Question 1
After 2008, are you allowed to install uncertified cable glands in Ex e equipment in Zone 2?
- Yes, as long as it is made of brass.
- No, all cable glands shall be certified.
Electrical Installation in Ex-area
CBT 32 questions
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Question 2
Can we modify the purge time on a Ex «p» enclosure?- Purge time is not applicable for Ex p enclosures. Only T-class.
- No, unless the documentation from the manufacturer states otherwise.
- Yes, adjustable depending to customer requirements.
Question 3
Can we use Ex «e» cable glands as a direct entry to a Ex «d» enclosure?- Depends on the Zone.
- Yes.
- No.
Question 4
Can you install a Ex d IIA T6 enclosure in a IIC environment?- No, the enclosure is not designed for IIC gasses.
- Yes, but not for a IIB gas.
- Yes, IIA gasses are «worse» than IIC gasses.
Question 5
Can you use greased tapes (like Denso tape) on flanged Ex d enclosures in a IIA environment?- Yes.
- No.
- Only if the gap in the enclosure is below 0,01 mm.
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About this CBT test
Electrical Installation in Ex-area is a CBT test with 32 questions and verified answers. Common topics include: flame path, zones equipment, enclosure, enclosures, iic, environment, concept, install.
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