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What size steel wire armoured cable for 40 amps 230 volts at 500 meters away?
Wiki User
∙ 9y ago
On a 230 v supply assuming a volt-drop of 5% that is 11.5 v, so the maximum cable resistance is 11.5 / 40 in ohms, 0.2875 ohms so for 1000 metres of cable in total you need a cable that has 0.0002875 ohms of resistance per metre.
Copper with a cross-section of 1 mm2 has resistance of 0.0168 ohms per metre so the size of cable needed is 0.0168 / 0.0002875 mm2, which is 58.43 mm2, so a cable of 60 mm2 should be selected.
Wiki User
∙ 9y ago
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What size armoured copper cable needed for 75 kW motor?
Wire sizing is based on the motors full load amperage. The amperage can be calculated but a voltage has to be stated. I = W/E. Amps = Watts/Volts. Restate the question with a voltage and an answer can be given.
What is the cable size of 110 KW motor?
The cable size depends on a few factors, such as the supply voltage, the method of starting the motor, (direct-on-line, or star delta) and the length of cable required to compensate for voltage drop. Also, if the cable is copper or aluminum.110 kW motor has a rated current of 200 amps at 415 volts, so the correct copper cable size would have a cross-sectional area of 75 square mm., if the motor is started direct-on-line.At 660 volts, the rated current would be 118 volts and the cable size would be 35 square mm.
In instrument cables with a rating of 600 volts can you use a megger tester with a 250 voltage range?
Yes, you could, but why would you? Maintenance or fault testing on a cable rated at 600 volts involves applying the rated voltage (600 volts) and measuring the leakage current. Doing this test at 250 volts doesn't really test the cable. High potential (hipot) testing involves the application of even higher voltages for test purposes.
What are high voltage electric wires made of?
Primary utility wiring uses an ACSR cable, (Aluminium Conductor Steel Reinforced). The multiple strands of aluminum wires are wound around a center steel cable. The steel center is used to allow longer spans between poles or towers. Ordinary aluminum wire can not be long spanned because its weight would break the wire. All other high voltage wiring is done with different insulation thicknesses dependant upon what the voltage is. The higher the voltage the thicker the insulation. Insulation of the wires stops when the conductors carry kilo voltages usually above 5000 volts.
What is the current carrying capacity of a 3 core 70mm cable at 400 volts ac?
the current rating of a 70mm swa 3core cable is 1.2 amps buried or 2 amps on perforated cable tray suspended 500 feet above sea level in antartica
What is the volt drop on a cable 912 meters 480 volts and load of 54 amps?
The volt drop on a cable 912 meters 480 volts and load of 54 amps is 5% if you use 2/0 AWG wire and 2.4% if you use 300MCM wire. See Related Links below
What size armoured copper cable needed for 75 kW motor?
Wire sizing is based on the motors full load amperage. The amperage can be calculated but a voltage has to be stated. I = W/E. Amps = Watts/Volts. Restate the question with a voltage and an answer can be given.
What kind of electric cable is capable of 240 volts transmission?
When cable reference is made about voltage it is the cables insulation factor that comes into play. Cables in North America have common voltage ratings of 300, 600 and 1000 volts. A cable capable of handling 240 volts will have a rating of 300 volts. The ratings of each specific cable is printed on the cable's outer jacket.
Why would four core armoured cable be used in a single phase circuit?
A four-core armored cable might be used in a single-phase circuit for added protection against physical damage or environmental factors due to its armored construction. Additionally, the extra cores could be used for future expansion or for running multiple circuits within the same cable.
What is the minimum bend radius for the diameter of cable?
It depends on the cable. 0 to 5000 volts the minimum bending radius is 6 x diameter of the cable. Above 5000 volts the minimum bending radius is 8 x the diameter of the cable.
What is the voltage drop for 16 mm Cable over 100 meters?
The voltage drop depends on the current through the cable.For DC current in cable of 16 mm diameter, at 68° F, the voltage drop is(0.00857) x (current, Amperes) volts.
Why would there be 9.8 volts on ground cable when tested from ground cable to battery ground?
Something is shorted to ground.
What is the temperature rating of non-metallic sheathed cable?
Non-metallic sheathed cable typically has a temperature rating of 60°C (140°F) for general use and 90°C (194°F) for certain applications. It is important to always check the manufacturer's specifications for the specific type of cable being used to ensure it is suitable for the intended application.
How many amps in 220 wire?
There are zero amps in 220 wire. When you talk of 220 wire you are making reference to the insulation factor of the wire. Wire in North America is rated for insulation in increments of 300, 600 and 1000 volts. For special applications 5000 volts still has insulation on it. Then there is 7500 volt cable that is classified as concentric neutral cable which is used mostly for underground primary installations. Any voltages higher than that is bare wire. For high voltage installations it is called ACSR. Aluminium Conductor Steel Reinforced. This type of cable uses a steel center support wire and the aluminium conductors are wound around the steel to carry the amperage. This combination of steel and aluminium allow the wire to be spaced over long distances between poles or towers. The amperage classification of wire is based on the circular diameter of the wire. The larger the diameter of the wire the higher the amperage capacity. Three equations to find amps when two factors are known are; Amps = Watts/Volts, Amps = Volts/Resistance and Amps = the sq. root of Watts/Resistance.
Can a 125 volt cable power a 120 volt piece of equipment?
The first thing we have to do is clarify the question. A cable rating of 125 volts is an insulation rating of the wire. Like wire with ratings of 300 volts, 600 volts and 1000 volts these are the highest allowable voltages that can be applied. A wire that is rated for 300 volts is good for 120 volts, 240 volts and 277 volts. At test research facilities, equipment is tested to destruction. The label that is given to wire as a result of the tests is the highest safest voltages that can be applied to that particular wire. So when you see a wire that has a label stating that it is rated for 300 volts it means that any voltage under and up to 300 volts is safe to apply. So to answer the question yes, the 125 volt insulation rating on the cable can be used to supply a source of 120 volts to a 120 volt rated piece of equipment.
Is 13 volts on a battery mean your alternator is bad?
Not necessarily. There are a lot of factors that can keep you from reading 14 volts at the battery, such as corrosion in the cable from the alternator to the battery.
How deep do you bury 120v wire?
Minimum coverage for non vehicular areas; for conductors or cable not having a metal sheath or armour, under 750 volts, the required depth is 600 mm. For conductors or cable having a metal sheath or armour, under 750 volts, the required depth is 450 mm. Minimum coverage for vehicular areas; for conductors or cable not having a metal sheath or armour, under 750 volts, the required depth is 900 mm. For conductors or cable having a metal sheath or armour, under 750 volts, the required depth is 600 mm.
