2029 PI: 110.14(C)

wwhitney

Senior Member
Location
Berkeley, CA
Occupation
Retired
This one's for @tortuga:

Change:

110.14(C) (1) Equipment Provisions.
The determination use of termination provisions of equipment shall be based on 110.14(C)(1)(a) or 110.14(C)(1)(b). Unless the equipment is listed and marked otherwise, conductor ampacities used in determining with equipment termination provisions shall be based on Table 310.16 as appropriately modified by 310.12.

. . .

Substantiation:

In the UL guide info for AALZ that 110.14(C) partially incorporates into the NEC, and in the rest of 110.14(C), the term "termination provisions" is used to mean terminals or other provisions for the connection of field installed conductors.

However, the use of the words "determination" and "determining" with that meaning could lead to the conclusion that 110.14(C)(1) first paragraph is talking about how to select such terminals when constructing such equipment, rather than about how the terminals of equipment are to be used with conductors, and the resulting limitations imposed on those conductors. Avoiding the words "determination" and "determining" increases clarity by avoiding this possible misinterpretation.
 
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