[SML] L21-30 power supply

[e-mail frank.wood95]

Richard.

Why do you think this? Dimmer packs are essentially single phase
devices, the total load being spread across three phases for reasons
of load balancing. If your breakers work on strict trades union
principles (One out: all out) tripping one breaker will lose you the
whole works, and tou've lost the whole show. With two phases left, you
can usuallyy cobble up enough lights to keep going.

I've had to dothis once when the isolator developed a mechanical fault.

Three-phase machinery is a different question. Motors get awfully
confused if they lose one phase, so it is right for them.

On 28 February 2015 at 15:11, Richard Niederberg via Stagecraft
<stagecraft at theatrical.net> wrote:
> Dear Tim,
> For Dimmer Packs, you should plug straight in to the breaker panel, so all
> the 'hots' trip together, if the breakers are mechanically interlocked,
> which they should be for maximum safety.
> /s/ Richard
>
> On Sat, Feb 28, 2015 at 7:00 AM, Tim Nielsen via Stagecraft
> <stagecraft at theatrical.net> wrote:
>>
>> Hey list,
>>
>> I have a L21-30 power supply mounted to the side of a breaker panel in my
>> shop for a chain motor.  I've never used it, but lately on shows I've found
>> myself in need for more power available on stage.
>>
>> I know Lex makes their "Bento Box"
>> (http://www.lexproducts.com/products/entertainment/powerhouse-portable-distribution-boxes/20-30-amp-portable-distribution-boxes/30-amp-bento-box-with-tail-input-to-nema-receptacles)
>>
>> This looks like exactly the product I need, unless I'm overlooking
>> something.  Does anyone know about any other products I could use?  I've
>> seen a few adapter cables, but they all seem to output at 208v, which isn't
>> useful to me.
>>
>> My plan would be to use it for power for bands on stage, occasional extra
>> dimmer packs, running a couple of circular saws on stage, etc., not constant
>> use.
>>
>> Thanks!
>>
>> -Tim
>>
>> --
>> Timothy Nielsen
>> Episcopal High School
>> Technical Director
>> Office:  (703) 933-4172
>> Email:  TDN at episcopalhighschool.org
>>
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>
>
>
>
> --
> /s/ Richard
> _________
>
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-- 
Frank Wood