Hea05 Minimising flickering from lighting systems – Above Green

(4 credits available)

Aim

To encourage the installation of lighting systems that minimise the impact of flicker on asset users.

Question

Do the asset’s lighting installations have features that minimise or prevent flicker?

Credits	Answer	Select a single answer
0	A	Question not answered
0	B	No
1	C	Yes, ≥ 25% of lighting installations have features that minimise or prevent flicker
2	D	Yes, ≥ 50% of lighting installations have features that minimise or prevent flicker
3	E	Yes, ≥ 75% of lighting installations have features that minimise or prevent flicker
4	F	Yes, all lighting installations have features that minimise or prevent flicker

Assessment criteria

Criterion

Assessment criteria

Applicable answer

The number of credits awarded should be based on the proportion of lighting installations with features that minimise or prevent flicker compared to the total number of lighting installations.

C-F

The following are examples of lighting installations that are considered to contain features that minimise or prevent flicker:

Fluorescent and gas discharge lighting where the light is controlled by electronic high frequency control gear.
LED lighting without dimming.
LED lighting with dimming where dimming occurs through controlling the current.
Incandescent lighting, e.g. halogen lamps

Where Digital Addressable Lighting Interface (DALI) or similar systems are used to dim LED lighting, evidence must be provided to demonstrate that the LED products do not flicker.

C-F

Evidence

Criteria	Evidence requirement
-	The evidence below is not exhaustive, please also refer to the ‘BREEAM evidential requirements’ section in the scope of the Guidance for appropriate evidence types which can be used to demonstrate compliance.
All	Visual inspection and photographic evidence by the Assessor that the installed lighting meets the criteria.
All	Technical specifications for the installed lighting.

Definitions

High frequency control gear:

Device connected between the supply and one or more discharge lamps which serves mainly to limit the current of the lamp(s) to the required value. Control gear may also include means for transforming the supply voltage, correcting the power factor and, either alone or in combination with a starting device, provide the necessary conditions for starting the lamp.

Flicker:

Impression of unsteadiness of visual sensation induced by a light stimulus whose luminance or spectral distribution fluctuates with time.