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01-22-2023, 05:32 PMGunnar Alquist started a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionOh good grief. California just started enforcing the 2020 NEC (2022 CEC) at the beginning of 2023 and I have just begun looking into the changes. ...9 replies | 225 view(s)
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Yesterday, 01:08 PMdavid shapiro replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionQuite right you were, Markus. I can see why the installer might have done that. "The curse of knowledge" usually refers to the fact that I am...9 replies | 225 view(s) -
01-24-2023, 02:32 PMMarkus Keller replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionOddly I just saw one of these installed a few weeks ago. I wondered what the hell is this thing doing here. It wasn't a new construction house. I'm...9 replies | 225 view(s)
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01-23-2023, 07:07 PMJerry Peck replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionMaybe , don't remember, and yes. My thinking was to use enough protective devices of decent quality as 'inclined fuses', so to speak, so as to...9 replies | 225 view(s)
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01-23-2023, 06:22 PMdavid shapiro replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionYes, if their values exceeded those of joules (the joules to which they were subjected). What was their rating? Did they offer "burned out"...9 replies | 225 view(s)
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01-23-2023, 05:50 PMJerry Peck replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionI always connected my computers, including my notebook computers, to APC 1500 VA rateUPS units. And I would plug the UPS unit into a surge...9 replies | 225 view(s)
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01-23-2023, 03:37 PMdavid shapiro replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionYou've got it right, Jerry. FWIW, I've never heard of SPDs/TransientVoltageSurgeSuppressors/Overvoltage Devices going wonky and causing grief. So...9 replies | 225 view(s)
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01-23-2023, 08:13 AMJerry Peck replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionLikely so. But the problems will most likely be the devices not working and the homeowner not knowing that the devices are not working (or even...9 replies | 225 view(s)
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01-22-2023, 11:12 PMGunnar Alquist replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionI' have no doubt that the local suppliers will have them. I am concerned that they will be problematic. AFCI devices have gone through changes over...9 replies | 225 view(s)
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01-22-2023, 08:02 PMJerry Peck replied to a thread 2020 NEC Surge Protection in Electrical Systems: Home Inspection and Commercial InspectionEither is supposed to protect everything down stream of it. ...9 replies | 225 view(s)
