Clear answer
Clear answer, explained.
Requirements typically include clear roof access routes, labelled DC and AC disconnects, rapid shutdown capability where applicable, and defined clearances around equipment and roof edges. Designs are reviewed by building and fire authorities as part of the permitting process.
Key points
What this means in practice.
- Roof access and setback pathways must be maintained
- Clearly labelled
- AC and
- DC disconnects are required
- Rapid shutdown or isolation devices may be mandated
- Equipment spacing supports fire crew movement and ventilation
When this applies
Best-fit environments.
- Large industrial rooftop solar installations
- Facilities requiring building and fire department approval
- Sites with extensive roof coverage or high system voltages
- Projects subject to provincial electrical safety authorities
Q·01
