Interested to Buy Any Domain ? << Click Here >> for more details...
What is the difference between double compression
- 7 Answers
- 58652 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
how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.
Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.
1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks
Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com
There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2
What is deference between MCB & MCCB & ISOLATOR
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design
What is a dc motor?
what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R
L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.
what is the purpose of shading ring or shading coil in electrical equipments.
What is ideal IR values for ground and neutral.
what is difference between earthingpits,earthing grid & earthing mess?
Why single phase induction motors are not self starting ?
