To use the online calculator for calculating the cable cross-section, it is necessary to collect the information necessary to perform the calculation of the dimensions. As a rule, it is necessary to obtain the following data:
- A detailed description of the load that the cable will carry
- Cable purpose: for three-phase, single-phase or direct current
- System and/or source voltage
- Full load current in kW
- Total load power factor
- Starting power factor
- Cable length from source to load
- Cable construction
- Cable laying method
Tables of copper and aluminum cable cross-sections
When determining most calculation parameters, the cable cross-section calculation table presented on our website will be useful. Since the main parameters are calculated based on the facebook data current needs, all initial parameters can be calculated quite easily. However, the brand of cable and wire, as well as understanding the cable design, also play an important role.
The main characteristics of the cable design are:
- Conducting material
- Conductor shape
- Conductor type
- Surface coating of the conductor
- Insulation type
- Number of cores
The current flowing through the cable creates heat due to collection and analysis of the semantic core in the conductors, losses in the dielectric due to thermal insulation and resistive losses from the current. That is why the most important thing is the load calculation, which takes into account all the features of the power cable supply, including thermal ones. The parts that make up the cable (for example, conductors, insulation, sheath, armor, etc.) must be able to withstand the increase in temperature and the heat emanating from the cable.
The capacity of a cable is the maximum current that can flow continuously through the cable without damaging the cable insulation and other components. This parameter is the result of italy numbers load calculation to determine the overall cross-section.
Cables with larger conductor cross-sectional
Areas have lower resistance losses and can dissipate heat better than thinner cables. Therefore, a 16 mm2 cable will have a higher current carrying capacity than a 4 mm2 cable.
However, such a difference in cross-section is a huge difference in cost, especially when it comes to copper wiring. That is why it is necessary to make a very accurate calculation of the wire cross-section by power so that its supply is economically feasible.
For AC systems, the method of calculating voltage drops based on the power factor of the load is usually used. Generally, the full load currents are used, but if the load was high at startup (e.g. a motor), then the voltage drop based on the starting current (power and power factor, if applicable) must also be calculated and taken into account, since low voltage is also a cause of failure of expensive equipment, despite modern levels of its protection.
