supply to 3 phase commando socket

[333rocky333]

something not right here

Untitled

• 333rocky333
• 25 Jul 2008
• 1

Untitled

• 333rocky333
• 25 Jul 2008
• 1

Untitled

• 333rocky333
• 25 Jul 2008
• 1

 

[RF Lighting]

Am I missing something obvious?

All I can spot is the dodgy connection on the outgoing L2 connection.

 

[ColJack]

you mean besides the missing earth?

 

[RF Lighting]

Oh yeah

 

[ColJack]

and the phase identification on the incomming and outgoing phases?

 

[Wontdothatagain]

try this one

Untitled

• Wontdothatagain
• 25 Jul 2008
• 2

We came across it during a periodic and could not make the RCD trip.

 

[oharaf]

WDTA

If the RCD wouldn't trip then that suggests a possible lack of earth??

So that nice bit of green and yellow going into a 'terminal block' is that as

far as it got?

 

[Wontdothatagain]

That was as far as it went.
The choc block did have a flylead in in but it was just tucked into the back of the box.

 

[ColJack]

I was thinking the missing neutral.. or don't you need a neutral on a 3 phase rcd?

 

[Spark123]

Nope, you don't need a neutral
The appliance will connect across 2 or 3 of the phases. There shouldn't be a neutral pin on the socket - it should be a 3p+e outlet.

 

[Lectrician]

Nope, you don't need a neutral
The appliance will connect across 2 or 3 of the phases. There shouldn't be a neutral pin on the socket - it should be a 3p+e outlet.

You need a neutral for the test button to work though!

 

[Fuseblower]

.

You need a neutral for the test button to work though!

Nope!
Look at the internal circuit diagram on the front of the RCD in the picture posted by "wontdothatagain"

BTW looking at that pic. The connections from the incoming supply cable is a bit shoddy.

Regards FB

 

[Grizzly]

Nope, you don't need a neutral
The appliance will connect across 2 or 3 of the phases. There shouldn't be a neutral pin on the socket - it should be a 3p+e outlet.

Only correct for Delta.
If it's Star, then it deffo needs a neutral.

 

[Fuseblower]

Nope, you don't need a neutral
The appliance will connect across 2 or 3 of the phases. There shouldn't be a neutral pin on the socket - it should be a 3p+e outlet.

Only correct for Delta.
If it's Star, then it deffo needs a neutral.

No it doesn't
Where would you connect the Neutral on this motor then ?

Motor connections 3 phase

• Fuseblower
• 26 Jul 2008
• 1

 

[Grizzly]

http://www.apcs.net.au/kn/kn20016/kn20016.html#3-pwatt