The cable size is equal to the 1.5 times of the full load current of the motor/load. Hence the cable rating formula can be written as, Cable size = 1.5 x Full Load Current .
What is the color code for 3 phase wiring?
Phase 3 – Phase 3 wiring should be yellow . Neutral – Neutral wires should be grey. Ground – Ground wiring should be green, or green with a yellow stripe.
What size wire do I need for a 3 HP motor?
| Three Phase (230 Volt) – Wire Size Selection Guide* | HP Cable Length | 3 14 14 | 5 14 14 | 7 1/2 14 14 |
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How many amps does a 3 HP motor draw?
| HP 1 Phase Amps 3 Phase Amps | 115 volt 460 volt | 3 34 4.8 | 5 56 7.6 | 7-1/2 80 11 |
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What is the formula to calculate wire size?
AWG: In the American Wire Gauge (AWG) system, wire size diameters can be calculated by applying the formula D(AWG)=. 005·92 (( 36 – AWG )/ 39 ) inch . For the 00, 000, 0000 etc.
What is the color code for wiring?
The protective ground is green or green with yellow stripe . The neutral is white, the hot (live or active) single phase wires are black , and red in the case of a second active. Three-phase lines are red, black, and blue.
What are the 3 phase Colours?
For three-phase cables the phase colours are brown, black and grey , instead of red, yellow and blue, respectively, and the neutral colour is now blue instead of black. Again the protective conductor is identified by the colour combination green-and-yellow.
What color wires go to XYZ?
I normally use Green for ground, White for Neutral, Black for X, Red for Y (and orange for Z on an L21-30). On the Cal Standard plugs and connectors the X is colored Red and Y is colored Black.
How many amps does a 5 HP 3 phase motor draw?
| HP 200 Volts 220-240 Volts | 3 11 9.6 | 5 17.5 15.2 | 7.5 25.3 22 | 10 32.2 28 |
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How do I convert HP to amps?
- Estimate the power in watts (the nominator of the expression), 1 hp * 746 = 746 W ;
- Evaluate the product in the denominator, 200 V * 0.92 * 90% = 165.6 V . ...
- Make a fraction of these numbers and find the final horsepower to amps value, 746 / 165.6 = 4.505 A .
How many HP is 15 amps?
| Amps Horsepower Efficiency | 15 A 2.17 HP 90% | 20 A 2.9 HP 90% | 25 A 3.62 HP 90% | 30 A 4.34 HP 90% |
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What are the color code standards?
1 pipe color code standard, which is the industry consensus standard for marking pipes. ... Blue with White Lettering – Blue labels with white lettering are used for pipes that transport compressed air. Red with White Lettering – Red labels with white lettering are used for all fire quenching fluids.
What is the color code for 480v?
The USA has their own wiring colors for electrical circuits, black, red, and blue are used for 208 VAC three-phase; brown, orange and yellow are used for 480 VAC.
What is the voltage of the blue wire?
| Colour Wire Function | Brown Live Is held at a voltage of 230 V and provides the current | Blue Neutral Completes the circuit | Green and yellow stripes Earth A safety wire to stop the appliance becoming live |
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Is red live or neutral?
The UK changed the standard wire colours in 2004: The live Red becomes Brown . The Neutral Black becomes Blue. The Earth wires continue to be Green and yellow.
Which Colour is neutral in 3 phase supply?
| Wire Colour | Live Brown | Neutral Blue | Earth Yellow and Green |
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