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.
The weight of 350 MCM (thousand circular mils) per foot depends on the material it is made of. For example, copper 350 MCM wire weighs approximately 2.6 pounds per foot, while aluminum 350 MCM wire weighs around 1.6 pounds per foot.
Most likely it will be a cable speedometer...I don't own a 94 350 so I can't say for SURE, but I do own a 2003 Big Bear 400 and it's a cable speedometer.
It is 350 mcm cable and Table 310-16 1996 NEC gives limiting values of 260 amps at 60 degrees C up to 350 amps for 90 degrees for copper, or 210/280 amps for aluminium.
Using the AWG for wire sizes only goes up to 4/0. After that the increases use MCM to size the wire. So your 262 MCM wire size will be same in AWG. There is no 262 MCM in the North American market place. It goes in 50 MCM increments starting at 250 MCM , 300 MCM, 350 MCM, 400 MCM right up to 2000 MCM cable.
A 250 MCM copper conductor with a insulation factor of 75 or 90 degrees C is rated at 255 and 265 amps respectively. This conductor can only be load to 80% capacity which allows a working current of 204 and 212 amps respectively. To obtain the full capacity of 250 amps a 350 MCM conductor will be needed. The amp rating for a 350 MCM conductor with an insulation factor of 90 degrees C is 325 amps. 325 x .8 = 260 amps.
The current rating of 350 MCM aluminum wire for direct burial will depend on the specific environment and installation conditions. It is recommended to consult the National Electrical Code (NEC) or a qualified electrician for precise calculations and to ensure safety and code compliance.
177 mm squared is equal to 350 MCM AWG.
The amp rating of a 500 MCM (thousand circular mil) cable can vary depending on the insulation type and installation conditions. Generally, a rough estimate for a 500 MCM cable with THHN insulation in a typical installation would be around 380-400 amps. However, it is recommended to consult the manufacturer's specifications or a qualified electrician to determine the exact ampacity for a specific application.
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.
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.
A parallel run of 750 MCM AWG conductors will handle 1000 amps. if we want 1000amps to flow, 250sqmm cable is enough.