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Lewisham Hospital Maternity Ward

Connor Felstead • 5 April 2023

Lewisham Hospital Maternity Ward, Wash rooms and adjoining areas

Background

To start their journey into smart buildings, Lewisham Hospital have undergone upgraded from T8 to Smart LED lighting in some key areas, with a current full site upgrade's completion date for the late 2020's.

Challenge

With high traffic areas of sensitive nature, it's important to ensure sufficient lighting levels for both safety and comfort. With failing T8 and T5 technology, as well as severe man hours invested into diagnosing and replacing emergency fittings, a better solution was needed. Concentrating on desked areas, meeting rooms and conference rooms, a variety of hold times and switching parameters would need to be invested in to make sure each room works as required.

Solution

Swapping the old T8/T5 with more appropriate dali dimmable smart panels, with integrated emergency allowed an initial energy saving, while proving ample lux levels over the rooms. With the introduction of wired PIRs and 4CS switching allowed correct controls to be widespread over these sites. Lux levels of each fitting were acclimatised so that 500 lux could be achieved at desk level. In meeting rooms, a combination of the 4CS and PIR allows the room to lit when occupied, dimmed when needed via the switch, and then turned off via PIR timeout ensuring adequate light levels are there when needed at all times, and then turned off when not.

Benefits

High traffic areas where previously fittings were on all day long, at 100%, now have off time as well as dimmed time, meaning a lot of energy saved.

With the newly added dimmable settings, meeting rooms can now be adjusted for presentations or conferences, making the environment more suitable.

In addition to the energy saving, maintenance time is also saved with the integrated EMs being monitored and diagnosed by the Lumitel platform.