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E
verified supplier
Elektro Sychra
H
verified supplier
Hurtownia Elektryczna ELEKTROMEGA s.c. B

Multiple socket Bemko B04-NA5GU5M Plastic Thermoplastic Untreated Matt White

€4.92+VAT
PLN 22.67
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 10
  • Core cross section [mm²]: 1
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GS1M Plastic Thermoplastic Untreated Matt White

€3.43+VAT
PLN 15.80
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B05-NB5GU1M Plastic Thermoplastic Untreated Matt White

€3.16+VAT
PLN 14.56
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GSW1M Plastic Thermoplastic Untreated Matt White

€3.97+VAT
PLN 18.29
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B05-NB4GW3M Plastic Thermoplastic Untreated Matt White

€4.73+VAT
PLN 21.80
  • Number of socket outlets with earth pin: 4
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB3GSW1M Plastic Thermoplastic Untreated Matt White

€3.37+VAT
PLN 15.53
  • Number of socket outlets with protective contact (SCHUKO): 3
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B05-NB3GU3M Plastic Thermoplastic Untreated Matt White

€3.91+VAT
PLN 18.01
  • Number of socket outlets with earth pin: 3
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B04-NA4GB1M Plastic Thermoplastic Untreated Matt White

€2.04+VAT
PLN 9.38
  • Number of Euro socket outlets: 4
  • Nominal current [A]: 10
  • Core cross section [mm²]: 1
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GS5M Plastic Thermoplastic Untreated Matt White

€6.43+VAT
PLN 29.60
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GS3M Plastic Thermoplastic Untreated Matt White

€4.78+VAT
PLN 22.01
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No
P
verified supplier
P.P.P.H.U. SAGA MIROSŁAW WIECKI

Multiple socket Bemko B04-NA5GU5M Plastic Thermoplastic Untreated Matt White

€5.33+VAT
PLN 24.56
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 10
  • Core cross section [mm²]: 1
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GS1M Plastic Thermoplastic Untreated Matt White

€3.72+VAT
PLN 17.12
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B05-NB5GU1M Plastic Thermoplastic Untreated Matt White

€3.43+VAT
PLN 15.78
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GSW1M Plastic Thermoplastic Untreated Matt White

€4.30+VAT
PLN 19.81
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B05-NB4GW3M Plastic Thermoplastic Untreated Matt White

€5.13+VAT
PLN 23.62
  • Number of socket outlets with earth pin: 4
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB3GSW1M Plastic Thermoplastic Untreated Matt White

€3.65+VAT
PLN 16.82
  • Number of socket outlets with protective contact (SCHUKO): 3
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B05-NB3GU3M Plastic Thermoplastic Untreated Matt White

€4.24+VAT
PLN 19.51
  • Number of socket outlets with earth pin: 3
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B04-NA4GB1M Plastic Thermoplastic Untreated Matt White

€2.21+VAT
PLN 10.17
  • Number of Euro socket outlets: 4
  • Nominal current [A]: 10
  • Core cross section [mm²]: 1
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GS5M Plastic Thermoplastic Untreated Matt White

€6.96+VAT
PLN 32.07
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B06-NB5GS3M Plastic Thermoplastic Untreated Matt White

€5.18+VAT
PLN 23.85
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B04-NA5GU5M Plastic Thermoplastic Untreated Matt White

€4.27+VAT
PLN 19.65
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 10
  • Core cross section [mm²]: 1
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Patch cord copper (twisted pair) Legrand 051867 S/FTP 6A (IEC) RJ45 8(8) RJ45 8(8) Green

€6.25+VAT
PLN 28.77
  • AWG-size: 26
  • Length [m]: 2
  • Locking lever: Yes
  • Halogen free: Yes
  • Fire retardant version: Yes
  • Oil resistant (according to EN 60811-404): No

Crimp splices for aluminium conductor Ergom E12KA-01100100852 Round stranded/sector stranded Aluminium

€1.03+VAT
PLN 4.75
  • Connection as copper bolt: No
  • For pull protected connections: Yes
  • Suitable for Al/St-cables: No
  • Suitable for Aldrey-cables: No
  • Oil stop/centre bar: No

Multiple socket Bemko B06-NB5GS1M Plastic Thermoplastic Untreated Matt White

€2.97+VAT
PLN 13.70
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Patch cord copper (twisted pair) Legrand 051874 U/UTP 6A (IEC) RJ45 8(8) RJ45 8(8) Green

€5.17+VAT
PLN 23.81
  • AWG-size: 24
  • Length [m]: 1
  • Locking lever: Yes
  • Halogen free: Yes
  • Fire retardant version: Yes
  • Oil resistant (according to EN 60811-404): No

Crimp splices for aluminium conductor Ergom E13KC-01030102500 Round stranded/sector stranded Aluminium/copper

€6.92+VAT
PLN 31.85
  • Nominal cross section Cu [mm²]: 70
  • Connection as copper bolt: No
  • For pull protected connections: Yes
  • Suitable for Al/St-cables: No
  • Suitable for Aldrey-cables: No
  • Oil stop/centre bar: Yes

Multiple socket Legrand 50295 Plastic Thermoplastic Untreated Matt Black

€13.44+VAT
PLN 61.91
  • Number of Euro socket outlets: 0
  • Number of cold device socket outlets: 0
  • Number of socket outlets with protective contact (SCHUKO): 0
  • Number of CEE socket outlets: 0
  • Number of other socket outlets: 0
  • Number of socket outlets with earth pin: 4
  • Over voltage protection: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • With on/off switch: Yes

Crimp splices for aluminium conductor Ergom E12KA-01120402402 Round stranded/sector stranded Aluminium Up to 30 kV

€6.65+VAT
PLN 30.64
  • Reduced Al nominal cross section [mm²]: 120
  • Connection as copper bolt: No
  • For pull protected connections: Yes
  • Suitable for Al/St-cables: No
  • Suitable for Aldrey-cables: No
  • Oil stop/centre bar: Yes

Crimp splices for aluminium conductor Ergom E12KA-01120402202 Round stranded/sector stranded Aluminium Up to 30 kV

€6.17+VAT
PLN 28.43
  • Reduced Al nominal cross section [mm²]: 70
  • Connection as copper bolt: No
  • For pull protected connections: Yes
  • Suitable for Al/St-cables: No
  • Suitable for Aldrey-cables: No
  • Oil stop/centre bar: Yes

Multiple socket Bemko B05-NB5GU1M Plastic Thermoplastic Untreated Matt White

€2.74+VAT
PLN 12.62
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Multiple socket Bemko B04-NA5GU5M Plastic Thermoplastic Untreated Matt White

€4.76+VAT
PLN 21.91
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 10
  • Core cross section [mm²]: 1
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Patch cord copper (twisted pair) Legrand 051867 S/FTP 6A (IEC) RJ45 8(8) RJ45 8(8) Green

€6.05+VAT
PLN 27.88
  • AWG-size: 26
  • Length [m]: 2
  • Locking lever: Yes
  • Halogen free: Yes
  • Fire retardant version: Yes
  • Oil resistant (according to EN 60811-404): No

Multiple socket Bemko B06-NB5GS1M Plastic Thermoplastic Untreated Matt White

€3.32+VAT
PLN 15.28
  • Number of socket outlets with protective contact (SCHUKO): 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Patch cord copper (twisted pair) Legrand 051874 U/UTP 6A (IEC) RJ45 8(8) RJ45 8(8) Green

€5.01+VAT
PLN 23.06
  • AWG-size: 24
  • Length [m]: 1
  • Locking lever: Yes
  • Halogen free: Yes
  • Fire retardant version: Yes
  • Oil resistant (according to EN 60811-404): No

Multiple socket Legrand 50295 Plastic Thermoplastic Untreated Matt Black

€13.02+VAT
PLN 59.98
  • Number of Euro socket outlets: 0
  • Number of cold device socket outlets: 0
  • Number of socket outlets with protective contact (SCHUKO): 0
  • Number of CEE socket outlets: 0
  • Number of other socket outlets: 0
  • Number of socket outlets with earth pin: 4
  • Over voltage protection: Yes
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • With on/off switch: Yes

Multiple socket Bemko B05-NB5GU1M Plastic Thermoplastic Untreated Matt White

€3.06+VAT
PLN 14.08
  • Number of socket outlets with earth pin: 5
  • Nominal current [A]: 16
  • Core cross section [mm²]: 1.5
  • RAL-number (similar): 9003
  • With on/off switch: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • Over voltage protection: No
  • With cover lid: No
  • Halogen free: No

Patch cord copper (twisted pair) Legrand 051798 F/UTP 6 RJ45 8(8) Blue Moulded-on

