Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 13 replies
  • Subscribers 32 subscribers
  • Views 3081 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

The Swiss Way

Roger B


We recently had our kitchen rebuilt and at the same time the distribution box was updated. Here are a few pictures to show a non UK installation. The supply is 3 phase 20A per phase. Lights and sockets are generally 1.5mm2  singles in conduit. Appliance power (2 or 3 phase) is usually cables in conduit. Sockets and lights are on the same circuit for a large room or a number of small rooms. Neutral used to be yellow and is now blue. Phases are red, white and black. Circuits after the switch can be any other colour.

64fe214e3a32373cfc13fd3fbe5acb1d-huge-01-bare-kitchen.jpg


Bare kitchen with first fix cabling

c8e58ae6697dc5cf980ca9d0337030aa-huge-02-ready-for-a-light-fitting.jpg


Ready for a light fitting

d27806d930806064e9394b54aefd6b84-huge-03-old-distribution-box-with-new-cables.jpg


The bottle fuses were for the appliances, 2 phase for the oven and hob and 3 phase for the dishwasher. The Bathroom and toilet had an RCD. The bedrooms and living room MCBs with neutral isolators.

3d5cf47b80207873e579b996534ead17-huge-04-swiss-plasterers-fill-the-boxes-as-well.jpg


Plasterers are the same everywhere.

82c35cdf1a47626fa161e9e19332df02-huge-06-space-for-the-oven-and-fridge-freezer.jpg


Space for the oven and fridge freezer with wiring.

2de8561beed4864fb2e2b66c36f58a9e-huge-07-wiring-for-the-hob-and-sockets.jpg


Wiring for the hob (cable) and sockets (singles).

1b1ec8c3f2fc3dcbf6d148774ced568d-huge-08-rebuilt-distribution-box.jpg


New distribution box. 3 phase MCBs for the oven and hob. RCDs for the dishwasher and lighting and power circuits.

33f52c124fa13fc9ed9db64aa66f203d-huge-09-documentation.jpg
592124a253ca1c378a7623a6ce6586c3-huge-10-supply-details.jpg


Supply details

8af10914d97f61cc680fa0e3ba8fef3d-huge-11-incoming-cable-to-the-block.jpg


Incoming cable to the block (6 apartments)

055ddf1b1dbbd9ab11b324ba7e0ad679-huge-12-meter-cupboard.jpg


Meter cupboard


.37d54f8a56d370a0ae7c78b8596399c4-huge-13-finished.jpg


Finished ?


Best regards


Roger

Parents
  • 0
    Mike,

    The incomer is 27.8mm diameter which I believe is 4x25mm2  with a copper ceander armour (hence the yellow stripe). The main fuse can take up to 160A DIN blade fuses, I guess that 100A is fitted. The outgoing cable is 25.3mm diameter which I believe is 5x25mm2.


    There is a communal oil fired boiler for heating as well as a communal electric water heater for summer use. This comes off the 7th meter. There is also the usual contactor system that switches the washroom onto your metered supply when you insert your 'magic key'.


    They are indeed C13 RCCBOs. This seems to have been a recent change to get the maximum from the 1.5mm2 final circuits.


    The fuses are 20A but the rated current on the plate is 32A I'm not sure why.


    Dusty,


    Thank you for the link. The comments are also interesting. Some of the colour coding is a bit dubious but otherwise it's not too bad. One of the key differences for the people in the UK is that the lower PSSC due to the load being split over three phase means that the UK 'fudge ' is not needed and mix and match consumer units are no problem.


    Best regards


    Roger
Reply
  • 0
    Mike,

    The incomer is 27.8mm diameter which I believe is 4x25mm2  with a copper ceander armour (hence the yellow stripe). The main fuse can take up to 160A DIN blade fuses, I guess that 100A is fitted. The outgoing cable is 25.3mm diameter which I believe is 5x25mm2.


    There is a communal oil fired boiler for heating as well as a communal electric water heater for summer use. This comes off the 7th meter. There is also the usual contactor system that switches the washroom onto your metered supply when you insert your 'magic key'.


    They are indeed C13 RCCBOs. This seems to have been a recent change to get the maximum from the 1.5mm2 final circuits.


    The fuses are 20A but the rated current on the plate is 32A I'm not sure why.


    Dusty,


    Thank you for the link. The comments are also interesting. Some of the colour coding is a bit dubious but otherwise it's not too bad. One of the key differences for the people in the UK is that the lower PSSC due to the load being split over three phase means that the UK 'fudge ' is not needed and mix and match consumer units are no problem.


    Best regards


    Roger
Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines