Conduit vs Flexible conduit

[Chaz]

Hi all, basic question.

Cat A wiring system, "heavy duty insulating conduit", can heavy duty flex conduit be used?

I see there a few standards operating in parallel atm with regards to conduits etc.

But if labelled HD and compiles with AS/NZS2053 then no issue? IE Marley solar conduit?

Cheers

[AlecK]

"Heavy duty" and 'flexible" are two completely different aspects
some conduit is HD.
some conduit is flexible.
Some is both.
And some is neither

[Chaz]

Hahaha, great response.

Cheers Alec.

[AlecK]

Some people think that orange"high impact" conduit is HD.
It's not.
It's classified as MD, albeit having more impact resistance than the grey version.
It is intended for u/g use; and has less UV resistance than the grey.
When used above ground & exposed to sunlight, it breaks down and becomes brittle.