Minimum maintained illuminance for facilities for drop forging, welding, cold forming in Vietnam must be 300 Em

19:44, 10/07/2024

This is a notable content regulated in Circular 22/2016/TT-BYT stipulating the National technical regulation on lighting - Permissible levels of lighting in the workplace in Vietnam

Circular 22/2016/TT-BYT stipulates that at facilities for drop forging, welding, cold forming, there must be a minimum maintained illuminance of 300 Lux. Additionally, for other facilities for metal working and processing in Vietnam, the minimum maintained illuminance is regulated as follows:

Type of room, work, or activities	E _m (Lux)
Mold and cast removal	200
drop forging, welding, cold forming	300
Rough and medium precision machining: tolerance ≥ 0.1 mm	300
Precision machining: tolerance < 0.1 mm	500
Marking and inspection	750
Wire drawing and tubing workshop (cold)	300
Machining with thickness ≥ 5 mm	200
Sheet metal machining with thickness < 5 mm	300
Manufacturing tools and cutting equipment	750
Assembly of components:
- Rough	200
- Medium	300
- Fine	500
- Precision	750
Galvanising	300
Surface treatment and painting	750
Manufacturing tools, molds, jigs, precision and micro-mechanics	1000

More details can be found in Circular 22/2016/TT-BYT which comes into force in Vietnam from December 1, 2016.

- Thanh Lam -

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