Re: Lightning & Bathtubs

On Jun 6, 2:37 pm, dnoyeB <as...@xxxxxxxx> wrote:
Stopping is an impossible claim. Unless it chases away the clouds...

Reasons posted were same reasons promoted the ESE protection
industry. That industry says pointed rods that discharge air will
then prevent lightning.

Meanwhile, research demonstrates that blunt rods are better
protectors than pointed ones. But both are irrelevant. That
lightning rod is made effective by its earthing.

For example, a FL couple suffered direct lightning strikes to an
exterior wall. They installed lightning rods. Lightning instead
struck that exterior wall again. Why? Bathroom plumbing connected to
deeper and more conductive earth. Lightning rods were only connected
to 8 foot rods in sand. Lightning seeks the better earth ground -
that plumbing inside the wall. To make lightning rods effective - too
divert lightning to earth on circuits that are not destructive - those
lightning rods must be connected (earthed) to better conductive soil
beneath the sand.

Just like in protectors - the lightning rod is only as effective as
its earth ground. Earth ground (not the lightning rod and not the
protector) provides protection.

Where he realizes it or not, dnoyeB posted ESE industry reasoning
that was roundly rejected by the National Fire Protection Association
- who write the National Electrical Code. ESE industry claims to stop
lightning by discharging the air.

What makes a shower safe from lightning? Need lightning pass
through a bathroom to obtain earth ground? If not, then any incoming
lightning path has been properly bonded (connected) to earth ground so
that lightning is diverted (non-destructively) into earth. What makes
that earthed connection better? Shorter wire. No sharp bends. Not
inside metallic conduit. Separated from other non-grounding wires.
Etc.

Protection has always been about diverting lightning into earth
where energy is harmlessly dissipated. Any protector or lightning rod
that does not dissipate lightning harmlessly in earth is not effective
and violates the science as even demonstrated by Franklin in 1752.
Where is that energy dissipated? That is what provides protection.
.

Relevant Pages

  • Re: Lightning Damage
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    (sci.astro.amateur)
  • Re: Weather Station and Lighting
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  • Re: MT nightmare
    ... rods are not protection. ... protection - earth ground. ... Lightning seeks earth ground. ...
    (sci.med.transcription)
  • Re: Lightning immunity for a computer connected to a weather station?
    ... computer must first connect down to earth ground. ... so that lightning strikes are made irrelevant. ... a 4 wire cable - not a 3 wire). ... Lightning will overwhelm that protection - again - ...
    (sci.electronics.design)