Are you involved directly with heat pump installations or expecting to deal with an existing installation? A better understanding of RCD requirements associated with HPs can save time and money for you and your customers, as Chaz Andrews, Technical Manager at Doepke UK, explains. ASHPs (air source heat pumps) contain large inverters in comparison to ...

The post 18th Edition RCD Requirements for Heat Pump Installations | Doepke appeared first on Professional Electrician.

Hager’s Technical Training Manager, Paul Chaffers, shares the importance of observing protective device terminal markings and discusses the requirements for disconnecting all live conductors, including the neutral conductor for certain applications. Usually, we consider the current flowing through a protective device to be in one direction only, i.e. from the distribution board to the load. ...

The post What are the requirements for disconnecting all live conductors? | Hager appeared first on Professional Electrician.

Need help with cracking those EICR codes? The technical team at NAPIT, with the help of the 18th Edition Codebreakers publication, answer your latest coding queries. Click on the photos for a closer look! CHRISTOPHER ORTHODOXOU: THE CUSTOMER WAS WONDERING WHY EVERY TIME SHE PLUGGED SOMETHING INTO THIS SOCKET IT WOULD TRIP THE RCD! This ...

The post Codebreakers #71 appeared first on Professional Electrician.

Andy Douglas, MD at Timeguard, asks whether the SRCD protection you install is up to standard. RCD-protected switched sockets and spurs (SRCDs) should at the very least comply with the latest safety standards for improved end-user safety and long-term reliability. You should also make sure you make the right, safe choice between passive and active ...

The post Prioritise your protection | Timeguard appeared first on Professional Electrician.

Do you need to know if your cables are leaky? According to the 18th Edition, the answer is ‘yes’, as Dave Sweetman, Marketing & Business Development Director at Di-LOG Group explains. How often have you spent hours fault-finding nuisance tripping issues for free, wishing you’d have known there was a problem before quoting for this ...

The post 18th Edition: Earth leakage explained appeared first on Professional Electrician.

Bureau Veritas warns of rising number of AC type Residual current devices (RCDs) being adversely affected by direct currents (DC) from electronic devices and renewable energy sources. Their warning follows on from the 18th Edition including updated guidance on the use of various types of RCDs. It comes amid the growing use of RCDs over the ...

The post Bureau Veritas RCD warning appeared first on Professional Electrician.

Andy Douglas, MD at Timeguard, asks whether your RCD protection is up to standard. It’s now two years since the latest British Standard for RCD protection and, while there has been the usual period of grace to run down stocks of older devices, surely it’s time to ensure your customers get the full benefits of ...

The post  RCD Protection: Is It Fit For Purpose? appeared first on Professional Electrician.

Ever had a problem with nuisance RCD tripping? Martindale Electric explains how the 18th Edition regulations and the company’s latest leakage current clamp meter have come to the rescue. Modern appliances and plug-in power supplies, by the nature of their design, generate low levels of leakage current, even when there is no fault present. This ...

The post Leakage Current And The 18th Edition appeared first on Professional Electrician.

The technical team at Megger answer this month’s reader query. YOU ASKED: I’ve been working in a college recently where supplies to the lab benches are protected by RCBOs with a 10ma earth leakage trip function. Loop testing these circuits was a nightmare! Is there any way of loop testing circuits protected by a 10ma ...

The post Made 2 Measure: Loop Testing of RCBO/RCD Circuits appeared first on Professional Electrician.

Essential technical advice from the team at ELECSA. The RCD has become an indispensable protective device, selected to provide fault protection, additional protection and, in certain circumstances, protection against fire. RCDs are widely used and, therefore, it is necessary for electricians to have a sound understanding of this type of protective device. Table 1 shows ...

The post RCDs: Operation and Application Explained appeared first on Professional Electrician.