電氣預埋規(guī)范

1、共享知識分享快樂電氣埋管施工工藝細則Electrical con duit con struct ion tech no logy rules1. 嚴禁使用電焊、氣焊割管。Strictly prohibited in using gas and electric welding cutting conduit.2. 嚴禁將腳手架作為電纜管使用。Strictly prohibited in using the folder as electrical conduit.3. 銹蝕嚴重的鋼管不得使用；鋼管彎制或安裝前應將管口及管內雜物清掃干 凈，并 除去毛刺。Exist serious corros

2、i on con duit is not allowed used; the mouse of thecon duit as the inner part the debris must be removed before bending or in stallati on3. 電纜管切割采用手工鋸或切割機進行切割，并保證切割面平整且不傾斜；切割后必 須立即將管口毛刺打磨干凈，并打磨管口成喇叭型。Cutting for the conduit adopting in manual saw or machine, and ensure the cutting surface smooth and

3、 not tilt; burring after cutting must be immediately, and polished type no zzle into horn.4. 電纜管的彎曲半徑R10D （電纜管外徑）；彎曲角度90。，并盡可能減少90°彎頭；電纜管彎制不得出現明顯的凹癟、裂紋、折皺 ，鋼管彎扁程度w0.1D （電纜管外徑）。Ben ding radius R > 10D （here D is con duit out diameter） ;Be nding An gle> 90, and as less as possible the 90elb

4、ow; conduit bending can notappear obvious con cave, crack, wrin kle, flat steel tube bending flat level w 0.1 D （here D is con duit out diameter）.6 電纜管安裝時，每根電纜管彎頭數量不得超過 3個，90°彎頭不得超過2個（埋管長度吃米，不得多于2個彎頭；12米埋管長度8米，不得多于3 個彎頭；直管埋設不得大于30米）超過上述標準須增加轉接盒。Whe n in stallati on con duit, the amount of each

5、con duit elbow shall not exceed 3, elbow with 90 shall not be more than 2；the con duit len gth > 12m, shall not be more tha n two elbow;The len gth of the con duit that cha nged betwee n 8m and 12m , shall not be more tha n three elbow;straight shall not be more tha n 30 metersIf exceed the sta n

6、dard more tha n the sta ndard must in crease the tran sfer box.7 電纜管連接不得對接焊，必須采用短套管；套管長度 50mm ；when con duit conn ection a short socket must be usedand no butt welding ( except spot welding) ； the length of the socket more than 2 times of conduit out diameter.電纜管型號Type壁厚(mm)Thick ness電纜管外徑(mm)Out di

7、ameter.連接套管內徑(mm) Socketi nner diameter連接套管的長度(mm)Len gthDN253.2533.535> 50mmDN323.2542.343> 50mmDN503.56061> 50mmDN8048889> 50mm8電纜管連接時，先將套管中間凸臺毛刺打磨干凈，然后將電纜管插入套管中，電纜 管與凸臺之間不得留有間隙；連接套管與電纜管兩側均勻電焊4點，并用黑膠布纏繞封實；When coupling, there shouldn ' t gap between the two conduit and the counterp

8、art malocclusion is less than 2 mm, counterpart seam should bein the middle of the socket, and the both sides along the circumferential weld ing seali ng, partial cannot weldi ng must use black tape winding seali ng with faste ned iron wire;9電纜管不得在外壁直接點焊加固，加固采用鐵絲綁扎或煨制鋼筋成環(huán)鉤加固、I切割20-30mm套管套至固定點進行，固定間距

9、：© 15© 20為1.0-1.5米，© 25- ©32為1.5-2.0米，© 40© 50為2.0-2.5米，© 65以上不大于3米。Pot weldi ng rein force can ' t be allowed outside the wall of con duitdirectly, a available steel bar will be made into a ring hook, and thencutt ing 20 30 mm one end faste n to con duit ano t

10、her one stable point oriron wire colligati onfixed spaci ng:© 15mm 20mm is 1.0 1.0 m, from 25mm to 32mm is 1.5 1.5 meters, 40mm 50mm is 2.0 2.5 meters, exceed 65mm not more tha n3 meters10 電纜管與接線盒的連接可采用焊接和絲扣連接，:電纜管伸入接線盒36mm管 口用黑膠布包扎結實，接線盒內用濕棉紗、破布填實； 外部用黑膠布纏繞，以 防止水泥沙漿進入。Weldi ng and threaded can

11、 be used for the connection betwee n electricalconduit and sockets, electrical conduit are putted into the sockets 3 6 mmThe mouse of the conduit with black adhesive bandage, internal parts ofthe socket filled with a wet cotton yarn ,cloth;External with black tapewin ding, in order to preve nt ceme

12、nt mortar hav ing a access in to.11 接線盒安裝時必須與模板緊貼，并用鋼筋在接線盒四周加固；電纜管直徑WDN25 的指明及消防報警預埋管放置于模板與鋼筋網之間，預埋管綁扎在鋼筋網上，與模板 之間預留間隙15m m ；電纜管在接線盒處的固定點與接線盒間距不得大于200mm。Socket must be clingy to the template and reinforcedaround, between theelectrical conduit and template reserved clearance 15 mm or more, into the s

13、ockets of the cable must be welding with a cross bar (from 6 or 8mm round steel;12所有外露預留的電纜管及伸入分電箱、木制接線盒等管口應伸出磴面200mm以 上，電纜管口必須封堵。續(xù)接管路用膠布封口后加套帽。All the reserved outside electrical conduit and those into thedistributi on box, and woode n box should stretch out the con crete over 200mm, adding iron pl

14、ate welding seal, steel plate with cutting machine and smooth. The continued jacketed pipe set a cover after sealing with tape.13 電纜管過縫制作：采用在電纜管外套比電纜管外徑大兩級套管，套管與電纜管口 部密實封堵，電纜管套管制作規(guī)格，長度如下：Manu facture for expa nsion joint, adopt ing the two levels of cas ing pipecoat than electrical conduit diameter,

15、 first winding linen between casing and electrical conduit then filling with asphalt close-grained,Specifications, the length is as follows:電纜管型號Type壁厚(mm)thick ness電纜管外徑(mm) out diameter過縫套管規(guī) 格specification過縫套管內 徑（mm）Inner diameter過縫套管的 長度（mm）len gth© 253.2533. 5© 4041600© 323.2542.

16、3© 5053800© 503.560© 8080.5M200© 80488. 5© 125131180014 同一處電纜管超過3根，出磴必須排列整齊、美觀（橫平豎直）；圖紙沒有明確 要求時，按下述原則排列：（1 ）:電纜管由大到小順序排列；（2） ： 39根可排列成 一排或兩排；（3） : 10根及以上必須排列成兩排或兩排以上，且每排寬度大致相當，寬度相差宜小于兩根埋管的直徑；（4）成排電纜管預留高度（或長度）一 致。There are more tha n three con duit at a same place, the out ing con crete must be neat, beautiful (horizontal and vertical);Drawings without clear requirements, sorted by the following principles: (1) : from big to small order;(2) : 3 9 pieces can be arran ged in a