GB/T 5023.3-2008 English PDF (GB/T5023.3-2008)

GB/T 5023.3-2008: Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V -- Part 3: Non-sheathed cables for fixed wiring
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GB/T 5023.3-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.060.20
K 13
GB/T 5023.3-2008 / IEC 60227-3:1997
Replacing GB 5023.3-1997
Polyvinyl Chloride Insulated Cables of Rated Voltages
up to and Including 450/750V – Part 3: Non-Sheathed
Cables for Fixed Wiring
(IEC 60227:1997, IDT)
ISSUED ON: JUNE 30, 2008
IMPLEMENTED ON: MAY 1, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 General ... 5 
2 Single-Core Non-Sheathed Cable with Rigid Conductor for General
Purposes ... 6 
3 Single-Core Non-Sheathed Cable with Flexible Conductor for General
Purposes ... 8 
4 Single-Core Non-Sheathed Cable with Solid Conductor for Internal Wiring
for a Conductor Temperature of 70°C ... 11 
5 Singe-Core Non-Sheathed Cable with Flexible Conductor for Internal
Wiring for a Conductor Temperature of 70°C ... 13 
6 Single-Core Non-Sheathed Cable with Solid Conductor for Internal Wiring
for a Conductor Temperature of 90°C ... 15 
7 Single-Core Non-Sheathed Cable with Flexible Conductor for Internal
Wiring for a Conductor temperature of 90°C ... 17 
Foreword
GB/T 5023 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including
450/750V is divided into 7 parts:
--- Part 1: General Requirements;
--- Part 2: Test Methods;
--- Part 3: Non-Sheathed Cables for Fixed Wiring;
--- Part 4: Sheathed Cables for Fixed Wiring;
--- Part 5: Soft Cables (Soft Wires);
--- Part 6: Lift Cables and Cables for Flexible Connections;
--- Part 7: Flexible Cables Screened and Unscreened with Two or More
Conductors.
This Part is Part 3 of GB/T 5023. This Part equivalently adopts IEC 60227-3:1997
Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450/750V –
Part 3: Non-Sheathed Cables for Fixed Wiring, Version 2.1 (English Edition).
For ease of use, this Part of GB/T 5023 makes the following editorial changes:
--- Use “decimal point” to replace the “comma” that acts as the decimal point
--- Delete the Foreword of IEC 60227-3:1997.
This Part replaces GB 5023.3-1997 Polyvinyl Chloride Insulated Cables of Rated
Voltages up to and Including 450/750V.
Compared with GB 5023.3-1997, this Part mainly has the following changes:
--- Regulate the upper- and lower-limit against the overall diameter of 60227 IEC
Model 01, 02, 05, 06, 07, 08, and other types of cables; adjust the upper limit of
diameter of cables in the original standard (Table 1, 3, 5, 7, 9, 11);
--- Modify 60227 IEC Model 01-type cable’s 35mm2 and 50mm2 minimum
insulation resistance; 35mm2 corresponding minimum insulation resistance of
0.0040 MΩ•km was changed into 0.0043 MΩ•km; while 50mm2 corresponding
minimum insulation resistance of 0.0045 MΩ•km was changed into 0.0043
MΩ•km.
This Part was proposed by China Electrical Equipment Industrial Association.
Polyvinyl Chloride Insulated Cables of Rated Voltages
up to and Including 450/750V – Part 3: Non-Sheathed
Cables for Fixed Wiring
1 General
1.1 Scope
This Part of GB/T 5023 details the particular specifications for polyvinyl chloride
insulated single-core non-sheathed cables for fixed wiring and rated voltages up to
and including 450/750V.
All cables shall comply with the appropriate requirements given in GB/T 5023.1, and
the individual types of cables shall each comply with the particular requirements of
this Part.
1.2 Normative references
The following normative documents contain provisions which, through reference in
this text, constitute provisions of this part of GB/T 5023. For dated references, the
subsequent amendments (excluding corrigendum) or revisions do not apply to this
Part, however, parties who reach an agreement based on this Part are encouraged to
study if the latest versions of these documents are applicable. For undated references,
the latest edition of the referenced document applies.
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 (IEC 60811-1-1:2001, IDT)
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 (IEC 60811-1-2:1985, IDT)
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 (IEC 60811-1-4:1985, IDT)
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 Anti-Crack (IEC
60811-3-1:1985, IDT)
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 (IEC 60811-3-2:1985,
IDT)
GB/T 3956-1997 Conductors Of Insulated Cables (idt IEC 60228:1978)
GB/T 5023.1 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and
Including 450/750V - Part 1: General Requirements (GB/T 5023.1-2008, IEC
60227-1:2007, IDT)
GB/T 5023.2-2008 Polyvinyl Chloride Insulated Cables of Rated Voltages up to
and Including 450/750V - Part 2: Test Methods (IEC 60227-2:2003, IDT)
GB/T 18380.12-2008 Test on Electric and Optical Fiber Cables under Fire
Conditions - Part 12: Test for Vertical Flame Propagation for a Single Insulated
Wire or Cable (IEC 60332-1-2:2004, IDT)
2 Single-Core Non-Sheathed Cable with Rigid
Conductor for General Purposes
2.1 Code designation
60227 IEC 01 (BV).
2.2 Rated voltage
450/750V.
2.3 Construction
2.3.1 Conductor
Number of cores: 1.
The conductors shall comply with the requirements of GB/T 3956-1997:
--- Class 1 for solid conductors;
--- Class 2 for stranded conductors.
