Change from batten globe to light fitting with 3 wires

[FrodoOne]

NOT as in either Post #14 or #15 .
In BOTH cases that is switching the Neutral !

The correct connections were given in Post #13.

(connect the single (Red) conductor "Cable" (at the ceiling) to the fitting's Line conductor, (Brown)
connect the Neutral (Black) conductor of the incoming Line, Neutral an Earth cable to the fitting's Neutral conductor (Blue),
(disconnect the single (Black) conductor "Cable")
connect the Earth (Green/Yellow) conductor of the incoming Line, Neutral an Earth cable the fitting's Earth conductor
and
terminate/isolate the (apparently unused) Red conductor of the incoming Line, Neutral an Earth cable in a suitable "connector".

The single (Black) conductor "Cable" seems to go nowhere (except to a Loop terminal on the Switch) and does nothing !?!?!)

I have not got time to draw the connections until later today when I hope to do so.

 

[FrodoOne]

Diagram of changes required is attached.

I apologize that my printer is having a "problem" and the printout was somewhat blurred.

 

[Gtp71]

Diagram of changes required is attached.

View attachment 382761

I apologize that my printer is having a "problem" and the printout was somewhat blurred.

Really appreciate your help, just curious if the single black was never used why it would have been connected with the neutral in the original bayonet and should it be left connected to the switch and terminated?

 

[FrodoOne]

if the single black was never used why it would have been connected with the neutral in the original bayonet

As I wrote, in Post #13 :-
"The single (Black) conductor "Cable" seems to go nowhere (except to a Loop terminal on the Switch) and does nothing !?!?!
One wonders, who wired this up in this manner - and why?"

should it be left connected to the switch and terminated?

It serves no purpose, as it is.
It is connected to the Loop terminal at the Switch and connects to nothing else at that end.

It would have a use only if one required a Neutral at the Switch - for a Device which required both a Line and Neutral connection to operate.

 

[Gtp71]

As I wrote, in Post #13 :-
"The single (Black) conductor "Cable" seems to go nowhere (except to a Loop terminal on the Switch) and does nothing !?!?!
One wonders, who wired this up in this manner - and why?"

It serves no purpose, as it is.
It is connected to the Loop terminal at the Switch and connects to nothing else at that end.

It would have a use only if one required a Neutral at the Switch - for a Device which required both a Line and Neutral connection to operate.

Again, thanks for your time and patience. The original wiring with that single black cable running to the switch was a brand new home build in 2024 by presumably qualified tradespeople

 

[FrodoOne]

Again, thanks for your time and patience. The original wiring with that single black cable running to the switch was a brand new home build in 2024 by presumably qualified tradespeople

Regulations in North America NOW require that a Neutral connection to be "available" at each lighting Switch Point,
in case a Neutral connection at that point is ever required in the future
for any new Device - such as some "Intelligent" Dimmers.

It my be that the original installer was aware of this
and
installed the Neutral connection - ahead of any possible future change in the Australian "Wiring Rules" (AS 3000),
or "need".

It may be of interest for you to check other Lighting Switch-Points in your house,
to see if (unnecessary [?]) Neutral connections have also been provided at these Points.

 

[Gtp71]

Regulations in North America NOW require that a Neutral connection to be "available" at each lighting Switch Point,
in case a Neutral connection at that point is ever required in the future
for any new Device - such as some "Intelligent" Dimmers.

It my be that the original installer was aware of this
and
installed the Neutral connection - ahead of any possible future change in the Australian "Wiring Rules" (AS 3000),
or "need".

It may be of interest for you to check other Lighting Switch-Points in your house,
to see if (unnecessary [?]) Neutral connections have also been provided at these Points.

It is now working

The only thing I did notice is that the single black back to the switch is live when the switch is turned on so I will terminate that in an appropriate connector so it can’t touch anything in the roof if this sounds right.

Don’t understand if it’s just in a loop at the switch why it becomes live when the switch is turned on

 

[FrodoOne]

The only thing I did notice is that the single black back to the switch is live when the switch is turned on so I will terminate that in an appropriate connector so it can’t touch anything in the roof if this sounds right.

Don’t understand if it’s just in a loop at the switch why it becomes live when the switch is turned on

How did you "test" it?
A non-contact Voltage-Tester may give you a false indication.

Test only with a Low Impedance Voltmeter between Neutral and Earth -
and Neutral an Line.

 

[Gtp71]

How did you "test" it?
A non-contact Voltage-Tester may give you a false indication.

Test only with a Low Impedance Voltmeter between Neutral and Earth -
and Neutral an Line.

Yes it was non contact away from any other wires, however as you mentioned this may not be accurate.

Once again, Thankyou soo much for your help

 

[Gtp71]

Yes it was non contact away from any other wires, however as you mentioned this may not be accurate.

Once again, Thankyou soo much for your help

Also that said when the 2 reds were connected the red was testing live and black dead with non contact.