Decryption (marking) of cables and wires

Decoding (marking) Cables and wires of Russian production

Decoding (marking) abbreviations used for symbols of power cables with PVC (vinyl) and rubber insulation (according to GOST 16442-80, T16.71-277-98, TU 16.K71-335-2004)

A - (first letter) Aluminum lived if there is no letter - copper lived.
AC - aluminum lived and lead shell.
AA - aluminum lived and aluminum shell.
B - armor of two steel tapes with anti-corrosion coating.
BN - the same, but with a non-combustible protective layer (not supporting combustion).
B - without a pillow.
B - (first (in the absence of a) letter) PVC isolation.
B - (second (in the absence of a) letter) PVC shell.
G - at the beginning of the designation - this is a cable for mining workings, at the end of the designation - no protective layer over armor or shell ("naked").
M - Water-proof tapes for sealing a metal screen (at the end of the designation).
2g - alumopolymer tape over the sealed screen.
Shv - protective layer in the form of a discharged hose (shell) from PVC.
SP - protective layer in the form of a discharged hose (shell) from polyethylene.
The SPS is a protective layer of a proposed hose from self-turning polyethylene.
K - armor from round galvanized steel wires, on top of which the protective layer is imposed. If it is at the beginning of the notation, the control cable.
C - lead shell.
O - separate shells over each phase.
P - rubber insulation.
HP - rubber insulation and shell of rubber, not supporting combustion.
P - insulation or shell of thermoplastic polyethylene.
PS - insulation or shell from self-refining not supporting combustion of polyethylene.
PV - insulation of vulcanized polyethylene.
BBG - profiled steel ribbon armor.
NG - not supporting burning.
LS - Low Smoke - low smoke and gas release.
Kg - flexible cable.

Cable with BPI paper impregnated with insulation (according to GOST 18410-73):

A - (first letter) Aluminum lived, with its absence - the default copper lived. If in the mid-notation after the symbol of the vein material, then the aluminum sheath.
B - armor from flat steel ribbons (after the symbol of the shell material).
AB is aluminum armor.
Sat - (first or second (after a) letter) lead armor.
C - Lead shell material.
Oh - separately zavidenty lived.
P - armor from flat steel galvanized wires.
K - armor from round steel galvanized wires.
B is a paper insulation with a depleted impregnation (at the end of the designation) through a dash.
B - without a pillow.
L - as part of a pillow additional 1 lavsan tape.
2l - as part of the pillow, an additional double lavsan tape.
N is a non-combustible outer layer. Put after the book symbol.
Shv - outer layer in the form of a discharged hose (shell) from polyvinyl chloride.
SP - Outer layer in the form of a discharged hose (shell) from polyethylene.
SCVPG is an outer layer from the discharged hose from low flammability polyvinyl chloride.
(OH) - cables with single-robes (at the end of the designation).
U is a paper insulation with an increased heating temperature (at the end of the designation).
C - paper isolation impregnated with the unscrewing composition. Put ahead of the designation.

Control cable (according to GOST 1508-78):

A - (first letter) Aluminum lived, with its absence - the default copper lived.
B - (second (in the absence of a) letter) PVC isolation.
B - (third (in the absence of a) letter) PVC shell.
P - insulation from polyethylene.
PS - Isolation from self-turning polyethylene.
G is the lack of a protective layer ("naked").
P - rubber insulation.
K - (first or second (after a) letter) - control cable.
KG KG - flexible cable.
F - insulation from fluoroplastic.
E - at the beginning of the designation - power cable for special mine conditions, in the middle or at the end of the designation - the cable shielded.

Suspended wires:

A - aluminum naked wire.
Aux - aluminum-steel (the word "staleluminum" is used more often) naked wire.
SIP - self-supporting insulated wire.
NG - not supporting combustion.

Power, installation wires and cords connecting:

A - aluminum, the absence in the brand of the wire letter A means that the current-carrying veins from copper.
P (or w) - the second letter, denotes the wire (or cord).
P - rubber insulation.
B is insulation from PVC.
P - polyethylene insulation.
N - Isolation from niphelite rubber.
The number of lived and the section indicate as follows: put a dash; Record number live; put a sign of multiplication; Record cross-section of the vein.
In the brands of wires and cords there may be other letters characterizing other elements of the design:
D - double wire.
O - braid.
T - for laying in pipes.
P - flat with a dividing base.
G - flexible.

Mounting wires:

M - Mounting wire (put at the beginning of the notation).
G is a multi-breeding vein (the absence of a letter indicates that one-robes).
W - isolation from polyamide silk.
C isolation film.
B polyvinyl chloride isolation.
K - Crona insulation.
L - lacquered.
C - winding and braid of fiberglass.
D - double braid.
O - braid from polyamide silk.
E - shielded.
ME - enamelled.

Decryption (marking) of some special abbreviations:

CFV - cables for transmission systems in the vinyl sheath.
KPSVV - Cables Fire alarm, with vinyl insulation, in vinyl shell.
CPSWEV - fire alarm cables, with vinyl insulation, with screen, in vinyl sheath.
PNSV - heating wire, steel lived, vinyl shell.
PV-1, PV-3 - wire with vinyl isolation. 1, 3 - class flexibility class.
PVS - wire in the vinyl sheath connecting.
ShVVP - cord with vinyl insulation, in vinyl shell, flat.
PUNP - wire universal flat.
PugNP - Wire universal flat flexible.

Rashifrovka (marking) Cables and wires of overseas production

Power cable:
N - denotes that the cable is made according to the German standard VDE (Verband Deutscher Elektrotechniker - Union of Germanic Electrical Engineering).
Y is insulation from PVC.
H - the absence of halogens in PVC isolation (harmful organic compounds).
M - mounting cable.
C - the presence of a copper screen.
RG - Availability.

FROR - Italian production cable, has specific notation according to the Italian standard CEI UNEL 35011:

F - CORDA FLESSIBILE - Flexible lived.
R - POLIVINILCLUDO - PVC - PVC isolation
O - Anime Riunite Per Cavo Rotondo - Round, not flat cable.
R - POLIVINILCLUDO - PVC - PVC shell.

