GENERAL TECHNICAL INFORMATION Contents Basic design elements for insulated wires and cables 185 Common insulation and sheathing materials (polymers) and their use 186 Properties of insulation and sheathing materials of cables and wires 187 Type codes for harmonised insulated wires 188 Type codes for power cables 189 Type codes for telecommunication cables 190 Terms for cables relating to their behaviour in case of fire 191 Core identification 192 Colour codes for insulated wires and power cables according to HD 308 S2 192 Colour codes for installation cables JE-LiYCY and JE-Y(St)Y ... Bd according to VDE 0815 192 Colour code for telecommunications cables according to VDE 0815 193 Colour code for telecommunication cables according to EN 60708 194 Packing 195 Drum capacity 195 Standard delivery drums 196
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GENERAL TECHNICAL INFORMATION
Contents
Basic design elements for insulated wires and cables 185
Common insulation and sheathing materials (polymers) and their use 186
Properties of insulation and sheathing materials of cables and wires 187
Type codes for harmonised insulated wires 188
Type codes for power cables 189
Type codes for telecommunication cables 190
Terms for cables relating to their behaviour in case of fire 191
Core identification 192
Colour codes for insulated wires and power cables according to HD 308 S2 192
Colour codes for installation cables JE-LiYCY and JE-Y(St)Y ... Bd according to VDE 0815 192
Colour code for telecommunications cables according to VDE 0815 193
Colour code for telecommunication cables according to EN 60708 194
Packing 195
Drum capacity 195
Standard delivery drums 196
GENERAL TECHNICAL INFORMATION
Basic design elements for insulated wires and cables
ConductorConsists of one or more metal wires and is used for transportation of electric current.
Round, solid (RE) For small and medium diameter or cross-sections, made of copper (bare or tinned) up to 16 mm2 and of aluminium up to 35 mm2. Used in single- and multi-core cables and wires for fixed installation. Round, stranded (RM) For medium and large cross-sections of copper-conductors from 6 mm2 and aluminium conductors from 25 mm2. Used in single- and multi-core cables and wires for fixed installation.
Round, stranded, compressed (RM) For particularly compact conductors of medium and large cross-section made of copper from 6 mm2 and aluminium from 16 mm2. For use in single- and multi-core cables and wires for fixed installation.
Fine or superfine-wire (F)For all cross-sections of copper-conductors (bare or tinned). Used for flexible cables.
Sector-shaped, solid (SE)For medium and large cross-sections of aluminium conductors from 50 mm2 up to 240 mm2. Used for 3-, 31/2-, 4- and 5-core cables.
Sector-shaped, stranded (SM)For medium and large cross-sections of copper and aluminium conductors from 35 mm2 up to 300 mm2. Used for 3-, 31/2-, 4- and 5-core cables.
Core insulationCovers the conductor and is used for electrical separation from the surroundings. Mainly made of extruded polymers but also of paper, glass or minerals, varnish etc or a combination of several of these materials. Conductor and insulation together form the core.
Inner covering, taping Covers the stranded core consisting of several or many cores and is used for filling the interstices between the stranding-elements, maintaining a round shape of the cable. The inner covering has mostly no electrical function and consists usually either of extruded polymers, of one or more layers of tape or a combination of these elements.
ScreenPrevents electrical influences (electric fields) from reaching elements within the screen or electric fields generated by these elements from penetrating outside by conductance. Consists of metallic tapes (e.g. copper or aluminium), laminated metallic tapes, wires, wire braids or a combination of these elements.
ArmouringUsually arranged over the jacket, the armouring provides mechanical reinforcement of the cable jacket. The armouring protects the interior of the cable from damage which may arise from radial forces (e.g. running over by vehicles or pressure of stones in the cable bed etc.) Under certain circumstances, the armouring can take over or assist the electrical function of the screen. Tapes as well as round or flat wires made of galvanized steel or aluminium are usually used as armouring material. If protection against chewing damage by rodents is merely required, thin, bare steel tapes are usually used. Non-metallic designs as protection against chewing damage by rodents or termites are provided by reinforcing the jacket with HDPE and PP.
