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Rcd or not?

grousedogtom · 2012-09-04 21:38:14

Hi,just a quick question , i fit a good few submersible pumps in bored wells where i connect the control box from a local socket that would be fed through an rcd,over time an odd motor in the well will cause the rcd to trip and by taking the pump off the rcd and just leaving it on an mcb it will work away fine for years to…

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#32 24-05-2018 7:07pm
2011

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gilbarry1 wrote: »

ET101 Rule 555.3.2 states:
“A circuit supplying auxiliary equipment associated with water services and water systems (e.g. pumps) shall be protected by an RCD having a rated residual operating current not exceeding 30mA”

Not applicable in this case, here is why:
Rule 555.3.2 is a subset of 555.3 which means that it only applies to "water-heating appliances".

The original question from the OP in the very first post on this thread is about "submersible pumps in bored wells" so an RCD is not a requirement.

As RCD protection is not required by ET101 and direct contact is almost impossible in addition to the reasons I gave in this post I would not supply pumps such as this from an RCD.

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