SPD – SURGE PROTECTIVE DEVICES – WHAT ARE THEY – PROTECTIVE DEVICES PART 3 – HOW THEY WORK

This is part 3 of our mini series on protective devices.

There are many protective devices available, and they tend to fall into very different protection style groups. Each group performing its own specialised functions.

SPDs or surge protective devices are fairly recent developments in the world of protective devices and it is obvious to many that their use will become more obligatory over coming years as their effectiveness becomes more widely appreciated.

In this video we will look at what a surge protective device is and how it helps to protect an installation.
And we will answer that popular question – MUST I INSTALL AN SPD?

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This is video No.185 on our YouTube channel where we have videos on a wide range of electrical topics.