Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

Scott wrote:

My question is why the RCBO did not trip.

They need to see 30mA to trip, given Clive's reaction to 13mA

https://youtu.be/-5R-KBa18ME?t=1493

your "slight tingle" was presumably lower than that?

On 19/03/2019 17:30, Scott wrote:
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

A slight tingle is very probably much less than 30mA, so a 30mA RCD
won't trip - 1mA is often taken to be the smallest you can feel.

30mA would be quite painful, though with an RCD not for long, and you're
far more likely to injure yourself when you fall off the ladder or drop
the circular saw on your foot than from the shock itself.

Cheers
--
Clive

On Tue, 19 Mar 2019 17:54:00 +0000, Clive Arthur
wrote:

On 19/03/2019 17:30, Scott wrote:
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

A slight tingle is very probably much less than 30mA, so a 30mA RCD
won't trip - 1mA is often taken to be the smallest you can feel.

30mA would be quite painful, though with an RCD not for long, and you're
far more likely to injure yourself when you fall off the ladder or drop
the circular saw on your foot than from the shock itself.

Thanks. That explains it.

On Tue, 19 Mar 2019 17:45:54 +0000, Andy Burns
wrote:

Scott wrote:

My question is why the RCBO did not trip.

They need to see 30mA to trip, given Clive's reaction to 13mA

https://youtu.be/-5R-KBa18ME?t=1493

your "slight tingle" was presumably lower than that?

Nothing like that. Thanks, that explains it.

"Scott" wrote in message
...
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

Not any, more than a specified current, otherwise they would
trip with the mains filters most modern electronic devices have.

On Wed, 20 Mar 2019 05:35:26 +1100, "Jac Brown"
wrote:



"Scott" wrote in message
.. .
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

Not any, more than a specified current, otherwise they would
trip with the mains filters most modern electronic devices have.

Thanks very much.

On 19/03/2019 17:30, Scott wrote:
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.


Does's the RCD work?

--
Adam

On Wed, 20 Mar 2019 05:35:26 +1100, Jac Brown, better known as cantankerous
trolling senile geezer Rot Speed, wrote:

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

Not any, more than a specified current, otherwise they would
trip with the mains filters most modern electronic devices have.

Several people answered his question already. So what the heck makes you
believe an answer only is valid when you confirm it, you senile pest?

--
Bod addressing senile Rot:
"Rod, you have a sick twisted mind. I suggest you stop your mindless
and totally irresponsible talk. Your mouth could get you into a lot of
trouble."
Message-ID:

Scott wrote:

My question is why the RCBO did not trip.

They need to see 30mA to trip, given Clive's reaction to 13mA

https://youtu.be/-5R-KBa18ME?t=1493

your "slight tingle" was presumably lower than that?

Point of order Andy, its customary to say "Spoiler alert", I don't
check for new BC videos until just before bedtime ;-)


--
Graham.

%Profound_observation%

On 19/03/2019 17:54, Clive Arthur wrote:
On 19/03/2019 17:30, Scott wrote:
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip.Â* I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

A slight tingle is very probably much less than 30mA, so a 30mA RCD
won't trip - 1mA is often taken to be the smallest you can feel.

30mA would be quite painful, though with an RCD not for long, and you're
far more likely to injure yourself when you fall off the ladder or drop
the circular saw on your foot than from the shock itself.

Worth mentioning that the 30mA RCD will not limit the shock current at
all - all it does is limit the duration of the shock if the shock
current is 30mA or more.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

On 19/03/2019 23:17, John Rumm wrote:
On 19/03/2019 17:54, Clive Arthur wrote:
On 19/03/2019 17:30, Scott wrote:
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip.Â* I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.

A slight tingle is very probably much less than 30mA, so a 30mA RCD
won't trip - 1mA is often taken to be the smallest you can feel.

30mA would be quite painful, though with an RCD not for long, and
you're far more likely to injure yourself when you fall off the ladder
or drop the circular saw on your foot than from the shock itself.

Worth mentioning that the 30mA RCD will not limit the shock current at
all - all it does is limit the duration of the shock if the shock
current is 30mA or more.

Yes, I should have made that clear, I'd make a poor teacher. (Which is
just as well because I'd rather chew my own arm off.)

Cheers
--
Clive

On 19/03/2019 17:30, Scott wrote:
Not my finest moment, but I was carrying out a minor electrical job.
As I was wiping up the dust with a damp cloth, I came into contact
with a live part of a different circuit that I did not know about.

My question is why the RCBO did not trip. I only received a slight
tingle but I thought RCDs and RCBOs were supposed to detect any
leakage to earth.


It did trip and you died; you then went to an alternative universe where
electricity doesn't harm you.

Bill

If a slight tinge tripped everything it would be a nightmare. I get slight
tingles off of most supposedly double insulated devices when I plug in a
cable to an earthed bit of kit.
Brian

--
----- --
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please
Note this Signature is meaningless.!
"Andy Burns" wrote in message
...
Scott wrote:

My question is why the RCBO did not trip.

They need to see 30mA to trip, given Clive's reaction to 13mA

https://youtu.be/-5R-KBa18ME?t=1493

your "slight tingle" was presumably lower than that?

On 19/03/2019 21:53, Graham. wrote:

Point of order Andy, its customary to say "Spoiler alert", I don't
check for new BC videos until just before bedtime;-)

Andy probably did you a favour then. You might not have wanted to watch
that one just before trying to go to sleep.