Does anyone have the ROP's on 250.122b where the intent changed from voltage drop due to legnth to any condition.
I would like to comment on the Draft but I need to see where the code body deviated and morphed to where it is now.
Thanks..
5- 264 - (250-122): Accept
SUBMITTER: Jamie McNamara, Hastings, MN
RECOMMENDATION: Revise to read as follows:
250-122 (b)
Increased in size Adjustment for Voltage Drop. Where
ungrounded conductors are
increased adjusted in size
to compensate for voltage drop, equipment grounding conductors, where installed, shall be
increased in size adjusted proportionately according to circular mil area
of the ungrounded conductors.
SUBSTANTIATION: The current text is limited to voltage drop only and is subject to abuse and misinterpretation (e.g. it was done per the plans, not for voltage drop). The manufacturers
directions often call for conductor to be increased in size, with no explanation for why the ungrounded conductors size is increased, with no corresponding requirement for the equipment
grounding conductor to be increased.
PANEL ACTION: Accept.
red = text to be deleted
blue = new text