[D.M. Procida]

I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

[Donwill[_3_]]

On 02/05/2011 15:37, D.M. Procida wrote:
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

Normally yes, unless someone has connected them the wrong way round. Why
do you need to know?
Don

[Roger Mills[_2_]]

On 02/05/2011 15:37, D.M. Procida wrote:
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

That's a reasonable assumption - otherwise the thing could still be live
with a blown fuse.
--
Cheers,
Roger
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[Tabby]

On May 2, 3:37*pm, (D.M.
Procida) wrote:
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

That's a sane assumption. Only once did I see fusing in the earth
connection, in a Hacker gramophone. It was earthed via a thin strip of
ali foil, which acts as a fuse.


NT

[[email protected]]

On May 2, 3:37*pm, (D.M.
Procida) wrote:
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

Do check that the wire you *think* is live in the mains lead, really
is connected to the live pin in the plug.

There are some strange people that think wiring colours are more of a
rough guide than a rule.

[alexander.keys1[_3_]]

On May 2, 7:30*pm, " wrote:
On May 2, 3:37*pm, (D.M.

Procida) wrote:
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

Do check that the wire you *think* is live in the mains lead, really
is connected to the live pin in the plug.

There are some strange people that think wiring colours are more of a
rough guide than a rule.

Some appliances are wired the wrong way round, yesterday I had to
reverse the blue and brown wires in the plug for a cheap handlamp that
I was fixing, which was found to have it's internal SP switch and the
centre of the ES lampholder connected to the blue wire...

[Roger Mills[_2_]]

On 02/05/2011 21:36, alexander.keys1 wrote:


Some appliances are wired the wrong way round, yesterday I had to
reverse the blue and brown wires in the plug for a cheap handlamp that
I was fixing, which was found to have it's internal SP switch and the
centre of the ES lampholder connected to the blue wire...

Since when did two wrongs make a right? Shouldn't you have corrected the
problem in the *appliance*?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

[ARWadsworth]

Roger Mills wrote:
On 02/05/2011 21:36, alexander.keys1 wrote:


Some appliances are wired the wrong way round, yesterday I had to
reverse the blue and brown wires in the plug for a cheap handlamp
that I was fixing, which was found to have it's internal SP switch
and the centre of the ES lampholder connected to the blue wire...

Since when did two wrongs make a right?

Yesterday afternoon when Owen was denied that penalty.

--
Adam

[Roger Mills[_2_]]

On 02/05/2011 22:24, John Rumm wrote:
On 02/05/2011 22:08, Roger Mills wrote:
On 02/05/2011 21:36, alexander.keys1 wrote:


Some appliances are wired the wrong way round, yesterday I had to
reverse the blue and brown wires in the plug for a cheap handlamp that
I was fixing, which was found to have it's internal SP switch and the
centre of the ES lampholder connected to the blue wire...

Since when did two wrongs make a right? Shouldn't you have corrected the
problem in the *appliance*?

Swapping in the plug would ok if you also sleeved the wires to indicate
their actual usage IMHO


Indeed. Otherwise someone is subsequently likely to see that they are
'wrong' and swap them back again!
--
Cheers,
Roger
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[Man at B&Q]

On May 2, 3:46*pm, Donwill wrote:
On 02/05/2011 15:37, D.M. Procida wrote: I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg *but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

Normally yes, unless someone has connected them the wrong way round. Why
do you need to know?

Think about it :-)

MBQ

[hugh]

In message
,
D.M. Procida writes
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele
It's a fair bet. On the other hand I did once have an Indesit washing
machine where the neutral was switched, not the live - very dangerous.
--
hugh
"Believe nothing. No matter where you read it, Or who said it, Even if
I have said it, Unless it agrees with your own reason And your own
common sense." Buddha

[PeterC]

On Wed, 4 May 2011 14:01:38 +0100, hugh wrote:

In message
,
D.M. Procida writes
I unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele
It's a fair bet. On the other hand I did once have an Indesit washing
machine where the neutral was switched, not the live - very dangerous.

I replaced a socket in a house where L and N were transposed in the CU, so
all the fuses were on N. I found out the spectacular way - and damaged a
good screwdriver.
--
Peter.
The gods will stay away
whilst religions hold sway

[Windmill[_3_]]

"Man at B&Q" writes:
On May 2, 3:46=A0pm, Donwill wrote:
[......]
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Some old radio circuits used to show a fuse in both sides of the supply
to a transformer, for some reason.
And when I found an old metal mains fusebox in which all the circuits
were fused on both the live side and the neutral side, I asked an even
older-timer than myself and was told that had once been common practice.

