Explosion proof luminaires in the power plant lighting in the fundamental applications and advantages of analysis

First, Explosion proof luminaires in the power plant core application scenarios

Power plant as a high-energy, high-risk industrial sites, its lighting system needs to take into account the safety and energy efficiency.

Explosion proof luminaires by virtue of its explosion-proof, anti-corrosion, high temperature and other characteristics, into the following fundamental areas of essential equipment:

1. generator set layer and boiler room: generator set operation is easy to produce high temperature, mechanical sparks, the traditional lamps and lanterns probably due to glass cracking caused by accidents.

LED explosion-proof lamp 200W luminous efficacy of up to 120 lm / W, colour rendering index > 80, in order to enhance the illumination while avoiding the risk of explosion.

2. fuel storage areas [such as coal silos, fuel tanks]: these areas exist a large number of combustible substances, Explosion proof luminaires approved explosion-proof structural design [such as Exd Ⅱ BT4 grade] to isolate the internal arc, to ensure emergency evacuation, operational safety.

3. water treatment and chemical areas: chemical volatilisation probably form flammable gases, Explosion proof luminaires IP65 and above can effectively protect against water and dust, with LED light source UV/infrared filtration, to take care of equipment, personnel safety.

4. cable trench and distribution room: Explosion proof luminaires can be integrated with emergency functions, in the event of power failure automatically start to maintain the fundamental area of lighting, to help troubleshooting and repair.

Second, the power plant to choose explosion-proof lights four major advantages

1. Energy efficient, reduce the rate of electricity consumption LED explosion-proof lamp 200W light efficiency than the traditional metal halide lamps 30% higher, the same illumination under the power consumption by 50%.

50W LED explosion-proof lights, for example, 3 years of electricity can save 70%, the comprehensive cost recovery period of only 1 year.

2. Long life and low maintenance costs LED explosion-proof lamp life> 50,000 hours, is more than 5 times the traditional lamps and lanterns.

Hydropower plant roof light height is often more than 10 metres, reducing the frequency of high-altitude replacement can reduce the risk of maintenance and labour costs.

3. safe explosion-proof and stable operation of Explosion proof luminaires using increased safety or explosion-proof design, surface temperature ≤ 135 ℃ [T4 group], to avoid high temperature triggered by combustible gas explosions.

Its strobe-free, wide voltage adaptation characteristics [180V-265V] to ensure stability in complex grid environment.

4. Intelligent integration and compliance Explosion proof luminaires can be connected to the power plant monitoring system, the implementation of remote status monitoring and dimming control, in line with the ‘Electric Power Safety Regulations’ on the mandatory requirements for the lighting of flammable and explosive areas.

Third, the technical parameters and selection claims

Protection level: IP66/IP67 is preferred, suitable for high humidity and dusty environment;

Explosion-proof grade: ExdⅡBT4 is advocated for the generator set area, and ExdⅠMb is required for coal mine underground;

Light efficiency and colour rendering: light efficiency ≥ 120 lm / W, colour rendering index Ra> 80 to accurately identify the state of the equipment;

Certification guidelines: CNAS explosion-proof certification, ISO9001 quality management system, to ensure compliance.

Fourth. Successful cases: thermal power plant boiler lighting transformation

A thermal power plant 1-4 # boiler area of the original illuminance is only 30lx [below the national standard of 100lx], using SF-10-A LED platform light after the transformation:

The illuminance of the main channel is increased to 80lx, and the equipment area reaches more than 100lx; the protection level of lamps and lanterns is IP66, which is high temperature resistant and corrosion resistant, and reduces the maintenance frequency by 80%; the annual power saving is more than 70%, and the comprehensive cost saving for 3 years is 31,056 RMB.

FAQ: Explosion proof luminaires common problems answer

Q1: Are Explosion proof luminaires suitable for open-air power plant areas?

Yes. Explosion proof luminaires with IP66 protection level can resist rain, snow and dust, and are suitable for open-air transformer areas or coal conveyor bridges.

Q2: How to judge whether the explosion-proof lamp needs to be replaced?

Advocate every 2 years to implement the sealing inspection, if there is light failure > 30% or shell corrosion need to be replaced immediately.

Q3: LED Explosion proof luminaires and traditional lamps and lanterns illumination comparison?

200W LED explosion-proof lamp luminous flux ≈ 20,520 lm, equivalent to 400W metal halide lamps, and ground illumination increased by 20% -30%.

Q4: Does the explosion-proof lamp hold auxiliary dimming function?

Some models can be approved DALI or 0-10V interface to implement intelligent dimming to adapt to different working conditions.