Tag
#ex
3 topics across all disciplines.
Hazardous areas — zones, gas groups and Ex protection explained
Why a light fitting in a refinery costs ten times a normal one. Zones and divisions, gas groups, temperature classes, IP ratings, and how to read an Ex certification label.
Ex installation and inspection — where compliance is actually won or lost
Certified equipment is the easy part. Glands, unused entries, flame paths, IS segregation and the inspection regime are where hazardous area compliance is genuinely decided.
Intrinsic safety — protecting the circuit instead of the enclosure
Why instruments use a protection concept that limits energy rather than containing an explosion, how barrier and field device parameters are matched, why cable length is a safety limit rather than a signal one, and what a zener barrier depends on absolutely.