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安裝工程電氣技術(shù)交底12-10室內(nèi)電纜橋架安裝工程技術(shù)交底-在線瀏覽

2025-02-19 13:42本頁(yè)面
  

【正文】 規(guī)定 : ( 1) 電纜橋架應(yīng)盡可能在建筑物 、構(gòu)筑物 (如墻柱梁、樓板等 )上安裝。 ( 3) 梯架或有孔托盤(pán)水平敷設(shè)時(shí)距地高度不低于 ;線槽、無(wú)孔托盤(pán)距地高度不低于。 ( 4) 橋架垂直敷設(shè)時(shí) ,在距地 ,但敷設(shè)在電氣專(zhuān)用房間內(nèi)時(shí)可除外。 ( 6) 下列不同電壓不同用途的電纜除因條件限制只能安裝在同一層橋架上并采用隔板隔開(kāi)外 ,均不應(yīng)敷設(shè)在同一層橋架上 : ① 1kⅤ以上和 1kⅤ以下的電纜; ② 強(qiáng)電、弱電、控制電纜; ③ 應(yīng)急照明和其他照明電纜; ④ 向一級(jí)負(fù)荷供電的雙路電源電纜。 ( 8) (8)電纜橋架水平敷設(shè)時(shí) ,支撐跨距一般為 ~ 3m,垂直敷設(shè)時(shí) ,固定點(diǎn)間距不大于 2m。在進(jìn)出箱、柜和變形縫及丁字接頭的三端 500mm內(nèi)設(shè)支撐。 ( 10) 電纜橋架在穿過(guò)墻及樓板時(shí) ,應(yīng)采取防火隔離措施。電纜橋架跨越建筑物伸縮縫處 ,應(yīng)設(shè)置伸縮縫或伸縮板。 ( 13) 電 纜可敷設(shè)在線槽內(nèi) ,但在梯架或托盤(pán) (指未完全封閉 )內(nèi) ,不應(yīng)直接敷設(shè)導(dǎo)線。 技術(shù)交底記錄 編號(hào): 2 ( 15) 電纜在橋架內(nèi)的填充率 ,電力電纜不應(yīng)大于 40%,控制電纜不應(yīng)大于 50%。 現(xiàn)場(chǎng)條件 ( 1) 土建工程應(yīng)全部結(jié)束且預(yù)留孔洞 ,預(yù)埋件符合設(shè)計(jì)要求 ,預(yù)埋件安裝牢固 ,強(qiáng)度合格。 ( 3) 室內(nèi)電纜橋架的安裝 宜在管道及空調(diào)工程施工基本完畢后進(jìn)行。 (二) 材質(zhì)要求 根據(jù)設(shè)計(jì)要求的規(guī)格型號(hào)、現(xiàn)場(chǎng)勘察記錄和施工方案編制材料使用計(jì)劃 ,包括各種規(guī)格電纜橋架的直線段、彎通、橋架附件及支、吊架等。 根據(jù)設(shè)計(jì)要求和現(xiàn)場(chǎng)勘察記錄 ,編制電纜使用計(jì)劃 ,包括各種規(guī)格、型號(hào)的電力電纜、控制電纜等。 ( 2) 檢查橋架 板材厚度應(yīng)滿足下列要求 : 橋架寬度( mm) 允許最小厚度( mm) < 400 400~ 800 > 800 ( 3) 橋架外觀檢查: 測(cè)量外形尺寸與標(biāo)稱(chēng)型號(hào)規(guī)格是否一致。電鍍鋅的鋅層表面應(yīng)光滑均勻 ,無(wú)起皮、氣泡、花斑、劃傷等缺陷。橋架焊縫表面均勻 ,無(wú)漏焊、裂紋、夾渣、燒穿、弧坑等缺陷。同一組內(nèi)相鄰兩孔間距允許偏差177。 1mm。 。將收集的產(chǎn)品合格證和出廠檢驗(yàn)報(bào)告整理后一并存檔。 ( 2) 檢查電線 `電纜規(guī)格型號(hào)是否符合設(shè)計(jì)要求 ,檢查截面尺寸、絕緣層是否符合現(xiàn)行國(guó)家標(biāo)準(zhǔn)。 ( 4) 對(duì) 1kV 以下電纜線路 ,應(yīng)使用 1000V 絕緣電阻表測(cè)線間及對(duì) 地的絕緣電阻 ,且阻值不得低于 1MΩ 。 (三) 主要機(jī)具 電工工具、電錘、電鉆、鋼卷尺、粉線袋等。 技術(shù)交底記錄 編號(hào): 3 二、 質(zhì)量要求 質(zhì)量要求應(yīng)符合《建筑電氣工程施工質(zhì)量驗(yàn)收規(guī)范》 (GB503032021)的規(guī)定。 (二) 固定件安裝 采用直徑不小于 8mm 的圓鋼自制或選用成品 ,在土建結(jié)構(gòu)施工中按劃 定的位置預(yù)埋固定牢固 ,用膠布包纏螺紋部分。 ( 1) 適用于 C15 以上混凝土構(gòu)件及實(shí)心磚墻上 ,不適用空心磚墻或陶?;炷疗鰤K等輕型墻體。 ( 3) 打孔的深度應(yīng)以將套管全部埋人墻內(nèi)或頂板內(nèi) ,表面平齊為宜。 預(yù)埋鐵的自制加工尺寸不應(yīng)小于 120 60 60mm,在土建結(jié)構(gòu)施工中進(jìn)行預(yù)埋 ,預(yù)埋鐵平面應(yīng)緊貼模板 ,并應(yīng) 固定牢固。 自制支架與吊架所用扁鐵規(guī)格不應(yīng)小于 30mm 3mm,扁鋼規(guī)格不小于 25 25 3mm,圓鋼不小于 φ 8。 支架與吊架在安裝時(shí)應(yīng)掛線或彈線找直 ,用水平尺找平 ,以保證安裝后橫平豎直。 鋼結(jié)構(gòu) :可將支架或吊架直接焊在鋼結(jié)構(gòu)上 ,也可用萬(wàn)能吊具進(jìn)行安裝。 橋架與電氣柜、箱、盒接茬時(shí) ,進(jìn)線和出線口處應(yīng)用抱腳連接 ,并用螺絲緊固 ,末端應(yīng)加裝封堵。 電纜橋架在穿過(guò)防火墻及防火樓板時(shí) ,應(yīng)采取防火隔離措施 ,具體做法見(jiàn)圖 52圖 527和相關(guān)國(guó)標(biāo)圖集。 技術(shù)交底記錄 編號(hào): 4 注 :。 ≥ 24cm。 技術(shù)交底記錄 編號(hào): 5 :Ⅰ型一 320 120 2Ⅱ型一 160 120 2Ⅲ型一 160 75 25。鍍鋅制品的橋架搭接處用螺母、平墊、彈簧墊緊固后可不做跨接地線。 橋架在建筑變形縫處要做跨接地線 ,跨接地線要留有余量 ,跨接地線截面按下表選擇。 在有腐蝕或特別潮濕的場(chǎng)所宜選用塑料護(hù)套電纜。 電纜在橋架上可以無(wú)問(wèn)距敷設(shè) ,應(yīng)分層敷設(shè)且排列整齊 ,不應(yīng)交叉。標(biāo)記應(yīng)清晰齊全 ,掛 裝整齊。 五、 成品保護(hù) 室內(nèi)沿橋架或托盤(pán)敷設(shè)電纜 ,宜在管道及空調(diào)工程 基本施工完畢后進(jìn)行 ,防止其他專(zhuān)業(yè)施工時(shí)損傷電纜。 六、 應(yīng)注意的質(zhì)量問(wèn)題 沿橋架敷設(shè)電纜時(shí) ,應(yīng)防止電纜排列混亂 ,不整齊 ,交叉嚴(yán)重。電纜敷設(shè)時(shí) ,應(yīng)敷設(shè)一根整理一根、卡固一根。