Control cable:

Y - PVC isolation.
SL - control cable.
Li - a stranded conductor is made according to the German standard VDE (see Higher).

Cable halogen flame resistant:

N - Made in the German standard VDE (see).
HX is insulation of stitched rubber.
C - copper screen.
Fe 180 - In case of fire, the integrity of isolation, when using a cable without a fastening system, is saved for 180 minutes.
E 90 - In case of fire, the operability of the cable when laying together with the fixing system is saved for 90 minutes.

Mounting wires:

H is a harmonized wire (HAR approval).
N - compliance with the National Standard.
05 - Nonyl stress 300/500 V.
07 - Rated voltage 450/750 V.
V - PVC insulation.
K - Flexible lived for stationary installation.

Cables with stitched polyethylene insulation:

N - Made according to the German standard VDE (see).
Y - PVC insulation.
2y - polyethylene insulation.
2x - insulation of stitched polyethylene.
S - copper screen.
(F) - longitudinal sealing.
(FL) - longitudinal and transverse sealing.
E - three-core cable.
R - armor from round steel wires.

How to decipher the brand of cable?

Take for example a very common cable: AVVG (OH) -0.66 sq. 4x35 and we will analyze it marking.

4x35 - This cable has 4 veins, 35 square meters. Each. Number lived in most cable groups from 1 to 5. But in the control, for example, from 4 to 37. Each lived has a cross section. The cable has a range of sections from 1.5 to 800 square meters. mm. For low-voltage cable.

0.66 kV - voltage. W. this cable It is 660 V. Cables are low-voltage (0.38 -1 kV), on average (6-35kV) and high (110-500kV) voltage.

(OH) - Execution - Single Laminer. This means that there lived monolithic, solidized. In the event that there is no "OH" in the brand, this means that by default, that the execution of the multi-level (MP) or stranded (MN).

M is flexible or unarmed.

Vinyl. Sheath from polyvinyl chloride (PVC) plastic.

Vinyl. Insulation from polyvinyl chloride (PVC) plastic.

A - aluminum. Aluminum conductive lived.

All letter marking starts from the vein. If there is a letter A, then the conductive lived - aluminum. If the letter A is absent, then the conductive lived is made of copper.

Depending on the use group, the following characters may occur in cable labeling.

Avvg- P. Flat, insulated veins are laid in parallel in the same plane.

AVVGZ. With filling, filling from a rubber mixture.

AVVGng-Ls. NG-non-combustible, PVC plastic reduced flammability. Ls - "Low Sking" (reduced chimping), PVC reduced fire hazard.

ABBBSHV

B - armor from steel tapes

Schling protective from PVC plastic.

vinyl. Insulation from polyvinyl chloride (PVC) plastic.

ASB2LG, ASCL, CSB.

C - lead shell.

2l - two lavasan ribbons

G - naked. Protective cover from two steel galvanized tapes.

K is a protective cover from round steel galvanized wires.

C is a paper isolation impregnated with the unspecified composition.

K - control

E - screen common aluminum foil over twisted lived

APVBBSP.

P - insulation of silaneal polyethylene.

p is the outer sheath of polyethylene.

Ap venture2g.

u - reinforced polyethylene sheath

2g - "Double sealing", insulation of stitched polyethylene with an aluminum ribbon over the sealed screen.

Kg - flexible cable.

Decoding wire marking.

Now consider the question of how to decipher the labeling of the wires. The wires as well as cables are labeled letters, after which the numbers record the number and the cross-sectional area of \u200b\u200bthe conductive livers. With the designation of the wire adopted the following structure. The center put the letter n, denoting the wire. In front of the letters of Pows, a letter A standing, denoting that the wire is made of aluminum conductive livers; If the letters are not, the conductive veins are made of copper.

Following the letter n stands the letter characterizing the material from which the wire isolation is insulated:

P - rubber insulation,

B - PVC (polyvinyl chloride) isolation

P - polyethylene insulation

If the wire has a braid from cotton yarn, covered with varnish, then this is indicated by the letter L, and if the yarn is impregnated with the anti-nipple composition, then the letter in the brand is lowered. The letter L is in the last place in the designation of the brand of the wire.

Wires for electric stamps

PVs have digital indices 1; 2; 3 and 4. These numbers indicate the degree of flexibility of wires. The higher the topics are more flexible.

The wires for air power transmission lines are decoded as follows:

SIP - self-supporting insulated wire. Insulation from light stabilized stitched polyethylene.

SIP-1 - with uninsulated neutral

SIP-2 - with neutral isolated

SIP-4 - with an isolated conduction in cross section.

A - Uninsulated wire twisted from aluminum wire

AC - Uninsulated wire consisting of steel core and aluminum wire

Absolute all cable-conducting products has its own labeling, which shows certain characteristics and constructive features One or another cable or wire. In order to properly select the necessary cable or wire from a fairly wide range of products, it is necessary to know what one or another marking (type) means. In this article, we give the decoding of the most popular brands electric wires and cables as well as features marking cables and wires When they are laying and connecting in electrical installations and other objects.

Marking (type) of the cable has letters and numeric values. The letter marking of the cable (wires) reflects the structural features of this product, indicates the material from which one or another structural part of the product is made, as well as the presence or absence of certain elements (properties). We give the decoding of letters used in the labeling of the most popular cable-conducting products.

Decoding letter marking cables

The first letter "A" in the cable marking indicates that the veins of this cable aluminum, the absence of this letter shows that the veins are copper. If there are two first letters "AA" in the cable labeling, it means that in addition to aluminum lived, there is an aluminum shell in the cable design. The letters "AU" in marking shows that the sheath of the aluminum cable is made of lead.

If the second letter in the brand of cable "K" (for the copper cable - the first letter), then this cable is the control.

The second and third letter "B" (for the copper cable - the first and second letter) indicates that the insulation material lived cable and cable shells - polyvinyl chloride.

