Does Regulation 414.4.5 not apply in the general case where the voltage is less than 25 V AC or 60 V DC … no basic protection (including insulation) is necessary at all …
Basic insulation might be omittable for safety reasons (even if it's almost certainly still needed for functional reasons) - but the words of 521.10.1 still seem to require a sheath (or conduit, ducting or trunking) regardless. Even bare conductors would be unsheathed.
- Andy.
Bare conductors may be installed on insulators … Regulation 521.10.201
I do agree, though … and for fire safety as I've said it may well be necessary even for ELV systems (perhaps more so than LV systems, particularly if the current available is above a few amperes. It's perhaps less likely to be immediately dangerous if ELV …
Does Regulation 414.4.5 not apply in the general case where the voltage is less than 25 V AC or 60 V DC … no basic protection (including insulation) is necessary at all …
Basic insulation might be omittable for safety reasons (even if it's almost certainly still needed for functional reasons) - but the words of 521.10.1 still seem to require a sheath (or conduit, ducting or trunking) regardless. Even bare conductors would be unsheathed.
- Andy.
Bare conductors may be installed on insulators … Regulation 521.10.201
I do agree, though … and for fire safety as I've said it may well be necessary even for ELV systems (perhaps more so than LV systems, particularly if the current available is above a few amperes. It's perhaps less likely to be immediately dangerous if ELV …
