First of all Happy Fourth of July.
This Code section has been added to the “2014” Code (which is not adopted in Florida),
to instruct us as to what is accepted for field applied labels.
Some of the sections that require theses labels are 110.16, 110.24, 408.3, and many others.
110.21 Marking.
(B) Field-Applied Hazard Markings. Where caution,
warning, or danger signs or labels are required by this
Code, the labels shall meet the following requirements:
1) The marking shall adequately warn of the hazard using
effective words and/or colors and/or symbols.
(2) The label shall be permanently affixed to the equipment
or wiring method and shall not be hand written.
Exception to (2): Portions of labels or markings that are
variable, or that could be subject to changes, shall be per-
mitted to be hand written and shall be legible.
(3) The label shall be of sufficient durability to withstand
the environment involved.
Informational Note: ANSI Z535.4-2011, Product Safety
Signs and Labels, provides guidelines for the design and
durability of safety signs and labels for application to electrical equipment.
Some of the signs will be allowed to be hand written, but not all of them. Ask your electrical inspector/plan reviewer for guidance.
Till next week be safe out there, always use a tester to see if it is Hot!
Jake