Re: CBus Toolkit

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

thanks ... for our 'build we're looking to go with HF fluorescent
lamps ... for all their advantages, including dimmability ... and I
guess the electronic ballasts that this will entail will already
include tricks like voltage fall-back ... 'though the full-brightness
energy savings for going HF seem to be only about 15%, which I'd
assumed would come from the HF itself, rather than any fall-back
tricks (ie: was wondering if there was more to come) ...still, as you
say, dimming will (presumably) achieve the same !

Chris


On 9 Jun 2007, at 12:53, Phil Harris wrote:

>
> I have one of the 2400VA ones here at home (not in use, just here
> for some
> testing I was doing) and no, currently office fluorescent fittings
> don't do
> the same things themselves and that's why these devices exist - to
> apply
> full voltage to allow a floor to strike but then throttle back the
> voltage
> once the initial strike surge has passed to give some quite
> substantial
> energy savings.
>
> 15 - 20% in many instances.
>
> Remember that these are mainly intended for existing offices as a
> way of
> saving energy with existing lighting installs - there are other
> ways to save
> energy in new installs such as light level maintenance using dimmable
> ballasts and / or external light harvesting.
>
> No use at all for domestic installs though as even the 2400VA unit
> needs a
> minimum loading of about 600w of fluorescents to work and that has
> to be a
> single circuit of fittings ...
>
> Phil
>
>> -----Original Message-----
>> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx]
>> On Behalf Of Chris Hunter
>> Sent: 09 June 2007 12:03
>> To: ukha_d@xxxxxxx
>> Subject: Re: [ukha_d] CBus Toolkit
>>
>> 'thought this interesting ...
>>
>> http://www2.clipsal.com/cis/technical/product_groups/
>> energy_management/energy_controller
>>
>> 'wonder if electronic ballasts already effectively do this ?
>>
>> Chris
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>