hi All,
I am trying to find some general statements that can be made about the global
legal position on who may or may not work on/install extra low voltage (ELV)
systems or equipment such as batteries, PV, turbines etc.
I understand that in the USA this is a matter for state legislation
A very clarifying change is what I'd call it!
First off, rather than being based on the actual breaker size on the
inverter output circuit, calcs are instead based on 125% of the inverter
rated output current.
705.12(D)(2)(1) addresses Feeders - but only applies when the inverter
output circuit
I thought one of the the rationale for the upsized conductor between
panelboards in series was to account for the possibility that the conductor
could be later tapped with other loads or backfed from another PV source in
theory. I never thought that rationale was reasonable - any future changes
of
Even in a feeder with line-neutral loads, the neutral still only carries the
imbalance between the phase loads: the case of maximum possible neutral current
is the hypothetical situation of the phase with largest line-neutral load
current, with all those loads on, and both other phases having
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