4000 A switchboard upgrade after a major fire
After a major fire, a treatment works needed a new 4000 A primary switchboard and every MCC on site moved across to it. We planned a series of critical shutdowns with the client, with a 1500 kVA generator feeding the new switchboard through its own interlocked ACB while the plant was transferred, installed the heavy cabling from a 2 MVA transformer, and did it all in a hazardous area with H2S present and confined-space procedures in place.







