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On Thu, 29 Jun 2023 03:45:42 +1000, Andrew <Andrew97d@btinternet.com
wrote:
On 28/06/2023 12:10, Carlos E.R. wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Walk past any major substation during hot humid weather and the
buzzing is quite alarming.
That\'s not due to surface conductive to ground,
thats due to the transformer laminations.
In alt.home.repair, on Wed, 28 Jun 2023 19:37:47 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
 Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
 Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
Yes, but the water is insulated.
(That\'s why my 8th grade electrical shop teacher said why birds on
powerlines don\'t get electrocuted.)
On Wed, 28 Jun 2023 16:37:35 -0400, micky wrote:
In alt.home.repair, on Wed, 28 Jun 2023 19:37:47 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
Yes, but the water is insulated.
(That\'s why my 8th grade electrical shop teacher said why birds on
powerlines don\'t get electrocuted.)
My 150kV x 0.047uF Capacitor discharges quickly on a damp foggy morning.
Our parrot Quincy loves to be sprayed too. There\'s no hazard from a
nearby outlet.
San Francisco, after very much debate, has just declared the parrot to
be The Official City Animal. We have giant, noisy, obnoxious flocks of
wild parrots here. There\'s a nice movie about that.
On Thu, 29 Jun 2023 15:28:30 -0000 (UTC), jon <jon@nospam.cn> wrote:
On Wed, 28 Jun 2023 16:37:35 -0400, micky wrote:
In alt.home.repair, on Wed, 28 Jun 2023 19:37:47 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
 Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
 Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
Yes, but the water is insulated.
(That\'s why my 8th grade electrical shop teacher said why birds on
powerlines don\'t get electrocuted.)
My 150kV x 0.047uF Capacitor discharges quickly on a damp foggy morning.
How do you make 150 KV? Sounds like fun.
On Thu, 29 Jun 2023 08:42:22 -0700, John Larkin wrote:
On Thu, 29 Jun 2023 15:28:30 -0000 (UTC), jon <jon@nospam.cn> wrote:
On Wed, 28 Jun 2023 16:37:35 -0400, micky wrote:
In alt.home.repair, on Wed, 28 Jun 2023 19:37:47 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
Yes, but the water is insulated.
(That\'s why my 8th grade electrical shop teacher said why birds on
powerlines don\'t get electrocuted.)
My 150kV x 0.047uF Capacitor discharges quickly on a damp foggy morning.
How do you make 150 KV? Sounds like fun.
Multiple doublers.
On Thu, 29 Jun 2023 04:54:19 +1000, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Thu, 29 Jun 2023 03:45:42 +1000, Andrew <Andrew97d@btinternet.com
wrote:
On 28/06/2023 12:10, Carlos E.R. wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Walk past any major substation during hot humid weather and the
buzzing is quite alarming.
That\'s not due to surface conductive to ground,
thats due to the transformer laminations.
The difference should be audible. Transformers hum and corona hisses.
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
 Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
 Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
They use deionised water
In alt.home.repair, on Wed, 28 Jun 2023 10:39:41 +0100, Mark Carver
mark.carver@invalid.invalid> wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
This is what we wash 400KV live line.Hot Line Washing is a process of
cleaning of insulators with the help of DM water /normal water,
conductivity below 200 Micr0-mh0s, under live condition, without asking
for shut down. Factors like salt, cement/lime, smog, vehicular emissions
etc. affect insulator performance.
On Wed, 28 Jun 2023 11:41:06 +0100, alan_m <junk@admac.myzen.co.uk
wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something you
spray plants with), and there was a live wire somewhere in the mist,
could it jump through the spray to a grounded point?
High voltage electric pylons and torrential rain?
Heavy rain will tend to clean the insulators, rather than
inducing tracking.
RL
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Water mist fire suppression systems claim to be suitable for all forms
of domestic fire, including those involving electrical equipment.
On Wed, 28 Jun 2023 10:13:39 +0100, \"Commander Kinsey\"
CK1@nospam.com> wrote:
If there was a fine mist being sprayed (like you get from something you spray plants with), and there was a live wire somewhere in the mist, could it jump through the spray to a grounded point?
Sure, with a lot of voltage, ballpark a megavolt/meter.
There could be a tiny current from droplet drift, too.
On 2023-06-29 05:06, Bob F wrote:
On 6/28/2023 1:37 PM, micky wrote:
In alt.home.repair, on Wed, 28 Jun 2023 19:37:47 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
Yes, but the water is insulated.
(That\'s why my 8th grade electrical shop teacher said why birds on
powerlines don\'t get electrocuted.)
I can tell you from personal experience that birds on transformers can.
And their fellow crows do not like it when they go BANG!
How does that happen?
Strong magnetic field? Touching two cables?
