what formula can be apply to calculate the No of rtrand of a cable. ?
Answer Posted / guest
N=3L(L-1)+1 Where N=No of strand L=No of layer of cable. ie A single layer(single strand) N=3*1(1-1)+1=1 A double layer cable N=3*2(2-1)+1=7 And in three layer cable N=3*3(3-1)+1=19 And . so on ........ But Now-a-days some manufacuture company does not supply the exact size (No of strand) of cable for economic benefit.
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?
Explain what is use of lockout relay in ht voltage?
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
what are the specifications we must look at to select a relay for any capacity motor?
how do you choose the cable size as per amps rating & the voltage drop for the same.
why do we carry out winding resistance test?
What Maximam Gap Taibaar & Bush
How can we convert 11 kv to 440 volt without using transformer ?
how much leakage current is allowed in MC61A L&T make relay?
How test for Ddo vector group test condition?
in science exhibition how lamp can blink when you clap near the lamp ? thank you
Hi.. I am a BE GRaduate in E&E. I have 8.5 Experience in Tendering & Estimation field. I have done SAP SD course few years back. But due to some reason i failed to get job in that field and continued my own field. Now I am thinking of changing into SAP seriously. How should i go ahead???
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
What are different types of control systems?
Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?