If it is a 480v 3 pH machine, #4 wire will be fine.
The messenger in triplex and quad is already determined by the wire size that is wrapped around it. It is the maximum span distance that you should find for the size of over head cable that is being used.
A 10 mm cable is most commonly used for a 500 KVA transformer, 240 volt, 3 phrase. The size of the wire that is used in a transformer is based on the voltage.
To calculate voltage drop to size the wire, a voltage must be stated.
The ambient insulation rating of wires and cables is imprinted on the wire and cables. The labels on the cables will tell you the wire size, number of conductors and temperature rating of the wires and cables. The higher the cable and wire temperature ratings the higher the amount of current that is allowed to be drawn by the wire and cable according to the electrical code book.
Lapp is the name of the manufacturer, but this is a 3-wire cable with conductors of 4 sq. mm. in size.
Here is a fine Wire Size Calculator. Scroll down to related links and look at "Wire Size Calculator".
To answer this question the size of the cable or the amperage of the load is needed to calculate the correct wire size and connectors to fit the cable.
:D
The recommended gauge size for a 100 amp cable is typically 3 AWG (American Wire Gauge) for copper wire.
American Wire Gauge. Measure the thickness of the cable.
How to calculate a cable size of 3kw motor
You need to know the amperage requirement of the pump and then you can calculate the wire size.
The only way to determine the cable wire size needed for a 1000 watt air conditioner is to find the load size. To get the load size you will need to use the formula Amps = Watts or Volts. With that being said, you will need a number 14 copper wire.
You can recycle cable by selling them to recycling centers or strip the insulation off with a tool like a wire cutter, a cable stripping machine etc. and sell the copper core in it.
Wire size becomes an electrical hazard when it is under rated for the amount of current (Amps or I) it has to carry.Current is the flow of electrons in a circuit. If the current is too large for the cable, the cable will be subject to heating, which is a possible fire hazard.
The wire size typically used for a 60 amp low voltage cable is AWG 6 or AWG 8 depending on the specific application and voltage requirements. It's important to consult the manufacturer's specifications for the appropriate wire size for your particular setup.
It really depends on what device you are connecting power to. It is not much of a concern if running the heavier 8ga. wire, into the lighter 10ga. wire, when dealing with a 12 volt system. There are variables that come into play when selecting wire size, such as amperage draw, and length of run. An 8ga. wire sounds like a battery cable for a small outboard engine. If dealing with a battery cable, it is good practice to replace the defective one, with a new cable of the same size. Always keep in mind, there is a reason that this size wire was used in the first place.