The next letter that can occur in the labeling of the cable - "b". This letter shows that armored cable - has a protective cover. If one letter "b" costs, the protective cover of the cable is made by a double layer of steel profiled tapes that have corrosion protection. If the marking has the form of "BB", then the cable armor is applied directly on the protective cover of the cable, without a special pillow, which protects the cable from damage to armor tapes. The presence of the letter "K" at the end of the cable labeling indicates that the armored layer of the cable is made round steel wire.

"G" at the end of the labeling of the cable says that the cable does not have a protective cover (armor), that is, he is naked. The small letter "g" at the end of the letter marking indicates that the shielding layer of the cable is sealed with a special tape.

If at the end of the cable is a combination of "Shv", then the cable sheath is a pressed polyvinyl chloride hose.

The combination of the "NG" letters at the end of the cable marking indicates that this cable does not support combustion, the letter "P" indicates that the cable is flat.

The presence of a protective screen in the cable design shows the letter "E" at the end of the cable marking.

In addition, various Latin letters can occur at the end of the cable marking, we give their decoding:

• HF - Cable insulation does not contain halogen;
• TX is a low level of toxicity of gases released during combustion;
• Ls - low level of alumination of smoke when combustion;
• FR - fire-resistant shell.

Decrypion of literal marking of wires and cords

The first letter "A", as well as the labeling of cables, shows that the conductors of the wires are aluminum, with its absence - the veins of the copper wires.

The next letter in marking (for the copper wire is the first) indicates the wire or cord - the marking "P" and "sh", respectively.

The third letter (for the copper wire of the second) shows the material from which the wire isolation is made:

• "B" - polyvinyl chloride;
• "P" - rubber;
• "H" - from nurtite rubber;
• "P" - polyethylene;

Also in the labeling of wires often meet the following letters:

• "P" - flat wire;
• "G" - the wire is flexible;
• "C" - wire connecting.

For the PV brand, the degree of flexibility is indicated by the digit in the marking. The PV-1 wire has single-run veins (cross-section of up to 16 square meters), that is, it is hard. Wires PV-2, PV-3, PV-4 are flexible wires, numbers 2, 3 and 4 in these marking shows the degree of flexibility of the wire: the higher the value, the more flexible wire.

Numeric values \u200b\u200bin the labeling of cable-conductor products show the number of conductive livers in the cable (wire), as well. If a single section lived in the cable, and one lived another section, then its cross section, as well as the number of such lives, is indicated after the "+" sign, for example, VG - 3x4 + 1x2.5 - the cable has three veins with a cross section of 4 kV. MM and one living section of 2.5 square meters. mm.

Examples of labeling of cables and wires

AVVGng-3x2,5 - three-core cable with aluminum veins cross section of 2.5 kV. mm, the insulation of it lived and the upper sheath is made of polyvinyl chloride, the cable is naked, that is, does not have a protective cover, does not spread the burning.

VBBSH-3x4 - three-core cable with copper centers cross section of 4 square meters. mm, the insulation cover is made of polyvinl chloride, has a protective armor in the form of two steel profiled tapes, there is no protective cushion between the armor and the protective cover of the cable, the cable has an outer protective cover from the pressed polyvinyl chloride hose.

ACB 3x16 - three-core cable with aluminum veins section of 16 square meters. MM, has a lead shell and protective armor from profiled steel tapes of anti-corrosion tapes, between the armor and the protective cover of the cable there is a pillow that protects it from damage to armor.

PV-3. - Flexible (stranded) wire, which has PVC isolation.

PPV - Flat monolithic wire having single-layer PVC isolation.

There are also some types of wires that have special abbreviations, for example:

Sip - self-supporting insulated wire.

PVS. - Flexible copper connecting wire in PVC insulation and shell.

PUNP - Wire universal flat. PugNP - flexible wire, universal flat.

Color marking of cables and wires

There is generally accepted color marking lived wires and cableswhich provides the convenience of mounting and further operation of the mounted cable-conductive lines.

According to PUE, in three-phase electrical network Phase cable veins are marked with yellow, green and red colors - the phases "A", "B" and "C", respectively. Zero (neutral) lived, as a rule, has a blue color. The protective (grounding) lived has a green-yellow color, sometimes (according to old standards) is black color.

Decryption (marking) of cables and wires

1. Decoding (marking) Cables and wires of Russian production

Decryption (marking) abbreviations used for designations power cables with PVC (vinyl) and rubber insulation (according to GOST 16442-80, T16.71-277-98, TU 16.K71-335-2004)

A - (first letter) Aluminum lived if there is no letter - copper lived.
AC - aluminum lived and lead shell.
AA - aluminum lived and aluminum shell.
B - armor of two steel tapes with anti-corrosion coating.
BN - the same, but with a non-combustible protective layer (not supporting combustion).
B - without a pillow.
B - (first (in the absence of a) letter) PVC isolation.
B - (second (in the absence of a) letter) PVC shell.
G - at the beginning of the designation - this is a cable for mining workings, at the end of the designation - no protective layer over armor or shell ("naked").
M - Water-proof tapes for sealing a metal screen (at the end of the designation).
2g - alumopolymer tape over the sealed screen.
Shv - protective layer in the form of a discharged hose (shell) from PVC.
SP - protective layer in the form of a discharged hose (shell) from polyethylene.
The SPS is a protective layer of a proposed hose from self-turning polyethylene.
K - armor from round galvanized steel wires, on top of which the protective layer is imposed. If it is at the beginning of the notation, the control cable.
C - lead shell.
O - separate shells over each phase.
P - rubber insulation.
HP - rubber insulation and shell of rubber, not supporting combustion.
P - insulation or shell of thermoplastic polyethylene.
PS - insulation or shell from self-refining not supporting combustion of polyethylene.
PV - insulation of vulcanized polyethylene.
BBG - profiled steel ribbon armor.
NG - not supporting burning.
LS - Low Smoke - low smoke and gas release.
Kg - flexible cable.

