| Author |
Message |
Tim S Kemp
Guest
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 Posted:
Tue Nov 30, 2004 12:22 am Post subject:
Re: a question about power from the wall socket |
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Joe Kotroczo wrote:
| Quote: | Freshly measured: it is 233 Volts where I'm sitting. And it used to be
around 220 V...
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243.7 here oin Hull, England.
--
"Get a paper bag"
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Mike
Guest
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| Posted:
Tue Nov 30, 2004 12:22 am Post subject:
Re: a question about power from the wall socket |
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| Quote: | Here in rural Pennsylvania,
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Where in PA?? I've spent the last three weeks down there doing shows.
Last one was Bobby Vinton at the Palace Theater in Greensburg.
Mike Borkhuis |
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Phildo
Guest
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| Posted:
Tue Nov 30, 2004 12:22 am Post subject:
Re: a question about power from the wall socket |
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"Eric K. Weber" <eric-nospam@webermusic.com> wrote in message
news:qoHqd.11$OT.2111@news.uswest.net...
| Quote: | Also OT what ship do you work on?....
|
I worked on the Seabourn Pride but left there when my dad died. They didn't
want me to leave so I had to resign, pay my own air fare back to the UK and
pay the airfare of my replacement to join the ship. I was so desperate to
get home before dad died I didn't argue but there is no way I am going back
to that company again.
| Quote: | As for Dan's question ships usually
have an antenna distribution system with connection points in each room
for
AM/FM Short-wave and TV... The modulator of XM radio's will feed it, as
well as the low power Ramsey fm transmitters coupled to a CD player.
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Nope, ours is all done via cables.
Phildo |
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Phildo
Guest
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| Posted:
Tue Nov 30, 2004 12:22 am Post subject:
Re: a question about power from the wall socket |
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"Dan Gruner" <d.gruner@btinternet.com> wrote in message
news:coegqe$afh$1@titan.btinternet.com...
| Quote: | A bit OT Phildo, but out of interest, as your cabins in the ship are
equipped with radios, do they pump VHF FM throughout the ship on some kind
of "leaky feeder" system? Does the ship have its own radio station? :)
|
We have 3 channels plus one for ship's annoucements. There is classical,
easy listening and contemporary, the playlist being controlled from
shoreside and all the music downloaded as MP3s via the internet. We used to
have one of those 50 CD players on random rotation for each channel but with
the licwensing issues they decided to go with DMX radio. Same with TV.
Everything they show on the ship they have to have a licence for although we
bend the rules a bit for the crew channels and play whatever movies we have,
mostly bought as bootlegs in St Petersburg. There are no crew radio
channels.
Phildo |
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Phildo
Guest
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| Posted:
Tue Nov 30, 2004 12:22 am Post subject:
Re: a question about power from the wall socket |
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"Paul Matthews" <paul@cattytown.me.uk> wrote in message
news:k73mq0lrrb9bt80o7ops0snasfcqcf8h3m@4ax.com...
| Quote: | Pooh Bear wrote:
My family moved into a new build house in 1956 with the 5 and 15 amp
sockets. By
the time we moved to another new build in 1962, 13 amp was standard.
You would need to add about 20-25 years to get round to re wiring old
houses
with the new plugs though.
I wouldn't be surprised if there is the odd house here and there with at
least
some old connectors,
|
I inherited a house recently and was surprised to find one of the old 5A
round sockets in the front room, attached as part of a 13A ring main though.
Phildo |
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Guest
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| Posted:
Tue Nov 30, 2004 12:22 am Post subject:
Re: a question about power from the wall socket |
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On 29 Nov 2004 16:43:42 GMT, ukuleleron@aol.com (UkuleleRon) wrote:
| Quote: | Ron(UK)
BTW Graham, if you want any of your new amps "field testing" I`ll happily
accept a unit or two on loan.. ;o) <grins
Well.... if you think you might have buyers for them in the long term, I'm
sure we
could help you out with a loaner or two for you to evaluate.
Yep, always interested in thrashing someone elses gear.. lol - for evaluation
purposes of course. and always looking for new lines to sell.
We've got some other new stuff coming in that might possibly be of interest
too.
It's not on the site yet though.
16 channel rack mount mixer with inbuilt dsp reverb.
1u 4 mic + 4 stereo inputs mixer with or without dsp reverb ( 2 models ).
Now that sounds interesting. I could think of a few uses for that already.
|
Sounds ideal for Karaoke :)
cheers
BJ
Only users lose drugs.
ROT13 this <OWgurQW@hfn.arg> to contact me. |
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Eric Desrochers
Guest
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| Posted:
Tue Nov 30, 2004 6:23 am Post subject:
Re: a question about power from the wall socket |
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Tim S Kemp <news@timkemp.karoo.co.uk> wrote:
| Quote: | Single phase, 63A generally.
|
Wow, that's not a lot of power! Here in Canada, all new houses built
after the 70s have 2 X 200 amperes of 120 volts. In my neck of the
wood, the electricity is so cheap and plentifull that we can afford to
heat the houses, heat the water and run clothes driers with it!
