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Any Pointers on electrical layout for a fabrication rig
Former Community Member
Trying to find the best approach to this problem has the cable trays between the sockets of the units will not cater for large cables above 25mm2 so was looking at having to change the design from a looping cabling system between Main sockets on each floor there are 4 floors in total on the rig to each Power Cluster.So that each Power Cluster have there own Power Supply cable going to them individually so we can look at cutting down the size of cabling to fit the cable trays.But to do this i'm after some electrical layout ideas from the Forum.The starting point of the electrical layout are 3 125A Sockets (ie.400v,230v & 115v) which have an interconnection at two ends (ie Left Side and Right Side) so there is a need for a change-over switch.Then from there on looking at adding a large distribution box for the individual cables to connect to the various sockets of the Power Cluster.
Looking at the drawing, then you have a 35mm2 cct fed by 2 125A plugs in parallel. This seems a bit under-sized. How do you arrange the fusing for the pair of plugs, and perhaps why are there plugs at all - could it not be hard wired at the ground floor end ?
If of you really do have 250A of load to disconnect and reconfigure, then either cutting the link on the top floor to make this two separated 125A circuits, or connecting the feeds together and using a larger connector examples or if you need flexibility then single pole power lock connectors as used for outdoor concerts etc might be better than some odd change-over switch arrangement. (do you have to sometimes take supply from a genset in the street ? )
Really 125A plugs are not intended to be used this way, and the total loading needs an explanation.
Looking at the drawing, then you have a 35mm2 cct fed by 2 125A plugs in parallel. This seems a bit under-sized. How do you arrange the fusing for the pair of plugs, and perhaps why are there plugs at all - could it not be hard wired at the ground floor end ?
If of you really do have 250A of load to disconnect and reconfigure, then either cutting the link on the top floor to make this two separated 125A circuits, or connecting the feeds together and using a larger connector examples or if you need flexibility then single pole power lock connectors as used for outdoor concerts etc might be better than some odd change-over switch arrangement. (do you have to sometimes take supply from a genset in the street ? )
Really 125A plugs are not intended to be used this way, and the total loading needs an explanation.
