What method of wiring underwater lamp will not enter the water to burn it?
Some attention should be paid to the installation of the LED underwater lamp:1 、 LED underwater lamp should be powered by DC constant current power supply. In the constant current power supply under the control of LED wall lamp, LED lamp, LED underwater lights, LED lights buried according to the pressure drop increases with the temperature of LED chip becomes smaller, so the situation is not too large for LED underwater lights. But if it is a constant voltage drive, it will cause LED underwater lamp chips to increase with the temperature, the current is increasing, and in serious cases may even destroy the LED underwater lamp. Therefore, the LED underwater lamp should be powered by DC constant current power supply.2, need to do anti-static measures. LED underwater lamp products to adopt certain anti-static measures, in the process of production and installation such as bench to ground, workers should wear anti-static clothing, anti-static ring belt, and belt of anti-static gloves, conditions can install electrostatic ion wind machine, but also to ensure the installation the air humidity is about 65%, in order to avoid the air is too dry to produce static electricity. In addition, different quality grades of LED anti-static ability is not the same, the quality of high grade LED underwater lamp antistatic ability better.
I took submersible pumps, wires, underwater work for four years, so far normal. My method is to select the round cable as the power cord because the circle is well sealed. Wiring, put an end to the phenomenon of electric heating, use PVC waterproof adhesive tape tightly wrapped more than 10 laps, must tightly tie. Then I use geliahao glue, daub on the interface and the nearby, formed a new layer of insulating layer, must not be missed, and can be painted over several times. (if only PVC tape is used, water will still enter if the time is too long)
Pay attention to the sealing of LED products. No matter what kind of LED lighting products, as long as the outdoor applications are faced with moisture and sealing problems, for LED underwater lamps, the situation is even more so. The poor sealing problem will directly affect the service life of LED underwater lamp products.
See what you use the lamp, if ordinary lamp (not recommended for high heat lamp) can be used to self-adhesive plaster cap and bulb and wiring are all wrapped outside, add a layer of PVC tape can be, remember must be wrapped tightly. If you are using a waterproof lamp, then according to the above method to handle the underwater wire connector is good. Conditional waterproof junction box can also be.
Safety installation underwater light should be done:First: first of all, for lamp type selection, we should pay attention to the water resistance of the lamp, the power supply voltage and the power consumption of the single lamp;Second: Calculation of cable diameter: General underwater lights are low safe voltage, this involves the low-voltage high current power supply will affect the line pressure drop, must first calculate the pressure drop of each end of the line, stay ahead of good redundancy;Third: the underwater lamp power supply isolation transformer and leakage switch must be arranged outside the 2 District, so as to avoid electric shock accident;Fourth: whether it is installed (scaffolding underwater lamp) or installation (embedded underwater lamp) should be reserved for cable 0.6-1 meters long, to avoid future lighting problems, need to drain the water in the pool, so even if the lamp is broken, the water can be referred to the surface waterproof lamp with the change wiring and wiring;Fifth: as for other wiring, wiring joints do waterproof, general water electrician, decoration workers can basically deal with!
