SWA/Cu/Al Conductor XLPE/PVC Insulated PVC/PE Sheath IEC
60502 Power CableIEC 60502 Cu XLPE/PVC Insulated Swa PVC/PE Sheath
Power CableIEC 60502 Cable IEC60502-1 cable power Cable CU/AL
conductor XLPE/PVC insulated PVC/PE sheath International
Standard IEC 60502-1 from the International Electrotechnical
Commission sets out the specification for power cables with
extruded insulation with a voltage rating of 1kV to 30kV. This
standard also covers their accessories. The cables must have an
extruded solid insulation and may contain longitudinal
water-blocking properties such as swellable tapes and powders if
the installation conditions demand it. Many of the cables
manufactured in accordance with IEC 60502 are designed for local
power distribution, and for power and auxiliary controls. Where
additional mechanical protection is provided, the cables are
suitable for installation in masonry and concrete. The
water-blocking properties are important to prevent water ingress
when used in wet conditions. IEC60502-2 cable It should be
noted that IEC 60502-2 excludes cables for special conditions such
as those manufactured for use in overhead lines, mining, nuclear
power plants, marine and submarine applications. Where this is the
case, technical specifications refer to cables being manufactured
'Generally to IEC 60502-2'. This Standard is divided into the
following parts: PartsVoltage Rating11kV to 3kV26kV to
30kV3Reserved for future development4Test requirements on
accessories for cables with a voltage rating from 6kV to
30kVScope of IEC 60502-1 Part 1 of this international Standard
specified the construction, dimensions and test requirements of
cables with extruded solid insulation with a rated voltage
ranging between 1kV and 3kV for fixed installations such as
distribution networks or industrial installations. Some of the
cables covered by IEC 60502 have flame spread-reducing or Low Smoke
Zero Halogen (LSZH) properties when exposed to fire. IEC 60502-1
Systems categories CategoriesOperating conditionsASystems in which
any phase conductor that comes in contact with earth or an earth
conductor is disconnected from the system within
1 minuteBSystems which, under fault conditions, are operated
for a short time with one phase earthed (not exceeding 8hrs on
any occasion and no more than 125hrs per annum)CAll systems which
do not fall into category A or BIEC 60502-1 Cable properties
Insulated compoundsThermoplastic - intended for cables with
voltage rating smaller or equal to 3kVPolyvinly Chloride
(PVC)ThermosettingEthylene Propylene Rubber or similar (EPR or
EPDM)High modulus or hard grade ethylene propylene rubber
(HEPR)Cross-linked Polyethylene (XLPE) Sheathing
compoundsThermoplasticPolyvinyl Chloride (PVC)Polyethylene
(PE)Halogen-FreeElastomericPolychloropreneChlorosulphonated
polyethylenePolymers similar to above ConductorsClass
1 or Class 2PlainMetal-coated annealed copperPlain
aluminiumAluminium alloyClass 5PlainMetal-coated copper according
to IEC 60228Some cables meeting the requirements of IEC 60502
benefit from armoured layers, making them able to withstand
a higher degree of mechanical stress than comparative sized
unarmoured cables. Various types of armour are specified, such as
concentric copper wire screens and/or helically wound copper tape
as required in the N2XCH cable. Code-Designation for Power
Cables with PVC or XLPE InsulationDesignIdentification of
DesignExplanationsConductorNAccording to VDE Standard(No
abbreviation for copper conductor)AAluminum conductorsYInsulation
of thermoplastic Polyvinyl chloride (PVC)2XInsulation cross-linked
Polyethylene (XLPE)Concentric Conductor, ShieldingCConcentric
conductors of copper wires and copper tape, helically
woundedCWConcentric conductors of copper wires in wave conal
formation and and copper tape, helically woundedCEConcentric
conductors of copper wires and copper tape over each individual
conductor, helically woundedShieldingSShielding of copper wires and
copper tape, helically woundedSEShielding of copper wires and
copper tape over each individual conductor, helically
wounded(F)Longitudinally water-proof shieldingArmorBArmor of steel
tapeFArmor of galvanized flat steel wiresGCounter helix of
galvanized steel tapeJacketKLead jacketOuter JacketYPVC jacket2YPE
jacketCable for U0/U 0.6/1 kV are additionally designated
with -JCables with green-yellow (green-natural) conductor are
marked with protective conductor-OCables without green-yellow
(green-natural) conductor are marked without protective
conductor NMV cable according to DIN VDE 0276AAluminium (Al)
conductor[blank]Copper (Cu) conductor2XCross-linked polyethylene
(XLPE) insulationSScreen of copper wires and copper tape, helically
woundSEScreen of copper wires and copper tape over each individual
core, helically woundYPolyvinyl Chloride (PVC) sheath2YPolyethylene
(PE) sheath(F)2YLongitudinal water tightness with PE
sheath(FL)2YLongitudinal and transversal water tightness with Al/PE
sheath Packaging
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