Cable with bppi - paper impregnated with insulation (according to GOST 18410-73):

A - (first letter) Aluminum lived, with its absence - the default copper lived. If in the mid-notation after the symbol of the vein material, then the aluminum sheath.
B - armor from flat steel ribbons (after the symbol of the shell material).
AB is aluminum armor.
Sat - (first or second (after a) letter) lead armor.
C - Lead shell material.
Oh - separately zavidenty lived.
P - armor from flat steel galvanized wires.
K - armor from round steel galvanized wires.
B is a paper insulation with a depleted impregnation (at the end of the designation) through a dash.
B - without a pillow.
L - as part of a pillow additional 1 lavsan tape.
2l - as part of the pillow, an additional double lavsan tape.

N is a non-combustible outer layer. Put after the book symbol.
Shv - outer layer in the form of a discharged hose (shell) from polyvinyl chloride.
SP - Outer layer in the form of a discharged hose (shell) from polyethylene.
SCVPG is an outer layer from the discharged hose from low flammability polyvinyl chloride.
(OH) - cables with single-robes (at the end of the designation).
U is a paper insulation with an increased heating temperature (at the end of the designation).
C - paper isolation impregnated with the unscrewing composition. Put ahead of the designation.

Control cable (according to GOST 1508-78):

A - (first letter) Aluminum lived, with its absence - the default copper lived.
B - (second (in the absence of a) letter) PVC isolation.
B - (third (in the absence of a) letter) PVC shell.
P - insulation from polyethylene.
PS - Isolation from self-turning polyethylene.
G is the lack of a protective layer ("naked").
P - rubber insulation.
K - (first or second (after a) letter) - control cable.
KG KG - flexible cable.
F - insulation from fluoroplastic.
E - at the beginning of the designation - power cable for special mine conditions, in the middle or at the end of the designation - the cable shielded.

Suspended wires:

A - aluminum naked wire.
Aux - aluminum-steel (the word "staleluminum" is used more often) naked wire.
SIP - self-supporting insulated wire.
NG - not supporting combustion.

Power, installation wires and cords connecting:

A - aluminum, the absence in the brand of the wire letter A means that the current-carrying veins from copper.
P (or w) - the second letter, denotes the wire (or cord).
P - rubber insulation.
B is insulation from PVC.
P - polyethylene insulation.
N - Isolation from niphelite rubber.
The number of lived and the section indicate as follows: put a dash; Record number live; put a sign of multiplication; Record cross-section of the veins.
In the brands of wires and cords there may be other letters characterizing other elements of the design:
D - double wire.
O - braid.
T - for laying in pipes.
P - flat with a dividing base.
G - flexible.

Mounting wires:

M - Mounting wire (put at the beginning of the notation).
G is a multi-breeding vein (the absence of a letter indicates that one-robes).
W - isolation from polyamide silk.
C isolation film.
B polyvinyl chloride isolation.
K - Crona insulation.
L - lacquered.
C - winding and braid of fiberglass.
D - double braid.
O - braid from polyamide silk.
E - shielded.
ME - enamelled.

Decryption (marking) of some special abbreviations:

CFV - cables for transmission systems in the vinyl sheath.
KPSVV - fire alarm cables, with vinyl insulation, in vinyl sheath.
CPSWEV - fire alarm cables, with vinyl insulation, with screen, in vinyl sheath.
PNSV - heating wire, steel lived, vinyl shell.
PV-1, PV-3 - wire with vinyl isolation. 1, 3 - class flexibility class.
PVS - wire in the vinyl sheath connecting.
ShVVP - cord with vinyl insulation, in vinyl shell, flat.
PUNP - wire universal flat.
PugNP - Wire universal flat flexible.

2. Decoding (marking) Cables and Wires of foreign production

Power cable:

N - denotes that the cable is made according to the German standard VDE (Verband Deutscher Elektrotechniker - Union of Germanic Electrical Engineering).
Y is insulation from PVC.
H is the absence of halogen (harmful organic compounds) in PVC isolation.
M - mounting cable.
C - the presence of a copper screen.
RG - Availability.

FROR - Italian production cable, has specific notation according to the Italian standard CEI UNEL 35011:

F - CORDA FLESSIBILE - Flexible lived.
R - POLIVINILCLUDO - PVC - PVC isolation
O - Anime Riunite Per Cavo Rotondo - Round, not flat cable.
R - POLIVINILCLUDO - PVC - PVC shell.

Control cable:

Y - PVC isolation.
SL - control cable.
Li - a stranded conductor is made according to the German standard VDE (see Higher).

Cable halogen flame resistant:

N - Made in the German standard VDE (see).
HX is insulation of stitched rubber.
C - copper screen.
Fe 180 - In case of fire, the integrity of isolation, when using a cable without a fastening system, is saved for 180 minutes.
E 90 - In case of fire, the operability of the cable when laying together with the fixing system is saved for 90 minutes.

Mounting wires:

H is a harmonized wire (HAR approval).
N - compliance with the National Standard.
05 - Nonyl stress 300/500 V.
07 - Rated voltage 450/750 V.
V - PVC insulation.
K - Flexible lived for stationary installation.

Cables with stitched polyethylene insulation:

N - Made according to the German standard VDE (see).
Y - PVC insulation.
2y - polyethylene insulation.
2x - insulation of stitched polyethylene.
S - copper screen.
(F) - longitudinal sealing.
(FL) - longitudinal and transverse sealing.
E - three-core cable.
R - armor from round steel wires.

How to decipher the brand of cable?

Take for example a very common cable: AVVG (OH) -0.66 sq. 4x35 and we will analyze it marking.

4x35 - This cable has 4 veins, 35 square meters. Each. Number lived in most cable groups from 1 to 5. But in the control, for example, from 4 to 37. Each lived has a cross section. The cable has a range of sections from 1.5 to 800 square meters. mm. For low-voltage cable.

0.66 kV - voltage. In this cable, it is 660 V. Cables are low-voltage (0.38 -1 kV), on average (6-35kV) and high (110-500kV) voltage.

(OH) - Execution - Single Laminer. This means that there lived monolithic, solidized. In the event that there is no "OH" in the brand, this means that by default, that the execution of the multi-level (MP) or stranded (MN).