Sheath, outer coveringFunctions as the outermost cover of a cable or insulated wire and is used as mechanical protection, as protection against water penetration and as protection against chemical influences. Mostly made of extruded polymers, but also of metal (lead, aluminium), impregnated fabric tapes etc.
SCHWECHATER KABELWERKE
SKW.AT | MEMBER OF SKB-GROUP
GENERAL TECHNICAL INFORMATION
Common insulation and sheathing materials (polymers) and their use
Polymers Designs Examples of usage
ThermoplasticsNon-cross-linked plastics which undergo reversible plastic deformation at higher temperatures, i.e. which do not harden after cooling and remelting.
Polyvinyl chloride PVC Cables and insulated wires for fixed installation and flexible cables, low-voltage cables for utility networks
Thermoplastic polyethylene PE Low-voltage cables for utility networks subject to fairly high mechanical stressing, insulated overhead lines
Fluoropolymers ETFE, FEP Cables for fixed installation under particularly unfavourable ambient conditions, cables in turbines
Polyamide PA
ThermosetsCross-linked plastics which are no longer deformable at higher temperatures and exhibit certain thermoelastic properties at this temperature and which are re-established after cooling and re-melting.
Cross-linked polyethylene PE(XLPE)
Low-, medium- and high voltage cables, insulated overhead lines
Cross-linked polyvinyl chloride VPVC Heat-resistant insulated wires, e.g. for connecting irons
Thermoplastic elastomersBlends of polyolefins and rubber having amorphous and crystalline regions which undergo reversible plastic deformation at higher temperatures and exhibit rubber-elastic properties without cross-linking at usage temperatures.
Thermoplastic polyurethane elastomer TPE-U
Control cables in cable drag chains
Thermoplastic polyester elastomer TPE-E
Cables for particular thermal and mechanical stresses
Thermoplastic polyolefin elastomer TPE-O
Cables for particular thermal and mechanical stresses
ElastomersCross-linked rubber-like polymers which exhibit rubber-elastic properties at usage temperatures and are no longer plastically deformable at higher temperature.
Ethylene propylene rubber (EPR):EPDM, EPM
Flexible cables for low- and medium voltage, low- and medium-voltage cables
Silicone rubber SiR Heat-resistant insulated wires for temperatures up to 180 °C (up to 250 °C for a short time)
Natural rubber NR
Polychloroprene CR Sheathing material e.g. for flexible cables
Ethylene vinyl acetate (EVA) Heat-resistant insulated wires for temperatures up to 110 °C
DuroplasticsCross-linked shape-stable plastics produced from curable resins.
