Fleeting

No.

Assuming this is T&E the cable would require protection from solar damage and possible mechanical damage. Does the circuit have 30ma RCD...

Make a Rudolf 😀

How are Shell involved? What do Garo say?

That is a poor attempt at electrifying. That cable should have restraint where it enters to prevent undue stress on the lamp...

Where did it come from? Is the cable protected/restrained where it enters the bottom? Using three core cable and cutting the earth off...

Is the lamp holder brass? Did it come from a reputable seller?

Where are you measuring this live to earth?

Thank you for your patience, I really appreciate your help, that makes so much sense

You need something like this.

Try to look at it like the em lighting is a separate part of the circuit. Take the live to the COM of the test facility then from L1 to...

Change your PL and SL around on the drawing. The test facility only needs to switch the PL and should be closed in normal use.

surely SL should be through the photocell and PL just straight through /isolated by the key switch.

Well it did for 0.001 seconds 🤣🤣🤣

Did it work?