Is there a constructional standard for those cables? If not, see Regulation Group 511 and associated notes ... and also therefore it is unlikely to be included in BS 7671. See Table 4A3, all cables listed have a constructional standard associated with them.
Appendix 4 doesn't have full information for a number of types of cables in common usage including:
SWA where the armour is used as cpc, or is connected in parallel with internal or external cpc.
H1Z2Z2-K (BS EN 60618 Solar PV cable)
There are descriptions about how the tables can be used for cables with similar construction (e.g. see item 2.4 in Appendix 4) ... but of course there are limitations.
Is there a constructional standard for those cables? If not, see Regulation Group 511 and associated notes ... and also therefore it is unlikely to be included in BS 7671. See Table 4A3, all cables listed have a constructional standard associated with them.
Appendix 4 doesn't have full information for a number of types of cables in common usage including:
SWA where the armour is used as cpc, or is connected in parallel with internal or external cpc.
H1Z2Z2-K (BS EN 60618 Solar PV cable)
There are descriptions about how the tables can be used for cables with similar construction (e.g. see item 2.4 in Appendix 4) ... but of course there are limitations.
