Haldo Shearbak Traffic Bollard - 2 x 8 Watt and 2 x 13 Watt MCF
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- čas přidán 26. 08. 2024
- This video features a Haldo 'Shearbak' plain-aspect Traffic bollard operating. The bollard runs two 13 W fluorescent lamps in the upper aspect section, and two 8 W fluorescent lamps in the lower yellow cylinder. All four lamps are mounted on a central spine; hence, the rather poor distribution of the light in the upper section.
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That's a really interesting looking bollard for sure! Did these usually come with signs on the large round part? I'd assume so..
Yes, as an alternative to a plain aspect, keep left/right and turn left/right graphic versions were produced, apparently: www.streetlightonline.co.uk/Catalogues/Haldo-Shearbak-600.pdf - I've never seen any out in the wild at all, mind you!
@@StreetLightOnline same here, never seen these in use
Even the sister 'Springbak' models were never commonplace, from what I can remember - I have only the vaguest memory of a couple seeing use as part of an entrance gate structure to one of the local parks, but they've been gone years, and all traces that they were there have been covered over.
I love its design! What ballasts are used here? Is it a standard switch start ballast with Pulsestarters or some purely electronic one?
It is quite unusual! Have a look at: www.streetlightonline.co.uk/largespringbak_photographs.htm for an internal image - as you thought, it is switch start (the 13 W lamps are on single circuits, whereas the 8 W lamps are in series), and did have standard glow starters originally, but I swapped these to Pulsestarters.
@@StreetLightOnlineThank you for the link I enjoyed the history of it :) Must say, good call on the Pulsestarters I also put them in all my fittings especially nowadays, when fluorescent lamps are unfortunately an endangered specimen…
Thank YOU for the kind words! Yes, I've tended to favour electronic starters for years, even before the fluorescent "bans" were announced - I like the pre-heat electrode glow!
@@StreetLightOnlineSame here! Always enjoy watching the startup phase, with the iconic hum of the ballasts before the lamps strike to life :D
It looks (and sounds) especially epic with T12 lamps, though you're best using a starter designed for series operation, as the standard type doesn't always pre-heat with these. If done correctly, the starting appearance can resemble that of semi-resonant start gear.