Bell Lighting Guide 2024

Glossary

Glossary

IP Ratings

IP Ratings

430

431

Stairwells Focus on safety ensuring good light levels. Also ensure the emergency requirements for escape are met. Showroom Focus should be on the products being displayed. Good CRI is important to ensure that colours are displayed correctly, BELL LED lamps have good and consistent CRI. Also consider the reliability of the lighting, a long lamp life is important or the products will become dimly lit over time as lamp performance deteriorates. Exterior Think about the security requirements and the safe passage of staff and visitors when entering and leaving a building. Good exterior lighting can dramatically improve the look of a building so consider both lighting the area around the building and the elevations of the entrance area and side walls. The correct choice of fittings and colour temperature is important. Making the most of your lighting Good lighting design recognises the need for depth of view. Both ambient and accent lighting should be used, whilst combining colour temperatures to create a more comfortable working environment. Ambient lighting is the general lighting within an area and typically contributes 80% of the overall lighting level. Accent lighting adds interest and depth to a design and should compliment but not conflict with the ambient lighting. This can include wall washing, the subtle use of colour, up lighting and spotlighting.

Classification of the degree of protection a luminaire provides against the entry of solid foreign bodies and moisture. IP65 rated units are protected against dust and offer protection against water jets. Recommended Light Levels - CIBSE Guidelines

Ingress Description

Protection Short Description

0 Not Protected

0

Not Protected

Protection against solid objects greater than 50mm Protected against solid objects greater than 12mm Protected against solid objects greater than 2.5mm Protected against solid objects greater than 2.5mm Protected against solid objects greater than 1mm

1

1

Protected against dripping water

Protected against dripping water when tilted up to 15°

2

2

3

3

Protected against spraying water

Public areas with dark surroundings 10-50 Lux

4

4

Protected against splashing water

Car parks 10-50 Lux

Warehouse racking 150 Lux

5

Protected against water jets

5

Brighter areas such as bathrooms 150-200 Lux

6

Dust protected

6

Protected against heavy seas

Warehouses, homes & theatres 150-200 Lux

7

Dust Tight

7

Protected against the effects of immersion

Simple office work and classrooms 300-500 Lux

8

Protected against submersion

Normal office work with computers 300-500 Lux

Supermarkets and workshops 500-1000 Lux

Typical Lighting requirements for commercial applications Meeting & boardroom The main lighting should be focused on the table areas. Allowing control of lighting near screens and displays. Use feature lighting to provide depth and impact. Office area Allow for flexible use of the space so that desks can be repositioned. Consider using occupancy detection and natural daylight, this will require lighting control. Light emergency escape routes. Reception The reception area provides the first impression of a business. The main and accent lighting should be varied to provide an interesting environment.

Index

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