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Types of Explosion-Proof Lighting Fixtures

Lighting fixtures are indispensable in our lives and workplaces, and this is true for explosion-proof lighting fixtures as well. The development of explosion-proof lighting hinges on safety and applicability across various industries, making their types quite complex and varied. So, what types of explosion-proof lighting are there? Let’s delve into this together.

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Installation Types:

There are generally three installation methods for explosion-proof lights: fixed, movable, and portable. Fixed installation provides stable lighting for users, movable lights offer flexible illumination in various work settings due to their mobility, and portable lights are designed for environments with unstable or limited power supply.

Explosion-proof Forms:

Like other explosion-proof electrical equipment, explosion-proof lights can have multiple forms of protection, mainly five types (flameproof, increased safety, positive pressure, non-sparking, dust-proof). However, explosion-proof lights have more than these five forms due to their broad application range. Another special form is the composite type, designed by combining various explosion-proof methods.

Enclosure Protection Ratings:

The protection ratings of explosion-proof electrical equipment, including lighting, vary based on manufacturing processes. Explosion-proof lights are categorized into dust-proof (six levels) and waterproof (eight levels) based on their protection performance.

Electric Shock Protection:

Electric shock protection is broadly classified into three categories. The first type connects easily accessible conductive parts to the protective grounding conductor in the fixed wiring, preventing these parts from becoming live if the basic insulation fails. The second type employs double or reinforced insulation without protective grounding, relying on installation measures for protection. The third type doesn’t require grounding or leakage protection, usually operating at safe voltages below 36 volts.

Mounting Surface Materials:

Based on the mounting surface materials used in their design, indoor explosion-proof lights can be installed on common combustible materials like wooden walls or ceilings. They are designed to prevent the mounting surface temperature from exceeding safe values. Depending on their suitability for direct installation on ordinary combustible materials, they are divided into two categories.

This concludes our introduction to the types of explosion-proof lights. Want to learn more about explosion-proof lighting? Stay tuned!



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