IEC 60502-1-2021 pdf free download – Power cables with extruded insulation and their accessories for rated voltages from 1 kV (U m = 1,2 kV) up to 30 kV (U m = 36 kV) – Part 1: Cables for rated voltages of 1 kV (U m = 1,2 kV) and 3 kV (U m = 3,6 kV).
This part of lEC 60502 specifies the construction, dimensions and test requirements of power cables with extruded solid insulation for rated AC voltages of 1kV (Um = 1,2kV) and 3 kv(Um = 3,6 kV) for fixed installations such as distribution networks or industrial installations.
Cables of rated AC voltage 1 kV(Um = 1,2kV) designed and tested in accordance with thisdocument can also be used, if declared by the manufacturer, in DC distribution systems havingtheir nominal voltage s 750 v DC (with a maximum of 900 v DC) between a live conductor andneutral/earth , or s 1 500 v DC (with a maximum 1 800 v DC) between two live conductors.Applicable core identification for DC systems are considered in accordance with localinstallation regulations.
NOTE 1 Recommendations for prefered core colours for line conductors in DC systems are given in IEC 60445.However，localinstallation regulations for DC systems can already contain specific identificationrequirements.
This document includes cables which exhibit properties of reduced flame spread, low levels ofsmoke emission and halogen-free gas emission when exposed to fire.
Cables for special installation and service conditions are not included, for example cables foroverhead networks, the mining industry, nuclear power plants (in and around the containment
area), submarine use or shipboard application，or cables directly connected to photovoltaicsystems.
NOTE 2 Cables for photovoltaic systems are covered by IEc 62930.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document.For dated references, only the edition cited applies.
For undated references,the latestedition of the referenced document (including anyamendments) applies.
IEC 60060-1，High-voltage test techniques – Part 1:General definitions and test requirements
IEC 60183，Guidance for the selection of high-voltage A.C. cable systems
IEC 60228,Conductors of insulated cables
lEC 60230,Impulse tests on cables and their accessories
IEC 60332-1-2,Tests on electric and optical fibre cables under fire conditions – Part 1-2:Test for vertical flame propagation for a single insulated wire or cable – Procedure for 1 kWpre-mixed flame
IEC 60811-506,Electric and optical fibre cables – Test methods for non-metallic materials -Part 506: Mechanical tests – lmpact test at low temperature for insulations and sheaths
IEC 60811-507，Electric and optical fibre cables – Test methods for non-metallic materials -Part 507: Mechanical tests – Hot set test for cross-linked materials
IEC 60811-508,Electric and optical fibre cables – Test methods for non-metallic materials -Part 508: Mechanical tests – Pressure test at high temperature for insulation and sheaths
IEC 60811-509，Electric and optical fibre cables – Test methods for non-metallic materials -Part 509: Mechanicaltests -Test for resistance of insulations and sheaths to cracking (heatshock test)
IEC 60811-605，Electric and optical fibre cables – Test methods for non-metallic materials -Part 605: Physical tests – Measurement of carbon black andor mineralifiller in polyethylenecompounds
IEC 60811-606,Electric and optical fibre cables -Test methods for non-metallic materials -Part 606: Physical tests – Methods for determining the density
IEC 61034-2,Measurement of smoke density of cables burning under defined conditions -Part 2: Test procedure and requirements
IEC 62230，Electric cables – Spark-test method
ISO 48-2:2018, Rubber，vulcanized or thermoplastic – Determination of hardness – Part 2:Hardness between 10 IRHD and 100 IRHD
3Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the followingaddresses:
IEC Electropedia: available at http://www.electropedia.orgl
lso Online browsing platform: available at http://www.iso.org/obp
3.1 Definitions of dimensional values(thicknesses, cross-sections, etc.)
3.1.1
nominal value
value by which a quantity is designated and which is often used in tables
Note 1 to entry. Usually，in this document，nominal values give rise to values to be checked by measurementstaking into account specified tolerances.
3.1.2
approximate value
value which is neither guaranteed nor checked but is used, for example, for the calculation ofother dimensional values.IEC 60502-1 pdf download.