电气预埋规范

1、百度文库电气埋管施工工艺细则Electrical con duit con struct ion tech no logy rules1. 严禁使用电焊、气焊割管。Strictly prohibited in using gas and electric welding cutting conduit.2. 严禁将脚手架作为电缆管使用。Strictly prohibited in using the folder as electrical conduit.3. 锈蚀严重的钢管不得使用；钢管弯制或安装前应将管口及管内杂物清扫干 净，并除去毛刺。Exist serious corrosi on

2、con duit is not allowed used; the mouse of thecon duit as the inner part the debris must be removed before bending orin stallati on3. 电缆管切割采用手工锯或切割机进行切割，并保证切割面平整且不倾斜；切 割后必须立即将管口毛刺打磨干净，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 not t

3、ilt;burring after cutting must beimmediately, and polished type no zzle into horn.4. 电缆管的弯曲半径R> 10D （电缆管外径）；弯曲角度90°,并尽可能减少 90°弯头；电缆管弯制不得出现明显的凹瘪、裂纹、折皱，钢管弯扁程度w（电缆管外径）。Bending radius R > 10D （here D is con duit out diameter）;Be nding An gle> 90 ° , and as less as possible the 90

4、° elbow; conduit bending cannotappear obvious con cave, crack, wrin kle, flat steel tube bending flat level w D （here D is con duit out diameter）.6 电缆管安装时，每根电缆管弯头数量不得超过3个，90°弯头不得超过2个（埋管长度12米，不得多于2个弯头；12米埋管长度8米，不得多于3个弯头；直管埋设不得大于30米）超过上述标准须增加转接盒。Whe n in stallati on con duit, the amount of e

5、ach 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 bemore tha n three elbow;straight shall not be more tha n 30 meters；If excee

6、d the sta ndard more tha n the sta ndard must in crease the tran sfer box.7 电缆管连接不得对接焊，必须采用短套管；套管长度 50mm；when conduit connection a short socket must be used, and no butt welding ( except spot welding) ； the length of the socket more than 2 times of conduit out diameter.电缆管型 号Type壁厚(mm)Thick ness电缆管外

7、径(mm)Out diameter.连接套管内径(mm)Socketi nnerdiameter连接套管的长度(mm)Len gthDN2535> 50mmDN3243> 50mmDN506061> 50mmDN8048889> 50mm8电缆管连接时，先将套管中间凸台毛刺打磨干净，然后将电缆管插入套管中， 电缆管与凸台之间不得留有间隙；连接套管与电缆管两侧均匀电焊4点，并用黑胶布缠绕封实；When coupling, there shouldn' t gap between the two conduit and thecounterpart malocclu

8、sion is less than 2 mm, counterpart seam should bein the middle of the socket, and the both sides along the circumferentialwelding sealing, partial cannot welding must use black tape windingseali ng with faste ned iron wire;9一电缆管不得在外壁直接点焊加固，加固采用铁丝绑扎或煨制钢筋成环钩加固、I 切割2030mm套管套至固定点进行，固定间距：© 15©

9、 20为米，© 25© 32 为米，© 40 50为米，© 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 ther one stable point oriron wire colligati

10、onfixed spaci ng:© 15mm 20mm is m, from 25mm to 32mm is meters,40mm 50mm is meters, exceed 65mm not more tha n 3 meters10电缆管与接线盒的连接可采用焊接和丝扣连接，:电缆管伸入接线盒36mm 管口用黑胶布包扎结实，接线盒内用湿棉纱、破布填实；外部用黑胶布缠绕，以防止水泥沙浆进入。Weldi ng and threaded can be used for the connection betwee n electrical conduit and sockets, e

11、lectrical 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 tapewinding, in order to preve nt ceme nt mortar hav ing a access in to.11 接线盒安装时必须与模板紧贴，并用钢筋在接线盒四周加固；电缆管直径w

12、DN25的指明及消防报警预埋管放置于模板与钢筋网之间，预埋管绑扎在钢筋网 上，与模板之间预留间隙15m m；电缆管在接线盒处的固定点与接线盒间距不 得大于200mm。Socket must be clingy to the template and reinforced around, between the electrical conduit and template reserved clearance 15 mm or more. into the sockets of the cable must be welding with a cross bar (from 6 or 8mm

13、round steel;12.所有外露预留的电缆管及伸入分电箱、木制接线盒等管口应伸出砼面 200mm 以上，电缆管口必须封堵。续接管路用胶布封口后加套帽。All the reserved outside electrical conduit and those into the distributi on box, and woode n box should stretch out the con crete over 200mm, adding iron plate welding seal, steel plate with cutting machine and smooth. Th

14、e continued jacketed pipe set a cover after sealing with tape.13 电缆管过缝制作：采用在电缆管外 套比电缆管外径大两级套管，套管与电 缆管口部密实封堵，电缆管套管制作规格，长度如下：Manu facture for expa nsion joint, adopt ing the two levels of cas ing pipecoat than electricalconduit diameter, first winding linen between casingand electrical conduit then fi

15、lling with asphalt close-grained,Specifications, the length is as follows:电缆管型 号Type壁厚(mm)thick ness电缆管外径(mm) out diameter过缝套管规 格specificati on过缝套管内 径(mm) Innerdiameter过缝套管的 长度（mm）len gth© 2533. 5© 4041600 © 3242. 3© 5053800© 5060© 801200 © 80488. 5© 125131180

16、014.同一处电缆管超过3根，出砼必须排列整齐、美观（横平竖直 ）;图纸没 有明确要求时，按下述原则排列：（1）:电缆管由大到小顺序排列；（2）: 39根 可排列成一排或两排；（3）: 10根及以上必须排列成两排或两排以上，且每排宽度大致相当，宽度相差宜小于两根埋管的直径；(4)成排电缆管预留高度(或长 度)一致。There are more tha n three con duit at a same place, the out ing con cretemust 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