Current draw

Water, electricity, gas etc.
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RobertArthur
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Re: Current draw

Post by RobertArthur »

Tom, helpful but sometimes more than three is a crowd and you run the risk of damaging the insulation of existing wiring or take part in a game of tractor pulling, much force needed.

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Re: Current draw

Post by JohnnyD »

All this is very useful info, so thanks all......

Am I likely to find 1.5mm or 2.5 mm in the kitchen sockets that are the round earthed type socket........ 1.5mm seems a bit tight for high wattage kitchen devices.

JD

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Re: Current draw

Post by landmannnn »

Generally, 1.5mm to supply 5 sockets, 2.5mm eight sockets.

As you imply 5 kettles on the same spur would trip the circuit breaker.

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Re: Current draw

Post by Fitter »

When I wire any sockets up it's 2.5 sq mm only. 1.0 or 1.5 sq mm is for lighting circuits IMHO.
There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns—the ones we don't know we don't know.

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Re: Current draw

Post by Fitter »

RobertArthur wrote:
Tue Nov 26, 2019 10:57 am
@ Fitter: checking L and N position + presence of earth is made easier with this one from Chauvin Arnoux, the CA 751. Nice feature: no problems with these socket safety covers. Or something that doubles as a simple RCD tester. Made by Multimetrix, the VT35.

But Europe being Europe: transposing L and N can also be dangerous outside France, in Schuko countries.

@ Johnny: about wiring regs. And an update by Promotelec, les canalisations.
The VT 35 isn't expensive either from amazon.fr (major surprise) and another socket testing device too.
https://www.amazon.fr/s?k=MULTIMETRIX+V ... nb_sb_noss
Sorry forum won't post the link, search amazon.fr for "MULTIMETRIX VT 35 – Tomas Tester and Differential" in english.
https://www.amazon.fr/s?k=MULTIMETRIX+V ... nb_sb_noss
There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns—the ones we don't know we don't know.

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Re: Current draw

Post by RobertArthur »

@ Landmannn: with the introduction of Amendement 5 the regs for sockets per circuit have changed:

Quote:

Nouvelle limitation du nombre maximal de socles de prise de courant par circuit :
• 8 lorsque la section des conducteurs du circuit est de 1,5 mm² en cuivre ;
• 12 lorsque la section des conducteurs du circuit est de 2,5 mm² en cuivre.

Désormais, le décompte par circuit des socles de prise de courant se fait selon la règle du
« 1 pour 1 ». L’ancienne règle de comptage des socles multiples est supprimée.


Unquote

It's now: one = one. The old difficult (?) décompte regs allowed more sockets per circuit, because a double socket was
considered to be only one "connection point" . These regs allowed 16 sockets per circuit (8 connection points, 2.5mm), or 10 (5 connection points, 1.5 mm) see below:

Image

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Re: Current draw

Post by landmannnn »

I knew there had been a change, wasn't quite sure exactly what.

I guess the OP doesn't have a new installation, so the old regs would be the ones it was probably wired to.

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Re: Current draw

Post by RobertArthur »

@ Landmannn: you're right, the new regs are only for new builds, complete renovations or a new extension. These new regs were part of promises made by President Hollande: I'm gong to simplify regulations. Everybody was dreaming of a new French electrical code without the obligation of a hard wired communications network and real simplifications. Summary: they tried to rewrite several chapters of the French electrical code to make it more transparent. In doing so they introduced at the same time more regs and more detail. Simpler language, more regs, where is the simplification? Or in the words of this former president when presenting the final changes of his "choc de simplification": "La simplification, c'est compliqué", a lancé le président de la République lors d'une cérémonie de présentation du dernier train de mesures venant conclure son quinquennat.

OK, let's admit it, this is simple:

Image

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Re: Current draw

Post by RobertArthur »

To complete the picture for those with existing wiring, the old regs. The website of a French electrician has the old regs still onboard. As they existed from the introduction of the major revision of the French electrical code NF C 15-100 (December 5 th 2002) including the minor updates A1 ---->A4. A summary as published online by Hager before the introduction of Amendement A5. Picture one and picture two. Special attention for the so called circuits specialisés in this publication by Promotelec.

Rule of thumb: use 16 amp MCBs for 2.5mm wiring for sockets and 10 amp for lighting purposes with 1.5mm wiring. The max ratings mentioned (20 A and 16 A) can be a burden in future, because they are subject to new regs for dimensioning your interrupteurs différentiel (RCDs), 40 A or 63 A. With the introduction of A5 only MCBs in the domestic environment, fuses not allowed for new builds.

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Re: Current draw

Post by JohnnyD »

Just got a photo of our soon to be kitchen, and noticed these sockets, googling reveals its maybe a French Cooker plug, or high current plug, is that correct?
ggoia.jpg
Do thay have a name, and are they easy to obtain, I just bought some standard plugs which won't fit LoL

Is it indicative of the wiring behind it at all?

JD

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