Re: apologies to the group, and an electrical question

On Fri, 20 Jun 2008 06:44:21 +0100, Richard Crowley <rcrowley@[EMAIL PROTECTED]
>  
wrote:

> "Duncan Wood"  wrote ...
>> Christopher Jahn  wrote:
>>> The problem is that there is no such thing as "the U.S. Code."
>>> Electrical and Building Codes are made at the municipal level,
>>> and in a few cases, the state level.
>>>
>>> It's easy to forget that the US is really a collection of 50
>>> independent states, each asserting its rights of sovereignity at
>>> largely trivial levels.
>>
>> It might be fairer to compare EU & US electrical regulations. At which
>> point I can have bad memories of Italy & Germany. I try not to remember
>> Greece.
>
> At least the nomial mains voltage, frequency and style of connectors
> is uniform across the 50 states.  Are uniform standards practiced across
> all the EU states yet?
>

Fairly, outside the UK it's Shuko or Ceeform for stage use, within the UK 

15A or Ceeform

> Requiring a licensed electrician seems like a rip-off to me, also.
> But consider what happens if some color-blind stage hand
> swaps the wrong two camlock connetors. (Or even connects
> the proper ones in the wrong sequence, etc.)   Both equipment
> and people get fried.
>

That seems to be a very good argument against Camlocks, they don't seem to
 
comply with any legislation or standards.


> I had a situation with a TV remote truck last weekend where
> a dodgy ground differential kept causing a very sophisticated
> Grass Valley/Thompson triax digital broadcast camera chain
> to power-down at random.
>
> Finally traced it to a monitor attached to the camera head
> which was being powered from a mains outlet near the
> camera head.
>
>