In this video Dave Austin focuses on Ring Final Circuit Continuity Testing to the 17th Edition. Focus On videos spend more time demonstrating a subject than they would be in a full video, for example the Domestic inspection and testing video.
This videos explores not only the requirements in BS7671 the 17th Edition for Initial Verification before an electrical installation is put into use, but also demonstrates the practical side including the actual test methods which can be used.
Introduction to Surge Protection looks at the requirements introduced with Amendment No.1 of the 17th Edition (BS7671) in Section 534. The function of Surge Protective Devices (SPDs), how they work and how they should be connected are explained in detail.