In LT cables 3.5 core cable are available that means 3 core and .5 for neutral W

In LT cables 3.5 core cable are available that means 3 core and .5 for neutral Why .5 for neutral and is there any reason for that please suggest
thanks and regards pavan kumar

Question Posted / pavan kumar viswabrahmana

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In LT cables 3.5 core cable are available that means 3 core and .5 for neutral Why .5 for neutral an..

Answer / amarjit singh

becase in neutral always unbalanced current flow in 3 phase system if current in amp R=25 A,Y=22 A AND B=20A only 5 amp current flow through neutral thats why in 4 core cable neutral diameter less than phases .try it practically

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