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Have done a continuity test and there are 3 wire to the Euro plug cable

it says that class 2 has a double layer of insulation between the load and the user Am I right in thinking all class 1s are metal outer-casing?

He is the MD, its his shop!

My question really then is, why do some appliances only have a live and earth wire and no earth. My speakers have a plastic case on them so why are they a 3 pin port? My domestic stand up lamp only has 2 wire you see I do remember having bad experiences making garlic bread Instead of using the...

But if the appliance was plastic it would not

So I will wire them up to an extension lead of 6 meter with 3 pin UK plug and 3 wire cable, if you don't see a problem with that? So is the whole purpose of an earth wire there to take any electrical leakage away from the load and away to safety, the fuses box? I uploaded a photo of the UK pin...

I have attached 2 images of the euro plug and a link to the speakers https://www.thomann.de/gb/the_box_pa_12_dsp.htm

I went back to the shop where I bought it and he said the earth will just be wired to the body of it and he said 2 wires only should not be a problem. Am I right in thinking that if there was a shortage in the wire and the electricity spills out to the body then it will travel down the earth...

Hi I have something similar to this https://www.ebay.co.uk/itm/10W-LED-AC-Driverless-120-PIR-Motion-Sensor-Floodlight-Slim-IP65-Outdoor-/151628868956 It has 3 wires on it (live, return and earth). But my cable I wish to join it yo only has 2 wires. Is there a problem not using the earth wire?