On Sun, 09 Oct 2011 12:39:11 -0500, you wrote: >Lamp sockets are all screw-clamp. Plugs have a variety of versions, >including some >with "vampire" teeth that pierce the zip-cord to make contact. I always >worry about >high-resistance faults that don't blow the breaker.
They can be nasty. Particularly the type that tap into an existing wire so you end up with a sort of Y connection. They work great at first, then seem to break down over time. They corrode and give, as you say, high resistance connections. Often that leads to the donor cable burning through. I believe they would not pass inspection on UK mains installations, and I know categorically that your car insurance may not pay out if your vehicle suffers an electric fire and the assessor finds one. However, I have some examples of those Y types and simple one to one connectors that contain some sort of gel. They aren't mains electric connectors, but designed for UK telephone connections. 50V DC which jumps to 75VAC on ring. They get used regularly outside and seem to work pretty well as long as there is no mechanical strain on them. I think you can't beat a good soldered joint, but it isn't always practical. > I like the British >idea with the >fuse in the plug, so you can set the fuse just a little higher than the >appliance needs >to draw. I haven't found any hardware in the US to allow this except in >Christmas >tree light sets. Fused plugs are a really good idea, and essential with the way we wire using ring mains :) Steve Blackmore -- ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
