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    #16
    Originally posted by mbrooke View Post

    In terms of compartments being opened while live? Or something else?
    It failed as a 6000HP started. Why it failed we couldn't determine as there was nothing left off the switch.

    To be honest, you would be better off (safer) with vacuum switches.
    [COLOR=#000000]The reports of my death are greatly exaggerated.[/COLOR]

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      #17
      Originally posted by Tony S View Post

      It failed as a 6000HP started. Why it failed we couldn't determine as there was nothing left off the switch.

      To be honest, you would be better off (safer) with vacuum switches.
      I believe you, you're right.

      Just not sure how much more it will cost.

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        #18
        What is a life worth?

        I’ve been stood next to a 433V motor starter when it flashed over on shutdown, I needed new underwear! The back EMF caused the flashover between the starter’s 200A incoming fuses, this in turn took out the 550A busbar riser fuses.

        Stopping a motor is often more precarious than starting………..?
        [COLOR=#000000]The reports of my death are greatly exaggerated.[/COLOR]

        Comment


          #19
          Originally posted by Tony S View Post
          What is a life worth?

          I’ve been stood next to a 433V motor starter when it flashed over on shutdown, I needed new underwear! The back EMF caused the flashover between the starter’s 200A incoming fuses, this in turn took out the 550A busbar riser fuses.

          Stopping a motor is often more precarious than starting………..?
          As long as no one opens the door when live (you should be qualified to even go near MV equipment) I can not see a problem with it using a switchgear enclosed air break switch.

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            #20
            I’m a SAP (Senior Authorised Person), no way would I allow an electrician to open a live MV panel.

            I do have master keys for interlocks, they’re in my safe at home not at work unless there’re needed.
            [COLOR=#000000]The reports of my death are greatly exaggerated.[/COLOR]

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