The fundamental role of Flameproof led light in the substation lighting and selection guide

First, why substations must use professional Flameproof led light?

As the core facilities of the power system, there are high temperature equipment, flammable gas, continuous current and other special risks in the substation.

Traditional lighting equipment in the arc or short-circuit probably caused a fire, and fire-resistant LED lamps and lanterns approved flame-retardant shell [UL94 V-0 certification], explosion-proof structural design, can be triggered by electrical faults to reduce the risk of combustion by 93% [International Electrotechnical Commission data], into a modern substation lighting mandatory configuration.

Second, Amasly Flameproof led light five core technical features

1. triple protection structure: IP66 level sealed dust + 304 stainless steel explosion-proof shell + ceramic heat dissipation substrate, to ensure that the equipment in the -40 ℃ to +85 ℃ extreme environment stable operation

2. Intelligent overload care: built-in temperature sensor automatically cut off the abnormal circuit, response time <0.2 seconds [approved by IEC 60598-2 standard certification].

3. Electromagnetic compatibility design: anti-interference circuitry enables the lamps to maintain flicker-free illumination in a strong electromagnetic field of 10kV/m (in accordance with GB/T 18595 guidelines).

4. Directional heat dissipation channel: patented honeycomb heat dissipation structure makes the surface temperature of the lamps always lower than 65 ℃, to avoid the potential danger of high-temperature ignition.

5. Lead-free process: 100% RoHS compliant environmentally friendly materials, eliminating the risk of heavy metal release in the event of heat.

Third. Typical substation area lighting program

1. High voltage equipment area

Explosion-proof fireproof LED floodlights [100-200W], equipped with 120 ° wide-angle lens, illuminance value of ≥ 300lux, the protection level needs to reach IP67 or more.

2. storage battery room

Configuration of anti-acid corrosion explosion-proof lamps and lanterns [EX d IIB T4 certification], luminous flux maintenance rate in a corrosive environment for 5 years is not less than 90%.

3. control room corridor

Use of fire emergency dual-use LED panel lights, with 90 minutes of emergency power supply, switching response time <0.5 seconds

Fourth, the purchase of substation Flameproof led light 4 key points

1. Check the third-party certification: must contain IECEx/ATEX explosion-proof certification + UL fire certification + local power grid access qualification.

2. verify the optical parameters: color rendering index Ra>80, color temperature 4000-5000K, to avoid visual fatigue requirements

3. Field test: at least 3 times in the simulated arc environment to confirm the ignition test

4. Maintenance cycle: quality products should be guaranteed within 5 years, the light failure does not exceed 10%.

Fifth. Installation specifications and maintenance requirements

Cable entrance should use double seal locking device [refer to GB 3836.15 guidelines].

Quarterly use of infrared thermography to detect the temperature distribution of the lamps and lanterns.

Replacement of explosion-proof joint surface sealing ring every 2 years

Malfunction maintenance must be operated by technicians with explosion-proof electrical license.

FAQ: Substation Flameproof led light common problems

Q1：Flameproof led lights and explosion-proof lamps and lanterns difference?

A: The fireproof type focuses on preventing internal faults from spreading to the outside, and is approved by UL 1598A; the explosion-proof type focuses on preventing external explosions from intruding, and needs to comply with ATEX guidelines. Substations are recommended to use dual-certified products.

Q2: How can I determine the actual fire performance of a luminaire?

A: Suppliers are required to supply third-party combustion test images to observe whether the fire is self-extinguishing within 30 seconds after evacuation, and the dripping material does not ignite the pine wood below.

Q3：Does the LED driver power supply need special protection?

A: Must use potting type fireproof power supply module, potting material should be approved UL 1446 temperature test to ensure that in 130 ℃ environment does not carbonize.

Q4: How to calculate the lamp life?

A: Under the typical working condition of the substation [18 hours operation per day], the quality products should guarantee the L70 life ≥ 60,000 hours, and the warranty period should be specified in the purchase contract.