Cooker switch neon indicator
 

My cooker switch is wired in a way that the neon indicator is always
on, whether the switch is on or off. Is this correct? (I am under the
impression that the indicator should be in sync with the switch). The
cooker is mixed-energy: gas hob and electric oven, if that matters.

Moreover, I have two wall light switches that also have neon
indicators and the indicators are always on regardless whether the
switches are on or off. They must be wired by the same electrician.
But is this correct?

Thanks, -JK.

Cooker switch neon indicator
 

In article ,
John K wrote:
My cooker switch is wired in a way that the neon indicator is always
on, whether the switch is on or off. Is this correct? (I am under the
impression that the indicator should be in sync with the switch). The
cooker is mixed-energy: gas hob and electric oven, if that matters.

Sounds like the input and output from the switch are reversed. Not a safety
issue, but annoying.

Moreover, I have two wall light switches that also have neon
indicators and the indicators are always on regardless whether the
switches are on or off. They must be wired by the same electrician.
But is this correct?

If they are there to 'see' the switch in the dark, it's normal to have them
on with the light off, and off with it on. If it's a normal lighting
circuit, it sounds like he might have wired one side to earth, given that
there's not normally a neutral at a switch.

--
*If I throw a stick, will you leave?

Dave Plowman London SW 12
RIP Acorn

Cooker switch neon indicator
 

On 18/02/2004 John K opined:-
Moreover, I have two wall light switches that also have neon
indicators and the indicators are always on regardless whether the
switches are on or off. They must be wired by the same electrician.
But is this correct?

No, it is wrong. The indicators are to indicate that the switches are
turned on.

The terminals should be marked something similar to 'in' and 'out', one
for each L and N. Your 'electrician' has got the 'in' mixed up with the
'out'.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.org

Cooker switch neon indicator
 

On 18/02/2004 Harry Bloomfield a wrote :
On 18/02/2004 John K opined:-
Moreover, I have two wall light switches that also have neon
indicators and the indicators are always on regardless whether the
switches are on or off. They must be wired by the same electrician.
But is this correct?

No, it is wrong. The indicators are to indicate that the switches are turned
on.

The terminals should be marked something similar to 'in' and 'out', one for
each L and N. Your 'electrician' has got the 'in' mixed up with the 'out'.

Sorry, that was meant to apply to the cooker type switches.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.org

Cooker switch neon indicator
 

In uk.d-i-y, Dave Plowman wrote:

If they are there to 'see' the switch in the dark, it's normal to have them
on with the light off, and off with it on. If it's a normal lighting
circuit, it sounds like he might have wired one side to earth, given that
there's not normally a neutral at a switch.

With incandescents, there's no need to wire the cold end of the neon
to earth: the neon goes across the switch contacts, and the cold resistance
of the blub forms an effective path to neutral (being massively lower than
the 'internal resistance' of a neon indicator). With the switch on, there's
no potential across the neon, so it goes out. A downside of this Ingeneous
scheme is that if the bulb blows, the indicator no longer lights; and it's
shot to pot if you use compact-flourescent or similar.

As for the cooker switch, it sounds as you say very much as if the wiring
to the 'Feed' and 'Load' sides of the switch have been swapped round.

Cheers, Stefek

Cooker switch neon indicator
 

On Wed, 18 Feb 2004 20:00:35 UTC, wrote:

no potential across the neon, so it goes out. A downside of this Ingeneous
scheme is that if the bulb blows, the indicator no longer lights; and it's
shot to pot if you use compact-flourescent or similar.

Funnily enough, we have one circuit with two compact fluorescents on it
(nearly the same, apart from the white powder! :-)). It has one of
these neon visibility things on the switch and it still seems to work OK
(there are no incandescents in the circuit).

Don't know WHY, mind....!

--
Bob Eager
begin by not using Outlook Express...

Cooker switch neon indicator
 

On 18 Feb 2004 22:51:33 GMT, "Bob Eager" wrote:

On Wed, 18 Feb 2004 20:00:35 UTC, wrote:

no potential across the neon, so it goes out. A downside of this Ingeneous
scheme is that if the bulb blows, the indicator no longer lights; and it's
shot to pot if you use compact-flourescent or similar.

