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Incorrectly sized lugs on busbars

Mark Whittingham
Hi,

What are your thoughts on installing 300/16mm Lugs on 300mm singles connecting to 12mm holes on a busbar. We have found this today inside a newly installed transformer and in my opinion its not good practice at all. The lugs should really match the hole size and bolt size?
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    Thank you all for the feedback, i did think to myself when inspecting this why they just never used correctly sized lugs and bolts to match the busbar hole size. Its a new install so why wouldnt you. We have consulted the manufacturer before signing our commissioning sheets and letting this go online under load. After all this is a 11kv 3MW transformer. We don't want any unwanted heat transfer when under massive load.
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    Thank you all for the feedback, i did think to myself when inspecting this why they just never used correctly sized lugs and bolts to match the busbar hole size. Its a new install so why wouldnt you. We have consulted the manufacturer before signing our commissioning sheets and letting this go online under load. After all this is a 11kv 3MW transformer. We don't want any unwanted heat transfer when under massive load.
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