Before installation, **shockproof floodlights** must be inspected against the nameplate and product specifications. This includes verifying the type, classification, protection level, and mounting method of the lamps. The fastening requirements and the integrity of the housing’s sealing components should also be checked. During installation, the luminaire must be securely fixed, and bolts should not be replaced with non-standard ones. Spring washers must remain intact, and dust-proof and waterproof seals should be in place as originally provided. When cables are introduced into the unit, they should fit snugly with the sealing gasket. The cable end should be smooth and round, with no surface damage or roughness. Extra cable entries must be sealed according to the explosion-proof rating, and the compression nut should be tightened properly to ensure a secure seal.
In routine maintenance, several key points must be observed. **Earthquake-resistant floodlights** should ideally cut off power automatically before being opened, but due to the complexity of implementing such interlocks, most units only have warning labels like “No Live-on†on the enclosure. Even after power is turned off, the bulb surface can remain hot, posing a risk of igniting flammable gases if the lampshade is opened too soon—especially in flameproof designs. Therefore, for **shockproof floodlights** that allow quick access to the cover, caution is essential during maintenance.
When replacing a lamp or tube, take care to avoid damaging the components. After cleaning, apply phosphatizing paste or 204-1 anti-rust oil to the surface, and do not paint over it. Rust should be avoided; if minor rust occurs, it should be cleaned thoroughly without causing pitting. The dust and water seals must remain undamaged, as this is critical for increased safety lighting. If a seal is seriously damaged, replace it with an identical one, and consider replacing the entire unit if necessary. Always check the lampshade for cracks or damage and replace it immediately if broken.
Portable floodlights come in two types: those powered by a grid supply and those with internal batteries. For grid-powered lamps, use rubber-sheathed cables between the explosion-proof junction boxes or plugs and the light itself. The grounding or neutral connection must be within the same sheath, and the cable should meet the minimum allowable cross-sectional area—typically 25 mm² YC or YCW heavy-duty rubber cables. A crucial point: no intermediate connectors are allowed in the cable used for portable lighting.
An incident once occurred during an ethylene pump repair when a temporary lamp was used. The lamp was rated for dIICT4 explosion protection, but the cable had a connector 15 meters away from the lamp, wrapped in insulating tape. As the cable was dragged along the ground, the core became exposed. When the worker raised the lamp to inspect the pump, the exposed wire touched the steel channel, igniting the leaking ethylene gas. Although the lamp passed explosion-proof tests, the issue was the damaged cable. This accident revealed serious gaps in our explosion-proof safety management. Following the incident, all portable lights and their cables were thoroughly inspected to eliminate similar risks. It serves as a powerful reminder that in explosion-proof electrical safety, we must never rely on luck—we must strictly follow regulations and procedures to prevent accidents at all costs.
Bicycle Aluminum Profiles,Standard Aluminium Extrusion Profiles,Extruded Aluminum Profile,Black Anodized Aluminum Profile
Guangdong Jihua Aluminium Co., LTD , https://www.jihua-alu.com