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MCCBs

Ok, no showers on this one.

Where can I find max zs and time current characteristics for mccbs.

There's nothing in the BBB covering them (as far as I can see).

Thank you.
Parents

  • mapj1:

    Do not worry about asking, it is far better for all of us to ask the apparently daft question on here in more or less anonymity, than to see headlines asking why the life support  supply was cut off when only the light in the loo failed.


    BTW it was OMS who brought up the concept of only considering the more 'credible faults ' though I agree entirely with the sentiment - incredible faults may bulk up the Risk Assessment, if you are paid by weight of paper, but measures to avoid them are largely nugatory but can be comical.

    Risk " nuclear powered missile lands on substation, causing loss of power to dryers and lights in adjacent toilet block and welfare area"

    Mitigation  "nothing we can do could stop it really" 

    Probability " incredibly unlikely" 

    Action fit EM light in toilet and welfare areas, ensure spare toilet rolls are kept in fireproof cupboard..

    Reviewer Notes " if this happens I won't be around to worry about it, and the site facilities office no. will  go direct to answerphone "




     




    If that happened, I'd like better access to the toilet rolls...I hope the RA ensures that the fireproof cupboard isn't locked :-0

Reply

  • mapj1:

    Do not worry about asking, it is far better for all of us to ask the apparently daft question on here in more or less anonymity, than to see headlines asking why the life support  supply was cut off when only the light in the loo failed.


    BTW it was OMS who brought up the concept of only considering the more 'credible faults ' though I agree entirely with the sentiment - incredible faults may bulk up the Risk Assessment, if you are paid by weight of paper, but measures to avoid them are largely nugatory but can be comical.

    Risk " nuclear powered missile lands on substation, causing loss of power to dryers and lights in adjacent toilet block and welfare area"

    Mitigation  "nothing we can do could stop it really" 

    Probability " incredibly unlikely" 

    Action fit EM light in toilet and welfare areas, ensure spare toilet rolls are kept in fireproof cupboard..

    Reviewer Notes " if this happens I won't be around to worry about it, and the site facilities office no. will  go direct to answerphone "




     




    If that happened, I'd like better access to the toilet rolls...I hope the RA ensures that the fireproof cupboard isn't locked :-0

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