1. The material is not up to par
Judging from the failure situations handled in recent years, the low quality of materials is also a big factor. The main manifestations are: the wire contains less aluminum, the wire is relatively hard, and the insulation layer is thin. This has become more common in recent years.
2. Poor construction quality
Failures caused by construction quality account for a large proportion. Main performance: First, the depth of the cable trench is not enough, and the sand cover brick is not constructed according to the standard; Second, the production and installation of the aisle pipe did not meet the requirements, and the two ends were not made into mouths according to the standards; The third is to drag on the ground when paving the cable; Fourth, the embedded pipe of the foundation is not constructed according to the standard requirements, mainly because the embedded pipe is too thin, coupled with a certain bend, it is quite difficult to pass through the cable, and there is a "dead bend" at the bottom of the foundation; Fifth, the thickness of the wire nose crimping and insulation wrapping is not enough, and it will be short-circuited after long-term operation.
3. The quality of supporting projects is not too hard
Lawn light cables are generally laid on the green garden light foundation belt. The poor quality of sidewalk construction and the sinking of the ground deformed the cable by force, resulting in the cable armoring. Especially in the northeast region is in the cold area, winter comes, so that the cable and soil form a whole, once the ground settles, it will be strained at the bottom of the lawn lamp foundation, and in the summer when there is more rain, it will burn off at the root of the foundation.
4. The design is unreasonable
On the one hand, there is overload operation. With the continuous development of urban construction, lawn lights also continue to extend, new lawn lights often close to which lawn lights, which circuit to receive, coupled with the rapid development of advertising in recent years, the load of advertising is also correspondingly connected to the lawn lights, so that the load of lawn lights is too large, the cable is overheated, the wire nose is overheated, the insulation is reduced, and there is a ground short circuit; On the other hand, the design of the lamp pole only considers the situation of the lamp pole itself, ignoring the space of the cable head, after the cable head is wrapped, most of them can't even close the door, sometimes the cable length is not enough, the joint production does not meet the requirements, which is also the factor that causes the failure.
