GB/T 12706.2-2020 Active National standards

GB/T 12706.2-2020 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um=1.2 kV) up to 35 kV (Um=40.5 kV)—Part 2:Cables for rated voltages from 6 kV(Um=7.2 kV) up to 30 kV(Um=36 kV)

GB/T 12706.2-2020 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um=1.2 kV) up to 35 kV (Um=40.5 kV)—Part 2:Cables for rated voltages from 6 kV(Um=7.2 kV) up to 30 kV(Um=36 kV)

Publish Date: 2020-03-31 Implement Date: 2020-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us
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Basic Information

Standard Code: GB/T 12706.2-2020
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: Cables and their accessories
ICS Name: Cable
Publish Date: 2020-03-31
Implement Date: 2020-10-01
Pages: 66 pages

Scope

This part of GB/T 12706 specifies the structure, dimensions, and test requirements of extruded insulated power cables with a rated voltage of 6 kV to 30 kV.
This part applies to fixed-installation extruded insulated power cables with a rated voltage of 6 kV to 30 kV in distribution networks or industrial installations. It also applies to cables with a longitudinal waterproof structure and their tests. When determining the application of cables, it is advisable to consider the possible risk of radial water ingress.
This part does not apply to cables subject to special installation and operating conditions, such as overhead cables, mining industries, nuclear power plants (inside and near the safety shell), and underwater or shipboard cables.

