Why this decision matters
Backup for one component does not prove the complete required function remains available.
Work through the actual task
- Ask the designer to document each door's loss-of-power behaviour.
- Have the relevant professionals verify the complete release/exit design.
- Ask the installer to explain the documented backup design and safe test procedure for your equipment.
Worked example
Different doors have different lock and exit requirements. This is a hypothetical example, not a completed customer installation.
The useful evidence at the end of this example is: A door-specific power and release schedule, not one blanket lock assumption.
Limits and follow-up
Door security must preserve safe exit. Have the appropriate qualified professionals confirm the door and emergency release design.
If the relevant check cannot be completed, record what remains uncertain and who will resolve it before work or sign-off proceeds.
Sources and equipment references
Checked for the product, supplier or information details used here. Exact procedures depend on the installed model; these links are not a substitute for its instructions.