Earth loop impedance testing is essential if installations are to meet the Wiring Regulations and Part P. But unless you’ve the patience of a saint and the skills of a juggler, it isn’t always easy.

Depending on the earthing configuration of the network, the instrument also uses multiphase measurements to calculate the impedance of the neutral conductor, enabling it to reveal defects that could ...

Many of your readers will know me from past correspondence to Security Installer’s Mailbox page plus many who know me via training courses that I have been involved with. These include City & Guilds ...

Keywords: Earthquake engineering, model-in-the-loop simulation, shake-table control, impedance matching, control-structure interaction, real-time feedback Seismic isolation Abstract: Model-in-the-loop ...

Designed for electrical contractors, field service engineers, and domestic appliance installers, the handheld PrimeTest 200 combines safety-testing capabilities for in-service testing along with ...

Output impedance is the key to testing filter and regulator phase margin, even when the control loop is inaccessible. Many voltage regulators are of the fixed output variety and include the voltage ...

I feel that I should write to highlight a few minor points that should have been mentioned by Gerald Honey in his article on Mains Compliance (April 04 edition) so that the industry gets it right ...