How Often Do I Need to Test My RCDs?

The function of the RCD or residual current device is an effective protection for homes and workplaces against electrocutions and other electrical-related dangers. This device can automatically stop the current supply in your place if it detects an unexpected earth-fault. This way, you can avoid electrical-related damages such as the following:

  • Fire
  • Explosion
  • Electric shocks
  • Electrocution
  • Death

However, just like any other devices, RCDs may experience tripping and faults. Especially if it’s already old and not regularly tested and maintained. So, to continuously enjoy the peace from having RCD at your home or office, regular testing must be conducted.

How Often Do I Need to Test My RCDs

According to the AS/NZS 3760, RCDs must be tested at least every 12 months by a licensed electrical contractor. So, keep in mind that this is not a DIY job. Electrical issues are dangerous and without proper knowledge about it, you may end up getting injured.

Is there a difference between an RCD and a circuit breaker?

These two electrical devices may look the same, but they’re different in functions and look. Circuit breakers can only help in preventing overloading and short circuits, while an RCD can protect your home from electrocutions.

Most homes are installed with circuit breakers. So if you don’t have an RCD yet and you want to raise the protection of your home from electrical surges, then call a licensed electrical contractor today to help you with this.

What are the different RCD tests?

Here are the following tests conducted in RCDs:

  • Residual non-operating current (Test 1): In this test, the RCD should not trip when a current around 40% to 50% passed between the active and earth for about 5 seconds.
  • Tripping current and time test ( Test 2): In this test, with the same current rate with test 1, the RCD should trip within around 30 milliseconds.

These tests can help ensure that your RCDs are still properly working. Just make sure that it’s done by a professional electrical contractor, otherwise, you may end up with bigger damages and penalties from the law.

What are the dangers of not testing RCDs?

Various dangers such as the following can arise if your RCDs are not regularly tested and maintained.

  • Reduced safety and protection from electrical shocks
  • Increased risk of fire occurrences
  • Possible explosion
  • Property damage
  • Death

Just imagine how devastating it can be if these dangers happen to your home or your workplace. So make sure to call a professional electrician to conduct regular testing to your RCDs. This way, you can keep your home or office safe should an unexpected electrical surge occur.

Are there different types of RCDs?

RCDs have 4 types:

1. Portable RCD: This type is attached to the power boards. This can only protect the lines that are mainly connected to it.

2. Meter box mounted RCD: Typically, this type is placed beside the circuit breaker.

3. Power Point RCD: This type is installed to the power point and can be distinguished through its buttons. This can help in protecting electrical appliances in bathrooms.

4. Combination RCD: This device can both protect circuit lines and prevent electrocutions at the same time. Usually, this can be retrofitted if your meter box is already full.

If you don’t know which type of RCD is for your place, call your local electrician today. They can help assess your property and the type of electrical protection that it needs.

Do I need a professional to check my RCDs?

According to the Australian standard on electrical testing and maintenance, only the competent person can do the testing of RCDs. Therefore, doing the testing on your own is a NO-NO.

Electrical work is risky. It requires proper tools, skills, and knowledge to perform it safely. Or else, you can get injured from accidentally touching exposed live parts. That’s why only the licensed electrical contractors are allowed to handle this kind of works.

Need help?

Do you already have RCDs at your home or workplace but can’t remember the last time it was tested?

Allow our professional electricians to assist you with the testing of your RCDs. We provide top-quality RCD installation and maintenance services. Let us know your concerns by sending s an email here. Otherwise, call us at 07 3315 0619.

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