This 1600A Dorman Smith CB has stood guard over a switch board for around 35years without, as far as I know, anyone going near it. I suppose I should ask DS but
anyone know what service arrangements, if any, that it should be subject to?
Given that the device is now obsolete and spares are probably not obtainable - I would not recommend operating it to check it's function until a replacement plan is in place.
You don't say what the switch board supplies but if we assume that the loads are important then continuing to operate them via a device that probably cannot be repaired if it fails is asking for trouble. Replacement will probably be problematic as the switch board may have to be modified if an mccb with the same form factor and method of connection cannot be found.
It has a Castell key so I assume that it is part of a switching system. Is there any other means of supplying the switch board if this mccb is out of commission - if not a planned replacement should be considered.
This situation is encountered all too often. The owners of such equipment really should considered what they would need to do in the event of a failure in any part of their supply system that is essential to their operation.
Given that the device is now obsolete and spares are probably not obtainable - I would not recommend operating it to check it's function until a replacement plan is in place.
You don't say what the switch board supplies but if we assume that the loads are important then continuing to operate them via a device that probably cannot be repaired if it fails is asking for trouble. Replacement will probably be problematic as the switch board may have to be modified if an mccb with the same form factor and method of connection cannot be found.
It has a Castell key so I assume that it is part of a switching system. Is there any other means of supplying the switch board if this mccb is out of commission - if not a planned replacement should be considered.
This situation is encountered all too often. The owners of such equipment really should considered what they would need to do in the event of a failure in any part of their supply system that is essential to their operation.
