545.13 Component Interconnections

Fittings and connectors that are intended to be concealed at the time of on-site assembly, where tested, identified, and listed to applicable standards, shall be permitted for on-site interconnection of modules or other building components. Such fittings and connectors shall be equal to the wiring method employed in insulation, temperature rise, and fault-current withstand and shall be capable of enduring the vibration and minor relative motions occurring in the components of manufactured building.

Structural components or modules are usually constructed in manufacturing facilities and then transported over the road to a building site for complete assembly of a structure, such as a dwelling unit, motel, or office building. At the on-site location, approved wiring methods are used to interconnect two or more modules. Exhibit 545.1 shows a type of nonmetallic-sheathed cable connector permitted for such interconnections

[Linked Image from nachi.org]
Exhibit 545.1 A type of nonmetallic-sheathed cable connector used for interconnecting modules in a manufacturing building. (Courtesy of Pass & Seymour/Legrand®)

Are these allowed in other types of construction for industrial, commercial, or residential use?

Courtesy 2005 NECH


[This message has been edited by Joe Tedesco (edited 05-31-2005).]

Joe Tedesco, NEC Consultant