High current power feeds, European way (Re: Electrics Question)
- From: Tomi Holger Engdahl <then@xxxxxxxxxxxxxxxxxxxx>
- Date: 23 Sep 2005 14:22:07 +0300
"Thomas Paterson" <t_p_paterson@xxxxxxxxxxx> writes:
> Hi All,
>
> For this events space I'm designing in LA, we need to work out what
> power infrastructure to put in (and indeed, what not to waste money
> on). We're going to have a medium size feed permanently in the
> building, and a location for an external generator, with cable chases
> and everything to get power cleanly into the building. (Not through
> emergency doors, etc.)
>
> What is the current standard for wire-in points for the events hire
> people to hook their distribution in? Straight to bus bars, powerlock,
> camlock? Another system?
> Your advice is greatly appreciated.
I think that Camlocks are the most commonly used connectors for highish
power connections in USA. That's what I have seen most on installations
I have seen.
When systems in USA seem to use separate connectors (Camlocks) for
all of the power wires, the situation in different in Europe.
High current power connections in Europe generally prefer to
use CeeForm connectors. Those connectors house the connection
pins for all wires needed for single phase or theree phase power feed.
And the ground connection makes the geround connection before other
pins when connector is inserted and disconnects las when connector
is removed. Very convient connector and on my point of view safer
to use than separate connection fo every wire in the connection
(less room for mistakes).
CeeForm: CeeForm (CEE 17 7 IEC 309) is the European standard
for highish-current connectors, available in 16, 32, 63 and 125A single
and three-phase variants. The CeeForm connectors are widely used in
Europe for connection of three phase power to theree phase equipment,
distribution panels and dimmer racks.
European venues generally have a set of those outputs available
at the places three phase power is commonly needed. And you can
see those exactly same connectors in the power contacts on the
equipment racks. I have often seen 16A three phase connector
on amplifier racks and very small dimmer systems. Generally
32A three phase are seen on small touring dimmer racks.
Bigger connectors are seen on large systems.
That CeeForm connector system is the same as used for
temperary electrical supply systems used for example
in house construction sites. So the entertainment systems can
use the same cables and power distribution panels in their
temperature power needs. When you need some more power
distribution stuff, go to the nearest construction tools/equipment
rental supply to get few three phase extension cords and
few sub-panels... or let a specialized company to handle
all the electricity issues.
That 125A connector can carry prety much energy to whatever need
here, because European voltage is 230V/400V (230V from neutral to
phase, 400V between phases) that 3x125A is prety much energy..
--
Tomi Engdahl (http://www.iki.fi/then/)
Take a look at my electronics web links and documents at
http://www.epanorama.net/
.
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