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Subject Topic: 4 pin extension on electric hook up
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27/6/2011 at 8:36pm
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only for compliance with the wiring regs. in reality you wouldn't notice it. although the nominal voltage in the Uk is 230 volts it can range between 216.2 and 253 so if the supply was at the top end and you exceed the 5% max volt drop you would still be higher than the minimum. this of course is all theory as the 253 volts would be measured at the incoming terminal from the DNO ( Distribution Network Operator) and there will be a volt drop on all cables in the system if they were all at maximum volt drop etc it could be an issue but in 25 years i have never seen an install that gets that close.

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camping since I was a kid


27/6/2011 at 9:39pm
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The statury voltage in the U.K. is now between 207 and 253 volts,so I don't think you would notice the volt drop on a 40m x 2.5mm cable,with 3Kw you would be close to the cables'rating and if the cable were 1.5mm it would exceed its'rating.
Saxo1


27/6/2011 at 11:23pm
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 aye spose i should put that yes its fine. the RCd is going to trip before you feel the belt. trust me on this

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no it wont, you still get a hell of a belt, before the rcd trips, the only thing is the tripping values are calculated so as not to kill you, but believe me you still get a hell of a belt.

trust ME on this.

stu



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I predict a riot !!


28/6/2011 at 7:20am
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really. you do know that a 30mA current is just barely detectable to ghe human body. one would suggest you had insulated yourself fairly well from the genetal mass of earth if you got a belt. its not the time or volts thst kill you its the current.
having demonstrated anRCD effectiveness to an apprentice or 2in my younger days i can hand on heart say you font get a belt. 100mA you certainly would.

DO NOT TRY THIS AT HOME KIDS IT REALLY IS STUPID AND I WOULDNT ENTERTAIN DOING IT IT NOW.

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camping since I was a kid


28/6/2011 at 7:51am
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Quote: Originally posted by saxo1 on 27/6/2011
The statury voltage in the U.K. is now between 207 and 253 volts,so I don't think you would notice the volt drop on a 40m x 2.5mm cable,with 3Kw you would be close to the cables'rating and if the cable were 1.5mm it would exceed its'rating.
Saxo1


suggest you read aopendix 2 paragraph 14 Uo is 230V
tolerance is +10%/-6% 216.2-253 .allowing maximum volt drop of 5% on a circuit for supplied from public network gives 204 V so not sure where 207V comes from. even at 8% from a private supply the lowest you could measure would be 199V at the outlet point. volt drop on the lead at 3kw would be 7V leaving you wifh a possible 192V . the current would be close to 16A but still fsr enough away from tripping current for overcurrent. I might throw the figures through amtech or hevacomp latwr just to see feasible maximum lengths of circuits for a average campsite. love reverse engineering things

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camping since I was a kid


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28/6/2011 at 11:02am
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The statutory voltage band, within which the UK electricity distribution companies have to deliver electricity, is surprisingly wide these days. The 2003 European harmonised voltage is 230V+/-10%, which gives a single phase voltage band of 207V to 253V, and a three phase band of 360V to 440V; in the latter case, there is a staggering difference of 80V between the highest and lowest limit.
Saxo1


28/6/2011 at 2:11pm
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statutory, as in legal,voltage tolerances are set out in ESQCR 2002 SI 2002 No2665   EN50160:2010 isnt statutory in the UK.
not everything on wikipedia is accurate:)


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camping since I was a kid


28/6/2011 at 2:31pm
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I stuck a screwdriver in a live light socket once. Didn't give me a jolt but certainly surprised me ...didn't do the screwdriver much good either!


28/6/2011 at 3:00pm
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Quote: Originally posted by Bob61 on 28/6/2011
I stuck a screwdriver in a live light socket once. Didn't give me a jolt but certainly surprised me ...didn't do the screwdriver much good either!

mains tester screwdriver? #shudders at thought of how lethal they can be

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camping since I was a kid


28/6/2011 at 6:56pm
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It was a mains tester but I thought switching the light off at the wall made it dead...wrong!


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28/6/2011 at 7:28pm
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Quote: Originally posted by Bob61 on 27/6/2011

Quote: Originally posted by Outdoorlass on 27/6/2011


Sorry to be thick here, we only have a one socket ehu, which is a pain as we always need more, could we run an extension lead off that?

Yes, think of your EHU lead as a self contained mains unit just like you have at home. At home you have the mains box with the trip switches (fuses) probably in the hall somewhere or under the stairs. Wired into that are all your household sockets. If you need to run an extension off one of the sockets you can do so. The EHU is just a mobile socket with it's own trip switches and fuses. If something goes wrong the fuses trip just the same as at home. In exactly the same way as at home though, don't overload the 13 amp socket. As with all extensions and electrical appliances used in tents make sure they are kept dry and the cable is a not a tripping hazard.



Post last edited on 27/06/2011 01:15:32





thank you:)

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28/6/2011 at 7:52pm
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as outdoor lass says just think of it as a selfcontained unit. keep it below 2.3Kwand you will never trip on overload. keep it dry and it won't go off on earthfault. i think the kampa ones are IPX4 the flap certainly isn't IPx5 rated.



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camping since I was a kid


30/6/2011 at 10:13pm
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I was nearly looking up Google Translate on this thread there. Thankfully plain English came back just in time.

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Always forgive,Never forget;Learn from mistakes,But Never regret;People change,Things go wrong;Just remember life goes on

Cool campers use Delta Pegs.

The happiest people aren't the ones who have everything they are the ones who make the most of everything they have


21/3/2014 at 5:53pm
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can i plug a normal extension into campsite electrics then plug my rdh hook up into extension lead


21/3/2014 at 8:38pm
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Quote: Originally posted by oggdog1952 on 21/3/2014
can i plug a normal extension into campsite electrics then plug my rdh hook up into extension lead



You can't plug a household extension into the campsite electrics unless you have fitted it with a blue and white hook up plug which fits the pitch supply socket...which is not very wise. Why would you want to do it that way round if you have a proper EHU lead?




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