What needs attention in the wiring of outdoor landscape lights

1. The safety protection and grounding of outdoor landscape lights and street lights are mainly considering the longer power cords of night lighting projects such as parks and overpasses. It is not economical to use a safe voltage power supply. Normal power supply. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e 2. The two grounding systems must be electrically separated and must be kept at a certain distance underground, otherwise the two grounding systems should be formally separated, but the actual (called electrical) is still not separated. Moreover, even in severe cases, the two electrical systems will generate strong interference through the mutual connection of grounding equipment, so the two grounding systems may not work properly. This example is very common in actual work. In some places, the distance between two grounding systems is only 5m, which is usually not enough. In practical applications, at such a close distance, it is found that mutual interference is still great. Tests show that in the case of a single ground electrode, only 20m from the ground electrode can be regarded as zero potential. When the grounding system is multiple grounding poles or even grounding grids, the zero potential at a specified distance of 20m may still be very small, but for general engineering, when the two grounding systems are 20m apart, the mutual influence is only handled properly It is already very fragile and can work normally. u003cbru003e u003cbru003e u003cbru003e 3. Since the sensitivity of the single-phase short-circuit protection of the TT system is lower than that of the TN system, fuses and circuit breakers will refuse to operate from time to time, resulting in danger to exposed conductive parts. The voltage is close to 110V for a long time. Use residual current to operate the protection device. It can greatly improve the sensitivity of the TT system's contact protection, making the TT system more secure and reliable. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e 4. This article stipulates that the lightning protection of night scene lighting equipment shall comply with the current relevant national standards. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e 5. This article aims to prevent the danger of unintentional or unconscious contact with unrelated persons. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e 6. The transformer used in neon lights is a special transformer different from other types of lighting. The transformer must provide a high voltage of 10,000 to 15,000V to decompose the gaseous medium in the neon glass tube so that the tube starts to discharge and emit light. Therefore, there are special regulations on the high-voltage wiring and connecting wires of the transformer, the distance between the wiring, the installation position of the neon lamp, the lamp tube bracket and the light box materials, etc., which must be strictly implemented to ensure safe use.