Explosion proof street light in railway lighting applications – safe, reliable and intelligent integrated solutions

First, the special needs of railway lighting and Explosion proof street light core values

Railway environment [such as tunnels, yards, crossings, etc.] often high humidity, dust, vibration and potentially flammable gases [such as locomotive fuel vapour or electrical equipment leakage gas], ordinary lighting equipment is easy to spark or high temperatures lead to safety hazards.

Explosion proof street light approved explosion proof structural design [such as Ex d Ⅱ C T6 guidelines], high protection level [IP65/IP66] and seismic performance, into the protection of the railway all-weather safe operation of the equipment just need.

For example, a railway tunnel accident statistics show that the introduction of Explosion proof street light, due to lighting failures caused by more than 80% reduction in potential safety hazards.

În al doilea rând, explosion proof street lights in the railway scene in the core advantages

1. intrinsically safe design, to eliminate the risk of explosion Explosion proof street light using explosion proof shell and safety-enhancing circuit design, approved to limit the internal arc, spark escape path, and control the surface temperature below the ignition point of combustible gases [eg, T6 group ≤ 85 ° C], to meet the needs of the railway class Ⅱ C explosive gas environment.

2. Environmental adaptability to strengthen the corrosion resistance and waterproof: aluminium alloy shell combined with epoxy resin spraying process, salt spray resistance test over 1000 hours, to adapt to the coastal railway high salt spray environment.

3. anti-vibration and wide temperature range operation: anti-vibration structure design, holding -40 ℃ to +60 ℃ extreme temperature, suitable for high-cold railway tunnels or high-temperature areas.

4. Energy saving and high efficiency and long life energy consumption comparison: 100W LED Explosion proof street light, for example, luminous flux of 12,000 lumens, compared with the traditional 400W high-pressure sodium lamp energy saving of 70%, the annual energy saving of a single lamp of more than 2,000 degrees.

5. Lifespan advantage: LED light source life of more than 50,000 hours, reducing the tunnel frequent replacement of lamps and lanterns maintenance difficulties and costs.

Intelligent control and emergency linkage integrated Internet of Things technology, to help remote dimming, fault warning and emergency lighting automatic switching [such as 0.5 seconds after the power failure to start the backup power supply, continuous lighting for more than 30 minutes], to protect the railway accident evacuation and repair lighting needs.

Third. Typical railway scenes and solutions

1. railway tunnel lighting high brightness requirements: 100-250W high-power explosion proof floodlights, luminous efficacy ≥ 140 lm / W, covering a radius of 30 metres, to ensure that there is no blind spot lighting in the tunnel.

2. Emergency function: equipped with built-in battery, automatically switch to emergency mode after power failure, to meet the ‘Railway Tunnel Lighting Design Code’ Evacuation Lighting Guidelines [light intensity ≥ 0.5lx, duration ≥ 30 minutes].

3. Flexible installation of station and crossing lighting: ceiling-mounted, wall-mounted and pole-mounted, suitable for platform roofs, signal towers and other complex structures.

4. anti-vibration design: the lamps are anti-vibration treatment, can withstand continuous vibration caused by train traffic, to avoid the light source loose or damaged.

5. Remote section and solar integration combined with solar panels and energy storage systems [such as BAD63-A series], the implementation of off-grid power supply, suitable for remote railway sections without grid coverage, annual operation and maintenance costs reduced by 50%.

Case reference: a southwestern mountain railway project using 120 sets of solar Explosion proof street light, the average annual electricity cost savings of 450,000 yuan, emergency response efficiency by 60%.

Fourth, the selection and installation specifications

1. Selection points explosion proof grade matching: according to the type of environmental gas [such as Ⅱ C corresponding to hydrogen] choose Ex d Ⅱ C T6 and other high-grade products. 2.

2. Protection level: IP66 and above are preferred to ensure stable operation under heavy rain or dusty environment.

3. Installation and maintenance of cable sealing: the use of explosion proof flexible pipe connection, junction box sealing grade up to IP54, to prevent moisture intrusion.

4. Regular inspection: quarterly cleaning of the cooling structure, check the battery performance [such as solar energy system battery capacity degradation ≤ 15% / year].

Al cincilea. Future Momentum: Intelligent and Green Energy Integration

1. 5G and AI integration: approval of the sensor real-time monitoring of environmental gas concentrations, linkage Explosion proof street light automatically adjust the brightness or trigger an alarm.

2. Optical storage integration: enhance solar energy conversion efficiency to more than 22%, combined with lithium storage, the implementation of zero-carbon railway lighting.

3. Modular design: help high-speed replacement of damaged parts [such as light source module], reduce maintenance time by 50%.

FAQ: Explosion proof street light common problems

Q1：How to choose the explosion proof street light protection level for railway tunnel?

A: According to the type of gas in the tunnel [such as ⅡC] and humidity conditions, choose IP66 and above protection level, and match the Ex dⅡC T6 explosion proof guidelines.

Q2：How long is the maintenance cycle of Explosion proof street light?

A: It is advocated to check the sealing of radiator and cable every quarter, and the solar energy system needs to test the battery capacity every year to ensure that the decay rate is ≤15%.

Q3：Will the intelligent control system increase the cost?

A：Initial investment increase of about 10%-15%, but approved energy saving and reduce the frequency of manual inspection, the extra cost can be recovered within 2 years.

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