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Supply options for hot food counter installation

hertzal123

I have been asked to wire a set of 4 hot counters ,each comprising a heated cupboard,,heated well and heat lamps on a gantry over each unit.

The units are all joined together and are fed from a built in 3 phase board.All elements and stats to be fitted in the workshop.

I can see 2 possible ways to wire this.

A:Fit 3 mcbs in each unit and run 1 cable back to mcb board,4 cables in total.Disadvantage,mcb in board in series with mcbs in each unit.

B:Run 3 cables to each unit supplied from mcb board(with suitable warning labels)No mcbs inside units,but 12 cables/circuits required.

Thought that option B was the correct procedure but would welcome any advice.

                                                                                              Regards,

                                                                                                     Hz

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  • 0

    Hi, having carefully gone through the two options, option B will be most convenient for the installation with the following reasons; first to eliminate indiscriminate fault isolation and breaker sensitivity. Secondly, for accessibility concerns and ease of maintenance. Thirdly, for even distribution of loads which involves heating elements. Also, for clear labeling/identification. lastly, for standardization in termination of cables.

    Regards.

Reply
  • 0

    Hi, having carefully gone through the two options, option B will be most convenient for the installation with the following reasons; first to eliminate indiscriminate fault isolation and breaker sensitivity. Secondly, for accessibility concerns and ease of maintenance. Thirdly, for even distribution of loads which involves heating elements. Also, for clear labeling/identification. lastly, for standardization in termination of cables.

    Regards.

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