This is a 50 year old installation with existing vertical steel ova
conduits to sockets plastered into the walls. The rubber(!) cabl enters from above and there is a grommet inserted into each of th conduits to prevent damage to the cables.
Now if rewired with PVC sheathed cable, then a) Can I re-use the steel conduit? b) Where can I get suitable grommets? These are top hat shaped wit central hole for the cable. c) The recessed steel boxes do not have an earth connection. Can on be fitted or is it better to replace each box?
Many thanks
-- MisterP