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Cable characteristics table

Characteristics of VVG cable
Characteristics of the PSV cable

Application:

The cable is intended for the transmission and distribution of electrical energy in stationary installations at a rated alternating voltage of 0.6 or 1 kV, frequency 50 Hz.

Application:

The wire is intended for installation and permanent connection of electrical equipment, household machines and similar applications to networks with rated alternating voltage up to 380/660 V.

Cable structure:

– current-carrying conductor – copper single-wire or multi-wire with a cross-section from 1.5 to 35.0 mm².

– core insulation – polyvinyl chloride plastic compound (PVC)

– shell – PVC plastic compound

Possible options:

It is possible to produce cables of the VVGng brand with a sheath of PVC plastic compound of reduced flammability and brand VVGnd with a sheath of PVC plastic compound of reduced flammability with reduced smoke and gas emissions (LS).

Wire structure:

– current-carrying conductor – stranded copper with cross-section: 0.75; 1.0; 1.5; 2.5; 4.0; 6.0; 10.0; 16.0 mm².

– core insulation – polyvinyl chloride (PVC). Number of cores: 2; 3; 4 or 5. Insulated cores are twisted.

– belt insulation – synthetic tape (belt insulation only in PVSmp brand wires)

– shell – PVC plastic compound. Shell color: white, gray or black.

Basic technical and operational cable characteristics
Basic technical and operational PSV cable characteristics
Operating temperaturefrom -50°С to +50°СOperating temperaturefrom -25°С to+40°С
Minimum cable laying temperature without preheating Laying and installation temperatureот -15°С до+40°С
Long-term permissible core heating temperature+70°СLong-term permissible core heating temperature+70°С

Minimum bending radius when laying: — single-core cable

9 cable diametersMinimum bending radius when laying6 cable diameters
Minimum bending radius when laying: — multi-core cable7,5  cable diameters
Minimum service life30 yearsMinimum service life6 years
VVG
PSV
Wire brandEstimated outer diameter of the wire, mmWire weight, kg/kmWire brandEstimated outer diameter of the wire, mmWire weight, kg/km
VVG 2х1,57,676PVS 2х0,756,256,2
VVG 2х2,58,4100PVS 2х16,460,7
VVG 2х410,4146PVS 2х1,57,484,1
VVG 2х611,4192PVS 2х2,59,2133,8
VVG 2х1013,7279PVS2х412220
VVG 2х1615,6447PVS 2х612,6274,6
VVG 3х1,58112PVS 2х1015402,3
VVG 3х2,59,4148PVS 2х1619,9683,5
VVG3х410,9217PVS 3х0,756,666,8
VVG 3х612–PVS 3х16,872,6
VVG 3х1014,5419PVS 3х1,58,1105,6
VVG 3х1616,5–PVS 3х2,510167,5
VVG 2х25 81820,6818PVS 3х411,2264
VVG 2х3522,81077PVS 3х613,3340,7
VVG 3х1,58116PVS 3х1015,9503,9
VVG 3х2,59,4152PVS 3х1621,1853,1
VVG 3х410,9220PVS 4х0,757,280,6
VVG 3х612286PVS 4х17,691,3
AVVG 3х16+1х1018,1379PVS 4х1,59132,4
VVG 3х1014,5418PVS 4х2,510,9204,4
VVG 3х1616,5653PVS 4х414321
mVVG 3х2521,91007PVS 4х614,6420,3
VVG 3х35 100724,61338PVS 4х1017,5625,3
VVG 3х2,5+1х1,510,2179PVS 4х1623,31058,4
VVG 3х4,0+1х2,511,9258PVS 5х0,758101,6
VVG 3х6+1х413,1348PVS 5х18,3110,8
VVG 3х10+1х615,4497PVS 5х1,510165,8
VVG 3х16+1х1018,1759PVS 5х2,512,1255,6
VVG 3х25+1х1623,31201PVS 5х413,1396
VVG 3х35+1х1625,41533PVS 5х616515,4
VVG 4х1,59,3142PVS 5х1019,6776
VVG 4х2,510,2189PVS 5х16261332,8
VVG 4х411,9277   
VVG4х613,1366   
VVG 4х1015,9537   
VVG 4х1618,5842   
VVG 4х2524,51324   
VVG 4х3527,11732   
VVG 5х1,510,1173   
VVG 5х2,511,1233   
VVG 5х412,9344   
VVG 5х614,3457   
VVG 5х1017,4690   
VVG 5х1620,41060   
VVG 5х25271632   
VVG 5х3530,72147   

Selection of cross-section of wires

Electrical wiring must meet the requirements of safety, reliability and economy. Therefore, it is important to correctly calculate the length and cross-section of the wires necessary for the installation of electrical wiring.

The length of the wire is calculated according to the assembly diagram. To do this, on the diagram, measure the distances between adjacent locations of shields, plug sockets, switches, junction boxes, etc. Then, using the scale in which the diagram is drawn, calculate the length of the wire segments; add at least 100 mm to the length of each segment (taking into account the need to connect wires). The length of the wire can also be calculated by measuring directly on shields, panels, walls, ceilings, etc. the segments of the lines along which the wires must be laid.

The cross-section of the wire is calculated based on the voltage loss and the permissible long-term current load. If the calculated cross-sections turn out to be different, then the value of the larger cross-section is taken as the final result.

Loss of voltage is caused by a voltage drop in the wires connecting the current source to the electrical receiver. It should not exceed 2-5% of the nominal voltage of the power supply. The cross-section of the wires is calculated according to the voltage loss when designing electrical networks, from which electrical receivers of industrial enterprises, transport, large residential and public buildings, etc. are charged.