I think in those days emphasis was on protecting the equipment, not the
people.

--
Windmill, Use t m i l l
@ O n e t e l
. c o m

[Windmill[_3_]]

hugh ] writes:

It's a fair bet. On the other hand I did once have an Indesit washing
machine where the neutral was switched, not the live - very dangerous.

I once refused to believe my wife (now ex-wife, but not for that reason)
when she claimed to have got a shock from the refrigerator in our
rented apartment.
Later I discovered that, only when the motor was running, the
metal body of the refrigerator had 110 volts on it. (This was in
Toronto).

No earth (only a two pin socket for the fridge), and a faulty motor.


--
Windmill, Use t m i l l
@ O n e t e l
. c o m

[alexander.keys1[_3_]]

On May 2, 10:08*pm, Roger Mills wrote:
On 02/05/2011 21:36, alexander.keys1 wrote:



Some appliances are wired the wrong way round, yesterday I had to
reverse the blue and brown wires in the plug for a cheap handlamp that
I was fixing, which was found to have it's internal SP switch and the
centre of the ES lampholder connected to the blue wire...

Since when did two wrongs make a right? Shouldn't you have corrected the
problem in the *appliance*?
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

The internal connections were soldered, I didn't have time to fix them
as I needed the handlamp to do another job, anyway I'm going to buy a
decent one, as the reason for the first one needing fixing was that
the neon pilot light in the switch had caused the fuse to blow.

[alexander.keys1[_3_]]

On May 5, 3:47*am, (Windmill)
wrote:
"Man at B&Q" writes:

On May 2, 3:46=A0pm, Donwill wrote:
[......]
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Some old radio circuits used to show a fuse in both sides of the supply
to a transformer, for some reason.
And when I found an old metal mains fusebox in which all the circuits
were fused on both the live side and the neutral side, I asked an even
older-timer than myself and was told that had once been common practice.

I think in those days emphasis was on protecting the equipment, not the
people.


Used for DC mains, which could have both sides floating, but DP fusing
was required by regulations until after WW2, when SP fusing was
allowed for AC mains, providing the neutral was permanently earthed at
the substation.

[robgraham]

On May 4, 2:01*pm, hugh ] wrote:
In message
,
D.M. Procida writesI unsoldered the damaged mains lead from an old Roland drum machine
http://www.synthesizers.com/mok2009/MOK_2009_15_m.jpg but was thinking
about something else and realised that I hadn't noted which was the live
and which the neutral terminals (earth is obvious).

Can I safely assume that the live terminal is the one that goes to a
fuse? I can't think of any reason why the neutral connector should be
fused, can you?

Daniele

It's a fair bet. On the other hand I did once have an Indesit washing
machine where the neutral was switched, not the live - very dangerous.
--
hugh
"Believe nothing. No matter where you read it, Or who said it, Even if
I have said it, Unless it agrees with your own reason And your own
common sense." Buddha

I've a modern oven in which the neutral is switched - an AEG, not one
of the cheap and crappy manufacturers. Some time back it started
tripping the RCD when switched from OFF to the 1st position which is
OVEN LIGHT. Ergo I dismantled the oven light, isolated it totally as
I couldn't find anything obvious and powered the oven back on - still
tripped.

The dismantlement became somewhat more serious and the meter use to
identify cabling more prolonged, resulting in finding that switching
to position 1 of the selector switch put the neutral onto the fan
motor and that was when the trip happened. I suppose that doesn't
quite qualify in that the fan wasn't actually powered on by this, but
it didn't half cause some confusion.

Rob

[Windmill[_3_]]

"alexander.keys1" writes:

And when I found an old metal mains fusebox in which all the circuits
were fused on both the live side and the neutral side, I asked an even
older-timer than myself and was told that had once been common practice.

Used for DC mains, which could have both sides floating, but DP fusing
was required by regulations until after WW2, when SP fusing was
allowed for AC mains, providing the neutral was permanently earthed at
the substation.

Interesting info. And of course you might not know, for sure, if the
neutral was in fact permanently earthed, and would therefore fuse both
sides to be sure you complied with the regs.

It probably had become dogma that you should do that, long after it had
in fact become a just-possibly dangerous thing to do. Especially if you
weren't expecting it.

--
Windmill, Use t m i l l
@ O n e t e l
. c o m