Shenhai e fakamoʻoni fakaʻauha
Ngaahi maama ʻo e fakamoʻoni fakaʻauha, ko ha foʻi lea ʻoku ʻikai maheni mo e tokolahi, ʻOku tatataha ke fetaulaki mo ia ʻi he moʻui fakaʻaho ʻi ʻapi. ʻOku fakaʻaongaʻi ʻa e ngaahi maama makehe ko ʻení ʻi he ngaahi feituʻu lalahi, hange ko e ngaahi kulo lolo mo e ʻakau ʻo e kemikale, feituʻu ʻoku ʻi ai e ngaahi nāunau ʻoku velangofuá mo fakafepakiʻí. ʻOku kehe hono fokotuʻu ʻo e ngaahi maama ʻo e fakamoʻoni fakaʻauha mei he ngaahi foʻi ʻuhila angamaheni, and there are specific considerations to keep in mind during their use. ʻI he ʻAho ni, let’s discuss these aspects.
Before installing an maama ʻo e fakamoʻoni fakaʻauha, verify details from the nameplate and manual: the type, faʻahinga, maaka, group of explosion-proof, protection level of the casing, installation method, and requirements for fastening hardware. Ensure the light is securely fixed, with bolts and spring washers intact. Seals for dust and water resistance must be correctly placed. The cable entry must tightly fit the sealing gasket, be round and free of defects. Unused entries must be sealed according to the faʻahinga ʻo e fakamoʻoni fakaʻauha, with tightening nuts.
Ngaahi Founga Hono Folá:
Wall-Mounting:
Mount the light on a wall or support (ensuring the shading board is above the bulb), thread the cable through the joint, gasket, sealing ring to the junction box, leaving enough length for wiring, then tighten the joint and fixing screws.
Sloping Rod Suspension:
Pass the joint through the cable, screw it into the steel pipe, tighten the fixing screws, thread the cable through the gasket and sealing ring to the junction box, leave enough cable for wiring, screw the light into the joint ensuring the junction box is facing downwards. Adjust the copper joint and steel pipe to position the shading board above the bulb, hili ia pea fakamaʻu ʻa e sikalu.
Vertical Rod Suspension:
Similar to the sloping rod method, but with vertical positioning of the rod.
Taumuʻa ʻo e ʻaofi:
Screw a 3/4 inch conversion joint into a pendant conversion joint, then thread the cable through, mount it on the ceiling, and follow the same cable threading and tightening procedures as before.
Installation Steps:
1. Identify the location and measure the distance from the light to the power source. Prepare a three-core cable of appropriate length, ensuring it’s longer than the distance.
2. Connect the wires by opening the lamp’s rear cover, threading one end of the cable, and connecting the live, neutral, and ground wires. Distinguish between neutral and ground for safety. After connections, secure the cable with special tools and close the lamp cover.
3. Test the lamp by briefly connecting it to the power source. If the lamp doesn’t light up within 5 sekoni ʻe, disconnect and recheck the wiring.
These guidelines aim to provide a basic understanding of installing explosion-proof lights safely and correctly.