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I recently installed a number of new circuits in a building acquired by and adjacent to my local branch of the Men's Shed.
The CU was already in place, a new one installed by the landlord, simply providing lighting and sockets circuits. The added circuits were for the roller shutter doors, an additional lighting circuit, a hot water heater/handwash unit and an additional 4 socket radial. An electrician was engaged to connect all these to the CU. He was a very personable young man and did a very neat job. He was a bit concerned about drilling new entries into the board, but had his holesaw ready. I suggested he use a hole punch insted, and he confessed that he had never heard of such a device. I borrowed a 20mm from my pal who lives 5 minutes away, and the electrician was amazed at how easy it was to create the holes, with clean edges and no vibration. I leant him my Noga reamer to clean the new apertures, and he'd never seen one of these either.
I met him about a month later and he told me he had bought both of these tools. His employers refused to pay for them, but he was very happy to have them in his toolkit.
I guess we are talking about what car manufacturers used to call NVH...Noise, Vibration and Harshness.
The CU was already in place, a new one installed by the landlord, simply providing lighting and sockets circuits. The added circuits were for the roller shutter doors, an additional lighting circuit, a hot water heater/handwash unit and an additional 4 socket radial. An electrician was engaged to connect all these to the CU. He was a very personable young man and did a very neat job. He was a bit concerned about drilling new entries into the board, but had his holesaw ready. I suggested he use a hole punch insted, and he confessed that he had never heard of such a device. I borrowed a 20mm from my pal who lives 5 minutes away, and the electrician was amazed at how easy it was to create the holes, with clean edges and no vibration. I leant him my Noga reamer to clean the new apertures, and he'd never seen one of these either.
I met him about a month later and he told me he had bought both of these tools. His employers refused to pay for them, but he was very happy to have them in his toolkit.
I guess we are talking about what car manufacturers used to call NVH...Noise, Vibration and Harshness.