Hi Mike, in that patent, it says "The power supply 38 powers the signal processing unit 28. The power supply is powered by the electrical supply 20, via connectors 56. In this example, the power supply is also connected to a functional earth 40 (FE) which allows the electronics to be powered between line and earth whenever the neutral phase is lost (as is acceptable in certain countries eg UK, Ireland Holland)."
This implies a permanent N-E connection on the consumer's installation which surely is against ESQCR 8 (4)-"A consumer shall not combine the neutral and protective functions in a single conductor in their consumer’s installation.
Hi Mike, in that patent, it says "The power supply 38 powers the signal processing unit 28. The power supply is powered by the electrical supply 20, via connectors 56. In this example, the power supply is also connected to a functional earth 40 (FE) which allows the electronics to be powered between line and earth whenever the neutral phase is lost (as is acceptable in certain countries eg UK, Ireland Holland)."
This implies a permanent N-E connection on the consumer's installation which surely is against ESQCR 8 (4)-"A consumer shall not combine the neutral and protective functions in a single conductor in their consumer’s installation.
