2 electric showers

[ban-all-sheds]

Yup, if they did manage to close them at exactly the same time.

And what would happen?

 

[sparkyspike]

I don't know. I suspect it would be a race for the line.

 

[sparkyspike]

Oh, hang on..

 

[ban-all-sheds]

You can just hear that rapid chattering, can't you...

 

[sparkyspike]

A bit like an alarm bell

 

[sparkyspike]

And I can smell the contacts welding themselves together...

 

[ban-all-sheds]

.
.
http://205.243.100.155/frames/mpg/XfrmBlast1.mpg
.
.

 

[ban-all-sheds]

Anyway - who's worked out how to avoid that problem?

 

[sparkyspike]

Well the power off problem can be solved, not sure about the simultaneous switching though.

 

[sparkyspike]

Unless you use 2 way switching.

 

[ban-all-sheds]

Put a delay timer in the switched live from one of the switches.

 

[sparkyspike]

I thought about that. Would it not still be possible to simultaneously operate the contactors at the same time?

 

[ban-all-sheds]

Yes, if someone pulled the non-delayed switch exactly the right amount of time after the delayed one was pulled.

So unlikely though. But it would remove the power restore problem where you could start out with both of them closed.

 

[sparkyspike]

I was thinking of one contactor being normally open and the other normally closed. Then use 2 way pull cords to turn the power to both contactors on or off.



I'm off to bed.

 

[tSpark]

I've got it, fit two showers but just give them one shower head!