World first for Vega

DEMM Engineering & Manufacturing - - NEWS -

A port en­try

light on top of a nav­i­ga­tion bea­con on the Ben­v­enue Cliffs in Ti­maru is be­lieved to be the first of its kind to be in­stalled any­where in the world.

The ex­ist­ing light had been there for 20 years and time had taken its toll. The re­place­ment $50,000 bea­con can be seen for 40kms – 21 Nm – and is de­signed to be low main­te­nance by Porirua-based Vega.

For nar­row chan­nels the risk of big ships run­ning aground into sub­merged rocks or shift­ing sand­bars is paramount. The role of the sec­tor light, is to help the cap­tain nav­i­gate safely into port with the use of pre­ci­sion colour light sig­nals – green white and red. The pilots aim to stay within the white sec­tor (white is safe). If they see a red light as they come into port, they know they need to move over to­ward the white. If they see green this is also an in­di­ca­tion that they need to move to­ward the white to stay in the safe zone.

The world-first here is the tech­nol­ogy move from in­can­des­cent light bulbs to LED. The last ma­jor tech­nol­ogy shift in this in­dus­try was in the 1950’s when in­can­des­cent elec­tric light­ing was brought in to re­place the naked flame – pro­duced by burn­ing whale oil or kerosene. LED tech­nol­ogy has now be­come so pow­er­ful they are re­plac­ing the last of Vega’s in­can­des­cent prod­ucts. There are also many ben­e­fits to the pur­chaser – LED has less main­te­nance, bet­ter power ef­fi­ciency, and can be con­trolled dig­i­tally which al­lows the port au­thor­ity to mon­i­tor the sta­tus of the light re­motely (of­ten these lights are in re­mote lo­ca­tions that would re­quire ex­pen­sive he­li­copter flights to ac­cess them for check­ing and main­te­nance).

These lights are cus­tom-made at Vega be­cause no har­bour in the world is the same. The light is made of bronze, cop­per and stain­less steel to with­stand the el­e­ments for 20 years or more, and the op­tics con­sist of coloured fil­ter glass to project the sec­tors. The fil­ters are op­ti­cally ground and highly pol­ished on their edges to fit to­gether with pre­ci­sion to meet the spec­i­fi­ca­tions of the cus­tomer. This spe­cial­ist knowl­edge is what has set Vega apart from the com­peti­tors over the last 40 years, the com­pany be­lieves.

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