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Too Modest

Former Community Member over 4 years ago

If it can be demonstrated to the scientific community/press/public at large that "the RCD will trip or nary a tingle will be felt", then CBE's, MBE's, Knighthoods or perhaps a Nobel prize will be sure to follow!

This is surely the biggest step forward in Electrical safety since the invention of fuse wire!

In these bleak times the British public needs to hear good news like this.

0 Rob Eagle over 4 years ago

The graph show the effect of current on the body not voltage, the voltage is irrelevant. The title of the graph explains it perfectly well.
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0 Former Community Member over 4 years ago

Lisa Miles:

Hi Coby

A number of replies have been removed by the moderators as they served no purpose and brought no value to this discussion and were also not aligned with our forum etiquette. Moderators will not always inform community members of every moderation decision that takes place unless it is deemed a severe breach of the T&Cs, etiquette or the IET rules of conduct.

Please also bear in mind that community members have the ability to delete and edit their own posts as well.

Hope that helps?

Lisa

I didn't think it was possible to delete an entry once someone had followed it with another entry.

Who decided what and what did not serve a purpose or bring value?
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0 Former Community Member over 4 years ago

Rob Eagle:

The graph show the effect of current on the body not voltage, the voltage is irrelevant. The title of the graph explains it perfectly well.

How can voltage be irrelevant Rob?

What if the graph is in truth depicting 24v AC?
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0 Rob Eagle over 4 years ago

The voltage will be whatever is required to cause the required test current to flow, whether it be 24V or 240V will depend upon the resistance of the current path which in this case is from the left hand to feet. Ohms law basically.
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0 Former Community Member over 4 years ago

Rob Eagle:

The voltage will be whatever is required to cause the required test current to flow, whether it be 24V or 240V will depend upon the resistance of the current path which in this case is from the left hand to feet. Ohms law basically.

The electric eel kills quickly and efficiently at a potential difference of 240v.

If mother nature had supplied an electric eel with a potential difference of 24v or even 2.4v, it would have to spend its' entire life chasing the same fish around the ocean floor trying to tickle it to death!

Or:

Imagine the human body as a resistance; what happens when you supply a 110v lamp with 230v?
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0 Rob Eagle over 4 years ago

Simple, more current flows, as I said, it’s Ohms law.

I think you’re getting yourself a little confused here, the graph shows the effect of current through the human body over time not voltage, the voltage applied to the body during the test will be whatever voltage is required to make that current flow, whether it be 20V or 2,000V.
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0 Rob Eagle over 4 years ago

As the graph shows.
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0 Former Community Member over 4 years ago

Rob Eagle:

As the graph shows.

But if the supply voltage is only 2.4v through a resistance as large as the human body, it is going to take an eternity to generate 30mA.
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0 Former Community Member over 4 years ago

230v mains power takes less than 0.04 of a second to generate 30mA.
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0 Rob Eagle over 4 years ago

I think you’ll find it’s a lot bloody quicker than that! Try the speed of light and you will be closer.

I get the feeling there is a big gap in your knowledge of electricity.
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Too Modest

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