M is flexible or unarmed.
Vinyl. Sheath from polyvinyl chloride (PVC) plastic.
Vinyl. Insulation from polyvinyl chloride (PVC) plastic.
A - aluminum. Aluminum conductive lived.

All letter marking starts from the vein. If there is a letter A, then the conductive lived - aluminum. If the letter A is absent, then the conductive lived is made of copper.

Depending on the use group, the following characters may occur in cable labeling.

Avvg- P. Flat, insulated veins are laid in parallel in the same plane.
- AVVGZ. With filling, filling from a rubber mixture.
- AVVGN-LS. NG-non-combustible, PVC plastic reduced flammability. Ls - "Low Sking" (reduced chimping), PVC reduced fire hazard.

B - armor from steel tapes
Schling protective from PVC plastic.
Vinyl. Insulation from polyvinyl chloride (PVC) plastic.

ASB2LG, ASKL, CSB:

C - lead shell.
2l - two lavasan ribbons
G - naked. Protective cover from two steel galvanized tapes.
K is a protective cover from round steel galvanized wires.
C is a paper isolation impregnated with the unspecified composition.

K - control
E - screen common aluminum foil over twisted lived

ApvBSP:

P - insulation of silaneal polyethylene.
P is the outer sheath of polyethylene.

U - reinforced polyethylene sheath
2g - "Double sealing", insulation of stitched polyethylene with an aluminum ribbon over the sealed screen.

Kg - flexible cable.

Decoding wire marking.

Now consider the question of how to decipher the labeling of the wires. The wires as well as cables are labeled letters, after which the numbers record the number and the cross-sectional area of \u200b\u200bthe conductive livers. With the designation of the wire adopted the following structure. The center put the letter n, denoting the wire. In front of the letters of Pows, a letter A standing, denoting that the wire is made of aluminum conductive livers; If the letters are not, the conductive veins are made of copper.

Following the letter n stands the letter characterizing the material from which the wire isolation is insulated:

P - rubber insulation,
B - PVC (polyvinyl chloride) isolation
P - polyethylene insulation

If the wire has a braid from cotton yarn, covered with varnish, then this is indicated by the letter L, and if the yarn is impregnated with the anti-nipple composition, then the letter in the brand is lowered. The letter L is in the last place in the designation of the brand of the wire.

Wires for the electric installations of the PV brand have digital indices 1; 2; 3 and 4. These numbers indicate the degree of flexibility of wires. The higher the topics are more flexible.

Wires for Air LP decoded as follows:

SIP - self-supporting insulated wire. Insulation from light stabilized stitched polyethylene.
SIP-1 - with uninsulated neutral
SIP-2 - with neutral isolated
SIP-4 - with an isolated conduction in cross section.

A - Uninsulated wire twisted from aluminum wire
AC - Uninsulated wire consisting of steel core and aluminum wire

Decoding (marking) abbreviations used for symbols of power cables with PVC (vinyl) and rubber insulation (according to GOST 16442-80, T16.71-277-98, TU 16.K71-335-2004)

A - (first letter) Aluminum lived if there is no letter - copper lived.
AC - aluminum lived and lead shell.
AA - aluminum lived and aluminum shell.
B - armor of two steel tapes with anti-corrosion coating.
BN - the same, but with a non-combustible protective layer (not supporting combustion).
B - without a pillow.
B - (first (in the absence of a) letter) PVC isolation.
B - (second (in the absence of a) letter) PVC shell.
G - at the beginning of the designation - this is a cable for mining workings, at the end of the designation - no protective layer over armor or shell ("naked").
M - Water-proof tapes for sealing a metal screen (at the end of the designation).
2g - alumopolymer tape over the sealed screen.
Shv - protective layer in the form of a discharged hose (shell) from PVC.
SP - protective layer in the form of a discharged hose (shell) from polyethylene.
The SPS is a protective layer of a proposed hose from self-turning polyethylene.
K - armor from round galvanized steel wires, on top of which the protective layer is imposed. If it is at the beginning of the notation, the control cable.
C - lead shell.
O - separate shells over each phase.
P - rubber insulation.
HP - rubber insulation and shell of rubber, not supporting combustion.
P - insulation or shell of thermoplastic polyethylene.
PS - insulation or shell from self-refining not supporting combustion of polyethylene.
PV - insulation of vulcanized polyethylene.
BBG - profiled steel ribbon armor.
NG - not supporting burning.
LS - Low Smoke - low smoke and gas release.
Kg - flexible cable.

Cable with BPI paper impregnated with insulation (according to GOST 18410-73)

A - (first letter) Aluminum lived, with its absence - the default copper lived. If in the mid-notation after the symbol of the vein material, then the aluminum sheath.
B - armor from flat steel ribbons (after the symbol of the shell material).
AB is aluminum armor.
Sat - (first or second (after a) letter) lead armor.
C - Lead shell material.
Oh - separately zavidenty lived.
P - armor from flat steel galvanized wires.
K - armor from round steel galvanized wires.
B is a paper insulation with a depleted impregnation (at the end of the designation) through a dash.
B - without a pillow.
L - as part of a pillow additional 1 lavsan tape.
2l - as part of the pillow, an additional double lavsan tape.

N is a non-combustible outer layer. Put after the book symbol.
Shv - outer layer in the form of a discharged hose (shell) from polyvinyl chloride.
SP - Outer layer in the form of a discharged hose (shell) from polyethylene.
SCVPG is an outer layer from the discharged hose from low flammability polyvinyl chloride.
(OH) - cables with single-robes (at the end of the designation).
U is a paper insulation with an increased heating temperature (at the end of the designation).
C - paper isolation impregnated with the unscrewing composition. Put ahead of the designation.

Control cable (according to GOST 1508-78)

A - (first letter) Aluminum lived, with its absence - the default copper lived.
B - (second (in the absence of a) letter) PVC isolation.
B - (third (in the absence of a) letter) PVC shell.
P - insulation from polyethylene.
PS - Isolation from self-turning polyethylene.
G is the lack of a protective layer ("naked").
P - rubber insulation.
K - (first or second (after a) letter) - control cable.
KG KG - flexible cable.
F - insulation from fluoroplastic.
E - at the beginning of the designation - power cable for special mine conditions, in the middle or at the end of the designation - the cable shielded.