When designing small electrical installations, for example, electrical installations of individual rooms, self-made devices, etc., the voltage loss in the wires can be neglected, since it is very small.

To calculate the cross-section of the wires for the permissible long-term current load, it is necessary to know the nominal current that must pass through the designed electrical wiring. Knowing the nominal current, the cross-section of the wire is found according to the table.

Table of the dependence of the current strength on the cross section of the conductor

Cross-section of the current-conducting wire, mm²Current, for wires and cables with copper cores, ACurrent, for wires and cables with aluminum cores, A
Single-coreTwo-wireThree-wireSingle-coreTwo-wire Three-wire
airearthairearthairairearthairearthair
1,52333192719–––––
2,530442738252334212919
441553849353142293827
650705060423855384632
10801057090556080557042
16100135901157575105709060
25140175115150951051359011575
3517021014018012013016010514090
50215265175225145165205135175110
70270320215275180210245165210140
95325385260330220250295200255170
120385445300385260295340230295200
150440505350435305340390270335235
185510570405500350390440310385270
240605––––465––– 

Example: the nominal current is 50A; The cross-section of the copper wire should be 6 mm². The nominal current and permissible long-term current loads indicated in the table may not coincide in value. In this case, the cross-section is found by the nearest higher nominal current permissible continuous current load.

Example: the nominal current of 74A must pass through the wires; the nearest maximum allowable long-term current load is 80, 75A (see table); therefore, a wire with a cross-section of 10-16 mm2 (depending on the laying method) is required if the wires are copper, or with a cross-section of 10-25 mm² (depending on the laying method) if the wires are aluminum.

Table of values of degrees of protection IP
(dust and moisture protection)

Possible values of the IP code

 IP x0IP x1IP x2IP x3IP x4IP x5IP x6IP x7IP x8
IP 0xIP 00        
IP 1xIP 10IP 11IP 12      
IP 2xIP 20IP 21IP 22IP 23     
IP 3xIP 30IP 31IP 32IP 33IP 34    
IP 4xIP 40IP 41IP 42IP 43IP 44    
IP 5xIP 50   IP 54IP 55   
IP 6xIP 60    IP 65IP 66IP 67IP 68

Schemes of test methods for degrees of protection (IPxx) against penetration of foreign solid bodies, dust and water

(in accordance with the standard of the International Electrotechnical Commission IEC 598 and European norms EN 60598)

Protection against foreign solid bodies, dust
Number IP(хХ)Type of protectionScheme of the test method
0No protection 
1Protection against solid bodies >=50 mm in sizeA ball with a diameter of 50 mm and a standard test probe
2Protection against solid bodies >=12.5 mm in sizeA ball with a diameter of 12.5 mm and a standard test probe
3Protection against solid bodies >=2.5 mm in sizestandard test probe (or wire with a diameter of 2.5 mm)
4Protection against solid bodies >=1.0 mm in sizestandard test probe (or wire with a diameter of 1.0 mm)
5Partial protection from dustDust chamber (talc circulation)
6Full protection from dustDust chamber (talc circulation)
Water protection
Number IP(хХ)Type of protectionScheme of the test method
0No protection 
1Protection against drops of condensate falling verticallyIrrigation system in the chamber of artificial rain
2Protection against drops falling at an angle of up to 15°Irrigation system in the chamber of artificial rain
3Protection against drops falling at an angle of up to 60°A sprinkler system with a rotating outlet pipe
4Protection against splashes falling at any angleA sprinkler system with a rotating outlet pipe
6Protection against dynamic effects of water flows (sea wave)Hydraulic pump with a hose and a nozzle with a diameter of 12.5 mm, water consumption 100 l/min
7Protection against water ingress when diving to a certain depth and timeImmersion in a bath with a layer of water 1 m
8Protection against water with unlimited immersion time to a certain depth 

Stuffing boxes

Designed for inserting wires and cables into electrical switchboard equipment in order to protect conductors from mechanical damage and protect the assembly itself from the penetration of dust and moisture at the entry point. The oil seal consists of a body, a seal, a seal nut, a gasket and a locking nut. The seal and gasket are made of neoprene. The body, seal nut and locking nut are made of nylon. The oil seal is installed using a pipe (gas) wrench. Operating temperature range from –40 to +80 °C.

Table of characteristics of stuffing box

TypeNameDimensions, mmCable diameter, mm
BDD1D2LL1L2
Stuffing box PGL IP68 gray RAL 7035PGL 11241882634755—8
PGL 13.52720102935866—10
PGL 16302212334010610—12
PGL 2135,6281638,54510713—16
PGL 2946372550509718—25
PGL 36604632665612822—32
PGL 4265544073639833—40
PGL 48705944776312834—44
Stuffing box PGL  IP68 gray RAL 7035PG 7191272131852,5—7
PG 92215102433854—9
PG 112418112636755—11
PG 13,527201229387,56,55—12
PG 163022133342966—13
PG 2135,5281938,5511179—19
PG 294636255052106,520—25
PG 366047326665137,523—32
PG 4264,55438726612832—38
PG 48705945786613838—45
Stuffing box MG  IP68 blackMG 1217,51281937654,6—8
MG 1622151024461376—10
MG 2026,6201429521389—14
MG 2532,5251835,55714813—8
MG 32413225456214818—25
MG 4049403253,570191024—32
MG 506150426680211030—42
MG 6374635281,589231140—52