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nicsin02
Hi guys another wee question, this morning when i was in the yard i was given a fluke thermal imaging tester and my boss quickly showed me how to use it and sent me on my way to inspect 12 boards and ive to give him my notes and pictures tomorow, ive never done this before so didnt really know what to look for, in most of the boards the earth & neural bars were the warmest things in the board at around 35 C, there was a few contactors that were glowing red with around 50C figured it was the coil inside, but there was 2 breakers out of about 150 that were glowing red along with the cable for the circuit with a temp of between 35-40C, tried tightening connections etc... is this due to a high load on the cable at that point or is the mcb needing replaced as other mcbs were a cool blue on full load aswell, thanks guys