Polyurethane (PUR) Casting resins for cable fittings
Epoxy resin EP
Special compounds Flame-retardant, halogen-free polymer compounds, non-cross-linked HFFR
Flame-retardant, halogen-free safety cable for protecting high concentrations of people and material goods
- Code for the type - Code(s) for the cable design - Number of cores x nominal conductor cross-section- Code(s) for core identification
- Code for the conductor design- If necessary after a slash: Nominal cross-section of
the screen or concentric conductor
- Code for core identification- Code for rated voltage - Code for additional information
Type codes for power cables
Design- / code element Energy cables according to TP PRAKAB
Halogen-free energy cables according to
TP PRAKAB
Cables according to DIN VDE and ÖVE
Standard TP Prakab 01/03 and 02/08
TP Prakab 02/99, 02/04, 01/05,
and 03/05
DIN VDE 0266, 0276-603, -604, -620,
-627
ÖVE/ÖNORM E 8200-603, -604,
-620, -626, -627TypeStandard type - - N -Power cable - - - E-
Special design - - - X
Rated voltage U0/U300/500 V 05 05 - -0.6/1 kV 1 1 - -
ConductorCu C C no code no codeAl A A A (only 0276) ATinned conductor - - VConductor covered (taping) - no code no code F
InsulationPVC Y - Y YPE - - 2Y 2YVPE - X 2X 2XHalogen-free polymer compounds, non cross-linked - H - NYHalogen-free polymer compounds, cross-linked - - HX NG, 3G
Special structural featuresCable, unscreened K K - -Cable, fl at with web M - - -Cable, aluminium tape screened - F - -Cable, fl exible - T - -Cable, fl exible screened - TF - -
Screen, concentric conductorConcentric conductor (Cu, conventionally stranded) C - C CConcentric conductor (Cu, wave-form) - - CW CCu screen F - S CCu screen (longitudinally water-proof) - - S(F) CJIndividual Cu screen over each core - - SE CE
Sheath, inner coveringPb - - K MPVC Y - Y YPE 2Y - 2Y 2YHalogen-free polymer compounds, non cross-linked - - H NYHalogen-free polymer compounds, cross-linked - H HX NG
Armouring/cable structureSteel tape P D1 B BSteel fl at wire - - F FSteel round wire D D R RSteel tape (counter helix) - - G GCable, fl at Lo - - -Cable, self-supporting Z - - -
Outer coveringPVC Y - Y YPE 2Y - 2Y 2YHalogen-free polymer compounds, non cross-linked - H H -
Insulation / Circuit IntegrityHalogen-free, without insulation/circuit integrity - -R - FRHHalogen-free, with insulation integrity ...minutes - -V ... FE ... FE ...Halogen-free, with circuit integrity ...minutes - - E .. E ..
The complete cable code consists of (according to each standard different composition and structur):
Example: NHXCH 4 x 2.5 RE/2.5 0.6/1 kV FE180/E30, 1-CXKH-V180 -J 4 x 25 RM
GENERAL TECHNICAL INFORMATION
Type codes for telecommunication cables
Design- /code element Telecom. cable according to TP PRAKAB Telecom. cable according to DIN VDETypeTelecommunication cable - -Outdoor cable T A-Outdoor cable with protection against interference - AJ-Installation cable S J-Installation cable for industrial electronics - JE-Switchboard cable - S-
Special design - -
ConductorCu C no codeTinned conductor - -InsulationPaper - PPVC Y YPE E 2YXLPE X -Foam-PE - 02YFoam-PE with skin of solid PE EP 02YSHalogen-free polymer compounds, non cross-linked H H
Design of coreNo fi lling of cable cavities K -Jelly fi lling of cable cavities KP F
Sheath, inner coveringPb - MAl-tape, taped F -Al laminated sheath, longitudinallly applied FL (L)2YPVC Y YPE E -Halogen-free polymer compounds, non cross-linked H H
ArmouringSteel tape - bSteel fl at wire - -Steel round wire D -Steel tape (counter helix) - -Steel wire braid - QAl round wire Z -
Outer coveringMass-impregnated jute - cPVC Y YPE E 2Y
Strain-bearing elementStrain-bearing element, supporting element S T
Stranding elementsPairs - PPairs, individually screened with metal tape - PiMFStar-quads - StStar-quads in long distance cables - St IStar-quads in local cables - St IIIMultiple-twin quad cables - DMStranded in layers - LgStranded in groups - Bd
Insulation / Circuit integrityHalogen-free, without insulation/circuit integrity -R FRHHalogen-free, with insulation integrity ...minutes -V ... FE ...Circuit integrity ... minutes - E ...
- Code for the type- Code(s) for the cable design
- Number of elements x number of cores per element x conductor diameter
- Codes for the stranding elements and the kind of stranding
- Codes for additional information
The complete cable code consists of (according to each standard different composition and structure):
JE-H(St)H Bd 2x2x0.8 FE180/E30, TCEPKPFLE 50 x 4 x 0.8
GENERAL TECHNICAL INFORMATION
Terms for cables relating to their behaviour in case of fi re
Halogen free, non-corrosive combustion gasesThis property ensures that cable materials will generate zero or only small quantity of corrosive gases in case of fire. These gases can cause damage to machinery and other equipments without direct effect of fire. Cables with this property must comply with standard EN 60754.
