1. Poor construction quality courtyard engineering lights
Faults caused by construction quality account for a larger proportion. Main manifestations: First, the depth of the cable trench is not enough, and the construction of sand-covering bricks is not carried out according to the standard; the second is that the production and installation of the aisle pipe does not meet the requirements, and the two ends are not made according to the standard. Dragging on the ground; Fourth, the embedded pipe of the foundation is not constructed according to the standard requirements, mainly because the embedded pipe is too thin, plus a certain degree of curvature, it is quite difficult to pass the cable, and there is a "dead bend" at the bottom of the foundation; It is because the thickness of the wire nose crimping and insulation wrapping is not enough, it will short-circuit between phases after a long time of operation.
2. The materials are not good enough
Judging from the failures handled in recent years, low material quality is also a major factor. The main performance of courtyard engineering lights is: the wire contains less aluminum, the wire is relatively hard, and the insulation layer is thin. This situation has become more common in recent years.
3. The quality of supporting projects is not too hard
Garden engineering light cables are generally laid on the sidewalk. The construction quality of the sidewalk is poor, and the ground sinks, which causes the cable to be deformed by force, which leads to the cable armor. Especially in the northeast region, which is in the high cold zone, the winter comes, so that the cables and the soil form a whole. Once the ground subsides, it will be strained at the bottom of the courtyard engineering light foundation, and in summer when there is a lot of rain, it will burn at the foundation root.
4. Unreasonable design
One aspect is overload operation. With the continuous development of urban construction, courtyard engineering lights have also continued to extend. When courtyard engineering light manufacturers build courtyard engineering lights, they are often close to which courtyard engineering lights are connected to which circuit. In addition, the advertising industry has developed rapidly in recent years. The load is also connected to the courtyard engineering lights accordingly, so that the load of the courtyard engineering lights is too large, the cable is overheated, the wire nose is overheated, the insulation is reduced, and the grounding short circuit occurs; on the other hand, only the light pole is considered in the design of the light pole In its own situation, the space of the cable head is ignored. After the cable head is wrapped, most of the doors cannot be closed. Sometimes the cable length is not enough and the joints do not meet the requirements. This is also the cause of the failure.