Son and LED working together – a case study. Pete Lummis I.Eng, M.I.L.P

© Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

© Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

© Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

© Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

© Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

Existing Lighting © Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

Proposed Lighting © Crown copyright and database rights 2013 Ordnance Survey HDC 100022322

Other LED floodlights did not deliver the solution I wanted to achieve in relation to the footbridge lighting.

The area where people sat and mingled was well lit at 28 lux and an excellent uniformity ratio of 0.4.The area leading to the road was backlit by the 10m streetlights (CCC SON lighting.)

The proposed lighting was replacement for existing lighting and was approved by the conservation officer. The only additional light was mounted on the end of a building owned by the District Council, leased to the Parish Council and not Grade listed, so was done under permitted development.

CHALLENGE NUMBER 1. Grade 2 listed building “keep the bracket” Thus saith the Conservation Officer

CHALLENGE NUMBER 2 Design a bracket for aiming the floodlight!

CHALLENGE NUMBER 3 Mounting the floodlight

Final solution- a cantilevered scaffold

From: Madelaine Liddiard [mailto:TownClerk@GMCCouncil.com] Sent: 22 April 2016 09:00To: Lummis, Pete (Projects)Subject: FW: Lighting of Godmanchester TC Offices/Elizabeth school area and Chinese Bridge PeteQuote from the Mayor of Godmanchester : Cllr David Underwood “Godmanchester people are delighted with the new lighting scheme designed by Pete Lummis. It is subtle and sensitive, highlighting the beauty of our iconic Chinese bridge at night.”

Madelaine

Self critique.“I wish I could have mounted the floodlights 2m higher, so giving an inclination angle of 0⁰.”Pete