ᐅ Connecting a Washing Machine and Dishwasher Above a Junction Box (T15)
Created on: 23 Aug 2015 12:13
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blnzrh-1
Dear homebuilding enthusiasts,
I have a question regarding an electrical installation in our house and hope an electrician among you can tell me if this could work:
We want to operate a washing machine (220V) and a dishwasher (220V) in the kitchen simultaneously. My question concerns the power connection to an existing T15 outlet (dual 10A circuit protection). Our plumber suggested connecting both appliances via a shared T15 plug: that is, appliance 1 connected to L1, appliance 2 to L2, and both devices sharing the neutral conductor.
This way, no new outlet would be needed, both appliances would be individually protected since they run on separate L1 and L2 lines, but they would share the neutral conductor. Would this be a problem?
What do you think?
Thank you very much for your feedback and best regards,
Stephan
I have a question regarding an electrical installation in our house and hope an electrician among you can tell me if this could work:
We want to operate a washing machine (220V) and a dishwasher (220V) in the kitchen simultaneously. My question concerns the power connection to an existing T15 outlet (dual 10A circuit protection). Our plumber suggested connecting both appliances via a shared T15 plug: that is, appliance 1 connected to L1, appliance 2 to L2, and both devices sharing the neutral conductor.
This way, no new outlet would be needed, both appliances would be individually protected since they run on separate L1 and L2 lines, but they would share the neutral conductor. Would this be a problem?
What do you think?
Thank you very much for your feedback and best regards,
Stephan
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marko777-118 Oct 2015 23:22The easiest solution is to replace socket T15 with a 3xT13 (separated).
This way, you can plug in three devices, each with its own live conductor.
The neutral conductor is shared among all three.
This way, you can plug in three devices, each with its own live conductor.
The neutral conductor is shared among all three.
marko777 schrieb:
The easiest way is a T15 socket with three separate T13 connectors for replacement. This way, you can plug in three devices, each with its own live conductor. The neutral conductor is shared among all three.This is a good option and can be done relatively quickly. If this socket is surface-mounted, it can be completed in just a few minutes.
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Karl-Steffen-130 Dec 2015 11:57Yes, that would also be my approach, connecting the individual devices separately. Using a junction box seems too risky to me, especially with these machines.
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sueandjoe-130 Dec 2015 20:20marko777 schrieb:
The easiest solution is a T15 socket with three separate T13 outlets to replace it. This way, you can plug in three devices, each having its own live conductor. The neutral conductor is shared among all three. This is unfortunately prohibited.
Although triple separated 3xT13 sockets do exist, they are only approved for operation on the same live conductor (for 2-3 light switch groups on the same circuit breaker).
If the live conductors need to be split, this must be done using individual sockets.
The reason is that the internal neutral bridging in triple sockets is not designed to carry high neutral currents (which can occur with three-phase operation involving inductive and capacitive loads).
Such an installation violates the manufacturer’s specifications, electrical codes, and therefore also creates insurance issues in case of damage.
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