--
Eric (Dero) Desrochers
http://homepage.mac.com/dero72
Hiroshima 45, Tchernobyl 86, Windows 95 |
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Dale Farmer
Guest
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| Posted:
Tue Nov 30, 2004 6:23 am Post subject:
Re: a question about power from the wall socket |
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Dale Farmer wrote:
| Quote: | Pooh Bear wrote:
ChuxGarage wrote:
I'm wondering if you might see the breaker fittted in the amp tripping with
high powers
and low load impedances.
Years ago, BGW introduced a pair of amplifiers with the designation "500" and
"750." They were identical except for the power rating, the color of the front
cover and the circuit breaker, which was a fast acting magnetic type.
Everything else in the amps was exactly the same.
The BGW 750s worked quite well, but the 500's constantly tripped the built in
breaker. Eventually, BGW offered a warranty retrofit for the 500 series amps.
It was a new circuit breaker, the same one that was used in the 750. People
who purchased the 500's were eventually given quite a bargain for their
trouble.
The moral of he story is, if you use an internal breaker, make it a slow
acting one.
Useful info. Thanks.
I've been kinda considering that possibility. My colleague and I were discussing
tripping times on Friday as it happens.
The breaker we currently have fitted to the EU versions has a trip time of 4-40
secs at 100% overload ( 2 x rated current ).
We're already using a 15A breaker on the higher power models for nominal 230 V. It
prevents extended 2 ohm sinewave testing for sure !
Graham
Also remember the US NEC has different assumptions on steady load current
on a circuit. A nominal 20 amp circuit is actually only good for 18 amps steady
load. Breaker is supposed to trip if the 80% of labeled load is applied for
extended periods of time, and supposed to trip more or less instantly if more than
120% ( IIRC, typing this in bed, my NEC is out in the car. ) load is drawn.
--Dale
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Correction. Exceeds 80%. Supposed to support and 80% nominal load
forever.
--Dale |
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Pooh Bear
Guest
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| Posted:
Tue Nov 30, 2004 6:23 am Post subject:
Re: a question about power from the wall socket |
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Tim S Kemp wrote:
| Quote: | Joe Kotroczo wrote:
Freshly measured: it is 233 Volts where I'm sitting. And it used to be
around 220 V...
243.7 here oin Hull, England.
|
Just checked mine here in St Albans, nr London.
252.4 ! Right on the limit. No wonder I had a wall wart that would buzz from
time to time.
Graham |
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Pooh Bear
Guest
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| Posted:
Tue Nov 30, 2004 6:23 am Post subject:
Re: a question about power from the wall socket |
|
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Chad Wahls wrote:
| Quote: | "Phildo" <Phil@phildo.net> wrote in message
news:311ecoF35c47gU1@uni-berlin.de...
I inherited a house recently and was surprised to find one of the old 5A
round sockets in the front room, attached as part of a 13A ring main
though.
Phildo
So, I went and studied ring mains. I like the idea of things being fed from
each end, USA should pay closer attention to this.
|
Well.... UL is having to come round.
I don't think it's any accident that UL1950 and IEC950 have more than a passing
similarity in the standard number. European countries use the 'localised'
EN60950. It's even called BSEN60950 for the UK ! We didn't want to lose that
'Britsih Standard' bit. :-)
| Quote: | Now I have a question. Does the average European home have 230/230 coming
in for a grand total of 460 available or do they just have one 230V "leg"
|
Just one live leg. You get live, neutral and earth ( ground ). Depending on how
and when the power was put in, the earth may be bonded to neutral or taken
spearately back to the substation.
A home supply is normally 60 amps in the UK. According to Tim it's 63 amps now -
probably the result of more 'harmonisation' but my 'company fuse' is still 60 A.
| Quote: | Do large factories have 3 phase? What's that voltage? Do the factories
have 460 available? Is there any voltage splitting going on like in the
USA?
|
Typical industrial unit is 3 phases of 240 V in the UK ( until it ever gets
changed to 230 V ) called red, blue and yellow @ 100 amps per phase with 415 V
phase to phase voltage.
There's 440 V for heavier industrial use.
| Quote: | I sincerely apologize for being an ignorant American. I find this
fascinating and would like to brush up on international electrical
standards. One never knows when it will come in handy.
|
Thanks for the interest.
Graham |
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mark devoll
Guest
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| Posted:
Tue Nov 30, 2004 6:23 am Post subject:
Re: a question about power from the wall socket |
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circut ratting is 20 amps
"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:41A944C8.4E093357@hotmail.com...
| Quote: | A question for those in N America.
