Hi Chris, the installation is a location where BE2 conditions exist. Are you asking if there’s a Three-phase voltage imbalance, not 120 degrees apart ? The 5.5 kW motor are all leaking 13.5 mA and the 1.1 kW is 7.8 mA. But you are right, it is possible that there is a somewhat intermittent fault that produces more imbalance at times, such as a loose connection, a damaged cable, or a faulty component. Is Baize used for snooker tables ? And the manufacturer specified RCD fire protection.

AMK said:

Is Baize used for snooker tables ?

Yes indeed and for covering doors. IIRC, the cloth is trimmed during its manufacture which must produce a lot of dust.

P.S. Strictly speaking, snooker is a game which is played on a billiard table.

They haven't let Gregg Wallace into the factory, have they?

Snooker table round our way. Inside the Factory ? Did Gregg Wallace’s lack knowledge when it came to the correct terminology? Sorry the irony and sarcasm is wasted on me.

Oh dear!

Gregg Wallace is a rather endearing bald greengrocer who has turned into a TV presenter.

Neither irony nor sarcasm, but pedantry. Billiards existed long before snooker originated about 150 years ago. However, I can see its popularity, which only really started after the Beeb started showing it on the made-for-TV, Pot Black in 1969. Clearly, viewers had to be able to see the colour of the balls, whereas only the distinction of red and white was obvious in B&W (not that billiards was shown very often). Ted Lowe did his best when he said, "Steve [Davis] is going for the pink ball - and for those of you who are watching in black and white, the pink is next to the green."

Chris Pearson said:

and for those of you who are watching in black and white, the pink is next to the green."

That has been quoted many times.  I still find it funny.

It is almost a Michael Fish moment

public forecasts, on any topic, which turn out to be embarrassingly wrong

October 1987 storm