What is the difference between double compression
- 7 Answers
- 56639 Views
- Bhel, Hyundai, Orchid Chemicals and Pharmaceuticals, PDO, Prefamac, I also Faced
- E-Mail Answers
Answer Posted / ajay
Although # 4 answer is on right track. But apart from area
classification, mech grip is also equally imp. to Sum up:
Ex'e'(single compression) equal to IP54.(IEC 60079-0,7)
Ex'd' (double compression) equivalent IP66. (IEC 60079-1).
Double is better always... but may not be necessary for all
applications.
| Is This Answer Correct ? | 1 Yes | 10 No |
Post New Answer View All Answers
what is the concept of directional power?
What is the Nyquist criterion regarding control systems?
What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???
What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor
WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?
how pt is using
11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?
how can we make cable shedule for controll wiring ? which details must be required for it.?
who many types of fire explane with exmple
The windings of a transformer are divided into several coils, because?
how much cable size required for 70 kilowatt load.
Which capacitor is preferred for high voltage and frequency?
With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.
diff b/w elcb and rccb
What is conventional thermal current (Ith)
