Gluing PVC conduit

[T-Wragg]

I just had a conversation with another electrician who said that PVC conduit had to be properly supported based on the spacing dictated in the code but it is not required to be glued. I was under the impression that it had to be glued to be considered to be a complete conduit system. Is it required to be glued? Thanks

 

[tkb]

I think he has been sniffing the glue.

352.48 Joints

​

​

​

​

​

​

All joints between lengths of conduit, and between conduit
and couplings, fittings, and boxes, shall be made by an approved​

method.

Rigid Nonmetallic Schedule 40 and Schedule 80

PVC Conduit (DZYR)
[Rigid nonmetallic] Schedule 40 conduit is suitable for
underground use by direct burial or encasement in concrete.
Schedule 40 conduit is also suitable for aboveground
use indoors or outdoors exposed to sunlight and
weather where not subject to physical damage.
Schedule 80 conduit has a reduced cross-sectional
area available for wiring space and is suitable for use
wherever Schedule 40 conduit may be used. The marking
“Schedule 80 PVC” identifies conduit suitable for
use where exposed to physical damage and for installation ​

on poles in accordance with [352.10(F) and352.12(C) of the] NEC.

Unless marked for higher temperature, rigid nonmetallic

conduit is intended for use with wire rated 75?C or

less including where it is encased in concrete within
buildings and where ambient temperature is 50?C or less.
Where encased in concrete in trenches outside of buildings​

​

​

it is suitable for use with wires rated 90?C or less.​

Listed PVC conduit is inherently resistant to atmosphere​

containing common industrial corrosive agents

and will also withstand vapors or mist of caustic, pickling
acids, plating bath and hydrofluoric and chromic acids.​

​

​

PVC conduit and elbows [and bends] (including

couplings) that have been investigated for direct exposure

to other reagents may be identified by the designation
“Reagent Resistant” printed on the surface of the
product. [Further information on reagent resistance may
be found in the UL ​

​

Electrical Construction Materials Directory ​

​

and in ANSI/UL 651, Schedule 40 and 80 Rigid PVC Conduit.]

PVC conduit is designed for connection to couplings,

fittings, and boxes by the use of a suitable

solvent-type cement. Instructions supplied by the solvent-
type cement manufacturer describe the method of
assembly and precautions to be followed. [Fittings for
use with Rigid Polyvinyl Chloride Conduit: Type PVC
are covered under UL category (DWTT) Conduit Fittings.]​

​

​

​

​

​

​

​