Earthing Home Cinema Kit

ithorne · 16-10-2009, 8:55 AM

Any electricians in the house?

While reconnecting my Home cinema set-up recently I noticed that ALL of the components have two pin mains connectors - none have a connected earth wire. Do I need to find a way to create at least one Earth in the system - I know not to create an earth loop.

Sonic67 · 18-10-2009, 2:07 PM

If equipment has a double hollow square on it then it doesn't need an earth.

ithorne · 18-10-2009, 3:14 PM

Quote:

Originally Posted by Sonic67

If equipment has a double hollow square on it then it doesn't need an earth.

That means it is double insulated. I thought some electronics needed a good earth to stop noise - rather than for the "Earth as a fault protection" system.

Sonic67 · 18-10-2009, 4:39 PM

If so there should be a connection for it. Usually a binding post with a thumbscrew.

ian34g · 03-12-2009, 11:02 PM

Hi, Just read your post and thought i'd reply.
If your equipment is all double insulated it not only does not need a earth (or cpc (circuit protective conductor) as we now must call it!) but it would be dangerous to attach one!!
Ian.