Flame-retardant (“self-extinguishing”)This property ensures that a single cable will extinguish itself within a certain time after the ignition due to the use of almost non-flammable materials. Cables with this property must comply with standard EN 60332-1-2.
Enhanced flame-retardant (“reduced flame propagation”)This property ensures that there will be no spread of fire beyond the local source of ignition on bunched cables. Cables with this property must comply with standard EN 60332-3 series.
Low smoke emissionThis property ensures that a cable will generate only a minimum quantity of smoke in case of fire. Cables with this property must comply with standard EN 61034-2.
Insulation integrity (e.g. FE 180)This property ensures that a single cable will maintain insulation integrity for a certain time in case of fire. Cables with this property must comply with standards IEC 60331-21 or DIN VDE 0472-814.
Circuit integrity (e.g. E30, E90)This property ensures that a cable installation will maintain circuit integrity for a certain time in case of fire. It is important that in this case the entire cable system is considered, i.e. including installation materials (trays, ladders, cleats, etc.). Cables with this property must comply with standard DIN 4102-12.
GENERAL TECHNICAL INFORMATION
Coreidentifi cation
Cores in cables and insulated wires (except insulated overhead lines) are identified by the colour of the insulation and/or printed colours (numbers, rings) or longitudinal colour stripes. The following colour abbreviation are used:
Colour Abbreviation Colour Abbreviation
blue bu orange orbrown bn pink pkyellow ye red rdgrey gy black bk
green gn violet vtnatural nat white wh
In case of insulated overhead lines, the cores are identifi ed by longitudinal ribs on the insulation surface.
Colour codes for insulated wires and power cables according to HD 308 S2
Number of cores
Cables for fi xed
installation
Flexible cables
With green-yellow core Cables for fi xed
installation
Flexible cables
Without green-yellow core
1 –J 1G –O 1X and other colours
2 –O 2X
3 –J 3G –O 3X
4 –J 4G –O 4X
5 –J 5G –O 5X
6 or more
–J nGother coreswith printed numbers
–O nX with printed numbers
These rules are not valid for cables, which are exclusively used for internal wiring of electrical devices and control cabinets.
Colour codes for installation cables JE-LiYCY and JE-Y(St)Y ... Bd according to VDE 0815
Basic Colours
core Pair 1 Pair 2 Pair 3 Pair 4
a
b
The pairs within a group are identified by the basic colours of the insulation. These colours are repeated in each unit in the same order. In cables with 2 pairs (stranded as star-quad), the a-core (physical circuit 1) is bu, the b-core (physical circuit 1) is rd, the a-core (physical circuit 2) is gy and the b-core (physical circuit 2) is ye.
Group identification by printed helical tapes (“BdZ”)Groups are identified by helical plastic tapes which carry the printed group number.
Group identification by colour rings (“BdSi”) For the identification of groups, the cores contained therein are marked with colour rings. In cables with more than 12 groups, the additional groups are identified with coloured helical plastic tapes.
Number of group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Ring colour
Rin
g gr
oup
in g
roup
un
it
4 cores I I II II8 cores of 4 pairs I II III IV I II III IV I II III IV I II III IV I II III IVHelix
Ring-type IRing-type IIRing-type IIIRing-type IV
GENERAL TECHNICAL INFORMATION
SCHWECHATER KABELWERKE
SKW.AT | MEMBER OF SKB-GROUP
Coreidentifi cation
Colour code for telecommunications cables according to VDE 0815
J–Y(St)Y ... Lg
core Pair 1 Pair 2 Pair 3 Pair 4
a 1) 1) 1) 1) 1)
b
1) The colour of the a-core of the fi rst pair in each layer (counting pair) is red, in all the other pairs it is white.