Suspended wires

A - aluminum naked wire.
Aux - aluminum-steel (the word "staleluminum" is used more often) naked wire.
SIP - self-supporting insulated wire.
NG - not supporting combustion.

Power, installation wires and cords connecting

The brand of wires and the cord is recorded in the form of a combination of letters and numbers:

A - aluminum, the absence in the brand of the wire letter A means that the current-carrying veins from copper.
P (or w) - the second letter, denotes the wire (or cord).
P - rubber insulation.
B is insulation from PVC.
P - polyethylene insulation.
N - Isolation from niphelite rubber.
The number of lived and the section indicate as follows: put a dash; Record number live; put a sign of multiplication; Record cross-section of the vein.
In the brands of wires and cords there may be other letters characterizing other elements of the design:
D - double wire.
O - braid.
T - for laying in pipes.
P - flat with a dividing base.
G - flexible.

Mounting wires

M - Mounting wire (put at the beginning of the notation).
G is a multi-breeding vein (the absence of a letter indicates that one-robes).
W - isolation from polyamide silk.
C isolation film.
B polyvinyl chloride isolation.
K - Crona insulation.
L - lacquered.
C - winding and braid of fiberglass.
D - double braid.
O - braid from polyamide silk.
E - shielded.
ME - enamelled.

Decryption (marking) of some special abbreviations

CFV - cables for transmission systems in the vinyl sheath.
KPSVV - fire alarm cables, with vinyl insulation, in vinyl sheath.
CPSWEV - fire alarm cables, with vinyl insulation, with screen, in vinyl sheath.
PNSV - heating wire, steel lived, vinyl shell.
PV-1, PV-3 - wire with vinyl isolation. 1, 3 - class flexibility class.
PVS - wire in the vinyl sheath connecting.
ShVVP - cord with vinyl insulation, in vinyl shell, flat.
PUNP - wire universal flat.
PugNP - Wire universal flat flexible.

Decryption (marking) Cables and wires of foreign production

Power cable

N - denotes that the cable is made according to the German standard VDE (Verband Deutscher Elektrotechniker - Union of Germanic Electrical Engineering).
Y is insulation from PVC.
H is the absence of halogen (harmful organic compounds) in PVC isolation.
M - mounting cable.
C - the presence of a copper screen.
RG - Availability.

FROR - Italian-made cable, has specific notation according to the Italian standard CEI UNEL 35011

F - CORDA FLESSIBILE - Flexible lived.
R - POLIVINILCLUDO - PVC - PVC isolation
O - Anime Riunite Per Cavo Rotondo - Round, not flat cable.
R - POLIVINILCLUDO - PVC - PVC shell.

Control cable

Y - PVC isolation.
SL - control cable.
Li - a stranded conductor is made according to the German standard VDE (see Higher).

Cable halogen flame resistant

N - Made in the German standard VDE (see).
HX is insulation of stitched rubber.
C - copper screen.
Fe 180 - In case of fire, the integrity of isolation, when using a cable without a fastening system, is saved for 180 minutes.
E 90 - In case of fire, the operability of the cable when laying together with the fixing system is saved for 90 minutes.

Mounting wires

H is a harmonized wire (HAR approval).
N - compliance with the National Standard.
05 - Nonyl stress 300/500 V.
07 - Rated voltage 450/750 V.
V - PVC insulation.
K - Flexible lived for stationary installation.

Cables with stitched polyethylene insulation

N - Made according to the German standard VDE (see).
Y - PVC insulation.
2y - polyethylene insulation.
2x - insulation of stitched polyethylene.
S - copper screen.
(F) - longitudinal sealing.
(FL) - longitudinal and transverse sealing.
E - three-core cable.
R - armor from round steel wires.

How to decipher the brand of cable

Take for example a very common cable: AVVG (OH) -0.66 sq. 4x35 and we will analyze it marking.

4x35 - This cable has 4 veins, 35 square meters. Each. Number lived in most cable groups from 1 to 5. But in the control, for example, from 4 to 37. Each lived has a cross section. The cable has a range of sections from 1.5 to 800 square meters. mm. For low-voltage cable.

0.66 kV - voltage. In this cable, it is 660 V. Cables are low-voltage (0.38 -1 kV), on average (6-35kV) and high (110-500kV) voltage.

(OH) - Execution - Single Laminer. This means that there lived monolithic, solidized. In the event that there is no "OH" in the brand, this means that by default, that the execution of the multi-level (MP) or stranded (MN).

M is flexible or unarmed.

Vinyl. Sheath from polyvinyl chloride (PVC) plastic.

Vinyl. Insulation from polyvinyl chloride (PVC) plastic.

A - aluminum. Aluminum conductive lived.

All letter marking starts from the vein. If there is a letter A, then the conductive lived - aluminum. If the letter A is absent, then the conductive lived is made of copper.

Depending on the use group, the following characters may occur in cable labeling.

Avvg- P. Flat, insulated veins are laid in parallel in the same plane.

AVVGZ. With filling, filling from a rubber mixture.

AVVGng-Ls. NG-non-combustible, PVC plastic reduced flammability. Ls - "Low Sking" (reduced chimping), PVC reduced fire hazard.

ABBBSHV

B - armor from steel tapes

Schling protective from PVC plastic.

Vinyl. Insulation from polyvinyl chloride (PVC) plastic.

ASB2LG, ASCL, CSB.

C - lead shell.

2l - two lavasan ribbons

G - naked. Protective cover from two steel galvanized tapes.

K is a protective cover from round steel galvanized wires.

C is a paper isolation impregnated with the unspecified composition.

AKVVGE.

K - control

E - screen common aluminum foil over twisted lived

APVBBSP.

P - insulation of silaneal polyethylene.

P is the outer sheath of polyethylene.

Ap venture2g.

