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AFDDs AMD 2

John Peckham
In response to the suggestion of separate threads for individual changes to the 18th I thought I would start this one for AFDDs.


So what are the forum members views on the new requirement for AFDDs?


What is the safety case for the change? E.g impact on public safety, fires etc.Evidence?


What is the impact on the installation industry? How easy to fit, cost advantages disadvantages etc?


Will you feedback to the BSI on the changes and what will you say?


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    Good points here I think.  The energy used by these devices is significant. At a time when we need more than ever to eliminate waste we should be very sure of the benefits before adding these constant small loads to the system. 

    The extra costs of fitting these devices and the space that they require will result in essential upgrades not being done and may well reduce the average quality of installations. 

    In my view the committee needs to ensure that the case is really well made and produce the evidence transparently if they are going to mandate change of this nature.  I would be more convinced if insurers showed more interest in the matter but as buildings insurance seems to be uninterested in the condition of the electrical installation I think we can assume its not the principal driver of claims.

    These devices are a useful addition to the designers armoury but simply being able to fit them isn't justification for having to.
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  • 0
    Good points here I think.  The energy used by these devices is significant. At a time when we need more than ever to eliminate waste we should be very sure of the benefits before adding these constant small loads to the system. 

    The extra costs of fitting these devices and the space that they require will result in essential upgrades not being done and may well reduce the average quality of installations. 

    In my view the committee needs to ensure that the case is really well made and produce the evidence transparently if they are going to mandate change of this nature.  I would be more convinced if insurers showed more interest in the matter but as buildings insurance seems to be uninterested in the condition of the electrical installation I think we can assume its not the principal driver of claims.

    These devices are a useful addition to the designers armoury but simply being able to fit them isn't justification for having to.
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