary circuits (LV) snail proceed as follows. First the stringing blocks shall be tied to the poles, then all ties will be removed from the conductor. The conductor shall be placed in the stringing blocks and removal shall proceed as prescribed for removal of the primary conductor, always taking the necessary precautions to prevent damage to the conductor, private and public property, signs, and vehicles.
13.1.5.2 Dismantling of Pin Insulators
This shall be made with utmost care, and personnel in charge of this task shall have experience in in¬sulator installation to avoid accidents. This task shall be carried-out by rotating the insulator in counter clockwise direction until it is completely free, then the insulator shall be lowered with a rope and shall not be thrown or dropped onto the ground.
13.1.5.3 Dismantling of Spool Insulators
This task shall be done by removing and retrieving spoo! insulators that shall not be used in further works. . .
13.1.5.4 Dismantling of Suspension Insulators
Insulator strings shall be retrieved as complete strings, after removal of conductor, by securing the string to a rope to lower it to the ground, with dismantling done on the ground.
13,1.5.5 Dismantling of Transformers
When dismantling overhead substations, the/critical task is to lower the transformer safely. This shall be done as follows: a steel cable is tied to transformer lifting lugs, slung over the crossarm of one pole and the transformer is lifted with a pulley system to raise the transformer from the platform and to lower the transformer to the ground; or by using a crane.
Surge arresters and cut-outs are single units requiring only to loosen MV voltage jumpers and then loosen bracket bolts on the crossarm.
Distribution panels shall be dismantled after lowering from the platform to the ground.
Tanzania: Distribution System Reinforcement Project, Dar es Salaam, Arusha and Kilimanjaro DECON
Tender Documents for Lot 4: Plan
2013.3.12