I am confused! So this “filler” that surrounds the wire armour is of insufficient construction to regard the wire armour as not being an exposed conductive part. OK, let’s accept that argument, so it is an exposed conductive part. Does that mean that we have an issue with all those early EVSE points wired in SWA with the wire armour connected to the PME terminal but separated from the TT earth at the EVSE as we are breaching 411.3.1.1?
Should be installed with gapping and insulation as I have suggested.
I've seen a number of situations like this, were metal glands are used to terminate TN-S or TN-C-S cable, that then is used for TT. The glands must not be simultaneously accessible with exposed-conductive-parts of the TT system, as you point out. The application of appropriate insulation, such as cold shrink sleeving, and the use of gland separators and plastic enclosures, is entirely reasonable, feasible, and meets the requirements.
I am confused! So this “filler” that surrounds the wire armour is of insufficient construction to regard the wire armour as not being an exposed conductive part. OK, let’s accept that argument, so it is an exposed conductive part. Does that mean that we have an issue with all those early EVSE points wired in SWA with the wire armour connected to the PME terminal but separated from the TT earth at the EVSE as we are breaching 411.3.1.1?
Should be installed with gapping and insulation as I have suggested.
I've seen a number of situations like this, were metal glands are used to terminate TN-S or TN-C-S cable, that then is used for TT. The glands must not be simultaneously accessible with exposed-conductive-parts of the TT system, as you point out. The application of appropriate insulation, such as cold shrink sleeving, and the use of gland separators and plastic enclosures, is entirely reasonable, feasible, and meets the requirements.
