Nonmetallic Mechanical Protection Tubing (NMPT)
UL 1696
1 Scope
1.1 This Standard applies to nonmetallic mechanical protection tubing (NMPT) and fittings for use as support and protection of insulated conductors in equipment intended for use in non-hazardous locations.
1.2 Tubing specified by this Standard is intended for use with fittings in compliance with Clause 4.3. The fittings may be for wet or dry locations.
1.3 This Standard does not include tubing used to supply power from the fixed wiring of structures to utilization equipment.