The bare conductor is about 1.05 lb per foot. Insulated wire weight varies by type of insulation.
A three phase four wire system, the neutral is included in the wire count. It is the fourth wire so no extra neutral needs to be counted. In North America a 3/0 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 200 and 225 amps respectively. The electrical code states that a 53 mm or 2" diameter conduit can have up to five 3/0 conductors pulled into it.
I have checked all over the web and then over it again. According to MCM there will be a season 2, but it will be a bit until it is aired on TV.
There are many benefits of the narmada river. It is submitted that the State of Gujarat in its counter affidavit has claimed that increase in height of the dam from 110.64 m to 121.92 m would lead to three kinds of benefits: Drinking water, Irrigation and Power. Thus, when dam height was increased from 100 m to 110.63 m, State of Gujarat claimed that this will lead to: Ø Availability of 3.5 Million Acre Feet (MAF) water for Gujarat and Rajasthan Ø Additional irrigation to 2.18 to 5 lakh hectares. Ø Increase in storage capacity from 2600 Million Cubic meters (MCM) to 3700 MCM. Ø Sufficient water for taking drinking water to whole of Gujarat. for more details visit the undersigned http://narmada.aidindia.org/content/view/40/26/
what is the weight of 300 MCM Copper wire
0.75 pounds per foot
The diameter of an insulated 750 MCM copper wire is 1.25 inches. The insulated 750 MCM copper wiring has 61 strands and has a weight of 2.7 pounds per foot.
500mcm 37 strand copper wire = 1.544lbs/ft.
1.385 pounds per foot
About $10 a foot on 10/31/2012.
From the question it is hard to establish whether the service size is 350 amps or the service conductors are 350 MCM in parallel. If the service is 350 amps, the grounding conductor is #3 bare copper wire. Parallel 350 MCM conductors will allow for a 600 amp service. The grounding conductor for a 600 amp service is a #1 bare copper wire.
A 350 MCM copper conductor with an insulation rating of 90 degree C is rated at 350 amps.
A 500 MCM copper conductor will limit the voltage drop to 3% or less when supplying 350 amps for 150 feet on a 208 volt system.
2.2 lbs per ft
There is no defined AWG for 350 MCM. The American Wire Gauge stops at 0000 (4/0), and 350 MCM is bigger than this. An approximate conversion would be 6/0, if there were such a thing. Extrapolating out from 4/0, 6/0 is 334.8 MCM, and 7/0 is 422.2 MCM. These wire sizes don't exist of course, and don't exactly match 350 MCM anyway.
There are different combination to obtain a current capacity of 1250 amps. A parallel run of #1250 MCM wires. A triple run of #600 MCM wire. The most flexible run would be with a quad run of #350 MCM wire.