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Britton Electric is one of the very few electrical contractors who is capable of performing this vital service: the protection against Arc Flash Hazards including analysis and equipment labelling.
Implementation
Information Gathering
- Information gathering
- Single-line diagram
- System modeling
- Short circuit and current calculations
- Current-time curve drawings
- Incidental current calculations
- Energy calculations and safe distance findings
- Protection levels and personal protective equipment selection
- Equipment labelling
- Reports and recommendations
- Integration of the analysis within the Health and Safety Program
- Training
- Drawings, coordination & short-circuit analyses
- Sub-stations, distribution, panels
- Cable lengths
System Analysis
- Calculation and system simulation to determine levels of protection
CAN/CSA-Q 396.1.2 - 1989Protection Relay Coordination Analysis
Integration into the Health and Safety Program
- Adjustment and calibration of protection relays
- Compliance With:
- Quebec Electrical Code
- NFPA 70E & IEEE1584 standards
- C.S.S.T. requirements
Levels of Protection against Electric Arc Flashes (Nfpa 70e)
Correction & System Improvement
- Personal protective equipment
| Category | Cal/cm2 | Clothing |
|---|---|---|
| 0 | 1.2 | Untreated Cotton |
| 1 | 4 | Flame retardant (FR) shirt and FR pants |
| 2 | 8 | Cotton underwear FR shirt and FR pants |
| 3 | 25 | Cotton underwear FR shirt, FR pants and FR coveralls |
| 4 | 40 | Cotton underwear FR shirt, FR pants and double layer switching coat and pants |
- Addition of protection devices to minimize risks of exposure
Labelling