€90.97+VAT
PLN 418.97
  • AWG-size: 26
  • Length [m]: 20
  • Locking lever: Yes
  • Halogen free: Yes
  • Fire retardant version: Yes

Patch cord copper (twisted pair) Legrand 051858 U/UTP 6 RJ45 8(8) RJ45 8(8) Green

€3.03+VAT
PLN 13.94
  • AWG-size: 24
  • Length [m]: 1
  • Locking lever: Yes
  • Halogen free: Yes
  • Fire retardant version: Yes
  • Oil resistant (according to EN 60811-404): No

Multiple socket Legrand 50052 Rectangular Plastic Thermoplastic Untreated Matt

€5.11+VAT
PLN 23.54
  • Number of Euro socket outlets: 0
  • Number of cold device socket outlets: 0
  • Number of socket outlets with protective contact (SCHUKO): 0
  • Number of CEE socket outlets: 0
  • Number of other socket outlets: 0
  • Number of socket outlets with earth pin: 3
  • Over voltage protection: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • With on/off switch: No

Multiple socket Legrand 50509 Rectangular Plastic Thermoplastic Matt Aluminium

€3.62+VAT
PLN 16.69
  • Number of Euro socket outlets: 3
  • Number of cold device socket outlets: 0
  • Number of socket outlets with protective contact (SCHUKO): 3
  • Number of CEE socket outlets: 0
  • Number of other socket outlets: 0
  • Number of socket outlets with earth pin: 3
  • Over voltage protection: No
  • Residual current circuit breaker (RCCB): No
  • Mains filter: No
  • With on/off switch: No
A
verified supplier
Agartha Company s.r.o.
T
verified supplier
TT Partner Artur Krupa
E
verified supplier
EL-MARO KRECZETOWSCY, RATAJCZAK SPÓŁKA JAWNA

Single-socket garden extension cord PO-ST / S / 5,0M / 3X1,5 / H03VV

Starting at
€5.79+VAT
PLN 26.69
  • EAN: 5902273408864
  • Manufacturer: PLASTROL
  • Colour: Black colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length [m]: 1900-01-05 00:00:00

Workshop extension cord PROFESSIONAL LINE PB-PRO / S / 10M / 3X1,5 / H05RR-F KEL

Starting at
€21.35+VAT
PLN 98.35
  • Manufacturer: KEL
  • Colour: Black colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-10 00:00:00
  • Net weight [kg]: 2021-04-13 00:00:00

STANDARD LINE extension cord PB-ST / M / 20M / 3X1 / H05VV-F KEL

Starting at
€19.94+VAT
PLN 91.84
  • Manufacturer: KEL
  • Colour: Black colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-20 00:00:00
  • Net weight [kg]: 2.54

STANDARD LINE extension cord PB-ST / M / 10M / 3X1 / H05VV-F KEL

Starting at
€15.17+VAT
PLN 69.87
  • Manufacturer: KEL
  • Colour: Black colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-10 00:00:00
  • Net weight [kg]: 3.407

STANDARD LINE extension cord PB-ST / S / S / 25M / 3X1,5 / H05VV-F KEL

Starting at
€29.97+VAT
PLN 138.02
  • Manufacturer: KEL
  • Colour: Orange color
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-25 00:00:00
  • Net weight [kg]: 1.87

Single-socket garden extension cord PO-ST / 3M / 3X1 / H03VV

Starting at
€3.30+VAT
PLN 15.21
  • Manufacturer: PLASTROL
  • Colour: White color
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length [m]: 1900-01-03 00:00:00
  • Net weight [kg]: 0.46

STANDARD LINE extension cord PB-ST / S / S / 30M / 3X1,5 / H05VV-F KEL

Starting at
€33.55+VAT
PLN 154.53
  • Manufacturer: KEL
  • Colour: Black colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-30 00:00:00
  • Net weight [kg]: 2021-06-05 00:00:00

Workshop extension cord PROFESSIONAL LINE PB-PRO / S / S / 25M / 3X1.5 / H05RR-F KEL

Starting at
€43.31+VAT
PLN 199.47
  • Manufacturer: KEL
  • Colour: Red colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-25 00:00:00
  • Net weight [kg]: 2021-04-01 00:00:00

