Why test RCDs?
RCDs cut power when a fault is detected, protecting against electric shock. They can fail without anyone noticing until they're called on. Instrument testing confirms they still trip within the required time.
What's included
- Instrument testing of RCDs to confirm trip times meet AS/NZS 3000 requirements
- Testing across all RCDs on the board (general-purpose, fixed wiring, and socket-outlet types)
- Written test records with trip times and pass/fail status
- Quotes for replacement on any failed or aging RCDs
How often
Annual instrument testing by a qualified electrician is the usual recommendation. Easy to bundle into other scheduled maintenance visits to keep site disruption down.