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电气埋管施工工艺细则
Electrical con duit con struct ion tech no logy rules
1. 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 con duit is not allowed used; the mouse of the
con duit as the inner part the debris must be removed before bending or in stallati on
，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 tilt; burring after cutting must be
immediately, 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 ° elbow; conduit bending cannot
appear 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 each con duit elbow shall not exceed 3, elbow with 90 shall not be more tha n 2 the