2012年05月28日

overload operation

Lawn lamp failure reasons


1, poor quality of construction


Because the construction quality caused by the failure of a larger proportion of. Main show is: a cable trench is deep enough, sand covered brick not according to standard construction; two is the aisle pipe production and installation requirements are not met, ends are not according to standard made a bell mouth; three paving cable when on the ground in tow; four is the basis of the embedded pipe is not in accordance with the standard requirements construction, is the main pipe is meticulous, coupled with a certain curvature,dab4c51ck wear when the cable is difficult, at the base of a " dead bent "; five is the line of the nose crimping and insulation wrapping thickness enough, after a long time will be running the interphase short circuit.


2, material does not pass


In recent years, treatment failure situation, material quality is low also has the very big factor. The main performance is: wire less aluminium wire, relatively hard, thin insulation layer. This condition is more common in recent years.


3, supporting engineering quality but hard


Lawn lamp cable general shop in the green belt. The poor quality of construction,solar panel ground subsidence, the cable force and deformation, resulting in cable armouring. Especially in the northeast area is in the alpine zone, the onset of winter, the cable and the soil to form a whole, ground once the settlement, will be in the lawn lamp base to be strained, and summer rain for a long time, will be in the basic root burn.


In 4, the unreasonable design


One aspect is the overload operation. With the continuous development of city construction, lawn lamp has been extended, new lawn lamp often from which lawn lamp, received which circuit, coupled with recent years advertising industry development is very rapid, advertising load are corresponding connected on the lawn lamp, lawn lamp so that the load is too large, superheated cable, wire nose overheating, insulation reduction,personal computer remote ground short circuit conditions; on the other hand, the design only consider the lamp itself, ignoring the cable head space, cable head wrapped later, majority is even the doors are shut, sometimes the cable length is insufficient, joint production does not meet the requirements, which is caused by fault factors.





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