Section 443 of BS 7671:2018+A2:2022 contains requirements for protection against transient overvoltages either of atmospheric origin or due to switching. Where the application of overvoltage protection measures are required, regulation 443.1 specifies that any surge protective devices (SPDs) should be selected and erected in accordance with Section 534 of that standard. This article looks at ...

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Hager’s Technical Training Manager, Paul Chaffers, discusses the importance of providing installations with surge protective devices (SPDs) and looks at requirements and considerations of BS 7671:2018+A2:2022. In our everyday life, we’re surrounded by electrical equipment which may contain sensitive electronic components. Such products are vulnerable to transient overvoltages and can have their lifespan significantly reduced ...

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Depending on the particular characteristics of the ‘electronic’ loads and controls connected to an electrical installation, an RCD could be exposed to a range of residual current waveforms and frequencies. Unless RCDs are selected that are compatible with the loads and other devices connected, the protection intended may be compromised, as the experts at NICEIC ...

The post The importance of selecting RCDs that are suitable to electronic loads and controls connected to an electrical installation | NICEIC appeared first on Professional Electrician.