Not Errata, errata is used when there is a printing error.: - : - :
Since the NEC is an NFPA document, ...is it possible to
issue an Errata for 250.52(A)(3), clarifying the
intended meaning of 20 "linear" ft., rather than wait
until 2017 ? :?
: - : - :
Remember that proposals are submitted by people in the industry, the CMP don't just sit around and randomly change code sections.And they have had how many opportunities to change the wording? Not like this was something new in the last edition.:roll:
People also have to have a problem with it or they will not submit a proposal.Remember that proposals are submitted by people in the industry, the CMP don't just sit around and randomly change code sections.
For this section to be addressed someone needs to submit a code change proposal to address the wording issue.
Actually, I think there is a little misinterpretation going on here. My impression is that when the CMP is referring to "linear", they mean "lineal" (i.e. straight), as opposed to, for example, bent at a right angle... as the zone of influence (mentioned by Golddigger, but not elababorated on, and contradicted in fact) is greater for a straight length.That's all well and good but that's not what the wording of the section says. Chris stated that the goal for CMP5 was to have a linear length not less than 20' but the wording doesn't really support that goal.
...One or more bare or zinc galvanized or other electrically
conductive coated steel reinforcing bars or rods of
not less than 13 mm (1⁄2 in.) in diameter, installed in
one continuous 6.0 m (20 ft) length, or if in multiple
pieces connected together by the usual steel tie wires,
exothermic welding, welding, or other effective means
to create a 6.0 m (20 ft) or greater length; or