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Cooker and shower on the same circuit

Dasa

Hello everyone,

A few months back, a qualified electrician told me that a cooker and a shower can both be put on the same circuit; that doesn't sound right, surely loads using such a large amount of power must be on their own individual circuits?

I haven't been able to ask a question about this until now because I had difficulty logging into my IET account and had to get a new username and password for it.

Thank you,

Dasa

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  • 0

    So, one day last year I got up early and drove around sixty miles to work and one of the jobs on the schedule is to connect the new 8.7 kW electric shower to the existing shower circuit. So I needed to assess the existing installation.

    A single B40 MCB in a consumer unit in the garage without any RCD protection supplied a 6.0 mm twin and earth cable that ran along the garage wall to a 30 amp junction box from which a 6.00 mm twin and earth cable ran to the shower and another to the kitchen, where it supplies a freestanding cooker as well as a double socket over a worktop.

    The choices were:

    Option 1: just connect the shower to the existing circuit without altering the circuit or circuit protection.

    Option 2: connect the to the existing circuit without altering it, but replace the MCB with a RCBO.

    Option 3: Remove the shower circuit from the junction box and tidy up the cooker circuit, then install a new junction box to the shower circuit cable and extend it back to the consumer unit and connect it to a new RCBO, so the shower is completely separated from the cooker and socket circuit.

    Are all options viable?

    Which option would you go for?

Reply
  • 0

    So, one day last year I got up early and drove around sixty miles to work and one of the jobs on the schedule is to connect the new 8.7 kW electric shower to the existing shower circuit. So I needed to assess the existing installation.

    A single B40 MCB in a consumer unit in the garage without any RCD protection supplied a 6.0 mm twin and earth cable that ran along the garage wall to a 30 amp junction box from which a 6.00 mm twin and earth cable ran to the shower and another to the kitchen, where it supplies a freestanding cooker as well as a double socket over a worktop.

    The choices were:

    Option 1: just connect the shower to the existing circuit without altering the circuit or circuit protection.

    Option 2: connect the to the existing circuit without altering it, but replace the MCB with a RCBO.

    Option 3: Remove the shower circuit from the junction box and tidy up the cooker circuit, then install a new junction box to the shower circuit cable and extend it back to the consumer unit and connect it to a new RCBO, so the shower is completely separated from the cooker and socket circuit.

    Are all options viable?

    Which option would you go for?

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