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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:
● H05VVY2-F - flat cable with double PVC insulation, multi-core middle conductor, 2 or 3 cores, cross section 1.5-2.5 mm²● 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.
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).
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.
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
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