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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.
At present what we have is a looping system where each Power Cluster sits on each floor there are 4 floors in total each cluster has power sockets of 2 of each (ie 2 x 110v,2 x 230v & 2 x 400v) and a 230v 13A Socket there are inputs for the main power on 2 sides left and right so i assumed a change-over switch would be necessary to allow power to run on one side for safety reasons. At present we are told off the client that at anyone time there are 4 Welders using the rig totalling somewhere in the region of 92A and that there is a Milling and Cutting Machine and also a Crane on the 400v system but are told that the Milling & Cutting Machines won't be in operation while the Welders are working. So a cable of 25mm2 to 35mm2 is being used to cater for the loads in use. But the problem is the bend radius on this type of cabling especially with it being armoured cabling.There is not much in the way of space so we was looking at alternative ways of getting around this.
At present what we have is a looping system where each Power Cluster sits on each floor there are 4 floors in total each cluster has power sockets of 2 of each (ie 2 x 110v,2 x 230v & 2 x 400v) and a 230v 13A Socket there are inputs for the main power on 2 sides left and right so i assumed a change-over switch would be necessary to allow power to run on one side for safety reasons. At present we are told off the client that at anyone time there are 4 Welders using the rig totalling somewhere in the region of 92A and that there is a Milling and Cutting Machine and also a Crane on the 400v system but are told that the Milling & Cutting Machines won't be in operation while the Welders are working. So a cable of 25mm2 to 35mm2 is being used to cater for the loads in use. But the problem is the bend radius on this type of cabling especially with it being armoured cabling.There is not much in the way of space so we was looking at alternative ways of getting around this.
