This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

PROTECTIVE EQUIPOTENTIAL BONDING. 411.3.1.2

"Dad?"

"Yes son"

"Have you noticed the extra words added to the bonding regulation, 411.3.1.2?"

"No, what are they?"

"The regulation now says with regard to extraneous-conductive-parts, they need bonding if they are LIABLE TO INTRODUCE A DANGEROUS POTENTIAL DIFFERENCE"

"Why have those words been added Dad?"

Z.

Parents
  • What level of voltage is dangerous Zoom? or can we turn it round and say what voltage is safe? Answer -Zero Volts. Equalise yer voltages as far as possible and you are relatively safe in that respect. I suppose those added words do not really change the intention but merely enhances the meaning of things to the unwary

  • The expression needs expanding as on its own it is meaningless. How can an extraneous-conductive- part introduce a dangerous potential difference into an installation? It is normally at Earth potential.

    Z.

  • What about a lost neutral? If everything else is getting on for 230 V, the kitchen tap at 0 V introduces a dangerous potential difference unless it is bonded.

Reply
  • What about a lost neutral? If everything else is getting on for 230 V, the kitchen tap at 0 V introduces a dangerous potential difference unless it is bonded.

Children
  • Or the extraneous-conductive-part may export your 230/240 Volts to the outside. DANGER.

    Z.