Funnily enough, we have one circuit with two compact fluorescents on it
(nearly the same, apart from the white powder! :-)). It has one of
these neon visibility things on the switch and it still seems to work OK
(there are no incandescents in the circuit).

Don't know WHY, mind....!


A large R across the fluorexcrescent?

That would be enough to light the neon.

I have a neon visibility thing on a circuit connected to a HF
ballasted fitting with emergency maintained capability.
Must be an R there as well


..andy

To email, substitute .nospam with .gl

Cooker switch neon indicator
 

In message , Andy Hall
writes
On 18 Feb 2004 22:51:33 GMT, "Bob Eager" wrote:

On Wed, 18 Feb 2004 20:00:35 UTC, wrote:

no potential across the neon, so it goes out. A downside of this Ingeneous
scheme is that if the bulb blows, the indicator no longer lights; and it's
shot to pot if you use compact-flourescent or similar.

Funnily enough, we have one circuit with two compact fluorescents on it
(nearly the same, apart from the white powder! :-)). It has one of
these neon visibility things on the switch and it still seems to work OK
(there are no incandescents in the circuit).

Don't know WHY, mind....!


A large R across the fluorexcrescent?

That would be enough to light the neon.

I have a neon visibility thing on a circuit connected to a HF
ballasted fitting with emergency maintained capability.
Must be an R there as well


.andy

Any electronic HF ballast device is likely to have an X capacitor (i.e.,
live to neutral) at the input for EMC filtering. That will give enough
current flow to light a neon up-stream.

--
Steve

Cooker switch neon indicator
 

In article ,
wrote:
If they are there to 'see' the switch in the dark, it's normal to have
them on with the light off, and off with it on. If it's a normal
lighting circuit, it sounds like he might have wired one side to
earth, given that there's not normally a neutral at a switch.

With incandescents, there's no need to wire the cold end of the neon to
earth: the neon goes across the switch contacts, and the cold resistance
of the blub forms an effective path to neutral (being massively lower
than the 'internal resistance' of a neon indicator). With the switch on,
there's no potential across the neon, so it goes out. A downside of this
Ingeneous scheme is that if the bulb blows, the indicator no longer
lights; and it's shot to pot if you use compact-flourescent or similar.

Err, that's what I said. If it stays on all the time as the OP says, one
side is either wired to earth or neutral.

--
*Who are these kids and why are they calling me Mom?

Dave Plowman London SW 12
RIP Acorn

Cooker switch neon indicator
 

On Wed, 18 Feb 2004 23:34:10 +0000, Steven Briggs
wrote:

In message , Andy Hall
writes
On 18 Feb 2004 22:51:33 GMT, "Bob Eager" wrote:

On Wed, 18 Feb 2004 20:00:35 UTC, wrote:

no potential across the neon, so it goes out. A downside of this Ingeneous
scheme is that if the bulb blows, the indicator no longer lights; and it's
shot to pot if you use compact-flourescent or similar.

Funnily enough, we have one circuit with two compact fluorescents on it
(nearly the same, apart from the white powder! :-)). It has one of
these neon visibility things on the switch and it still seems to work OK
(there are no incandescents in the circuit).

Don't know WHY, mind....!


A large R across the fluorexcrescent?

More than likely the neon is connected across L & E.
...

SJW
A.C.S. Ltd.

Cooker switch neon indicator
 

On Wed, 18 Feb 2004 23:47:51 UTC, (Lurch)
wrote:

On 18 Feb 2004 22:51:33 GMT, "Bob Eager" wrote:

On Wed, 18 Feb 2004 20:00:35 UTC, wrote:

no potential across the neon, so it goes out. A downside of this Ingeneous
scheme is that if the bulb blows, the indicator no longer lights; and it's
shot to pot if you use compact-flourescent or similar.

Funnily enough, we have one circuit with two compact fluorescents on it
(nearly the same, apart from the white powder! :-)). It has one of
these neon visibility things on the switch and it still seems to work OK
(there are no incandescents in the circuit).

Don't know WHY, mind....!


A large R across the fluorexcrescent?

More than likely the neon is connected across L & E.

Not in my case, it isn't. I wired it...

--
Bob Eager
begin by not using Outlook Express...

Cooker switch neon indicator
 

In article , Andy Hall
writes

fluorexcrescent?

Lovely. :)

--
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