Bathroom Fan. Help. studying City and Guilds

[eleanor jones]

Hi. I have decided to put working fans in my bathrooms., replacing old ones which have not worked for years.
The trouble is I believe it is a ring circuit, incorperating the lights and fans.
One side of the ring cable connecting to this fan, had CPC Line and neutral, the other only CPC and line. No neutral cable at all.
This does not look right to me, Advise please?

 

[Nobbin]

Hmmm! Not been here long enough to know but are there a lot of "kiss and runs" like this?

 

[mattg4321]

A lot of people who are economical with the truth yes