Type your answer here... 3.85
The current capacity of a cable varies depending on the type of conductor material, and the type and rating of the insulation. An excellent table that shows the capacity of different types of cables can be found here: http://www.myelectrical.com/pages/cables/cableCurrents.aspx?id=061112125012. Also, the current capacity of a cable will be limited by the electrical code that one is using, this varies in each developed country. Most American companies use NEC (National Electric Code) as there source for electrical codes (the most recent version being NEC2008), and much of the rest of the world will use ICC EC (International Code Council Electric Code).
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.
India Patent Stone (IPS) flooring is generally laid to 25mm to 40mm thick.
D*d/162 = 25*25/162 = 3.85kg/m
25mm = 0.025 meters (you divide mm by 1,000 to convert to meters).
1 Meter = 1000mm, Therefore 25mm is 25/1000's or 1/40th of a meter.
A cubic metre would make a 25mm thick cuboid covering an area of 40 square metres.
It will depend on the thickness of the plywood!
2.5 cm 0.025 meter 0.98425 inch (rounded)
Type your answer here... 3.85
You have to be specific. whether the conductor is aluminum or copper. Current carrying capacity will be different for these two types. Copper cable can take more load than aluminum cable for same diameter.
Half a meter
25mm. half a meter = 500mm 3.5cm = 35mm. 20cm = 200mm
25mm cable
suppose you have a gradient of (1:40) divide 1000mm by 40mm = 25mm so for every meter run gradient fall by 25mm till you get to the invert level. That's it.
28 millimeters is bigger. It takes 10 millimeters to equal 1 meter, therefore 2.5 cemtimerers is 25 millimeters