Cable Size

It is not possible from the description given.

no sir,it is there,our consultant provide me this size for the main cable from generator to MDP.The full specification is 6 * 3.5c * 350 mm.sq (XLPE / pvc) + 1c * 300 mm.sq PVC (G/Y).I understand 3.5c * 350 mm.sq,but i dont know what is this 6 for ?

Ah! That's the specification!

See #3↓.

How many generators are connected to MDP? What is the out put of the generator?

Two generators of 1000 kva each.

In your Main Distribution Panel, is there provision to connect, six numbers of 3.5c X 300 mm² cables? Do you get the drift of the hint?

6 cables in parallel? Ask the consultant.

May be the spec is like 6 X 3.5C X 300mm2 . if , it is , then normally it is treated like 6 runs of 3.5 core 300mm2 cable. But , then again , you can always ask ur consultant .

Yes ofcourse,it is 6 x 3.5c x 300 mm.sq.But once again what is meant by 6 runs,because there is one more cable with 8 x 3.5c x 300 mm.sq size.

The number of runs is the number of discrete cables of the specified type configured in parallel. Don't take this thread's word for it, though. Telephone the consultant instead.

The single cable is a grounding cable; note the G/Y color. The other six cables are in parallel; each of the them has three line conductors plus a smaller sized neutral.

Why not ask your consultant?

It is a bunch of 6 cables, each cable has a cross-sectional area of 3.5mm².The overall cross sectional area of the cable bunch is 300mm²

^{The actual current carrying capacity of the CABLE CAN ONLY be determined from MANUFACTURER'S TABLES.}

^{Note that the current rating will depend very much on the AMBIENT TEMPERATURE of your locality.}

I think it mean 6 bundle of 3C+PE cable which have 3Cx300 sq.mm. + PE 150 sq.mm.