U - reinforced polyethylene sheath

2g - "Double sealing", insulation of stitched polyethylene with an aluminum ribbon over the sealed screen.

Kg - flexible cable.

Deciphering labeling wires

Now consider the question of how to decipher the labeling of the wires. The wires as well as cables are labeled letters, after which the numbers record the number and the cross-sectional area of \u200b\u200bthe conductive livers. With the designation of the wire adopted the following structure. The center put the letter n, denoting the wire. In front of the letters of Pows, a letter A standing, denoting that the wire is made of aluminum conductive livers; If the letters are not, the conductive veins are made of copper.

Following the letter n stands the letter characterizing the material from which the wire isolation is insulated:

P - rubber insulation,

B - PVC (polyvinyl chloride) isolation

P - polyethylene insulation

If the wire has a braid from cotton yarn, covered with varnish, then this is indicated by the letter L, and if the yarn is impregnated with the anti-nipple composition, then the letter in the brand is lowered. The letter L is in the last place in the designation of the brand of the wire.

Wires for electric stamps

PVs have digital indices 1; 2; 3 and 4. These numbers indicate the degree of flexibility of wires. The higher the topics are more flexible.

The wires for air power transmission lines are decoded as follows:

SIP - self-supporting insulated wire. Insulation from light stabilized stitched polyethylene.

SIP-1 - with uninsulated neutral

SIP-2 - with neutral isolated

SIP-4 - with an isolated conduction in cross section.

A - Uninsulated wire twisted from aluminum wire

AC - Uninsulated wire consisting of steel core and aluminum wire

Marking and Wire Characteristics and Cable

Lived - In general, a separate conductor.

The wire - one uninsulated and one and more isolated lived, on top of which, depending on the conditions of gasket and operation, there may be a non-metallic shell, winding or braid with fibrous materials or wire.

Installation wire - wire for low voltage electrical switchgear.

Cable - One or more isolated veins (conductors), concluded, as a rule, into a metal or non-metallic shell, on top of which, depending on the laying and operation conditions, there may be appropriate protective covers in which armor can enter.

Cord - Two or more isolated flexible and particularly flexible sections to 1.5 mm 2, twisted or laid parallel, on top of which, depending on operating conditions, non-metallic shells and protective coatings can be applied. The cord is designed to connect moving devices (for example, electric household appliances) To the electrical network.

Wires and cables differ in the number of lived, cross section and nominal working voltage. Wires are made with insulation to voltage 380, 660 and 10,000 V (SIP) AC, cables - on any voltage. Insulated wire conductive lived in the shell of rubber, polyvinyl chloride or viniplast. For protection from mechanical damage and exposure to the external environment, the insulation of some brands of wires is covered outside cotton braid impregnated with anti-nipple. Wires intended for laying in places where there is an increased risk of their mechanical damage, protected by an additional braid from steel galvanized wire.

Nasoles are called wires that have no protective or insulating coatings on top of the conductive lives. The bare wires of the brands of PSO, PS, A, AG and others are used, as a rule, for air lines of power transmission.

Isolated called wires whose conductive veins are covered with insulation, and over isolation there is a braid of cotton yarn or sheath from rubber, plastics or metal tape. Isolated wires are divided into protected and unprotected.

Protected is isolated insulated wires having over electrical insulation shell, intended for sealing and protection against external climatic influences. These include the wires of the brands of Apr., PRVD, APP, etc.

Unprotected is called insulated wires that do not have over electrical insulation of the protective shell (Wires of Staros of Apr, PRD, ADPR, ADPV, PPV, etc.).

Marking

The brand of the wire (cable) is a lettering designation that characterizes the conductive vein material, isolation, the degree of flexibility and the design of the protective covers.

In the marking of domestic wires, cables and cords russian manufacturers The following notation is used:

The 1st letter characterizes the conductive vein material:

aluminum - a,

copper - the letter is absent.

2nd Letter Indicates:

P - wire.

The 3rd letter denotes insulation material:

In - shell from polyvinyl chloride plastic

P - Polyethylene sheath,

P - rubber shell,

N - Sheath Nairitova.

In the brands of wires and cords, letters may also be present, characterizing other elements of the design: O - braid,

T - for laying in pipes,

P - flat,

F - metal folded shell,

G - increased flexibility,

And - elevated protective properties,

Rhineletter from cotton yarn impregnated with anti-naile composition, etc.

For example: PV is a copper wire with polyvinyl chloride insulation.

Modern wire brands and cable

MAPs MPMA, MPMU, MPMU and MPME are used for inter-block and intraburgical compounds electrical devices. Conducting veins are made of copper, tinned tin wire. MPMU and MPMU wire conductors are reinforced with tinned metal wire. The wires of MPM and MPMU are single-core, MPMU and MPME brands - single, two- and three-core. Wire sections: MPM - 0.12-1.5 mm 2; MPU - 0.12-0.5 mm 2; MPMUE and MPME - 1.43-3.34 mm 2. All wires have low-pressure polyethylene insulation in the form of a solid layer. The wires of MPMU and MPME brands additionally contain a screen in the form of braid from tinned copper wires. The wires are used in the AC circuits with voltage up to 250 V with a frequency of up to 5000 Hz, or in the constant current circuits by voltage up to 350 V. The electrical resistance of the insulation of the wires under normal conditions is at least 105 mΩ / m. The use of wires is permissible at temperatures. ambient in the range -50 ... + 85 "S.

The installation wires PV-1, PV-3, PV-4 are designed to supply power to electrical appliances and equipment, as well as for stationary laying of lighting power grid. PV-1 is produced with single-wire conductive copper vest, PV-3, PV-4 - with twisted copper wire veins. The wire section is 0.5-10 mm 2. Wires have painted PVC insulation. Applied in alternating current circuits with a rated voltage of no more than 450 V with a frequency of 400 Hz and in DC circuits with a voltage to 1000 V. The operating temperature is limited to the range -50 ... + 70 ° C.

