Sourced and supplied across Saudi Arabia
Arc flash protection is bought in calories, and the number has to come from a study rather than a catalogue. Garment fabric to ASTM F1506 carries an arc rating expressed in cal/cm² as ATPV or EBT — the incident energy at which a second-degree burn becomes likely, or at which the fabric breaks open. NFPA 70E ties PPE categories to minimum arc ratings, with category 1 at 4 cal/cm², category 2 at 8, category 3 at 25 and category 4 at 40. Internationally IEC 61482-2 covers the same hazard by a different test route. State the incident energy at the working distance.
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| Incident energy | In cal/cm² at the working distance, from the arc flash study |
|---|---|
| Standard required | ASTM F1506 with NFPA 70E, or IEC 61482-2 |
| PPE category | If your procedure uses NFPA 70E categories, state which |
| Garment scope | Coverall, jacket and trousers, or full suit with hood |
| Hood and face shield | Arc-rated hood, and the shield rating required |
| Gloves and footwear | State if arc-rated gloves and dielectric footwear are in scope |
| Layering | Arc ratings of layered garments are not simply additive — state the system |
| Ventilation | Hood ventilation matters for extended work in Gulf conditions |
| Hi-vis requirement | State if the suit must also meet a high-visibility class |
| Storage and carry | Kit bag or case, if the suit is shared between crews |
| Certification documents | Arc rating test certificates required with delivery |
| Sizes and quantity | Units per size, and inspection interval expected |
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