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Posted By TomB
Can anyone give me chapter and verse on approved lighting levels in a woodwork shop?
HSE tell me of suggestions of 100 - 200 lux, but I don't yet have access to HSG38.
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Posted By Kirsty Davies2
I know I'll be bombarded again for using the technical language. but who cares.
Guidance on design in good lighting is available in the Chartered Institute of Building Service Engineers (CIBSE) document LG7 Office Lighting. Guidance states that;
The recommended design maintained illuminance over the task area in any room where office work is carried out is generally in the range 300 to 500 lux.
Where the tasks are mainly screen based, such as data
retrieval or telephone sales, then illuminances at the lower end of this range should be used.
Where the tasks are mainly document based, such as writing or
copy typing, then 500 lux will be required. Where there are visually more onerous tasks, such as proof reading or technical drawing, even higher levels should
be considered.
The minimum level set by the Health and Safety Executive for any permanently occupied area is 200 lux. Areas that are not continuously occupied, such as circulation spaces, do not need to have this level.
Hope you'll find the above useful.
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Posted By Alan Hoskins
Tom,
HSG38 does refer to 100-200 Lux for (engineering) workshops.
In my view that is insufficient (even 200 Lux is dim) and I would provide a higher level in the region of 300-500 Lux where possible.
This could be achieved by introducing a general level of 300 Lux with local task lighting up to 500 Lux on appropriate machinery.
Alan
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Posted By Chris Packham
Occupational Health (Harrington, Gill, Aw, Gardiner) give the following values:
Circulation areas (e.g. corridors, stairs) 100-150
Entrances, lobbies, waiting areas 150
Enquiry desks 500
Factories 300-500 (depending upon the degree of detail to be viewed)
Offices (general at desk) 500
Office (drawing boards) 750
Chris
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Posted By Tabs
I agree with Alan that 200 lux (correctly quoted from HSG38) is dim by modern standards and will lead to noticeable differences in lighting conditions if windows are prevalent (by that I mean people will notice when it clouds over, or the sun shines). It is meant as a minimum for safety standards, not an ideal for quality standards.
500 lux tends to even lighting conditions out a lot better, and my very unscientific observations suggest other benefits such as comfort and housekeeping improvements.
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