Single-socket specialist extension cord PJ-HEAVY / Z / 20M / 3X2.5 / H07BQ

Starting at
€45.47+VAT
PLN 209.44
  • Manufacturer: KEL
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-01-20 00:00:00
  • Net weight [kg]: 3.36
  • Temperature range [oC]: -50 to 90

Workshop extension cord PROFESSIONAL LINE PB-PRO / S / 50M / 3X2.5 / H05RR-F KEL

Starting at
€90.90+VAT
PLN 418.65
  • Manufacturer: KEL
  • Colour: Black colour
  • Voltage [V]: 230
  • Ground: Yes
  • Cable length (m): 1900-02-19 00:00:00
  • Net weight [kg]: 6.925

Cables and wires

The task of cables and wires, regardless of their structure or cross-section, is to provide electricity, control pulses or information. These utilities are an indispensable element of every network and installation, both in the power industry and ICT.

Cables and wires in teleinformatics and power engineering

The basic building block of cables and wires is a conductor capable of the orderly movement of electrons - most often copper, which is the basis for power utilities (although aluminum is also often used here) and ICT. Another type of cable is the optical fiber used for information transmission.

Solutions for ICT

ICT cables and wires belong to one of the three media groups available on the market for signal transmission: coaxial cables, twisted pair cables or optical fibers. In new networks, coaxial cables are practically no longer used, and the ICT network architecture is based on structured cabling in the form of optical fibers and twisted-pair cables.

A coaxial cable rarely used in ICT

Coaxial cable consists of a copper core in plastic insulation, surrounded by a copper shield. The whole thing is inside a plastic outer t-shirt. The specific structure of the concentrator allows it to be used directly at metal objects. The transmission takes place without power loss or external electromagnetic interference of the transmitted signal.

Currently, coaxial cables in ICT have almost completely replaced optical fibers. Concentrator is used in measuring techniques and as an antenna cable.

Copper, twisted pair, shielded and unshielded

Twisted pair is a signal cable used in ICT installations. It is made of eight wires twisted in pairs, where the twist in a pair is usually one coil by 6-10 cm. The twist is different for each pair of cables, which reduces the effects of mutual electromagnetic interference and crosstalk. The cable is also protected against interference from the environment.

There are different braiding technologies and therefore individual twisted pairs may have different twist. The signal cable is most often used in telephone installations and Ethernet networks, with the FTP (unshielded) twisted pair being more popular than the UTP (shielded) twisted pair.

Categories of structured cabling

The division of structured cabling into categories is a way to organize the elements of the ICT system, as well as to ensure backward compatibility with older solutions. The following categories can be distinguished: 1, 2, 3, 5 / 5e, 6, 6A, 7 and 7A. Currently, the category 5 (less and less) and 6 twisted pair are commonly used, while the higher categories are used in the construction of specialized computer networks, e.g. backbone.

Fiber optic cable

Both coaxial cable and twisted pair, together with power cables and cables, belong to a wide group of electrically conductive media. Transmission consists in conducting electrical impulses, while in an optical fiber the signal carrier is a beam of infrared light, which is transmitted through the glass fibers.

Compared to copper media, optical fiber is characterized by much higher capacity, insensitivity to electromagnetic interference and long-distance transmission. However, it is fragile and delicate, and requires expensive network equipment, so it is not used as often as it could due to the quality of the transmission.

Solutions for the power industry

The power industry is primarily cables and copper and aluminum wires, which can be divided into bare and insulated. Bare cables are used in overhead lines, while insulated cables and cables are laid in the ground, under plaster, in plaster and on plaster.

Cable and wire markings

Cables and wires in the power industry are marked in a certain standardized way in order to facilitate identification by installers, and thus ensure the safety of the installation. Markings are placed on the cable insulation in the form of a clear imprint. The first letter of the designation determines the structure of the vein:

  • D - wire;

  • L - line;

  • Lg - flexible line.

When the conductor is made of a material other than copper, the letter A (aluminum) or F (steel) appears before the conductor structure designation. Before marking the material, in turn, the term of the cable sheath may appear, i.e. the letter Y (PVC sheath).

Letters describing the insulation material appear after the letter (s) denoting the core structure:

  • Y - PVC;

  • G - rubber;

  • X - polyethylene.

The next letter refers to the construction of the cable (e.g. d - increased insulation thickness, p - flat cable), and the next letters help to define its purpose (e.g. ak - battery cable, t - plug-in cable). In addition to letter symbols, it is also used on wires designation of the rated voltage.