|
Base Material |
Rigid polyvinyl
chloride (PVC) |
PVC-based flexible
conduit construction |
High-density
polyethylene (HDPE) |
|---|
|
Typical Construction |
Rigid, commonly
smooth-wall
conduit |
Flexible conduit;
construction may
be corrugated
or otherwise
profile-dependent |
Smooth-wall or
structured-wall
duct, depending
on the specification |
|---|
|
Supply Form |
Straight lengths |
Commonly supplied
in coils |
Coils or straight
lengths depending
on duct type
and dimensions |
|---|
|
Typical Application |
Suitable building
electrical wiring
installations |
Suitable flexible
cable routing
and wiring
protection |
Underground cable
routing and
infrastructure
duct systems |
|---|
|
Installation Method |
Surface-mounted
or concealed
installations
where permitted
by the product
classification
and local code |
Installations
requiring bends
or flexibility,
subject to
conduit classification |
Direct burial,
duct banks
or other
specified underground
arrangements,
subject to
product suitability |
|---|
|
Dimensions to Confirm |
Nominal size,
outside diameter,
wall thickness
and length |
Nominal size,
internal diameter,
external diameter
and coil length |
OD/ID designation,
wall thickness
or duct structure,
and length |
|---|
|
Mechanical Requirements |
Compression,
impact and
other applicable
classification
requirements |
Compression,
impact, flexibility
and bend-related
requirements
as applicable |
Ring stiffness,
crush resistance
or other specified
mechanical performance
criteria |
|---|
|
Connections & Accessories |
Compatible couplers,
bends, fittings
and boxes |
Compatible connectors,
adaptors and
termination fittings |
Suitable couplers,
joints and
duct accessories |
|---|
|
Standards to Review |
Applicable parts
of IEC 61386,
local electrical
codes and
market-specific
requirements |
Applicable parts
of IEC 61386,
relevant conduit
classifications
and local codes |
Project-specified
duct standards,
relevant material
or performance
requirements
and local utility
specifications |
|---|
|
Procurement Details |
Size, length,
classification,
color, quantity
and destination |
Size, coil length,
flexibility class,
construction,
quantity and destination |
Duct dimensions,
construction,
mechanical class,
length, quantity
and destination |
|---|