2014年12月24日星期三

Cable, bus bar installation does not conform to the requirements analysis of the causes

 iron motor shell motor parts pig casting iron 
Specifications
1.iron or steel 
2.sand casting 
3.ISO,UL,FM,LPCB,VDS,TS16949 
4.timely delivery 
5.reasonable price
Root cause analysis (1) not serious water pump price when, civil construction unit construction; Prefabricated concrete stent aging or no reinforced bone, electric motors so that the tolerance is not enough. (2), cable groove without certain slope, there is no according to the specification for sump; The objective conditions did not meet the requirements of drainage. (3), installation of construction personnel is not strong sense of responsibility, have other professional influence cable pipe laying a pipe or well. (4), not in detailed row according to the requirement of the camp, detailed weld the ends of the earth, to finish all buried pipe three phase induction motor welding when the condition has not allowed one 3 phase induction motor by one again, had to in the bell mouth ac synchronous generator welding requirements. 3, preventive measures (l), and construction units in the installation of concrete, should stay leveling, looking for vertical; One of the most upper bracket to trench roof distance is 150 mm - 150 mm, the bottom bracket to ditch distance of 50 mm - 100 mm. Should be the qualified manufacturers purchase qualified concrete support, ensure adequate supporting force; Good anti-rust anti-corrosion guarantee steel stents. 


3 Phase induction Electrical Motor MS Series for winding machine

Specifications
ambient temperature:-15 -40 
above sea level : not exceed 1000m 

rated voltage:+-5% 
(2), according to GB50054-95 specification for design of low-voltage distribution of relevant provisions, in cable trench drain at the bottom of the slope should not be less than 0.5%, and small diesel engine a sump, and water directly into the sewer; Sump reference architecture related specifications, can also refer to lue guang at atlas of building electric installation engineering of the second edition, volume 1, 5 to 35 "cable manhole well general practice? Quot;. When the sump well away from the rain or the rain well elevation above the cable groove, the corresponding drainage system should be the corresponding adjustment. Therefore, comprehensive network diagram came outside to carefully compare various professional level. (3) city, require uniform neat, no crack. Cable pipe embedded below to ensure that the depth of 0.7 m, such as the objective condition can't meet, need to make a cement mortar coating tube above, to ensure that the pipeline is not crushed. (4), cable pipe with thick wall copper tube, inside and outside all should besmear brushs anticorrosive antirust paint or high build asphalt, paint should be uniform; especially the welding joints, more should be antirust processing. Two cable tube, tube mouth should be aimed at, and then add a short sleeve length (not less than 2.2 times of the cable pipe diameter) is firm and seal welding. (5), in cable trench in the shoulder steel grounding installation wants firm, generally every 0.5 0.5 m to install a generator set fixed terminal, high bottom height is 250 mm - 300 mm. When maintained acmotor2.blogspot.com by tube, separately with various steel pipe lap, lap it anticorrosion treatment. In order to ensure that every steel pipe with reliable grounding pole lap, when the buried pipe by welding, are not allowed to bury tube after welding.

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