How to terminate 20mm PVC conduit into a back box/socket - preferred method, whilst maintaing IP rating ?

[pc1966]

Have you the correct name of the "round cable like Flexishield" ?

Just to add you can get others that are round and suited to outdoor use. For example NYY-J style is like armoured cable but without the armour (so can be used with plastic glands, etc, as no need to earth the armour), it is fairly tough / stiff and suited to may locations where damage is not too likely.

Another is H07RN-F flexible cable, it is easy to work with but as fine stranded not really intended for fixed wiring, the cable ends need ferrules in most cases, and due to is flexibility it never looks as neat clipped to a wall, etc.