RCD vs PRCD: Why are they needed?

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RCD vs PRCD: Why are they needed?

A portable RCD is an essential part of any testers kit for any test & tag job. But what are they and why are they so vital for testing and tagging electrical devices. More importantly, how do portable RCD differ from a regular RCD?

What is a RCD?

A Residual Current Device is used to prevent electrical shocks or electrical fires. By measuring the current in a system it can detect whether the electricity is flowing through an unintended path and automatically shut off the circuit. For example if electricity enters a person the residual Current Device will cut the power before it can give you too nasty a shock. Potentially saving a life or preventing an electrical fire.

Typically you can find RCDs throughout your home in places such as in the fuse box. They may also be built into socket outlets and some extension cords.

Fire_test_and_tag

What is a PRCD?

A portable RCD is an especially useful piece of kit for any electrician or tester. By having a PRCD the user can guarantee their safety when working with an appliance that is of safety concern. It can plug into any standard socket and automatically cut the power when it detects any issues.

In fact, portable RCDs are so important they are often built into portable appliance testers

Whether you are a professional or planning on doing any DIY involving appliances, an RCD is a must have. Metrotest has a selection of reliable RCDs to choose from. Visit our store or get in contact with us to find the right portable RCD for you.