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16th February 2014, 21:38 | #1 |
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Rover 75 Saloon 1.8 auto Join Date: Mar 2012
Location: Le Theil de Bretagne (France)
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Any sparky's on here, need advice.
I have an induction hob which I am connecting to two phases of my three phase supply.
The unit has five wires, two live, two neutral and one earth. As per the installation diagram I will be connecting the two neutrals together at the unit. The question I have is does the neutral from the fuse box need to be (approx) twice the size of one phase, for instance if the phases are 2.5mm should the neutral be 6mm. I think the answer is no, 2.5 the same as the phases but need to be sure. I have rewired the whole house and balanced the three phases so I'm quite OK handling the system (passed by EDF), just this one thing I need to know. Thanks Pete Last edited by petespieces; 16th February 2014 at 21:41.. |
16th February 2014, 21:47 | #2 |
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Rover 75 1.8 Connoisseur SE and a Ford S-Max Titanium Join Date: Jan 2012
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The size of cable is determined by the load you are putting on it
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Mods so far: Plenums, bonnet release mod, handbrake compensator (arctic), rear parking sensors, coolant level sensor (Vindaloo), DRL's, Fan resistor upgrade ( Jules), Marmite lighting, Auto dimming rear view mirror, twin horns, fog lights, real walnut dash, walnut gear knob, Sean DD unit with DVB-T, message centre ipk, electric sun blind, auto opening boot lid, walnut steering wheel, electric seats Link to my Auto Boot Lift Mod http://www.the75andztclub.co.uk/foru...d.php?t=114273 |
16th February 2014, 21:53 | #3 |
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Rover 75 Saloon 1.8 auto Join Date: Mar 2012
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16th February 2014, 22:03 | #4 |
This is my second home
Rover 75 1.8 Connoisseur SE and a Ford S-Max Titanium Join Date: Jan 2012
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Ah, I see.
The neutral can be 2.5mm also. Think about your incoming supply to your house. You probably have something like 25 square mm for each phase, and 25mm for neutral too.
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Mods so far: Plenums, bonnet release mod, handbrake compensator (arctic), rear parking sensors, coolant level sensor (Vindaloo), DRL's, Fan resistor upgrade ( Jules), Marmite lighting, Auto dimming rear view mirror, twin horns, fog lights, real walnut dash, walnut gear knob, Sean DD unit with DVB-T, message centre ipk, electric sun blind, auto opening boot lid, walnut steering wheel, electric seats Link to my Auto Boot Lift Mod http://www.the75andztclub.co.uk/foru...d.php?t=114273 |
16th February 2014, 22:08 | #5 | |
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Rover 75 Saloon 1.8 auto Join Date: Mar 2012
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Quote:
Pete. |
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17th February 2014, 19:52 | #6 | |
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75 CDTi Connoisseur SE Tourer, MGF vvc, 1963 MGB Join Date: Aug 2012
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Are you are in a farm or an industrial building/large or multi-floorhouse to have 3 phase supply. Any link to the wiring diagram or a scan of it. Have you actually got 2 phases on the same floor or in the same room? |
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17th February 2014, 20:08 | #7 |
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As above, 2.5mm neutral is ok, must be some size house you have there.
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17th February 2014, 20:27 | #8 |
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Not a large house, three beds, two reception etc.
Out here in the French countryside 3 phase is common, ERDF will change to single phase but apparently I would have to pay the cost of replacing the overhead cables from the village to our place, believe me that is not going to happen basically the current setup has one phase to feed upstairs and the water tank heater, one phase for cooker and dishwasher and one phase for original hob and clothes washer, the sockets and lights etc are split by the various rooms depending on power usage. The kitchen is the only room where all three phases will be in use, one for the cooker and two for the new hob. The earth is provided through spikes driven into the ground, when we first moved into here there was only one ground earth point and the cable was actually broken (so NO earth), my wife kept getting a small shock whenever she used the washing machine Last edited by petespieces; 17th February 2014 at 20:44.. |
17th February 2014, 20:46 | #9 | |
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Quote:
Enjoy.
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Mods done - Spyhole mod - Xenons - Blue dash lights (except message centre) - VIS indicators - Illuminated sun visors - Drivers grab handle - Smiley plate - Rear electric blind - Handbrake compensator. Mods to do - Powerfolds - Better ICE - Headlight washers - Heated seats - cruise - And loads more i can't remember. [SIGPIC][/SIGPIC] |
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18th February 2014, 19:09 | #10 | |
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75 CDTi Connoisseur SE Tourer, MGF vvc, 1963 MGB Join Date: Aug 2012
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Quote:
Re the earth spike. Nasty! |
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