Typical Problems Encounted During Ex t, tD and DIP Inspections
Published
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Equipment designed and certified for use in a combustible dust environment has some unique issues. The depth of dust layer that is permitted
to form is limited, depending on the certification options. In general, NO amount of dust is a good amount of dust.
- Documentation missing or incorrect
- No certificate of conformity
- Not IECEx or ANZEx certified with no Conformity Assessment Document.
- Labels missing or not illegible
- Cable damage
- Poor cable termination techniques
- Uncertified cable glands or glands not having the correct IP rating for dusts (IP66)
- Damage to the enclosure seals
- Wet dust/fibres caking on heatsink fins of motors
- Uncontrolled layers of dust on the equipment
- Poor housekeeping
- Poor working practices, like using air to move the dust around.
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.