current cyring capacity of .75sqmm copper cable

Answer Posted / shahzad

current density =current/area
as the current density for copper is normaly 3 so
3=current/.75
current=3*.75=2.25A

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

why single CT used in DOL starter power circuit?

2065


(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

1423


we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.

1578


What is the exact minimum vale of voltage between an earth and netural which can damage or can do malfunction of the electronic equipments ? If this is mentioned in any book, pl.give reference.

1819


what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

1415






ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?

2464


plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in

1658


what is the value of combined earthing in general electrical circiut?

1460


Why is negative feedback invariably preferred in closed loop system?

1758


What is EMC filter in VVVF Drive ?

2134


what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

1490


sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

1065


Best way to measure the Soil resistance of rocky soil, three probe method and four probe method

1458


Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT? 

1460


in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2155