The guiding concept in selecting the appropriate cable size is how effectively your cable can handle the necessary current load in your installation environment without creating an excessive voltage drop from your supply voltage.
Once you have determined the cable’s load, consider the following factors that will influence the final cable size you choose. Going through the following factors may lead you to various suggested conductor sizes. The critical point is that the minimum conductor size you choose must be the smallest possible PVC insulated cable size that can cover all of the situations you have investigated.
With that in mind, here are five pointers to help you choose the best cable.
We look at this first since how and where the cable is installed directly affects whether or not it may be overloaded. In general, the more confined the cables are, the bigger the cable size may be required to guarantee it can handle the current and allow for adequate heat dissipation.
Cable Insulation Material
This would be due to the material’s other characteristics that function better in your installation scenario. PVC insulated cable, for example, is more flexible than XLPE. Hence, may be a better option when the cable must bend in narrower areas.
Depending on the installation requirements, you may also select between single-core and multi-core cables, influencing the cable’s current carrying capability. A single core cable can disperse heat more effectively than a multi-core cable and has a more significant current carrying capability. However, you may still choose a multi-core cable when you have the right Xlpe cable supplier in India since it may be simpler to attach all of the necessary conductors at once.
You need cable length to calculate Voltage Drop, which is the loss of electrical potential over the size of your cable run. A circuit’s voltage drop is mainly influenced by the cable size and length of a cable line. The higher the voltage loss, the smaller the cable size used or the longer the cable length needed for your circuit. If you discover that the voltage loss of the circuit has surpassed the specified 4 percent, you will need to upgrade your cable.
Keep in mind that cable routing and ventilation will have a direct impact on your ambient temperature. Therefore, it is essential to evaluate the installation condition throughout the whole length of the cable placed. If the temperature deviates from the norm, you must add a correction factor to the current load that your cable is anticipated to carry. The bigger your cable size may be necessary to handle the appropriate weight if your ambient temperature is higher than normal.
Number of Circuits
Xlpe cable exporter in Delhi assumes that you are installing a single single-phase or three-phase circuit. If you plan to group circuits in your installation, you must use a cable grouping correction factor to ensure that you choose the proper cable size to avoid overheating problems. The more circuits you plan to group, the more difficult heat dissipation will be. Therefore, you may need to upsize the wires appropriately.
Hopefully, this blog has given you a basic idea of some of the essential variables to consider when deciding on the lowest allowed cable size to use. You will need to choose the smallest economic size that can cover all of the circumstances you have investigated to guarantee that the PVC insulated cable does not become overloaded. Working closely with wires and cable exporters will also minimize any challenges you may encounter.