VELUDHARAN TEMPLES VISIT : Light House, Pulicat, Thiruvallur District, Tamil Nadu.

Tuesday, 15 March 2016

Light House, Pulicat, Thiruvallur District, Tamil Nadu.

15^th, March 2016.

After darshan of Sri Chinthamaneeswar we continued our travel through the sea shore road. The Light House is located in an island, which has the road connectivity with the main land Pazhaverkadu with a new bridge. The bridge was constructed recently and before construction of the bridge, people living in the Pulicat island depends on the boat services or cross Kosasthalaiyar river by walk. The light house is constructed and commissioned on 25-08-1986 on small sand hill. The structure is in the shape of hexagon and is visible about 5 km from land. The detailed technical specification is as follows.

The elevation of focal plane :53.5 meters above M.H.W.S

No of service lamps two in Arrays : Seven arrays with 2 lamps/ array

Voltage : 100 V AC - 12 V DC

Speed of Rotation is : 6 RPM

Flashing white : 5 second duration of flash 0.25 sec

Effective beam intensity : 1,050,000 CDS to -38,000 CDS

Geographical range : 9.3 Nautical miles

Commissioned on : 28-08-1986.

It is a historical monument and at the time of construction it was the highest Light house in South Asia. Before this there was an old light house with brick masonry of height 20 meters which was constructed during 1859. There was a Time chart to switch ON and Switch OFF depending on the month. The equipment of fourth order optic PV lighting was re used in the present tower till 1910 with modification. Then after that few years before the whole array of PV lights were replaced with the present lighting system and UPS system. Apart from this there is a DG set to care of power failure. The Glass room at the top where the Lights are located used to cover with white screen cloth during day time and night it will be removed.

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