Middlemore Hospital, Counties Manukau, Auckland, NZ
- Lamp efficacy
Lamp efficacy
Ensuring the lamp efficiently converts electricity into light (lm/W).
- Ballast classification
Ballast classification
Controlling the electricity supply to the lamp (Energy Efficiency Index).
- Luminaire distribution
Luminaire distribution
Controlling light emission using optics which bend and shape the light to the correct location.
- System efficacy
System efficacy
Combining optical and thermal control within the luminaire (luminaire lm/W).
- Presence/absence detection
Presence/absence detection
Presence: Lights automatically turn on/off with movement. Absence: Lights automatically turn off and must be manually switched on.
- Daylight detection
Daylight detection
Artificial lighting which responds to the natural light conditions.
- Constant illuminance
Constant illuminance
A function designed to produce correct light levels for the duration of the maintenance period.
- Task-scene setting
Task-scene setting
Allowing the user to set scenes and adapt the lighting to different tasks.
- Timed off
Timed off
Automatic cut-off can be installed to turn all lights off during unoccupied hours.
- Task lighting
Task lighting
Lighting task areas with the correct amount of light.
- Zoning of lighting
Zoning of lighting
Lighting is zoned according to area use.
- Maintenance schedule
Maintenance schedule
Maintenance must be performed in response to product age, performance and environment.
- Waste light
Waste light
Eliminating waste light which does not hit the intended target.
- Reflectance
Reflectance
Taking advantage of light which is reflected from the surface within the space.
- Visible smart metering
Visible smart metering
Results of actions can be quickly seen as increased or decreased energy use to encourage responsible energy consumption.
Over 2800 Thorn luminaires supplied for new hospital wing.
Thorn product is extensively used throughout the Hospital including a large quantity of Quattro T luminaires installed in the older hospital wings.
Since 2003 Middlemore Hospital, one of the largest tertiary teaching hospitals in New Zealand has been undergoing complex redevelopment. The hospital services the wider South Auckland community and offers both general and specialist care with admittances exceeding 91,000 patients annually, before taking into account the 354,000 day/out-patients cared for by 4,000 full time employees.
The newly completed five storey Clinical Services Building is fitted with 2850 Thorn luminaires most of them designed in-house and manufactured in our local Auckland factory.
The Solution:
Thorn luminaires were specified for all areas of the new wing with Invincibles and Duoproof in operating theatres and hygiene controlled areas. Locally manufactured PopPacks were placed in offices, corridors and utility spaces. Over 700 Quattro T luminaires using 36W Fluorescent tubes fitted with type B1 ballasts and sealed, wipe-down diffusers were specified by Project Consultants, Beca. The varied lighting requirements were complemented by a combination of Quattro LEDNZ (using Tridonic LED panels and drivers) and Base LEDs for consulting rooms and nurses’ stations.
Other products specified include: Aquaforce II, D-CO LED, IndiQuattro, Cesar and Lite Line Trunking.
The Benefits:
Use of LED lighting in high use areas such as nurses’ stations and consulting rooms ensures energy savings when compared with long-standing wings of the hospital fitted out with old style fluorescent tubes.
The typical 50,000 hour LED lifetime means maintenance costs will be substantially lower.
The quality of light in the new wing inspires a level of confidence due to its clean, professional and efficient feel.
Key Facts
- Energy saving: Up to 50%
- LED lifetime: Up to 50,000 hours