Solar LED lawn light common faults often come in two types. One is high impedance fault; the other is low resistance faults. The so-called high impedance fault happens when the cable is blown, instrument measuring resistance is large, or appear white or insulation deterioration, but there is a certain degree of resistance;-called low-impedance fault, that wires are shorted or shorted to ground completely, the current increases, power transmission occurs tripping.
These two faults and their frequent appearance pose a threat to the use of the device. Therefore, we must pay full attention, identify the causes and countermeasures.
Firstly, cable trench deep enough, sanding is not according to the standard cover brick for construction; Second aisle pipe fabrication and installation does not meet the requirements, the standard does not make ends loudspeaker mouth; Third pavement cable dragged on the ground; fourth is based embedded tube is not according to the standard requirements of the construction, mainly embedded pipe too small, plus a bend, when the cable is very difficult to wear, the base at the bottom of a 'dead corner' situation; five is the line the nose crimp and insulation wrapped thick enough, after a long run it will phase short circuit.
The low quality of materials is also a big factor. Main manifestations are: less aluminum wire, the wire is relatively hard, thin insulation. This situation is more common in recent years.
Solar LED lawn light cables are generally laid on the green belt. Especially in the alpine zone in Northeast China, the onset of winter, the cable and the soil to form a whole, the ground once the settlement, it will be pulled in the bottom of solar LED lawn light basis, while in the summer rain for a long time, will be in the basic roots blown.
On the one hand, with the continuous development of urban construction, solar LED lawn light has also been extended, the new solar LED lawn light from which the solar LED lawn light often close, they received a loop which, combined with advertising business has developed rapidly in recent years, ad loads are also connected to the solar LED lawn light accordingly light, so that the load is too large solar LED lawn light, cable overheating, overheating nose wire, insulation decreased, there is shorted to ground, etc.; the other hand, the poles designed only consider their own situation, ignoring the cable head space cable head wrapped after a good, mostly even the doors are not shut, sometimes the cable length is not enough, the joint production does not meet the requirements, which is caused by failure factor.
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