what is derating factor in Cable ? how we minimise this?
Answer Posted / amit
Derating factor of cable is depends upon following factor
1)Cable laying depth
2)Ambient temperature
3)Ground temperature
4)Parallel cable distance
| Is This Answer Correct ? | 30 Yes | 4 No |
Post New Answer View All Answers
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
What is mean by spike arrester(Voltage Operated)
how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com
How to Make relay co ordination chart for a Electrical power distribution of a plant
WHAT IS THE USE OF PIG TAIL IN WINDOW CT ?
why wire sizes are 3/29 or 7/29 and why not wire sizes are 2/29 or 6/29?
Salient pole alternator is more stable, why?
In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.
In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?
what is difference between cpp electrical system and refinery electrical system
what is a pilot wiring and whys that called a pilot wiers
The loads are connected with phase and ground then why current flow as the loads ?
Difference between rating factor of cable and derating factor of cable?
Which power will flow first if we switch on a motor Active or Reactive? How?
Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir