BAY51-Q Series Explosion-Proof Fluorescent Emergency Light Fittings & Supporting YK/BY Components

1. Core Product Overview & Target Application

This full line of lighting components consists of BAY51-Q series explosion-proof fluorescent emergency light fittings, YK18DF-2CS/YK36DF-2CS electronic ballasts, and BY-2 battery-powered emergency controllers, designed exclusively for Zone 1 and Zone 2 explosive gas atmospheres, fully compatible with T8 18W and 36W standard fluorescent tubes. Target users include on-site electrical maintenance teams in oilfields, chemical plants, and mining operations, hazardous area equipment procurement specialists, industrial safety engineering contractors, and facility managers responsible for explosion-proof lighting system upkeep—groups routinely impacted by non-compliant lighting fixtures, failed emergency backup, poor dust/waterproofing, and frequent ballast burnout in high-risk environments.

Core Purpose: Every component in this lineup serves as a direct, certified replacement for hazardous area emergency lighting systems, delivering safe, reliable illumination during routine operation and uninterrupted emergency backup lighting during power outages. Engineered to meet strict national and international explosion-proof standards, these parts resolve critical pain points including spark ignition risks, substandard sealing, short component lifespan, and unreliable emergency switching, while providing a unified procurement benchmark and step-by-step technical troubleshooting guide for field engineering teams.

1.1 Product Introduction

The product portfolio covers BAY51-Q single and double-tube explosion-proof emergency light fittings (18W and 36W variants: L/X/B/D/G suffix models), matched with YK18DF-2CS (18W T8) and YK36DF-2CS (36W T8) high-efficiency electronic ballasts, plus BY-2 dedicated emergency controllers with built-in backup batteries. All fixtures comply with GB3836.1/2-2010 explosion-proof electrical equipment standards and hold IECEx hazardous area certification, suitable for continuous use in flammable gas, dust, and moisture-laden industrial environments.

Exclusive laboratory testing data confirms: BAY51-Q fixture housings maintain complete explosion isolation under 1.2MPa pressure testing; YK series ballasts run at a stable operating temperature of 42℃ under full load, with a continuous service life of 9200 working hours; BY-2 emergency controllers switch from main power to backup battery in 0.2 seconds, providing a minimum of 90 minutes of uninterrupted emergency lighting. Backed by decades of hazardous area lighting manufacturing experience and full third-party quality verification, every unit passes 100% performance and leakage testing before shipment, ensuring zero non-compliant parts reach the field.

1.2 Function Description

BAY51-Q series explosion-proof light fittings provide safe, enclosed lighting for hazardous locations, containing internal electrical arcs to prevent ignition of surrounding flammable gases or dust; each model supports both normal grid-powered lighting and automatic emergency backup mode. YK series electronic ballasts provide stable, low-flicker power output for T8 18W/36W fluorescent tubes, reducing tube wear and extending tube service life while cutting idle power consumption. BY-2 emergency controllers monitor main power status in real time, automatically activating the backup battery during power outages to maintain consistent emergency lighting, meeting industrial safety evacuation lighting requirements.

1.3 Structural Features

BAY51-Q fixtures feature a high-strength die-cast aluminum alloy shell with electrostatic anti-corrosion spraying, paired with thickened tempered glass lampshades resistant to impact and thermal shock; the flameproof joint design adopts precision machining, meeting Ex d IIB T6 Gb explosion-proof ratings. Sealing structures use high-density silicone rubber gaskets, reaching IP65 dustproof and waterproof protection, completely blocking moisture, dust, and corrosive gas intrusion. YK ballasts use fully encapsulated circuit boards with anti-vibration mounting, suitable for high-vibration rig and industrial environments; BY-2 controllers use sealed battery compartments with low-temperature resistant batteries, maintaining performance in harsh on-site conditions.

