Clipsal by Schneider Electric | 20mm Heavy Duty Corrugated Conduit 20m | Electric Orange
The Clipsal 9020CHD20-EO is a heavy duty flexible PVC corrugated conduit measuring 20mm external and 13.4mm internal diameter, supplied on a 20 metre coil. The 9020CHD20-EO is manufactured in electric orange, the identification colour for concealed and buried electrical services. It conforms to AS/NZS 61386 and operates across an ambient range of minus 15 to 60 degrees C.
20mm is the workhorse size for domestic rough-in: lighting circuits, single power points, and the short protected runs that make up most of a house. Specifying heavy duty rather than medium at this diameter matters where the conduit crosses a slab pour or takes a knock during framing, because the thicker wall resists crushing that would otherwise pinch the cable.
The 20 metre coil suits the run lengths this size actually covers, and a smaller coil handles more easily overhead than a larger roll. A 13.4mm internal diameter takes the standard TPS sizes used on lighting and general power subcircuits, while the flexible corrugated wall follows framing and offsets without elbows or heat forming.
Features
- Heavy duty classification — thicker wall than medium duty conduit, rated for concrete encasement and higher mechanical loading.
- 20mm external diameter — the standard domestic rough-in size, matching 20mm couplings, adaptors, saddles, and clips.
- 13.4mm internal diameter — the usable bore, which governs how many conductors the run will carry under cable space and derating rules.
- 20 metre coil — sized to the shorter runs typical at 20mm, and easier to handle overhead than a larger roll.
- Electric orange colour — identifies the run as electrical services when a wall is opened or ground is excavated later.
- Flexible corrugated wall — follows framing, offsets, and bends without elbows, sweeps, or heat forming.
- PVC construction — polyvinyl chloride, the standard material for concealed and buried electrical conduit in Australia.
- Conforms to AS/NZS 61386 — meets the Australian and New Zealand standard for conduit systems in electrical installations.
- Minus 15 to 60 degrees C operating range — covers Australian ambient conditions across slab, wall, and buried applications.
- Fittings not included — couplings, adaptors, saddles, and clips are ordered separately to suit the installation.
- Limited bore at 20mm — the 13.4mm internal diameter restricts this size to lighter circuits, not sub-mains or heavy multicore.
Where to use
- Domestic lighting and power rough-in — the 9020CHD20-EO is the standard size for protected cable runs through framing during construction.
- Wall and ceiling cavities — concealed runs where the flexible wall follows studs, noggins, and joists without fittings.
- Slab penetrations and short encased runs — the heavy duty wall takes concrete placement loading at points where the run enters or crosses a slab.
- Shallow buried runs to garden lighting and outbuildings — orange marking identifies the service on later excavation.
- Renovation and rewire work — protected runs pulled through existing cavities where the route bends around obstacles.
- Single circuit protection — individual lighting or general power circuits where a larger conduit size would be over-specified.
The 9020CHD20-EO is rated to a maximum ambient of 60 degrees C and is not suitable adjacent to flues, high-temperature plant, or roof spaces exceeding that figure. The 13.4mm bore limits cable capacity, so sub-mains and heavier multicore need a larger conduit diameter. Corrugated conduit is not a rigid conduit substitute where a self-supporting run is required.