On Thu, 29 Jun 2023 04:54:19 +1000, \"Rod Speed\"
rod.speed.aaa@gmail.com> wrote:
On Thu, 29 Jun 2023 03:45:42 +1000, Andrew <Andrew97d@btinternet.com
wrote:
On 28/06/2023 12:10, Carlos E.R. wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Walk past any major substation during hot humid weather and the
buzzing is quite alarming.
That\'s not due to surface conductive to ground,
thats due to the transformer laminations.
The difference should be audible. Transformers hum and corona hisses.
On 6/29/2023 4:02 AM, Jasen Betts wrote:
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
They use deionised water
I think they just turn power off for that circuit.
They have redundant paths to keep power to customers.
On 2023-06-29 11:01, Jasen Betts wrote:
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
They are shaped like umbrellas so that they stay partly dry when it rains.
If you watch the video, you will see that is not the case.
In alt.home.repair, on Thu, 29 Jun 2023 12:52:23 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-29 11:01, Jasen Betts wrote:
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
They are shaped like umbrellas so that they stay partly dry when it
rains.
If you watch the video, you will see that is not the case.
I watched a composite video today of lots of interesting things, and one
was a couple fire engines pumping water on a fairly big fire.
Between one of the fire engines and the fire were 4 or 5 wires between
\"telephone\" poles. Each wire was almost a foot for any other.
Eventually there was enormous sparking, a bright white spot equivalent
to 3 feet wide that lasted for few seconds followed by flames from the
wires for 3 or 4 more seconds and then the video stopped.
The narrator said 10,000 people lost power but he may have just made
that up.
But still, the fire department should use deionized water.
Maybe that
wodld help.
In alt.home.repair, on Thu, 29 Jun 2023 12:52:23 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-29 11:01, Jasen Betts wrote:
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
 Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
They are shaped like umbrellas so that they stay partly dry when it rains.
If you watch the video, you will see that is not the case.
I watched a composite video today of lots of interesting things, and one
was a couple fire engines pumping water on a fairly big fire.
Between one of the fire engines and the fire were 4 or 5 wires between
\"telephone\" poles. Each wire was almost a foot for any other.
Eventually there was enormous sparking, a bright white spot equivalent
to 3 feet wide that lasted for few seconds followed by flames from the
wires for 3 or 4 more seconds and then the video stopped.
The narrator said 10,000 people lost power but he may have just made
that up.
But still, the fire department should use deionized water. Maybe that
wodld help.
In alt.home.repair, on Thu, 29 Jun 2023 12:52:23 +0200, \"Carlos E.R.\"
robin_listas@es.invalid> wrote:
On 2023-06-29 11:01, Jasen Betts wrote:
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from something
you spray plants with), and there was a live wire somewhere in the
mist, could it jump through the spray to a grounded point?
 Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
They are shaped like umbrellas so that they stay partly dry when it rains.
If you watch the video, you will see that is not the case.
I watched a composite video today of lots of interesting things, and one
was a couple fire engines pumping water on a fairly big fire.
Between one of the fire engines and the fire were 4 or 5 wires between
\"telephone\" poles. Each wire was almost a foot for any other.
Eventually there was enormous sparking, a bright white spot equivalent
to 3 feet wide that lasted for few seconds followed by flames from the
wires for 3 or 4 more seconds and then the video stopped.
The narrator said 10,000 people lost power but he may have just made
that up.
But still, the fire department should use deionized water. Maybe that
wodld help.
On 6/29/2023 4:02 AM, Jasen Betts wrote:
On 2023-06-28, Carlos E.R. <robin_listas@es.invalid> wrote:
On 2023-06-28 18:31, Rod Speed wrote:
On Wed, 28 Jun 2023 21:10:07 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 12:59, Rod Speed wrote:
On Wed, 28 Jun 2023 20:18:00 +1000, Carlos E.R.
robin_listas@es.invalid> wrote:
On 2023-06-28 11:39, Mark Carver wrote:
On 28/06/2023 10:13, Commander Kinsey wrote:
If there was a fine mist being sprayed (like you get from
something you spray plants with), and there was a live wire
somewhere in the mist, could it jump through the spray to a
grounded point?
  Well.....
https://www.youtube.com/watch?v=pU91mxRplu4
What happens when the entire glass insulator is wet? :-?
  Nothing special, most obviously wih the glass insulators
on 350KV and 500KV transmission lines.
Don\'t they become surface conductive to ground?
Nope, if they did, the line would shut down.
But I don\'t understand how it doesn\'t happen. They are throwing water
spray to them, a lot of water, from below. The entire surface of the
glass must be getting wet.
They use deionised water
I think they just turn power off for that circuit. They have redundant
paths to keep power to customers.