The light source and electrical components are installed in the light source chamber and electrical chamber of the lamp, with a shell made of cast steel, which is sturdy and impact-resistant; meticulous optical design allows for long projection distances; the integration of light source and electrical components makes installation and use convenient. The light source uses new LED technology, which has a long lifespan, good color rendering, no flicker, and energy-saving features; dgc can start instantly under low temperature and undervoltage conditions, making it an ideal technical product for improving lighting conditions and ensuring safe production in coal mines.
Main Uses and Applicable Scope
The lamp is used in underground coal mines where there is a risk of gas (methane) and coal dust explosions. It is mainly suitable for lighting in mining work faces.
2. Design Requirements for the Lamp
2.1 dgc Installation Requirements: Various installation methods such as U-shaped brackets and suspension rings.
2.2 dgc Shell Requirements: The shell is made of die-cast aluminum, with ribs designed using aerodynamic optimization, and the surface is treated with high-pressure electrostatic spraying. All exposed fasteners are made of stainless steel. The lamp has strong waterproof performance, is dustproof, and explosion-proof, making it suitable for use in underground coal mine tunnels.
2.3 dgc Drive Requirements: The lamp driver adopts a wide voltage design, AC 95-242V. It meets the voltage requirements for mining as per GB3836 and can be safely used in environments with coal safety requirements above ground, with the driver designed to be gel-sealed.
2.4 Light Source Requirements: Imported CREE original LED light source from the USA, with a lifespan of 50,000 hours or more, and light efficiency reaching 142lm/W. When installed at a height of 3m, the vertical illuminance reaches 75Lx.
2.5 Internal Structure Requirements: A quick-plug interface is used between the driver and the light source, eliminating the need for welding operations. The connecting wires inside the lamp should be made of copper, and terminal blocks are used for wiring inside the lamp, with a dedicated grounding terminal.
2.6 Incoming Line Design: The lamp adopts a dual incoming line design with one entry and one exit, equipped with a cable clamp and sealed joint. The incoming line thread is G3/4".
2.7 Lamp Certification: The lamp must provide explosion-proof certification and safety standard certificates applicable to national standards.

Applicable Scope

Suitable for underground mining activity faces and the connected tunnels. Based on the relevant standards of GB3836, MT221, and the "Coal Safety Regulations."

 

Product Features

1. Structure: The lamp consists of a transparent cover, light-emitting diodes, power driver, explosion-proof housing (the housing is made of ZG450 steel casting), and terminal board.

The explosion-proof housing is divided into two parts: the main chamber contains LED light-emitting diodes and the corresponding power driver. The wiring chamber contains the terminal board, and the lead device consists of M36 horn-type compression nuts, sealing rings, and blocking plates.

2. High Light Emission Efficiency, Green and Environmentally Friendly

The lamp uses energy-saving, environmentally friendly LED light-emitting diodes as the light source, with light efficiency ≥90Lm/W, which is about 10 times that of incandescent lamps, showing significant energy-saving effects. The LED light source contains no harmful substances like mercury, does not emit infrared or ultraviolet components, and does not pollute the environment.

3. Long Ignition Lifespan, Basically Maintenance-Free

The LED light source used in the lamp has an ignition lifespan of over 50,000 hours, which is more than ten times that of ordinary fluorescent lamps, making it basically maintenance-free.

4. Easy Installation

Main Technical Parameters

Serial Number	Name	Unit	Parameter
1	Input Voltage	V	AC85-265V 50Hz/60Hz
2	Rated Voltage	V	AC127V 50Hz
3	Lamp Power	W	22
4	Luminous Flux	Lm	≥2600
5	Illuminance at 2 Meters	Lx	≥200
6	Light Source Lifespan	H	100000
7	Color Temperature	K	3000K/4500K/6000K
8	Power Factor	%	≥92
9	Installation Bolt	M	10-12
10	Installation Spacing	mm	95-150
11	Overall Dimensions	mm	318×201×180
12	Incoming Cable	mm	Φ10～Φ23
13	Lamp Weight	kg	8
14	Explosion-Proof Mark	GB	Exd I Mb

 

The light source and electrical components are installed separately in the light source chamber and the electrical chamber of the fixture. The shell material is cast steel, which is sturdy and impact-resistant. With careful optical design, the projection distance is far. The integration of the light source and electrical components allows for convenient installation and mobility.