What is the Derating factor of power cables when exposed to
direct sunlight in (both PVC & XLPE).
Answer Posted / william lobo
Generally all cables are rated for ambient temperature. Now
temperature varies from place to place and hence we have
tables showing cables in air and cables buried underground.
Then there is cables spaced between one another which is
more important aspect.
Cable current carrying capacity should also be based on our
own judgement. The table only is a guide. Its just to help
us get the correct size cable for your requirments. So all
these factors help us in deciding the best size cable for
our load. Distance is also an important consideration due
to more voltage drop.
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
Yazaki india pvt ltd interview questions qurey related
All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?
Why AC & DC capacitor are use in UPS ??????????????????
What are the operation carried out in thermal power station?
WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT
sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers
WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???
can i connect wavetrap in 2 different phase in EHV line?
state the working principle of incondenscent tube?
what is the voltage rating of chiller unit sensors
how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........
8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......
What is the different types of cable & current capacity of cable
Can you explain about pole discrepancy scheme
WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB