Recommendations for cable products

When designing the electrical network of the house, special attention should be paid to the correct choice of cable depending on the conditions of use and types of load. Mistakes made in the beginning create risks for the safe use of electrical equipment and are very difficult to correct in the future. That is why when choosing a conductor product, it is recommended to pay attention to several important aspects.
Classification of cables and wires is carried out by:
● conductor material - copper or aluminium● insulation material - PVC plastic or halogen-free polymer● the number of conductor cores● cross-section of the wire - indicated in mm²● the number of layers of insulation● the structure of the conductor - single-core or multicore● degree of flammability
Cables with the following characteristics are most often used for standard laying of power cable networks in the house:
● NYM-J - non-combustible round cable with triple PVC insulation, copper single core, from 2 to 5 cores, cross-section 1.5-6 mm² (10-16 AWG)● H05VV-F - flexible round cable with PVC insulation, multicore copper conductor, from 2 to 4 cores, cross-section 1.5-2.5 mm² (14-16 AWG). Recommended for flexible movable joints.

Illustration

Recommendations for calculating the cross-section of the conductor depending on the current are given in the article Voltage drop on long lines
Air conditioners can partially replace gas heating in the off-season, when the efficiency of this type of heating is maximum. And additionally perform the function of maintaining a comfortable temperature in the rooms during the summer heat.
Twisted-pair cables are usually used to run information network lines (computer networks, data exchange between devices). Depending on the specifics of the signal and the conditions of use, a shielded or unshielded cable may be used (UTP, FTP, SFTP).

Illustration

Conductive security systems and other low-current lines usually use a multicore signal cable with a number of cores from 4 to 10 and a cross-section from 0.2 to 0.8 mm².

Illustration

To better understand the use of different types of cables, the table shows the most typical examples:

    • Cable type

    • Cross section

    • Application

    • Cable type

    • Cable type

    • Cross section

    • Cross section

    • Application

    • Application

    • NYM-J

    • from 1.5 mm²

    • Lighting control

    • Cable type

    • NYM-J

    • Cross section

    • from 1.5 mm²

    • Application

    • Lighting control

    • NYM-J

    • from 2.5 mm²

    • Sockets, power equipment

    • Cable type

    • NYM-J

    • Cross section

    • from 2.5 mm²

    • Application

    • Sockets, power equipment

    • NYM-J

    • from 4 mm²

    • Electric stoves, boilers, electric heating devices

    • Cable type

    • NYM-J

    • Cross section

    • from 4 mm²

    • Application

    • Electric stoves, boilers, electric heating devices

    • Cat5e Ethernet cable

    • from 0.5 mm²

    • i3-CAN, RS-485 buses, 1-wire sensors, analog sensors, switches

    • Cable type

    • Cat5e Ethernet cable

    • Cross section

    • from 0.5 mm²

    • Application

    • i3-CAN, RS-485 buses, 1-wire sensors, analog sensors, switches

    • 4-10 Conductor Cable

    • from 0.22 mm²

    • dry contact switches, devices and sensors

    • Cable type

    • 4-10 Conductor Cable

    • Cross section

    • from 0.22 mm²

    • Application

    • dry contact switches, devices and sensors

When choosing a cable, you should provide a margin for the cross-section of the core and the number of cores to increase the number and power of connected devices. This will not significantly affect the total cost of the cable network, but will greatly simplify its expansion in the future.

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