Introduction to Surge Protection (SPDs)

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.
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This DVD shows practical examples of how to implement protection to meet the requirements of Amendment One of the 17th Edition. Tony Cable and Dave Austin explore the causes of Overvoltages of Atmospheric netic Pulses (SEMPs) and how they can damage electrical equipment.