在電纜橋架施工時(shí) ,應(yīng)事先考慮好電纜路徑 ,滿足橋架上敷設(shè)的最大截面電纜的彎曲半徑的要求 ,并考慮好電纜的排列位置。進(jìn)入現(xiàn)場(chǎng)應(yīng)戴安全帽。使用單梯上端要綁牢 ,下端應(yīng)有人扶持。打眼時(shí) ,要戴防護(hù)眼鏡 ,工作地點(diǎn)下方不得站人。 to implement , do not want to, dare not, not with disciplinary ruler to supervision。 not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers。 not unrewarding perfunctorily, but calm attitude of life of unrestrained selfconfidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will not good things to erase the, life is a When no movie, pain is a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, a thing figured is heaven, think impassability is hell. Since the living, to live better. Sometimes we because of too narrowminded, too care around the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, pletely depends on how we look at and deal with it. Don39。t get into a blind alley, don39。t be narrowminded. Poke to care, is a kind of 技術(shù)交底記錄 編號(hào): 10 openminded, a free and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to treat people。m afraid he turned to it as a joke to tell don39。 and when we are in a negative state of mind, you will find many depressed things。 loss of sink, Eritrea pany. When you are in adversity, may wish to change a point of view to think everything over to the good Think, because good mentality decided the fate of the! 7, people are tired, rest。 you pain, no one can understand. Then you only tears to smile. 8, each people have youth, Each youth are a story, the life of the world never gets easier, I want what, wish the world all know, as has been the same。s mouth, because words will reduce its 技術(shù)交底記錄 編號(hào): 11 importance。t envy who. Like a person is a kind of feeling, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best travel life is that you in a strange place found a long lost touched. 11, happy life not in the bustling in, and in the peace of mind。am, like a movie, learn to appreciate, learn to be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one。t envy him A sum of, don39。t let everyone like you, so also do not want to do. Life is too short to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to 技術(shù)交底記錄 編號(hào): 12 go. A wounding elegant people, the key is to control their own emotions. With the mouth is the most stupid behavior. A control negative emotions than a can take a city more powerful water flow slow, language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shut up. That is a kind of ability, that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an eyeful of tears, there is no trace of emotion, there is no gleam of hope, no desire, no action, no static, there is only one kind of downward sinking feeling, sink A murky? 6? 7? 6? 7 sink? 6? 7? 6? 7 toward the bottom of the sink. 17, in some way, do not go, you will not know the other side scenery is beautiful. To you is not good, you do not mind too much,
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