Typical Problems Encounted During Ex p / Ex v Inspection
Published
Read Time: 5 mins
Throughout any inspection campaign non-compliant issues are going to be found. Here are some common issues we have found whilst conducting inspections on pressurised/ purged or ventilated equipment.
- If an Ex p or Ex v house or container, no Statement of Assessment (report) exists to indicate compliance to an acceptable standard
- Installed equipment, intended to operate until the environment is purged and/or pressurised, is not explosion protected
- Ex p: The minimum internal overpressure cannot be achieved as per the design standard
- Ex v: The minimum flow rate cannot be achieved as per the design standard Door or cover seals are perished or missing
- Documentation missing or incorrect
- Certificate of Conformity not read
- Labels missing or illegible
- Cable damage
- The inlet and outlet ports are not positioned correctly
- Inadequate protective pressure / flow
- Dirty filters
- Pressure outside the permitted range
- Faulty instrumentation, gauges and meters
- Build up of dust or dirt
- Incorrect application or use of the equipment
What others can you think of?
This material is produced by HAZ. The information is of a general nature only and should not be relied upon. Each set of
circumstances associated with compliance of hazardous
areas and Type
B compliance
is unique and expert advice on your particular circumstances should be sought. HAZ accepts no liability for any reliance on the
information published on this website.