I just wanted to tell you that I received the package of Catalogs you sent me and to thank you. I haven't had much chance to look at them yet, but I will and will post anything I find interesting here. If you have any specific suggestions I can do that too. I have a Scanner here.
You're most welcome. I'll see if I can give you a few suggestions. Most general fittings will be found in both catalogs; the following refers to the TLC "Contact" catalog:
Pg. 11 6242Y Twin & earth cable. Our equiv. to Romex, like the sample I sent.
Pg. 21-26 Typical 13A recepts., switches etc. of various makes.
Bottom of pg. 35. These are the type of junction boxes most commonly used in domestic work - the types with brass screw terminals as we discussed a while back.
Top of pg. 54. Typical "consumer unit" (i.e. main panel) used in homes. These Wylex panels have changed very little in over 40 years & remain popular because they can be fitted with rewireable fuses, cartridge fuses, or C/Bs, all shown below.
Panels of more modern design which are common in residential, try pg. 53, 55, 57.
That should be enough to be going on with for now!
Re: To: Pauluk#132699 09/02/0111:30 PM09/02/0111:30 PM
Just thumbing through the Catalogs here and happened to come across "Earth Rods" The only length I saw was 4 feet long. Are these what are used for Services over there? I would've thought with your descriptions of "Ungrounded" systems that you would have a longer rod than that.
Do you get the "I Love Lucy" show over there? (could you please 'splain'?)
Re: To: Pauluk#132700 09/03/0101:25 PM09/03/0101:25 PM
Originally posted by Bill Addiss: Do you get the "I Love Lucy" show over there? (could you please 'splain'?)
Sure do. It comes around every so often for a re-run, along with Bilko, Star Trek, Happy Days, and the other old favorites. (Don't expect anyone here to have heard of "Gilligan's Island" thuugh.) Anyway, I shall 'splain' - Have to be English though because "Yo no hablo Espanol."
Longer earth rods were quite common in the past, and they're still available, but 4 ft. is pretty much the norm for residential services now.
The current IEE Regs. allow for an electrode resistance of up to 220 ohms. With PME and the old armor-earthed systems the ground-fault path is metallic. With a rod for grounding, there will almost always be a whole-house RCD (GFI).
I gather from some other posts that 8 ft. is standard there and the NEC specifies a maximum of 25 ohms. Correct?
Re: To: Pauluk#132701 09/04/0104:51 PM09/04/0104:51 PM
We can use any type of 'earth electrode' ( rods, pipes, plates, tapes, wires, as well as u/g structural metalwork in foundations or welded re-bar in conrete ) and the recommended EFLI shouldn't exceed 200 Ohms.
4' is a handy length for a Cu rod if you're driving by hand. Around my area you'd be lucky to get 4" in the ground! I use threaded rods; you can join them up and drive through to Oz if you want to get the figs down - or alternatively just daisy-chain them. I used to drive with a mallet, I now have a handy gizmo for the SDS-Max drill that thumps them in with no effort - too easy in fact!!
If hindsight were foresight, we'd all be millionaires!
Re: To: Pauluk#132706 01/04/0508:55 PM01/04/0508:55 PM