scope:

These requirements cover:

a) Type EB and Type A extruded rigid PVC (polyvinyl chloride) electrical conduit and fittings consisting of elbows and other

bends made from and for use with these types of conduit.

b) Extruded ridge Schedule 40 high-density PE (polyethylene)

electrical conduit and the following fittings:

1) Elbows and other bends from and for use with this

conduit and

2) Rigid high-density PE couplings for use with this conduit.

The designations "Type EB", "Type A", and "Schedule 40" refer to USA trade sizes of conduit having iron-pipe size outside diameters and

specific wall thicknesses.

The PVC and PE conduit and fittings mentioned in 1.1 are intended for use

at 50 degrees C (122 degrees F) and lower ambient temperatures. Type A PVC conduit and fittings and Schedule 40 PE conduit and fittings are intended for use with 75 degrees C (167 degrees F) wiring. Type A and Type EB PVC conduit and fittings, where encased in concrete in trenches outside of buildings, may be used with 90 degrees C (194 degrees F) wiring. Schedule 40 PE conduit and fittings, where directly buried or encased in concrete in trenches outside of buildings, may be used with

90 degrees C (194 degrees F) wiring.

The conduit and fittings covered in these requirements are intended for

use as rigid nonmetallic raceway for wires and cables in accordance with the National Electrical Code.

Type EB (encased burial) PVC conduit is intended for encasement in concrete in trenches outside of buildings. Type A PVC conduit is

intended for encasement in concrete in and location.

Unless the wording of a requirement that applies to PVC conduit and

fittings specifically limits the requirement to Type EB or to Type A,

each such requirement in this standard applies to both types.

Outlet boxes and covers that are rigid PVC or of another nonmetalic

material and are for use with the rigid PVC conduit and fittings covered in these requirements are covered separately in the Standard for

Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers, UL 514C.

Couplings, adapters, and similar fittings that are of rigid PVC and are

for use with the rigid conduit and fittings covered in these requirements are covered separately in the Standard for Nonmetallic

Outlet Boxes, Flush Device Boxes, and Covers, UL 514C.

Schedule 40 and Schedule 80 rigid PVC electrical conduit and fittings

consisting of elbows and other bends made from and for use with this conduit are covered separately in the Standard for Schedule 40 and 80