Development Information

Word Count: 126 Thousand words Pages: 66 pages

Same series standard

Replace the following standards

Referenced Standards

GB 156-2003 Standard voltages GB/T 156-2007 Standard voltages GB/T 156-2017 Standard voltages GB/Z 156-2025 Good practice for dynamic light scattering(DLS) measurements GB/T 2951.11-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 11:Methods for general application—Measurement of thickness and overall dimensions—Tests for determining the mechanical properties GB/T 2951.12-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 12:Methods for general application—Thermal ageing methods GB/T 2951.13-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 13:Methods for general application—Measurement for determining the density—Water absorption tests—Shrinkage test GB/T 2951.14-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 14:Methods for general application—Test at low temperature GB/T 2951.21-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 21:Methods specific to elastomeric compounds—Ozone resistance, hot set and mineral oil immersion tests GB/T 2951.31-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 31:Methods specific to PVC compounds—Pressure test at high temperature—Test for resistance to cracking GB/T 2951.32-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 32:Methods specific to PVC compounds—Loss of mass test—Thermal stability test GB/T 2951.41-2008 Common test methods for insulating and sheathing materials of electric and optical cables—Part 41:Methods specific to polyethylene and polypropylene compounds—Resistance to environmental stress cracking—Measurement of the melt flow index—Carbon black and/or mineral filler content measurement in polyethylene by direct combustion—Measurement of carbon black content by thermo gravimetric analysis(TGA)—Assessment of carbon black dispersion in polyethylene using a microscope GB/T 3048.10-1994 Test methods for determining electrical properties of electric cables and wires Spark of extruded anti-corrosion protective sheaths GB/T 3048.10-2007 Test methods for electrical properties of electric cables and wires—Part 10:Spark test of extruded protective sheaths GB/T 3048.12-1994 Test methods for determining electrical properties of electric cables and wires Partial discharge test GB/T 3048.12-2007 Test methods for electrical properties of electric cables and wires—Part 12:Partial discharge test GB/T 3048.12-2025 Test methods for electrical properties of electric cables and wires—Part 12:Partial discharge test GB/T 3048.13-1992 Electric cables and wires—Method for impulse voltage test GB/T 3048.13-2007 Test methods for electrical properties of electric cables and wires—Part 13:Impulse voltage test GB/T 3048.13-2025 Test methods for electrical properties of electric cables and wires—Part 13:Impulse voltage test GB/T 3956-1997 Conductors of insulated cables GB/T 3956-2008 Conductors of insulated cables GB 6995.3-1986 Markings for electric cables and wires Part 3:Identifications of cables and wires GB/T 6995.3-2008 Markings for electric wires and cables—Part 3:Identifications of cables and wires GB/T 7113.2-2005 Flexible insulating sleeving—Methods of test GB/T 7113.2-2014 Flexible insulating sleeving—Part 2:Methods of test GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 11017.2-2014 Power cables with cross-linked polyethylene insulation and their accessories for rated voltage of 110 kV (Um=126 kV)—Part 2:Power cables GB/T 11091-2005 Copper strips for cables GB/T 11091-2014 Copper strip for cables GB/T 11091-2024 Copper strip and foil for cables GB/T 12706.1-2002 Power cables with extruded insulation and their accessories for rated voltages from 1kV(Um=1.2kV)up to 35kV(Um=40.5kV)—Part 1:Cables for rated voltages of 1kV(Um=1.2kV) and 3kV(Um=3.6kV) GB/T 12706.1-2008 Power cables with extruded insulation and their accessories for rated voltages from 1 kV(Um=1.2 kV)up to 35 kV(Um=40.5 kV)—Part 1:Cables for rated voltage of 1 kV(Um=1.2 kV)and 3 kV(Um=3.6 kV) GB/T 12706.1-2020 Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um=1.2 kV) up to 35 kV (Um=40.5 kV)—Part 1:Cables for rated voltage of 1 kV(Um=1.2 kV)and 3 kV(Um=3.6 kV) GB/T 16927.1-1997 High-voltage test techniques Part 1:General test requirements GB/T 16927.1-2011 High-voltage test techniques—Part 1:General definitions and test requirements GB/T 16927.3-2010 High voltage test techniques—Part 3:Definitions and requirements for on-site testing GB/T 17650.1-1998 Test on gases evolved during combustion of materials from cables Part 1:Determination of the amount of halogen acid gas GB/T 17650.1-2021 Test on gases evolved during combustion of materials from cables or optical fiber cables—Part 1:Determination of the halogen acid gas content GB/T 17650.2-1998 Test on gases evolved during combustion of materials from cables Part 2:Determination of degree of acidity of gases by measuring pH and conductivity GB/T 17650.2-2021 Test on gases evolved during combustion of materials from cables or optical fiber cables—Part 2:Determination of acidity (by pH measurement) and conductivity GB/T 18380.11-2008 Tests on electric and optical fibre cables under fire conditions—Part 11:Test for vertical flame propagation for a single insulated wire or cable—Apparatus GB/T 18380.11-2022 Tests on electric and optical fibre cables under fire conditions—Part 11:Test for vertical flame propagation for a single insulated wire or cable—Apparatus GB/T 18380.12-2008 Test on electric and optical fibre cables under fire conditions—Part 12:Test for vertical flame propagation for a single insulated wire or cable—Procedure for 1 kW pre-mixed flame GB/T 18380.12-2022 Tests on electric and optical fibre cables under fire conditions—Part 12:Test for vertical flame propagation for a single insulated wire or cable—Procedure for 1 kW pre-mixed flame GB/T 18380.13-2008 Tests on electric and optical fibre cables under fire conditions—Part 13:Test for vertical flame propagation for a single insulated wire or cable—Procedure for determination of flaming droplets/particles GB/T 18380.13-2022 Tests on electric and optical fibre cables under fire conditions—Part 13:Test for vertical flame propagation for a single insulated wire or cable—Procedure for determination of flaming droplets/particles GB/T 18380.33-2008 Tests on electric and optical fibre cables under fire conditions—Part 33:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category A GB/T 18380.33-2022 Tests on electric and optical fibre cables under fire conditions—Part 33:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category A GB/T 18380.34-2008 Tests on electric and optical fibre cables under fire conditions—Part 34:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category B GB/T 18380.34-2022 Tests on electric and optical fibre cables under fire conditions—Part 34:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category B GB/T 18380.35-2008 Tests on electric and optical fibre cables under fire conditions—Part 35:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category C GB/T 18380.35-2022 Tests on electric and optical fibre cables under fire conditions—Part 35:Test for vertical flame spread of vertically-mountedbunched wires or cables—Category C GB/T 18380.36-2008 Tests on electric and optical fibre cables under fire conditions—Part 36:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category D GB/T 18380.36-2022 Tests on electric and optical fibre cables under fire conditions—Part 36:Test for vertical flame spread of vertically-mounted bunched wires or cables—Category D GB/T 19666-2005 Flame retardant and fire resistant wires and cables GB/T 19666-2019 General rules for flame retardant and fire resistant electric wires and cables or optical fiber cables JB/T 8137.1-1995 JB/T 8137.1-1995 - Specifications for the form and size of delivery racks for electric cables and wires JB/T 8137.1-2013 Wire and Cable Delivery Tray - Part 1: General requirements JB/T 8137.1-1999 JB/T 8137.1-1999 Electric wires and cables delivered on a plate - Part 1: General provisions JB/T 8137.2-1995 JB/T 8137.2-1995 wire and cable delivery disk technical requirements JB/T 8137.2-2013 Wiring Cable Delivery Tray - Part 2: Full Wooden Construction Delivery Tray (English) JB/T 8137.2-1999 Wiring Cable Delivery Tray - Part 2: Full Wooden Construction Delivery Tray JB/T 8137.3-2013 Wiring Cable Delivery Tray Part 3: Full Steelcorrugated Delivery Tray JB/T 8137.3-1999 Delivery tray for cables and wires - Part 3: Full steel corrugated structure delivery tray JB/T 8137.4-2013 Electric Cable and Wire Delivery Tray - Part 4: Steel Composite Structure Delivery Tray JB/T 8137.4-1999 Wiring Harness Delivery Vessel - Part 4: Steel and Composite Structure Delivery Vessels JB/T 8996-2014 JBT 8996-2014 Selection guidelines for high-voltage cables JB/T 8996-1999 JB/T 8996-1999 High-voltage cable selection guidelines IEC 60229:2007 IEC 61034-2 ISO 48

Adopt standards

IEC 60502-2:2014

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