Interested to Buy Any Domain ? << Click Here >> for more details...
What are the point of a single core cable to be earthed?
- 2 Answers
- 6315 Views
- Alfanar, Jindal, I also Faced
- E-Mail Answers
Answer Posted / 7anoter4
The grounded point of a cable shield[or screen] could be :
1)at the supply side-usually is not necessary since the
supply side is enclosed
2)at the far end-is better for receiver security.
3)if the built-up voltage-due to induction produced from
the current flowing in the main conductor-is elevated [more
than 25 V usually limited]then a middle point grounded will
reduce this voltage to a half.
4)Both ends-if the middle point it will not reduce enough
the built-up voltage.
However, the circulating current will produce a
supplementary heating of the main conductor and then a
derating factor should be introduced.
There are also other means to overcome this by cross-
bonding the shield and even the main conductor, also.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
how can we calculate the ratio of caustic soda and water in lrs.
What is UPS and How do you maintain the UPS Maintenance? Brief Description on UPS maintenance.
What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?
What is different between Circuit breaker and Isolater?
what is RFID? thire application;
why we use sinosidal voltage / current instead of others in system?
in my industry we are using 3 step up transformers for induction heaters..i.e 415/580v and other are 11/440v.in power consumption does a step trnsformer makes any difference compared to step up?? plz explain
A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.
What is the Surge suppresor? Why using in a UDB's and How it works?
Why you are switching off arc protection mcb when you are taking shutdown for lv board.
How to megger test 11 kV cable and the acceptance IR value
What Is Sampling?
How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.
Why do we need interlocking in a HT metering or Ring main unit switchgear?
A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is
