【導(dǎo)讀】上海賽科石油化工有限責(zé)任公司。一體化項(xiàng)目管理組。電氣施工技術(shù)導(dǎo)則。上海賽科IPMT建設(shè)部2020、6. （一）預(yù)埋施工----------------------------. （二）變壓器安裝----------------------------. （六）橋架安裝----------------------------. （八）照明安裝----------------------------. （九）接地安裝----------------------------. （十）電纜敷設(shè)----------------------------. （十一）二次接線----------------------------. （十二）防爆區(qū)域施工要求------------------------. （一）本技術(shù)文件為上海賽科石油化工責(zé)任有限公司90萬(wàn)噸乙烯工程項(xiàng)目的電

　　

【正文】 ould be not more than 10% of the tube. （ 2）所選用保護(hù)管的內(nèi)徑不應(yīng)小于電纜外徑的 倍。 the inner diameter of selected protection tube should be not less than times of external diameter of the cable. （ 3）電纜保護(hù)管埋設(shè)前應(yīng)根據(jù)電纜敷設(shè)表核對(duì)保護(hù)管的口徑是否合適，必要時(shí)可采取加大保護(hù)管口徑。 it is required to check whether the caliber of the protection tube is appropriate according to the cablelaying table before embedded the protection tube of the cable. The caliber of the protection tube can be increased if necessary. （ 4）地下保護(hù)管實(shí)際敷設(shè)位置應(yīng)與圖紙一致，因故不一致時(shí)，施工后須在圖紙上詳細(xì)標(biāo)出。 the actual laying position of the protection tube underground should be in conformity with the drawing. If it is not in some cases, the inconformity should be marked in detail on the drawing after the construction. （ 5）保護(hù)管管口應(yīng)特別加以保護(hù)，應(yīng)臨時(shí)封堵。防止異物落入。 the nozzle of the protection tube should be protected specially and blocked temporarily to prevent the foreign substance ing in. （ 6）保護(hù)管一般埋設(shè)深度為 ，鋼管出地面高度為 200mm。 the general embedded depth of the protection tube should be , the steel tube is 200mm higher above the ground. （ 7）保護(hù)管穿過鋼平臺(tái)時(shí)嚴(yán)禁用電焊開孔。 it is forbidden to open a hole with the welder at the steel plate where the protection tube passes through. （ 8）所有支架在安裝后應(yīng)及時(shí)去除焊渣、補(bǔ)刷防 銹漆及面漆。 it is required for all support to remove the welding slag and mend with antirust paint and top coat. 裝置區(qū)接地網(wǎng) earth mat at the area of equipment （ 1）裝置區(qū)接地網(wǎng)須在地坪鋪砌之前完成。 the laying of the earth mat at the area of equipment should be finished before paving the terrace. （ 2）條件允許時(shí)，接地網(wǎng)應(yīng)與地下給排水工程同時(shí)施工，并盡量利用可重復(fù) 利用的已開挖管溝，但敷設(shè)位置應(yīng)符合電氣設(shè)計(jì)圖紙要求。 the construction for earth mat should be performed together with drainage work underground if it is permitted. And it is required to make the best of the reusable existing pipe ditch. However, the laying position should be in conformity with the requirement of the drawing. Electric Construction Technical Guideline 電氣施工技術(shù)導(dǎo)則 PR00CIJEE0001 A00 Page 14 of 38 4/12/02 （ 3）埋地接地線采用搭接焊連接。嚴(yán)禁與地下鋼鐵件、地下工藝管道直接接觸。不得已情況下，接觸處必須采用 PVC 塑料管做絕緣保護(hù)。與地下鋼鐵件、地下工藝管道距離 米以內(nèi)均應(yīng)加 PVC 塑料管做絕緣保護(hù)，不應(yīng)遺漏。對(duì)于電氣保護(hù)管可不予考慮。埋深不少于 ，接地線敷設(shè)前溝內(nèi)不應(yīng)有石塊等硬 物，接地溝回填土應(yīng)采用泥土，不應(yīng)有大型石塊放置其上。 the embedded earth wire connects with end lap weld. It is forbidden to contact directly with the iron parts and process pipe underground. Insulation protection must be taken with PVC plastic tube at the connection in unavoidable occasion. Insulation protection must be taken with PVC plastic tube in the area from the iron parts and process pipe underground, which should not be missed. It is not required to take into account the electric protection tube. The embedded depth should not be less than 。 the hard substance such as stone should not exist in the ditch before laying the earth wire。 the earth ditch should be back filled with clay, big stone block should not be put on the ditch. （ 4） 接地網(wǎng)與多個(gè)分接地連接時(shí)，應(yīng)按設(shè)計(jì)要求設(shè)置便于分開的斷接卡。斷接卡 接觸面應(yīng)涂導(dǎo)電膏。 when connect the earth mat with multiple sub earth points, the disconnection clip which is easy to disconnect, should be setup according to the design specification. The contact surface of the disconnection clip should be painted with conductive grease. （ 5）所有接地引上線穿出地面、樓板、鋼平臺(tái)時(shí)均應(yīng)加鍍鋅鋼管保護(hù)。 all earth wire going through the ground, floor and steel plate should be protected with the galvanized steel pipe. （ 6）接地網(wǎng)埋設(shè)時(shí)應(yīng)向土建專業(yè)了解清楚地面的最終標(biāo)高位置，以此來決定接地網(wǎng)的相對(duì)埋深。 when embedding the earth mat, it is required to learn about the final level of the ground from the civil work specialty, thus to determine the relative embedded depth of the earth mat. （ 7）接地網(wǎng)敷設(shè)路徑須躲開設(shè)備基礎(chǔ)，地下閥門井，接地網(wǎng)不許平行敷設(shè)在地下管線的上方或下方。 the laying route of the earth mat should avoid the equipment foundation and the valve well underground. The earth mat should not be paralleled above or below the line underground. （ 8）接地網(wǎng)遇到障礙物時(shí)，敷設(shè)位置可適當(dāng)變動(dòng)，但須事先按規(guī)定征得同意，并詳細(xì)記錄下變動(dòng)情況，以供隱蔽工程記錄用。 when meeting the barrier, the laying position can be changed appropriately, which must get the agreement according to the regulations in advance. （ 9）接地線引出地面時(shí)，其位置應(yīng)盡量靠近需接地的設(shè)備，但要預(yù)防把接地線埋進(jìn)設(shè)備基礎(chǔ)的抹面層。 Electric Construction Technical Guideline 電氣施工技術(shù)導(dǎo)則 PR00CIJEE0001 A00 Page 15 of 38 4/12/02 when fetching out the earth wire from the ground, the position should be close to the equipment that need to earth as near as possible. But the earth wire should be prevented from embedding in the float coat of the equipment foundation. （ 10）對(duì)照明管等部分設(shè)計(jì)接地圖上未畫出的應(yīng)按規(guī)定可靠接地，不應(yīng)遺漏。 the lighting line etc., which are not drawn on the designed earth drawing, should be earthed reliably according to the specification but not missed. （ 11）接地干線過馬路應(yīng)穿 DN100 鍍鋅鋼管保護(hù)。 the main earth wire should be protected with galvanized steel pipe DN100 when go through the road. （ 12）整個(gè)裝置區(qū)（包括變電所室外）接地裝置構(gòu)成一個(gè)接地網(wǎng)，防雷、 防靜電、保護(hù)接地共用此接地網(wǎng)，接地電阻不大于 4Ω。 the earthing device at the whole area of the equipments (including the outside of the transformer station) poses an earth mat, which is a mon mat for the lightning arrester, antistatic and protection earth with a earth resistance not more than 4Ω。 （ 13）施工完畢的接地網(wǎng)因其他專業(yè)施工造成斷裂的，應(yīng)及時(shí)予以修復(fù)。 if the finished earth mat is broken by the construction work of other specialty, rehabilitation should be performed in time. （ 14）接地地下部分施工完畢應(yīng)及時(shí)、真實(shí)地作好隱蔽工程記錄，由甲方（丙方）檢查并會(huì)簽后方可回填土。 if the construction work for the earth underground pletes, record of concealed work should be taken in truth and in time. The back filling can be done after inspected and signed by the party A (party C). （二） 變壓器安裝 Installation of the transformer 變壓器就位前應(yīng)調(diào)整好基礎(chǔ)軌道的水平度， 并在其一側(cè)焊上適當(dāng)墊塊使變壓器頂蓋沿氣體繼電器方向有 1～ ％的升高坡度。變壓器不帶氣體繼電器時(shí)應(yīng)水平安裝。 the levelness of the foundation channel should be adjusted before emplacing the transformer. And proper shim block should be welded at one side of it to form an uprising grade of 1~