well i would say there fine to use but im not a guru on the regs but to my knowledge as i said before the bigger the KA of the breaker the more fault current they will handle before blowing up so the bigger the KA the better the breaker.
@jakethesnake 188.8.131.52 Note 3. Had to look that up. Still have to comply with volt drop etc but with small loads long runs are possible. Even then, the volt drop can be less than expected. Let’s say you had 10 lights 10 metres apart, by the time you have gone halfway you have eliminated half the load. So theoretically you should calculate volt drop for each 10 metre section of cable, or average it out for each light
While I was looking for something else I came across this in the FAQ. Maybe instead of earthing the stud frame?
FAQ 031/2009: AS/NZS 3000:2007—CLAUSE 184.108.40.206
220.127.116.11 Structural metalwork including conductive building materials –
Domestic electrical installations
Question 031/2009: Is it necessary to earth individual lintels, posts, metal window frames and steel trusses mounted on timber walls?
No. However, shrouding may be required where terminations to electrical equipment cannot maintain double insulation when they are in close proximity to conductive building materials. (See Clause 18.104.22.168)