Down rate cable installed in aerated block wall?

Discuss Down rate cable installed in aerated block wall? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

M

mmmark

Given that aerated concrete blocks have thermal insulation value of between 1/2 and 1/5 of 100mm rockwool should a cable chased into the wall and skimmed over with plaster be down rated as per installation method 100 or 102 ? Is this altered if the cavity behind the aerated blocks are filled with 50mm polybead insulation?
Thank you
Mark
 

Reply to Down rate cable installed in aerated block wall? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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