What is the difference between double compression
- 7 Answers
- 56666 Views
- Bhel, Hyundai, Orchid Chemicals and Pharmaceuticals, PDO, Prefamac, I also Faced
- E-Mail Answers
Answer Posted / shirsendu saha
I don't think any of the above answers are completely correct.
Single compression and double compression glands are used on
the basis of area classification.those who are affiliated
with oil and gas sector they will easily understand about
area classification.in zone 0 where the presence of
hydrocarbon is obvious (IIC)double compression gland is used
because the flame path in case of double compression gland
is much more than in case of single compression gland. the
logic behind this is that if there is any explosion inside
the terminal box of the motor no flame should be able to
come out through the cable gland in order to prevent fire
hazards but where there is no presence of hydrocarbons i.e
no danger of fire hazards (IIA/ IIB)single compression glads
are used. it has nothing to do with mechanical strength.
even in case of lighting fixtures used in IIC zone double
compression glands are used.
| Is This Answer Correct ? | 89 Yes | 13 No |
Post New Answer View All Answers
WANTCONTACT NUMBER & EMAIL/ WEBSITE TO CONTACT THE SECRETARY,MADHYA PRADESH LICENSING BOARD(ELECTRICAL),K- BLOCK,3RD FLOOR,SATPOODA BHAWAN,BHOPAL
what are the 4 rules to start the motor?
For RCD (Residual current device) Icu is defined. How i can find Ics for them?
Refernce currents are to be generated using refernce cueernts how can this be done??
How much earthing frequency is capable?
how pt is using
what is the major difference between LIBBP & HIBBP.. which one is most preferable..
how to identify vector group of three phase transformer by voltage method?
Why the cores of large transformers build up of circular cross section?
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB
how to synchronize 3 phase slip ring induction motors of different ratings.
What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.
why the pf of semiconductor device is improved the electrical devices
How to calculate MCB Breaking capacity.
