Answer / eswarudu.guddati

3.5 core cable means 3 cores is belongs to RYB (PH-1,PH-
2,PH-3) and .5 cor means either nuetral or ground conductor.

Answer / mohd. karim

3.5 means
R, Y, & B phase are have same dia.
and forth wire have just half dai of rest 3 Phase i.e. RYB

Answer / ashesh shah

The 3 indicates RYB and .5 Neutral. In normal conditions,
power supplied is balanced. So, no neutral current flows.
But in case of small unbalanced condtions, low amount of
neutral current has been found and hence to provide the
path for it, neutral wire is provided with half of the
cross section that of phase.

Answer / md.shahid karim

three core having same dia and 4th having half dia as
compared to first three.

Answer / raman235

1.economic compared to 4core.
2.less size compared to 4core.

Answer / x man

actually they are mainly choosen to prevent the eddy
current caused due to induction in the gland plates of
Electrical control panel

Answer / shivaprakash.t.v

Resistance of 3 core and 3.5 core remains same.

Answer / sathya

3 core

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