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Last few days/hours to comment on Amendment 2, BS7671 before the shutters close

mapj1
Just a reminder the deadline for comments on the latest draft for  comment is fast approaching - this Friday the 11th in fact. (Though it is not clear if that is midday or midnight, so probably best to log in and out again before the end of Thursday..)


If you wish to comment and have not yet done so you need to create an account on the BSI website

Click on login/register on the RHS of the BSI welcome page  and  give them an email you can read without needing to change machine, as you need to click a verify link they send you.

Once logged in  search for "BS 7671:2018" oddly searching for BS 7671 without the space between BS and 7671:2018 does not find it...

There are 4 links as the thing is a bit of a monster. PDFs of each part can be downloaded for perusal, but to finally comment you need the on-screen viewer (the Read Draft and comment button)

This is not quick so allow plenty of time.



regards Mike
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  • 0
    Mike, thank you for the reminder. FWIW, I have suggested a much simpler determination as to whether SPD is required or not.

    Protection against transient overvoltages shall be provided where the consequence caused by the overvoltage could result in:

    (i) serious injury to, or loss of, human life; or

    (ii) any other intolerable risk of loss.



    Note: In order to determine whether a risk is intolerable, a discussion will need to take place between the designer, installer and any other relevant parties, such as the installation owner and/or end-user. The following factors should be taken into consideration:

    (i) the magnitude of financial loss including the loss of data or equipment;

    (ii) the chance of a transient overvoltage occurring; and

    (iii) the cost of providing protection.


    It really is quite simple: cost of protection < cost of loss x chance of loss. Anywhere!


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  • 0
    Mike, thank you for the reminder. FWIW, I have suggested a much simpler determination as to whether SPD is required or not.

    Protection against transient overvoltages shall be provided where the consequence caused by the overvoltage could result in:

    (i) serious injury to, or loss of, human life; or

    (ii) any other intolerable risk of loss.



    Note: In order to determine whether a risk is intolerable, a discussion will need to take place between the designer, installer and any other relevant parties, such as the installation owner and/or end-user. The following factors should be taken into consideration:

    (i) the magnitude of financial loss including the loss of data or equipment;

    (ii) the chance of a transient overvoltage occurring; and

    (iii) the cost of providing protection.


    It really is quite simple: cost of protection < cost of loss x chance of loss. Anywhere!


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