Using Vegetation As a Means of Support

As noted in the 2011 NEC, vegetation shall not be used for support of overhead spans of branch circuits or feeders.

March 25, 2014

Vegetation shall not be used to support overhead conductor spans of _____ for temporary installations.

a) branch circuits
b) feeders
c) a or b
d) none of the above

See answer and applicable Code reference

The correct answer is: c) a or b

The general requirements for temporary installations can be found in Sec. 590.4 of the 2011 NEC. As noted in 590.4(J), "Cable assemblies and flexible cords and cables shall be supported in place at intervals that ensure that they will be protected from physical damage. Support shall be in the form of staples, cable ties, straps, or similar type fittings installed so as to not cause damage. Vegetation shall not be used for support of overhead spans of branch circuits or feeders."