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Selecting the right explosion proof LED lights is a safety-critical decision. Drawing on 17+ years of hazardous-area engineering and product certification, this guide distills practical steps to achieve compliance, performance, and durability—tailored for oil & gas, chemical, marine, and pharmaceutical applications.
Contents
- 1) Compliance Comes First
- 2) Identify Your Hazardous Area Classification
- 3) Gas/Dust Group & Temperature Class
- 4) Protection Concept
- 5) Environmental Protection: IP & IK
- 6) Photometric Performance
- 7) Installation & Maintenance
- 8) Documentation & Verification
- 9) Quick RFQ Checklist
- 10) Why Choose HEXLON
1) Compliance Comes First
Hazardous-area lighting must conform to recognized frameworks: ATEX (EU), IECEx (international), and NEC/UL844 (North America, Class/Division or Class/Zone). If you operate in multiple regions, prioritize dual-certified ATEX & IECEx fixtures to streamline approvals and audits.
Pro Tip: Keep certificates and the full Ex-marking with your MOC records and work permits. It saves time during inspections.
2) Identify Your Hazardous Area Classification
ATEX/IECEx (Zone System)
Gas: Zone 0 / 1 / 2 • Dust: Zone 20 / 21 / 22. Select equipment with the appropriate Equipment Protection Level (EPL: Ga/Gb/Gc or Da/Db/Dc).
NEC (Class/Division)
Class I (gases), Class II (dusts), Class III (fibres); Division 1 (normal), Division 2 (abnormal). For cross-mapping, ensure the product is explicitly certified for your scheme.
3) Match Gas/Dust Group & Temperature Class
Confirm your Gas Group (IIA/IIB/IIC) or Dust Group (IIIA/IIIB/IIIC), then select a T-code that does not exceed the ignition temperature (e.g., T6 ≤ 85 °C). Where hydrogen (IIC) is present, specify IIC-rated luminaires with T6 where required.
4) Choose the Right Protection Concept
Common concepts include Ex d (flameproof), Ex e (increased safety), and Ex t (dust protection). For many oil & gas platforms (Zone 1), Ex d luminaires are typical; for grain or powder handling (Zone 21/22), Ex t is often preferred.
5) Environmental Protection: IP & IK
Outdoor and wash-down areas benefit from IP66/67. Impact-prone sites should consider IK08–IK10. For offshore or corrosive environments, look for marine-grade coatings and stainless fasteners.
Explore HLBD06 (spot & flood) · See HLBD05 (multi-mount options) · See HLBT03 Floodlights
6) Photometric Performance
Match lumen output and distribution to the task: narrow for height, wide for open areas. Choose CCT and CRI that support inspection quality (e.g., 4000–5700 K, CRI ≥ 70/80). Consider emergency options and controls only if permitted by the hazardous classification and documentation.
7) Installation & Maintenance
Separate wiring compartments reduce exposure during installation and service. Look for modular accessories (pendant, ceiling, wall, bracket) that match your mounting method. Optional protective guards can be added where impacts are possible.
8) Documentation & Verification
- ATEX / IECEx certificates (and Declarations of Conformity)
- Full Ex-marking string (e.g., Ex II 2G Ex db IIC T4 Gb / Ex tb IIIC T80 °C Db)
- Installation & maintenance manuals including ambient ranges and T-codes
Visit R&D Center · CNAS Laboratory · Explore All Explosion-Proof Solutions
9) Quick RFQ Checklist
| # | Item | Your Notes |
|---|---|---|
| 1 | Certification: ATEX / IECEx / NEC (Class/Division) | |
| 2 | Zone or Class: Zone 1/2 or Zone 21/22; Class I/II/III Div 1/2 | |
| 3 | Gas/Dust Group: IIA/IIB/IIC or IIIA/IIIB/IIIC | |
| 4 | T-Code requirement (e.g., T6 ≤ 85 °C) | |
| 5 | Protection Concept: Ex d / Ex e / Ex t | |
| 6 | Ingress & Impact: IP66/67, IK08–IK10 | |
| 7 | Photometrics: lumens, distribution, CCT, CRI | |
| 8 | Materials & corrosion protection | |
| 9 | Mounting accessories & guards | |
| 10 | Certificates, Ex-marking, manuals |
10) Why Choose HEXLON
- Experience: 17+ years focused on explosion-proof solutions across oil & gas, chemical, marine, and pharmaceutical sectors.
- Expertise: Product lines engineered for Zone 1/2 and Zone 21/22 with ATEX/IECEx conformity.
- Authoritativeness: In-house testing, CNAS lab capabilities, and transparent technical documentation.
- Trustworthiness: Full certifications and Ex-marking provided with each product.