Here in Europe we have an ac supply from the wall socket of 240V ( UK )
and 220V ( rest of Europe ). That's despite the paper 'harmonisation'
calling it 230V ! The current ratings of the connectors are respectively
13 and 16 Amps - giving more than 3kW available to a single outlet.
The typical circuit rating in the UK is 30 Amps ( nearly 7.5 kW ) - not
sure of the European figure but probably similar. So you can drag plenty
of watts out a typical home / office / pub-club style circuit with no
trouble
The US socket is 120V ( officially ) @ 15 A. Only 1800W per outlet.
Don't know the total 'circuit rating'.
Does this present a practical problem when gigging with multi-kilowatt
amplifiers and systems ?
How do you get round it if it is a problem ?
Oh and what *really is* the voltage at the socket in practice ? In
cities at least.
Cheers, Graham
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RL
Guest
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| Posted:
Tue Nov 30, 2004 12:11 pm Post subject:
Re: a question about power from the wall socket |
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Mike wrote:
| Quote: | Where in PA?? I've spent the last three weeks down there doing shows.
Last one was Bobby Vinton at the Palace Theater in Greensburg.
|
Altoona-Johnstown area.
--
RL |
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Bob Howes
Guest
|
| Posted:
Tue Nov 30, 2004 6:00 pm Post subject:
OT--James Bond's Gun |
|
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"BOB URZ" <"sound(remove)"@inetnebr.com> wrote in message
news:41AB9BD4.4A7BD40C@inetnebr.com...
| Quote: |
In movies after that, the PPK was the gun of choice.
So i guess were both right.
|
In the books, at least, it was made clear at the beginning of Doctor No that
Bond had been almost killed when his trusty Berretta let him down. There's
a scene where M forces Bond to change to the Walther (over strong
objections) because of it's greater stopping power and (supposed) greater
reliability.
Bob |
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Chad Wahls
Guest
|
| Posted:
Tue Nov 30, 2004 6:07 pm Post subject:
Re: a question about power from the wall socket |
|
|
"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:41ABD23E.3130F26A@hotmail.com...
| Quote: |
Chad Wahls wrote:
"Phildo" <Phil@phildo.net> wrote in message
news:311ecoF35c47gU1@uni-berlin.de...
I inherited a house recently and was surprised to find one of the old
5A
round sockets in the front room, attached as part of a 13A ring main
though.
Phildo
So, I went and studied ring mains. I like the idea of things being fed
from
each end, USA should pay closer attention to this.
Well.... UL is having to come round.
I don't think it's any accident that UL1950 and IEC950 have more than a
passing
similarity in the standard number. European countries use the 'localised'
EN60950. It's even called BSEN60950 for the UK ! We didn't want to lose
that
'Britsih Standard' bit. :-)
Now I have a question. Does the average European home have 230/230
coming
in for a grand total of 460 available or do they just have one 230V "leg"
Just one live leg. You get live, neutral and earth ( ground ). Depending
on how
and when the power was put in, the earth may be bonded to neutral or taken
spearately back to the substation.
A home supply is normally 60 amps in the UK. According to Tim it's 63 amps
now -
probably the result of more 'harmonisation' but my 'company fuse' is still
60 A.
Do large factories have 3 phase? What's that voltage? Do the factories
have 460 available? Is there any voltage splitting going on like in the
USA?
Typical industrial unit is 3 phases of 240 V in the UK ( until it ever
gets
changed to 230 V ) called red, blue and yellow @ 100 amps per phase with
415 V
phase to phase voltage.
There's 440 V for heavier industrial use.
I sincerely apologize for being an ignorant American. I find this
fascinating and would like to brush up on international electrical
standards. One never knows when it will come in handy.
Thanks for the interest.
Graham
|
As Eric pointed out a single 60A into any home in the USA would be a no-fly
even at 240. Your company fuse allows you to draw 14,400 Watts. I had a
dual 60 in my OLD home (equiv to EU standard) and it HAD to be updated to a
minimal dual 100 in order for me to get a loan that's 24,000 watts. My new
home has two 200A/leg panels, granted it's a serious overbuild but it powers
quite a bit. My total draw can safely be 96,000 watts! So in europe I would
have the equivalent of a 400A company fuse. I also have a seperate HT feed
coming to my home and my own "pole pig" My "company fuse" resides on the HT
side of the pig.
A ring system of distribution would be ideal but would drive up the costs of
wiring, especially in larger homes. What is the amperage of the company
fuse in larger homes in europe?
Chad |
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Mike
Guest
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| Posted:
Tue Nov 30, 2004 6:07 pm Post subject:
Re: a question about power from the wall socket |
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| Quote: | Altoona-Johnstown area.
|
Small world... Did Olivia Newton John in Williamsport then Smokey
Robinson in Indiana. Drove right past you. =)
Mike Borkhuis |
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