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direct bonded board to brick walls and cable ccc/installation method...along with ever increasing insulation efforts

psychicwarrior

... is it reasonable to consider direct bonded construction, as a stud wall ?

and when it comes to installation methods would it be reasonable to consider for when the cable is against the board or against the brickwork

- no insulation  method 'C' ?

- with insulation method  102 (flat) and 'A' (round) ?   [bit hit on cable CCC gulp!]

e.g. pick a cable...   4mm T&E,  clipped to brick (on an external wall possibly), direct bonded boarding over it with some form of insulation inbetween, then OCPD @ 32A is *not* fine

regards to all

Habs 

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  • 0

    I reckon some overthinking might be going on here. Think for a moment about how a house heated with a heat pump will actually have a lower ambient temp than one with a gas boiler turned up to full. Then of course, we have lower rated appliances, lamps etc, so the cable itself most likely won't be carrying anything like it's design current in future.

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  • 0

    I reckon some overthinking might be going on here. Think for a moment about how a house heated with a heat pump will actually have a lower ambient temp than one with a gas boiler turned up to full. Then of course, we have lower rated appliances, lamps etc, so the cable itself most likely won't be carrying anything like it's design current in future.

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  • 0 in reply to whjohnson

    helo whj

    perhaps

    but  ib <= In <= Iz   regardless isn't it   accepting that lower Ib's reduce excessive waste of copper.

  • 0 in reply to psychicwarrior

    One person's excessive waste of copper is another person's lower running costs over the lifetime of the installation.

  • 0 in reply to OlympusMons

    And it's a one-off fee! Just for a change!

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