For more that 5 pairs the colour code is repeated in the same sequence. In cables with 2 pairs (stranded as star-quad), the a-core (physical circuit 1) is rd, the b-core (physical circuit 1) is bk, the a-core (physical circuit 2) is wh and the b-core (physical circuit 2) is ye.
In order to identify the group, a group (tracer group) is identified with a helix of red plastic tape in each layer. The quads in each group are identified by the basic colour of the core insulation. The colours are repeated in each group in the same sequence.
Quad 1 Quad 2 Quad 3 Quad 4 Quad 5
To distinguish the individual cores of each quad these are identified by colour rings. a-core physical circuit 1b-core physical circuit 1a-core physical circuit 2b-core physical circuit 2
GENERAL TECHNICAL INFORMATION
Colour code for telecommunication cables according to EN 60708
Colour code for cores in basic groups
Core insulation colourQuad number (XN) a-core b-core c-core d-core
1 white blue turquoise violet2 white orange turquoise violet3 white green turquoise violet4 white brown turquoise violet5 white grey turquoise violet
Spare quad white blue turquoise violet
Colour code for main groups 25 XN and super groups 50 XN
Sub-group number Colour of the marking plastic tape
1 blue2 orange3 green4 brown5 grey6 white7 red8 black
cable core white
Note: Control wire by non-fi lled cables: a-core: red, b-core: white.
Colur code for basic groups 5 XN
Sub-group numberin each layer
Colour of the marking plastic tape
1 – Counting red2 – Guiding green
other + cable core white
Note: The centre of 35 XN cable core has a red marking tape.
12
34
5
b d
c a
Star quad
1 x 4 x 0,4 mm0,6 mm0,8 mm
3 x 4 x 0,4 mm0,6 mm0,8 mm
5 x 4 x 0,4 mm0,6 mm0,8 mm
20 x 4 x (4 x 5 XN)
0,4 mm0,6 mm0,8 mm
15 x 4 x (3 x 5 XN)
0,4 mm0,6 mm0,8 mm
10 x 4 x (2 x 5 XN)
0,4 mm0,6 mm0,8 mm
50 x 4 x ((3 + 7) x 5 XN)
0,4 mm0,6 mm0,8 mm
35 x 4 x ((1 + 6) x 5 XN)
0,4 mm0,6 mm0,8 mm
25 x 4 x (5 x 5 XN)
0,4 mm0,6 mm0,8 mm
150 x 4 x ((1 + 5) x 25 XN)
0,4 mm0,6 mm0,8 mm
100 x 4 x (4 x 25 XN)
0,4 mm0,6 mm0,8 mm
75 x 4 x (3 x 25 XN)
0,4 mm0,6 mm0,8 mm
400 x 4 x ((1 + 7) x 50 XN)
0,4 mm0,6 mm0,8 mm
300 x 4 x ((1 + 5) x 50 XN)
0,4 mm0,6 mm0,8 mm
200 x 4 x ((1 + 7) x 25 XN)
0,4 mm0,6 mm0,8 mm
(view of the cable beginning, from the centre of the drum)
(view of the cable beginning, from the centre of the drum)
Example:25 x 4 x 0,4is equivalent to5 x 5 XN x 0,4
Star quad can be marked by the symbol XN
GENERAL TECHNICAL INFORMATION
Packing
Type of packingR ........... RingSp ......... Plywood reelD ........... Wooden or steel drum
Drum capacityCable Length in m per standard supply drum and cable diameter Cable
Ø DA 06 DA 07 DA 08 DA 10 DA 12 DA 14 DA 16 DA 18 DA 20 DA 22 DA 24 DA 25 Ø6 1451 2277 3560 67 1054 1617 2622 78 811 1288 1993 4213 89 618 1020 1515 3244 9