Cable Cross-Section Calculation

Cable Cross-Section Calculator

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Calculation results

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Information

Electric cables and wires are the backbone of the energy system. If they are selected incorrectly, it can lead to numerous problems. When renovating a house or apartment, and especially when constructing a new building, pay proper attention to the wiring diagram and the correct cable cross-section for the power supply, which may increase during operation. It is important to understand which cable cross-section is needed to connect various devices, especially in a house with 220V voltage.

To purchase a suitable cable, it is necessary to accurately select its cross-section in accordance with all conditions. A proper calculation of the cable cross-section by power or current will allow the cable to operate uninterruptedly under maximum load, ensure the necessary current voltage, and the protective mechanisms will function correctly, preventing overload and overheating. For this reason, an extremely accurate calculation of the cable cross-section by current and power should be performed. This is exactly what our online calculator provides.

Calculations are carried out for any cable using a special formula. To apply the wire calculation formula, you will need to gather the necessary information, including the cable core cross-section and the manufacturing material, whether it is a copper or aluminum cable. It is also important to consider that the calculation of the cable cross-section by wire diameter and load plays a key role in ensuring the safety and efficiency of power supply.

The following data is required for the calculation:

  • Detailed information about the network voltage to which the cable will be connected;
  • The number of phases (single-phase or three-phase);
  • The cable laying method (12 methods);
  • Starting power factor;
  • Current, expressed in kW;
  • Required cord (cable) length;
  • Cable temperature;
  • The material from which the cable is made (copper or aluminum);
  • Type of insulation (insulated or non-insulated cable).

Considering the functionality of our online calculator, it should be understood that the cable cross-section calculation is carried out based on numerous input parameters. The more accurate the data entered by the user, the more reliable the calculator's result will be. Based on the list of necessary parameters and conditions, it can be concluded that the calculation is performed not only by current and power but also by length and load. The calculator's functionality allows for calculating current power (in Amps), the calculated cable cross-section (in mm²), wire resistance (in Ohms), final voltage (in Volts), as well as voltage losses. All these final indicators allow for selecting not only the appropriate cable but also protective devices: RCDs, circuit breakers, or differential circuit breakers.

The process of calculating the required cable cross-section using our online calculator includes several key steps: the user specifies the necessary data indicated in the calculator by entering them into the appropriate fields; additional conditions are selected (for example, cable length); after entering all the parameters, there is no need to press any buttons, as the calculator automatically calculates everything during the input process. The calculation results will be displayed in the corresponding fields.

Using our online calculator will allow professionals in the relevant fields to minimize the likelihood of errors and save time, eliminating the need to independently calculate the wire cross-section by power or current. You only need to enter the most accurate data and get a ready answer that will help correctly select the power cable cross-section for the home.