T
Toneyz
Sorry I don't know how to post up a youtube link but have a look at the John Ward one part 2 on AFDD's worth a watch.
Discuss AFDD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! in the UK Electrical Forum area at ElectriciansForums.net
Good point Mate, but with some of the prices of AFDDs being bandied about, I think the decision not to use them will be a financial choice.AFDDs are a response to an American problem, 30k housefires a year caused by high-current radials in wooden buildings, and what we would call substandard wiring - lots of wire nuts, for example.
A feature of RFCs is they don't arc if there's a single break, a safety factor that AFDD makers want us to abandon, just so the AFDD can detect an arc if a break happens. In other words, increase the chances of a dangerous fault just so an AFDD can detect it.
Sparks are supposed to recommend AFDDs and note if the customer declines. How is the customer meant to make that technical judgement?
A pretty damming example of how these AFDDs aren't all they are made out to be, it was a low load, but how much will it take to start a fire?????? good video JWSaw it earlier. Makes you wonder if they are any good?
Its the downside to letting commercial interests get on the jpel/64 and influence regs. The companies that make them have seen £ signs galore with these.
Yes but I think he was trying to say that the small spark he WAS creating might be enough to start a fire. Might.......obviously the more juice you have the more likely you are going to get a decent spark, but these days you often are not going to be using much, especially on lighting circuits. So is it worth it?Nice vid.
Are you sure he tested it correctly to standards IEC 62606 and 60898-1?
I showed this vid to one of the guys at work. We couldn't find the spec for the Eton on but we looked at a ABB one.
He was testing on a 40W load. That's 0.17A on a 16A device.
The ABB graph doesn't even go down that far. It just goes to 0.1 (which is 1.6A. 10th of 16A) and it is looking for an ark of 1 second at about 2.5A, so could be up to 10 seconds for 0.17A assuming the graph continues up.
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http://search.abb.com/library/Downl...guageCode=en&DocumentPartId=PDF&Action=Launch
Yes but I think he was trying to say that the small spark he WAS creating might be enough to start a fire. Might.......obviously the more juice you have the more likely you are going to get a decent spark, but these days you often are not going to be using much, especially on lighting circuits. So is it worth it?
Saw it earlier. Makes you wonder if they are any good?
Its the downside to letting commercial interests get on the jpel/64 and influence regs. The companies that make them have seen £ signs galore with these.
Reply to AFDD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! in the UK Electrical Forum area at ElectriciansForums.net
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