Audio Precision System One Dual Domani Measuirement Systems

In message , Arny Krueger writes

It's 2.5 square mm in area I believe, not the diameter of the core.

That is the only reason?

How are sockets connected on a radial circuit? Separate terminals for in and out?

My fault for not stating it was the cross sectional area. But then our US cousins quote gauge as if there was only the one. ;-)

Lighting radials are normally 1mm² which would be 17 AWG, protected by a 6 amp MCB.

David.

It all looks a bit new, maybe the installation isn't finished yet?

Unless you have unusually long cable runs or other special factors, it's oversized.

When I did my rewire I was offered both 1.5mm and 1mm at pretty much the same price - certainly within about five quid for 100 metres. That made it a no-brainer.

Do you ever think, before posting? Someone adds another circuit, and is too cheap to buy another breaker. Or the box is full, and they won't upgrade.

Isn't it enough in those places? New subdivisions are bulldozed, and if necessary, they use explosives to break up big rocks so they can be removed. You can't do that in existing neighborhoods without blowing out windows and sometimes closing busy roads for days. A lot of the above ground service areas were wired after the homes were built, and early poles were set with a pickax or jackhammer to chip away the rocks. The actual city of Cincinnati is built on 'seven hills', of mostly glacier droppings from a long gone ice age. A lot of the suburbs are of similar conditions.

The RIP process is simple: You cut the old pole near the ground and drag it off the base. You winch it out of the hole, and set the new pole in the existing hole. Then transfer the wires to the new pole. This can be done without closing most roads. Have you ever worked in utilities or even CATV construction? It doesn't look that way from here.

If you don't like the way overhead cables look, just stop staring at the sky. :)

Yes. How else would they do it, if you can't use two wires under one screw?

The green screw on the lower left is for the 'Ground' connection. The silver colored screws on the left side are 'Neutral', and the brass colored screws on the right side are 'Line'.

How was he able to take the picture, if the building wasn't open to the public? :)

That is adding a second circuit to a breaker - nothing to do with putting the two ends of a single ring main into the same breaker terminal. Obviously it would be illegal, but it isn't what we were talking about.

So yes, I do think before posting. I thought you were stating that putting two wire ends into one terminal was illegal. It isn't. Try being a little clearer next time, will you?

What is wrong with having two circuits on the one breaker - provided the breaker is correctly sized for the cable? In practice it's no different from daisy chaining sockets.

Looks like the sort of thing you'd see in the UK from before WW2. From the cheapest of makers.

I wouldn't have believed that sort of screw connection was still in use. It's a dreadful way of making a connection. Unless you first crimp on a suitable terminal.

Sounds similar to what we call a 'Baby Belling':

Jesus, those terminals are a fire waiting to happen. They don't grip wires - all that happens when you tighten them is that the wire gets spewed out the sides. If you are lucky a tiny bit of it may still be under the screw head.

Maybe not where you are, but it illegal in the US as I've explained in another post.