Codebreakers #75 – Professional Electrician

2 weeks ago

Need help deciphering these EICR codes? The NAPIT technical team, with the help of Codebreakers 18th Edition, answers your latest coding questions. Click on the photos for a closer look!

JOSH COOK: THESE ARE JUST SOME FINDINGS FROM A TYPICAL WEEK AT WORK…

During an EICR, there are often several observations that almost defy belief that such blatant disregard for basic electrical safety has been demonstrated on items that have been routinely installed and certified.

Picture 1 has the usual missing blanks that can allow access to live parts, which is further compounded by the introduction of non-compatible protective devices.

Picture 2 has a CU with a main switch that has been subjected to thermal damage to the incoming neutral conductor. It could be a loose connection, overload or neutral current diverted from potential J. Additionally, the T&E cable is installed across the live busbar and also in contact with the neutral terminal block of the consumer unit.

In Picture 3 we have a CU style cartridge fuse with a missing cover that allows access to live parts. There is also the addition of an RCD mounted externally to the consumer unit on the work block without a suitable enclosure. This also presents exposed live parts.

Picture 4 appears to be a service fuse with a solid copper core connecting the fuse holder contacts – this provides no protection against overcurrent or faults. Although the service cut-off fuse is not part of the inspection process for an EICR, this shows reliance on what is stated on the fuse holder regarding the fuse rating and whether it may not match the one actually installed.

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