New to the 2020 NEC is a section on “line side splices or taps”. Devices used to make splices or taps on the line side of the service disconnect shall now be listed for use on the line side of the main (service side). Section call for effective date of 1/1/23, but will not actually go into effect until 12/31/23 when adopted by the Florida Building Code.
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Till next time be safe work safe.
Jake