Types of wires and cablesElectricity, numerous electrical appliances and mechanisms for various purposes in all spheres of human activity and... wires, wires, wires! Wires and network cables today are a whole industry. They differ in brand, purpose, conductivity and technical characteristics.


  • 1 Alpha-numeric marking of PVS
  • 2 PVA wire, construction
  • 3 Where is PVA wire used
  • 4 Characteristics and advantages of the PVA cable
  • 5 Interpretation of PVS marking
  • 6 PUGNP cable: purpose, marking
  • 7 All about PUGSP

Alpha-numeric marking of PVS

Today, the range of these products is on the market in a large range. The choice of the buyer - products with different construction of veins and insulation coatings. All cables and wires are labeled, by which you can determine the technical characteristics of these products and select the desired product for the desired purpose.

PVA wire, construction

PVA - connecting wire in vinyl insulation. It consists of two or more copper, stranded and insulated from each other stranded, dressed in a protective sheath of polyvinyl chloride. Depending on the brand, the PVA cable has a different cross-sectional shape and a different set and structure of conductive wires. The number of copper (or aluminum) lived from 2 to 5, the section in the range from 0.5 to 25 mm2, the shell - rubber (rubberized) or traditional PVC. The color of the insulating sheath is PVA white, black or gray. The insulation colors lived according to the standard: brown, black and red-phase, blue - zero, yellow-green color - ground.

Where is PVA wire used

Copper stranded PVA cable It is used to transmit low signal voltage to low power devices. In everyday life, it is used to connect to the network of almost all electrical appliances and machines, providing voltage up to 220/380 V, in the frequency interval up to 50 Hz. It can be used for internal wiring of residential premises and for the work of specialized equipment in the garden.

PVA is widely used at some stages in industrial production. Due to the fact that the PVA cable is well subjected to deformation and withstands the maximum possible number of kinks, it is very It is widely used for the manufacture of extension cords (carriers) of different lengths, as well as during installation of outdoor lighting and light advertising.

PVA wire with aluminum core designed for voltage transmission in urban networks of electric lighting. Such wires produce electrical equipment and wiring in modern residential high-rise buildings and at factories, where high power of electric current is required: large metallurgical plants, enterprises of various specializations, power plants ...

Characteristics and advantages of the PVA cable

The main characteristics of PVA:

  • Cable characteristicEnvironment temperature from -40 to +40 degrees
  • The maximum temperature of the heating conductor +70 degrees in the working phase
  • The uptime of the wire is 5000 hours, the service life is at least 6 years
  • PVA resistant to corrosion, mold, fungus
  • Non-toxic, non-flammable
  • The length of the building cable is 50 meters
  • Operating electrical resistance in the range of 1 km is approximately 270 Ohms
  • At rated voltage, resistance to variable strain in bending is approximately 30,000 to 60,000 cycles.

PVS with copper conductors has several advantages:

  • Strength
  • Plastic
  • High coefficient of resistance
  • High conductivity
  • High percentage of thermal expansion
  • Anticorrosion
  • Easy repair
  • Compatible with starting regulators and insulators

Features PVA with aluminum conductors:

  • PVA aluminum conductors do not heat up, and this has a positive effect on the electric current rate and its power.
  • In contrast to copper, aluminum filaments undergo oxidation by oxides, which prolongs their service life and makes it possible to use them in chemical production, in the production of rolled metal
  • PVS cable with aluminum core is more economical, as it weighs an order of magnitude less than copper. In this regard, it has found its use on power transmission masts, as it allows to stretch lines without additional supports.
  • Aluminum wire is cheaper than copper, it is flexible and quite durable. Resource use of the wire is at least 5 years

Interpretation of PVS marking

All conductors offered on the market of electrical equipment, have a marking certificate and must comply with the system of Gosstandart of Russia. Distinguish this product by the abbreviation PVA, which represents wire specifications, purpose and scope of its use.

Power cable with PVC, rubber insulation:

  • Letter cable valuesKG - flexible
  • А - 1st letter: aluminum conductor, in its absence - copper conductor
  • B - polyvinyl chloride insulation
  • B - second letter: polyvinyl chloride shell
  • G - cover is absent, "naked"
  • ng - does not burn
  • LS - Low Smoke - gas and smoke
  • Bb - steel belt cover, armored
  • Shv - external PVC hose

Cable (BPI) with impregnated paper insulation:

  • А - 1st letter: aluminum conductor, in its absence - copper conductor
  • AB - aluminum armor
  • Sat - the first or second letter: the armor of lead
  • l - tape from dacron
  • 2l - double polyester tape
  • G - cover is absent, "naked"

Telephone cable:

  • Cable applicationT - telephone cable
  • P - polyethylene insulation
  • p - belt insulation: polyamide, polyethylene, polyvinyl chloride or polyethylene terephthalate tapes
  • E - screen
  • P - polyethylene sheath
  • Z - hydrophobic filler
  • Shp - outer cover - polyethylene hose
  • С - station cable

Suspended wires:

