Electronic Equipment Manufacture
Electronic equipment manufacture involves precision placement of tiny components, so good quality glare-free lighting is essential.
Many manufacturers have their own specifications, but typical values are between 500 and 1000 lux, UGR limit = 16 or 19, and minimum uniformity of 0.6 or 0.7.
Many electronic components are colour coded, so CRI 80 is the lowest acceptable colour rendition standard, and CRI 90 is frequently specified.
Based on CIBSE: SLL Lighting Guide 1 - The Industrial Environment 2018
|Application||Maintained illuminance (lux)||UGR Limit||Minimum uniformity (U0)||Ra|
|Assembly of precision components, e.g. telecommunication equipment, adjustment, inspection and calibration||1000||16||0.7||80|
|Assembly of high precision parts||1500||16||0.7||80|
|Printed Circuit Boards|
|Hand insertion of components, soldering||750||19||0.7||80|
|Assembly of wiring harness, cleating harness, testing and calibration||750||19||0.7||80|
|Inspection and Testing|
|Safety and functional tests||300||25||0.6||80|
|* Many users have their own specifications|
Glare can be an issue, so luminaires with good optical control and low luminance are ideal for these applications. This is often made all the harder due to the high light output often needed. Adjustable task lighting may also be beneficial.