The PVA installation wire is designed to connect electrical appliances and equipment. The number of veins can be equal to 2,3,4 or 5. Conducting veins from a soft copper wire has a section of 0.75-2.5 mm 2. Produced with twisted veins in PVC insulation and the same shell.

It is used in power grids with a rated voltage, not exceeding 380 V. The wire is designed for the maximum voltage 4000 in the 50 Hz frequency applied for 1 min. Operating temperature - in the range -40 ... + 70 ° C.

The PUNP installation wire is designed for laying stationary lighting networks. The number of veins can be equal to 2.3 or 4. The veins have a cross section of 1.0-6.0 mm 2. Conductive veins made of soft copper wire has plastic isolation in PVC shell. It is used in power grids with a rated voltage of no more than 250 V with a frequency of 50 Hz. The wire is designed for the maximum voltage of 1500 V with a frequency of 50 Hz for 1 min.

The power cables of the VG and WEGG brand are designed to transmit electrical energy in stationary alternating current settings. The veins are made of soft, copper wire. The number of custody can be 1-4. The cross section of conductive lived: 1.5-35.0 mm 2. Cables are produced with an insulating sheath of polyvinyl chloride (PVC) plastic. WDGG cables have reduced flammability. Applied in networks with a rated voltage of not more than 660 V and a frequency of 50 Hz.

NYM brand power cable is designed for industrial and domestic stationary installation indoors and outdoors. The wires of the cable have a single-wire copper living area with a cross section of 1.5-4.0 mm 2, isolated PVC plastic. The outer sheath that does not support combustion is also made of PVC plastic light gray. The inner intermediate shell consists of a rubber mixture. The two-core cable has wires black and blue flowers, three-core - black, blue and yellow-green, four-core - black, blue, brown and yellow-green, pentogular - black, blue, brown, black and yellow-green.

Connecting cables MKS and MABS brands are designed for inter-block and intrabable connections in electrical devices. The amount of veins may be equal to 2, 3, 5, 7, 10, or 14. The cross section of conductive livers: 0.35-0.75 mm 2. MAKES cable has a screen of tinned copper wires. Applied at a voltage of up to 500 V and frequency up to 400 Hz. The use of the cable is permissible at ambient temperature in the range -50 ... + 70 "C.

Control cables MAROD KVBBSHV, KVVVBG are designed to connect electrical devices and equipment. The number of the veins can be from 10 to 37. The cross-conductive conductive veins from the copper wire: 1.5-6.0 mm 2. Available in plastic insulation and PVC plastic shell and have, in addition, an aluminum foil screen. Designed for the maximum variable voltage 660 V with a frequency of up to 100 Hz, as well as on a constant voltage up to 1000 V.

Control cables brands of KVVG, KVVGE, KVVGNG and KVVGEng are designed to connect electrical appliances and equipment. The number of lived may be 4-37. The cross section of the conductive lived from copper wire: 1.0-6.0 mm 2. Produced with an insulating sheath of PVC plastic. Cables KVVGE and KVVGEng under the shell have an aluminum foil screen. Cables KVVGNG and KVVGEng have reduced flammability. Designed for the maximum variable voltage 660 V with a frequency of up to 100 Hz, as well as on a constant voltage up to 1000 V.

The ShVVP cord is designed to connect electrical appliances and equipment to the power grid. The number of veins can be equal to 2 or 3. The cord is produced with twisted veins, in pv-insulation and the same shell. Conductive liveli-copper wire has a cross section of 0.5 or 0.75 mm 2. It is used with a rated voltage that does not exceed 380 V. The cord is designed for the maximum voltage 4000 in the 50 Hz frequency applied for 1 min.

The SCSO cord is intended for connecting electric stoves, electrical units, electrocamines and other electric heating devices. The number of veins can be 2 or 3. Wires of this cord have twisted copper veins with a cross section of 0.5-1.5 mm 2, polyethylene insulation, PVC sheath and a native braid. It is used with a nominal voltage of 250 V. The cord is designed for the maximum voltage of 2000 V with a frequency of 50 Hz, applied for 1 min.

Wire connection

Connection, branch and termination of wires should be carried out using crimping tips, welding, soldering or clamps (bolted or screw connections). At the same time, in places of compounds, it is necessary to provide a margin of the length of the conductors to be able to re-compound. These places should be available for inspection and repair. All connections and branches of wires must be performed in the connecting boxes. Conductors in places of compounds should not test mechanical stresses.

In the case of the use of boxes, a multi-layer laying of wires and cables is allowed. In this case, the total area of \u200b\u200bthe cross sections of the wires and cables, including insulation, should not exceed 40% of the cross-lift area of \u200b\u200bthe box.

Connections lived among themselves and connecting them to electrical installation devices should have the necessary mechanical strength, low electrical resistance and save these properties at all time.

Physical I. chemical properties Aluminum complicate the execution of a reliable connection. Aluminum has increased fluidity and high oxidation compared to copper. At the same time, a toxconducting oxide film is formed, which creates a large transient resistance on contact surfaces. This film must be thoroughly removed from contact surfaces before performing the connection and take measures against the re-occurrence. All this creates certain difficulties when connecting aluminum wires.

Copper conductors also forms oxidized film, but in contrast to aluminum it is easily removed and slightly affects the quality of the electrical connection.

A large difference in the coefficients of thermal linear expansion of aluminum compared to other metals also leads to a violation of contact. Given this property, aluminum wires can not be contaminated in copper tips.

With long-term operation under pressure, aluminum acquires the fluidity property, thereby disrupting the electrical contact. Therefore, mechanical contact connections of aluminum wires cannot be shifted, and during operation it is required to periodically tighten the threaded connection of the contact. The contacts of aluminum veins with other open-air metals are susceptible to atmospheric influences.

Under the influence of moisture on the contact surfaces, a water film is formed with the properties of the electrolyte, as a result of electrolysis on metal, sinks are formed. The intensity of the formation of shells increases when passing through the contact site electric current. Especially unfavorable in this respect for the compound of aluminum with copper-based copper and alloys. Therefore, such contacts must be protected from moisture from entering or covering third metal - tin or solder.