What is RCD Testing?

Residual Current Device (RCD) testing is a critical electrical safety procedure that checks whether safety switches in your property are functioning correctly. These life-saving devices protect against electric shocks and electrical fires by cutting off power within milliseconds when a fault is detected.

Why RCD Testing Matters in Australia

Australian law requires regular RCD testing under:

  • AS/NZS 3760

  • Work Health and Safety Regulations

Without proper testing, your business risks:

  • Electrical shock injuries or fatalities

  • Potential workplace lawsuits

  • Voided insurance claims

  • Heavy compliance fines

How RCD Testing Works

Our licensed technicians perform a comprehensive 3-stage test:

  1. Push-button Test

    • Verifies mechanical operation

    • Checks trip time <300ms

  2. Ramp Test

    • Gradually increases current to identify exact trip threshold

    • Must activate between 15-30mA

  3. Trip Time Test

    • Measures how quickly the device cuts power

    • Must disconnect within 40ms at 5x rated current

Common RCD Failures We Find

  • Slow tripping times (over 40ms)

  • Failure to trip at correct current

  • Corroded contacts from moisture

  • Mechanical wear from age

  • Incorrect wiring during installation

Need RCD Testing in Sydney?

Tagtech Australia provides fast, reliable RCD testing across NSW.

Call 0447 942 990 for immediate service or book online

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