2.3.2 Insulation
The extruded insulation shall be polyvinyl chloride compound of Type PVC/C applied
GB/T 5023.3-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.060.20
K 13
GB/T 5023.3-2008 / IEC 60227-3:1997
Replacing GB 5023.3-1997
Polyvinyl Chloride Insulated Cables of Rated Voltages
up to and Including 450/750V – Part 3: Non-Sheathed
Cables for Fixed Wiring
(IEC 60227:1997, IDT)
ISSUED ON: JUNE 30, 2008
IMPLEMENTED ON: MAY 1, 2009
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 General ... 5 
2 Single-Core Non-Sheathed Cable with Rigid Conductor for General
Purposes ... 6 
3 Single-Core Non-Sheathed Cable with Flexible Conductor for General
Purposes ... 8 
4 Single-Core Non-Sheathed Cable with Solid Conductor for Internal Wiring
for a Conductor Temperature of 70°C ... 11 
5 Singe-Core Non-Sheathed Cable with Flexible Conductor for Internal
Wiring for a Conductor Temperature of 70°C ... 13 
6 Single-Core Non-Sheathed Cable with Solid Conductor for Internal Wiring
for a Conductor Temperature of 90°C ... 15 
7 Single-Core Non-Sheathed Cable with Flexible Conductor for Internal
Wiring for a Conductor temperature of 90°C ... 17 
Foreword
GB/T 5023 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including
450/750V is divided into 7 parts:
--- Part 1: General Requirements;
--- Part 2: Test Methods;
--- Part 3: Non-Sheathed Cables for Fixed Wiring;
--- Part 4: Sheathed Cables for Fixed Wiring;
--- Part 5: Soft Cables (Soft Wires);
--- Part 6: Lift Cables and Cables for Flexible Connections;
--- Part 7: Flexible Cables Screened and Unscreened with Two or More
Conductors.
This Part is Part 3 of GB/T 5023. This Part equivalently adopts IEC 60227-3:1997
Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450/750V –
Part 3: Non-Sheathed Cables for Fixed Wiring, Version 2.1 (English Edition).
For ease of use, this Part of GB/T 5023 makes the following editorial changes:
--- Use “decimal point” to replace the “comma” that acts as the decimal point
--- Delete the Foreword of IEC 60227-3:1997.
This Part replaces GB 5023.3-1997 Polyvinyl Chloride Insulated Cables of Rated
Voltages up to and Including 450/750V.
Compared with GB 5023.3-1997, this Part mainly has the following changes:
--- Regulate the upper- and lower-limit against the overall diameter of 60227 IEC
Model 01, 02, 05, 06, 07, 08, and other types of cables; adjust the upper limit of
diameter of cables in the original standard (Table 1, 3, 5, 7, 9, 11);
--- Modify 60227 IEC Model 01-type cable’s 35mm2 and 50mm2 minimum
insulation resistance; 35mm2 corresponding minimum insulation resistance of
0.0040 MΩ•km was changed into 0.0043 MΩ•km; while 50mm2 corresponding
minimum insulation resistance of 0.0045 MΩ•km was changed into 0.0043
MΩ•km.
This Part was proposed by China Electrical Equipment Industrial Association.
Polyvinyl Chloride Insulated Cables of Rated Voltages
up to and Including 450/750V – Part 3: Non-Sheathed
Cables for Fixed Wiring
1 General
1.1 Scope
This Part of GB/T 5023 details the particular specifications for polyvinyl chloride
insulated single-core non-sheathed cables for fixed wiring and rated voltages up to
and including 450/750V.
All cables shall comply with the appropriate requirements given in GB/T 5023.1, and
the individual types of cables shall each comply with the particular requirements of
this Part.
1.2 Normative references
The following normative documents contain provisions which, through reference in
this text, constitute provisions of this part of GB/T 5023. For dated references, the
subsequent amendments (excluding corrigendum) or revisions do not apply to this
Part, however, parties who reach an agreement based on this Part are encouraged to
study if the latest versions of these documents are applicable. For undated references,
the latest edition of the referenced document applies.
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 (IEC 60811-1-1:2001, IDT)
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 (IEC 60811-1-2:1985, IDT)
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 (IEC 60811-1-4:1985, IDT)
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 Anti-Crack (IEC
60811-3-1:1985, IDT)
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 (IEC 60811-3-2:1985,
IDT)
GB/T 3956-1997 Conductors Of Insulated Cables (idt IEC 60228:1978)
GB/T 5023.1 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and
Including 450/750V - Part 1: General Requirements (GB/T 5023.1-2008, IEC
60227-1:2007, IDT)
GB/T 5023.2-2008 Polyvinyl Chloride Insulated Cables of Rated Voltages up to
and Including 450/750V - Part 2: Test Methods (IEC 60227-2:2003, IDT)
GB/T 18380.12-2008 Test on Electric and Optical Fiber Cables under Fire
Conditions - Part 12: Test for Vertical Flame Propagation for a Single Insulated
Wire or Cable (IEC 60332-1-2:2004, IDT)
2 Single-Core Non-Sheathed Cable with Rigid
Conductor for General Purposes
2.1 Code designation
60227 IEC 01 (BV).
2.2 Rated voltage
450/750V.
2.3 Construction
2.3.1 Conductor
Number of cores: 1.
The conductors shall comply with the requirements of GB/T 3956-1997:
--- Class 1 for solid conductors;
--- Class 2 for stranded conductors.
2.3.2 Insulation
The extruded insulation shall be polyvinyl chloride compound of Type PVC/C applied