  • A - bare aluminum wire
  • AC - steel-bare wire
  • CIP - self-supporting, insulated wire

Control cable:

  • K - first or second letter: control cable (except KG)
  • E - screen

Special way to decrypt some cable types:

  • KSPV - in a vinyl cover for system transfer
  • KPSVV - cables with vinyl insulation and vinyl sheath for fire alarm
  • KPSVEV - with vinyl isolation, with the screen and in vinyl cover for the fire alarm system
  • PNSV - heating wire with a steel core in a vinyl sheath
  • PV-1, PV-3 - with vinyl isolation of the 1st, 3rd class of flexibility of a vein
  • PVA - a connecting wire in a vinyl sheath
  • ШВВП - flat cord with vinyl insulation and vinyl sheath
  • PUNP - Universal Flat
  • PUGNP - universal flat flexible wire

Cable typesPower cable:

  • N - agreed with VDE
  • Y - polyvinyl chloride
  • H - halogen-free polyvinyl chloride
  • M - cable for installation
  • C - copper screen
  • RG - armor

Twisted pair cable:

  • U - unfoiled: non-folded, unshielded
  • F - foiled: foiled, shielded
  • S - screened: shielded with copper wires
  • SF - overall woven foil screen
  • S-S - screen of each pair: foil and woven screen
  • TP - twisted pair - twisted pair

Telephone cable, fire alarm cable:

  • J - installation installation cable
  • Y - polyvinyl chloride
  • (St) - foil screen

Fire resistanthalogen freecable:

  • N - agreed with VDE
  • HX - rubber stitched
  • C - copper screen
  • FE 180 - cable properties are stored for a certain time (180 minutes) in an open flame and under voltage

Installation wires:

  • H - Harmonized Wire (HAR Approval)
  • N - corresponds to the national standard
  • 05 - voltage 300/500 V, nominal
  • 07 - voltage 450/750 V, nominal
  • V - polyvinyl chloride insulation
  • K - flexible core for fixed installation

Cable (Italy) has a specific marking according to CEI UNEL 35011:

  • F - corda flessibile - lived flexible
  • R - polivinilclorudo - PVC - polyvinyl chloride insulation
  • O - anime riunite per cavo rotondo - non-flat round cable
  • R - polivinilclorudo - PVC - polyvinyl chloride sheath

Cablesfrom the sewed polyethylenewith insulation:

  • N - agreed with VDE
  • Y - polyvinyl chloride
  • 2Y - polyethylene
  • 2X - crosslinked polyethylene
  • S - copper screen
  • (F) - sealing longitudinal
  • (FL) - sealing longitudinal, transverse
  • E - cable of 3 wires
  • R - armored from round steel threads
  • J - there is a yellow-green vein
  • O - there is no yellow-green vein

Control cable:

  • Y - polyvinyl chloride
  • SL - control cable
  • Li - VDE Conductor, Stranded

PUGNP cable: purpose, marking

How to spell the literal valuesPUGNP wire designed for laying of lighting networks indoors, as well as for supplying electrical current to electrical appliances and small industrial mechanisms and aggregates, where the required rated power is 250 V AC current. According to the system of the State Standard of the Russian Federation, PuGNP wire manufactured according to TU 16K13-020-93 and has a number of basic characteristics and its own labeling.


  • the letter "A" is absent at the beginning, it means a wire with copper conductors;
  • the first letter "P" -provod;
  • letters "UN" -universal appointment;
  • letter "G" - flexible;
  • The last letter “P” is flat.

PUGNP is a wire with twisted copper conductors with sheath and PVC plastic insulation, flat. Since this type of wire is intended mainly for domestic use, TU are installed with the restriction of the necessary requirements for the parameters of design and electrical conductivity.

This wire has 2 or 3 conductors with a cross section of from 0, 35 to 6.0 mm2 and each of the conductors must consist of at least 7 conductive wires. PVC sheath color is predominantly white or natural, radial thickness is 0.5 mm. The color of the insulation of all the wires must be different. Mandatory is blue for "zero" and yellow-green for "earth." The minimum insulation thickness is 0.3 mm.

All about PUGSP

Cable informationIGSL wire is twisted copper wire - tow. is he performed in two colors and comes in frame sizes. UGSF is used for power grids under illumination, as well as for connecting household appliances and electrical outlets with a voltage of 250 V AC at 50 Hz. The wire is made of three wires and double PVC insulation. The building length (coil) of the wire is 50 meters, the cross-section is 2.5 mm.

Multiwire conductors (2 or 3 in a wire) of round shape, copper or aluminum, are arranged parallel to each other. Insulation has a standard color and a thickness of 0.3 mm.

The shell is PUGSP from polyvinyl chloride plasticate and has a radial thickness of 0.5 mm.

Technical parameters of the CUGP:

  • The cable is designed to operate in a temperature range from -15 to +50 degrees.
  • In a single arrangement and laying do not burn
  • The electrical resistance is 27.1 ohms in the control area with a length of 1 km, a cross section of 1 mm2 and at a temperature of +20 degrees
  • The length of the wire construction-5 meters