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VIRTUAL ELEX SHOW IET PRESENTATION

John Peckham
Good afternoon All


As the IET have not been able to do face to face Elex shows the organisers of the Elex shows have come up with the idea of a virtual Elex show. The IET are keen to contribute to the virtual show and are going to film a webinar using the same sort of format as the live shows.


Following the live show format the IET are going to present 2 topics. The chosen topics from the feedback from the live show audiences are PME earthing and bonding and EV charging.


So if you were in the live audience what questions would you like to ask? Post them on here and I will feed them back to the IET presenters to answer in the Q&A session?


The downside is no free bacon roll I am sorry to say!


JP

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  • 0
    I’m not sure that’s a fair question to be asking the IET, AJ. They can’t be responsible for how legal documents are framed.

    However, your question does raise a point about accepting the safety of using 722.411.4.1 (iv) as a stand-alone measure to counter open pen conditions. I am unsure as to how or when the IET arrived at the conclusion that voltage measurement could be regarded as acceptable. A wide ranging test commissioned by Myenergi showed that out of 10000 open pen situations 10% resulted in dangerous voltages from car to ground that would not have been detected by voltage measurement only. 

    I will endeavour to dig up the reference.

    edit to add the obvious: should 722.411.4.1(iv) be reviewed in light of this test.
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  • 0
    I’m not sure that’s a fair question to be asking the IET, AJ. They can’t be responsible for how legal documents are framed.

    However, your question does raise a point about accepting the safety of using 722.411.4.1 (iv) as a stand-alone measure to counter open pen conditions. I am unsure as to how or when the IET arrived at the conclusion that voltage measurement could be regarded as acceptable. A wide ranging test commissioned by Myenergi showed that out of 10000 open pen situations 10% resulted in dangerous voltages from car to ground that would not have been detected by voltage measurement only. 

    I will endeavour to dig up the reference.

    edit to add the obvious: should 722.411.4.1(iv) be reviewed in light of this test.
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