2. Applicable Operating Conditions

These components are designed for explosive gas and combustible dust hazardous areas, widely used in petroleum drilling, oilfield production zones, chemical processing plants, coal mines, and pharmaceutical manufacturing facilities. They operate stably in ambient temperatures ranging from -25℃ to 55℃, adapting to offshore oilfield salt spray, land oilfield dust, and high-humidity enclosed spaces. Suitable for permanent installation in explosion-proof control rooms, drilling rig platforms, underground operation spaces, and industrial safety passageways, complying with all hazardous area lighting safety regulations.

3. Maintenance & Field Engineer Practical Tips

3.1 Routine Maintenance Suggestions

Inspect BAY51-Q fixture seals and glass shades monthly for cracks or loosening, replacing damaged gaskets immediately to preserve IP65 protection. Test BY-2 emergency controller battery function every 90 days, ensuring full emergency runtime; clean dust from ballast and fixture interiors every six months to maintain proper heat dissipation. Tighten wiring terminal screws quarterly to prevent loose connections, and only use Ex-certified fasteners for all repairs to maintain explosion-proof integrity.

3.2 Critical On-Site Avoidance Guidance

Never open BAY51-Q fixture housings in live explosive environments—always cut main power before any maintenance. Do not replace YK series ballasts with non-explosion-proof generic models, as this invalidates hazardous area certification. Avoid using non-standard fluorescent tubes; only match T8 18W/36W tubes with corresponding ballasts and controllers. Do not modify internal wiring of emergency controllers, as this disrupts quick-switching performance and poses explosion risks.

We supply the following spare parts:

4. On-Site Hazardous Area Repair Cases

4.1 Bohai Offshore Oilfield Drilling Platform

Equipment Model: BAY51-Q18×2L + YK18DF-2CS; Operating Load: 18W dual-tube fluorescent lighting; Fault Issue: Fixture seal failure, moisture intrusion causing ballast burnout, no emergency lighting. Post-repair: Replaced BAY51-Q18×2L fixture and YK18DF-2CS ballast; indicators: IP65 sealing restored, ballast temperature stable at 41℃, emergency switchover time 0.2s. Customer Feedback: Resolved moisture damage, passed platform safety inspection, reliable offshore operation.

4.2 Permian Basin Onshore Oilfield Control Room

Equipment Model: BAY51-Q36×1D + BY-2 36W controller; Operating Load: 36W single-tube emergency lighting; Fault Issue: Emergency controller failure, no backup power during power outages. Post-repair: Replaced BY-2 emergency controller; indicators: Automatic switchover functional, 92 minutes of continuous emergency runtime, no spark risk. Customer Feedback: Fixed emergency lighting failure, meets oilfield hazardous area safety protocols.

4.3 Xinjiang Karamay Oilfield Production Area

Equipment Model: BAY51-Q36×2G + YK36DF-2CS; Operating Load: 36W dual-tube explosion-proof lighting; Fault Issue: Non-certified ballast overheating, explosion safety non-compliance. Post-repair: Replaced with YK36DF-2CS certified ballast; indicators: Operating temperature reduced by 18℃, full compliance with Ex d IIB T6 standards. Customer Feedback: Eliminated safety hazards, extended component lifespan, reduced maintenance frequency.

5. Frequently Asked Questions (FAQ)

6. Customer Procurement Guidance

For industrial operators seeking certified, long-lasting explosion-proof emergency lighting solutions for hazardous areas, this BAY51-Q fixture and supporting component series is the ideal choice. With full standard compliance, stable performance, long service life, and complete model options, these components streamline procurement, simplify maintenance, and eliminate safety risks associated with non-compliant lighting equipment.

We invite you to submit your exact model requirements, installation environment parameters, and certification needs to receive a detailed product quotation, full certification documentation, and professional technical matching support. Our engineering team provides model selection and installation guidance to ensure seamless, compliant integration into your hazardous area lighting systems, supporting safe and reliable operation in high-risk industrial environments.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619