1.For the selection of lamps, attention should be paid to the waterproof, power supply voltage, single lamp power consumption;
2. Calculate the cable diameter: general underwater lights are using low voltage safety voltage, which involves low voltage and large current power supply will affect the voltage drop of the line, must first calculate the voltage drop at the end of each line, leave good redundancy in advance;
3. The isolation transformer and leakage switch of the underwater lamp power supply must be arranged outside the 2 zone, so as to avoid electric shock accidents;
4.Whether it is installed (support type underwater light) or dark (embedded underwater light) should be reserved 0.6-1 meters long cable, so as to avoid the future lamp problems, need to let go of the water in the pool, so even if the lamp is broken, from the water can be mentioned to the surface of the lamp to change wiring and wiring to do waterproof treatment;
Fifth: As for other wiring, wiring joints do waterproof, general water electrician, decoration workers can basically deal with!
Some problems in the installation of LED underwater lights need special attention:
1, LED underwater lights should use DC constant current power supply. Under the control of constant current power supply, the downward pressure drop of LED wall washing lamp, LED projection lamp, LED underwater lamp and LED buried lamp will decrease with the increase of LED chip temperature, which does not have much impact on LED underwater lamp. However, if it is driven by constant voltage, it will cause the chip of the LED underwater lamp to increase the current as the temperature rises, which may even burn the LED underwater lamp in serious cases. So LED underwater lights should use DC constant current power supply.
2. Take anti-static measures. LED underwater light products in the process of processing, production and installation to use certain anti-static measures, such as: workbench to ground, workers to wear anti-static clothing, with anti-static ring, and with anti-static gloves, conditional can install anti-static ion fan, but also to ensure that the installation of air humidity at about 65%, so as to avoid the air is too dry static electricity. In addition, the anti-static capacity of LED of different quality grades is not the same, and the anti-static capacity of LED underwater lamp of high quality grade is stronger.
3. Pay attention to the sealing of LED products. No matter what kind of LED lamp products, as long as they are used outdoors, they are faced with the problem of moisture-proof and sealing, especially for LED underwater lights. The service life of LED underwater lamp products will be directly affected if the sealing problem is not handled well.
