How to Wire the Underwater Spotlight
Underwater lamp is a kind of underwater lamp manufactured by using LED technology. Compared with traditional underwater lamps, LED underwater lamps are more energy-saving and environmentally friendly, and the lights are changeable and more decorative, so they are widely used in various landscape lighting systems.
Safe installation of underwater lamps should be accomplished:
Firstly, for the selection of lamps, we should pay attention to the waterproofness, power supply voltage and power consumption of single lamps.
Secondly, calculating the cable diameter: generally the underwater lamp uses low voltage safety voltage, which involves low voltage and high current power supply will affect the voltage drop of the line, we must first calculate the voltage drop at the end of each line, and leave the redundancy in advance.
Thirdly, the isolation transformer and leakage switch powered by underwater lamp must be arranged outside zone 2 in order to avoid electric shock accident.
Fourth: whether it is open (bracket type underwater lamp) or installation (embedded underwater lamp) should reserve 0.6-1 meter long cable, so as to avoid future lighting problems, need to release the water in the pool, so that even if the lamp is broken, from the water can be raised to the water surface to replace wiring and wiring for waterproofing treatment;
Fifth: As for other wiring, wiring joints do waterproof, General Hydropower workers, decoration workers can basically deal with it!
Special attention should be paid to some problems in the installation of LED underwater lamps:
1. The underwater LED lamp should be supplied by DC constant current power supply. Under the control of constant current power supply, the forward voltage drop of LED wall lamp, LED spotlight, LED underwater lamp and LED buried lamp will decrease with the increase of the temperature of the LED chip, which has little effect on the underwater LED lamp. But if it is driven by constant voltage, the chip of the LED underwater lamp will increase continuously with the increase of temperature and current. In serious cases, it may even burn the LED underwater lamp. Therefore, the underwater LED lamp should be powered by DC constant current power supply.
2. Anti-static measures should be taken. In the process of processing, production and installation of LED underwater lamp products, certain anti-static measures should be adopted, such as: the worktable should be grounded, workers should wear anti-static clothing, anti-static rings, and anti-static gloves, etc. Conditional anti-static ion blower can be installed, but also to ensure that the air humidity is about 65%, so as to avoid excessive drying of the air to generate static electricity. In addition, the anti-static ability of different quality grades of LED is also different, and the anti-static ability of high-quality underwater LED lamps is stronger.
