Answer / a.sripathi reddy

In addition to above answer,Cable rating /size selection
based on 1.voltage drop 2.Voltage level 3.Cost

Answer / santosh

Cable Sizing to be selected based upon many factors, some of
these are:
1. Total connected load to be considered with 25% spare
and maximum demand current in AMPS to be calculated. This
will be maximum ampacity.
2. Derating factors such as length of cable to be laid,
Type of installation of cable in medium ( In air, Duct,
Directly buried in earth).
3. Thermal resisivity of soil at 2.5 deg C/m, correction
factor for cables, no of cables laid.

Answer / murad

cables are used for carrying power to desired
destinations.manufacturers of cables provide apmere rating
tolerance for each cable with their booklet.for someone's
use one should follow the tables and desired amperer and
corresponding cable.

Answer / ritesh khimani

in addition to above answer i think distance upto which
cable has to csrry the power and also atmospheric condition
of the site at where the cable will be installed is also a
very important factor.

Why use the VCB at High Transmission System ? Why can't use ACB? Pls explain the ans.

5 Answers   amps, DLF,

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why we use 630mm single core cable for transformer secondary side and why two neutral cable

0 Answers   Technicare,

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c++ write a program to use a fuction call "max"which accepts an intger arrey of size5.as an arrument and return the larger and smallest of the arrey to main without changing. the original changing of the original position of the element of the arrey.

0 Answers  

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how many safety really of DG sets.

0 Answers   MBD, Nerolac,

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In a 3 phase system a neutral exists so that any unbalanced currents can flow through it towards earth.... but a phase demands a particular current as per the load attached to it....then where does the extra current come from the goes in the neutral??....I mean in an unbalanced system a phase demands a current as per its load attached....then where does the unbalanced current come from??

1 Answers  

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how to select cable size?

4 Answers  

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What happens to an electric motor if it has poor or no ventilation. Will it burn out? If it will, how long it will run before it burn out?

5 Answers   GMC,

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Why we use stones in switchyard?

3 Answers   Havells, L&T,

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What is the function of wave trap in an electrical substation?

2 Answers  

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What is the important parts of SF6?

2 Answers  

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what is H.T?specify the range?

6 Answers  

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what is the natural resistance of the earth? and how it effected by rain r snow? wat is the natural resistance of wet soil? define natural resistance?

1 Answers   ECL, ISRO,

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