GB/T 33594-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 33594-2017 | English | 145 |
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Charging cables for electric vehicles
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GB/T 33594-2017: Charging cables for electric vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT33594-2017
GB
NATIONAL STANDARD
ICS 29.060.20
K 13
Charging cables for electric vehicles
Issued on. MAY 12, 2017
Implemented on. DECEMBER 01, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 6
4 Use features... 8
5 Code, model and product expression method... 9
6 Technical requirements... 12
7 Cable marking... 21
8 Insulated core identification... 21
9 Routine test... 23
10 Sample test... 24
11 Type test... 26
12 Inspection rules... 42
13 Packaging, transportation and storage... 45
Appendix A (Normative) Insulation hardness determination... 46
Appendix B (Normative) Sheath tear resistance test method... 49
Appendix C (Normative) Saponification test... 52
1 Scope
This standard specifies the use characteristics, expression methods, technical
requirements, marking, test methods and requirements, inspection rules and
cable packaging, transportation and storage of charging cables for electric
vehicles.
This standard applies to the charging cables (which may include the signal or
control core) having a rated voltage AC 450/750 V and below and DC 1.0 kV
and below for the conductive charging device of electric vehicles.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this Standard.
GB/T 1690-2010 Rubber, vulcanized or thermoplastic - Determination of the
effect of liquids
GB/T 2423.3-2006 Environmental testing for electric and electronic
products - Part 2.Testing method test Cab. Damp heat steady state
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
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
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
3 Terms and definitions
The terms and definitions as defined in GB/T 2900.10 AND the following terms
and definitions apply to this document.
3.1 Nominal value
It refers to the specified magnitude which is often used in forms.
Note. In this standard, the magnitude which is usually introduced by the
nominal value is verified through measurement under the consideration of
the specified tolerance.
3.2 Median value
It refers to the middle value of the several values obtained from test AND
arranged in the order of ascending (or descending) if the number of values
is odd, OR the average of the middle two values if the number of values is
even.
3.3 Rated voltage
It refers to the reference voltage which is used for cable design, use and
electrical performance test.
3.4 Routine tests
It refers to the test performed by the manufacturer on all the manufacturing
length of the cable to verify that all cables comply with the specified
requirements.
3.5 Sample tests
It refers to the test performed by the manufacturer on the finished cable
sample OR on some components from the finished cable to the required
frequency, to verify that the cables comply with the specified requirements.
3.6
Type tests
It refers to the test performed on one type of cables covered in this standard
in accordance with general commercial principles before the cable is
supplied, to demonstrate that the cable has good properties that satisfy the
intended service conditions.
4 Use features
4.1 Rated voltage
AC. U0/U is 450/750 V and below.
DC. U0 is 1.0 kV and below.
4.2 Temperature range
Ambient temperature range is -40 °C ~ +50 °C, AND it shall select appropriate
cables during use based on environmental needs.
5 Code, model and product expression method
5.1 Code
5.1.1 Product code
EV. electric vehicle
AC (can be omitted). for AC charging
DC. for DC charging
5.1.2 Conductor structure
(Omitted). the fifth copper conductor
R. the 6th copper conductor
5.1.3 Insulation material code
S. Thermoplastic elastomer at continuous working temperature 70 °C (TPE)
S90.Thermoplastic elastomer at continuous working temperature 90 °C (TPE)
E. The ethylene-propylene rubber or similar synthetic rubber at continuous
working temperature 90 °C
EY. Rigid ethylene-propylene rubber or similar halogen-free synthetic material
5.1.4 Sheath (inner sheath) material code
S. Thermoplastic elastomer at continuous working temperature 70 °C (TPE)
5.2 Models
5.2.1 The cable model composition and arrangement sequence are as shown
in Figure 1.
5.2.2 Common cable model and name are as shown in Table 2.
6 Technical requirements
6.1 Conductor
Conductor shall be of the 5th or 6th annealed copper conductor with/without
metal plating in GB/T 3956-2008.Signal or control core conductors are allowed
to be reinforced with a suitable material. Conductor nominal cross-sectional
area is as shown in Table 3.
6.2 Isolation layer
It is allowed for conductor to be wrapped with a layer of suitable material to
form an isolation layer.
6.3 Insulation (including main insulation core, grounding core, auxiliary
power core)
6.3.1 Structure
The insulation shall be wrap tightly around the conductor or isolation layer,
AND shall be able to be stripped without damaging the insulation, conductor or
tin plating, if any.
6.3.2 Materials
Insulation shall use one of the extruded molding insulation material mixtures as
listed in Table 1.
6.3.3 Thickness
The nominal thickness of the insulation is as shown in Table 4, AND the
thickness of any isolation layer shall not be included in the insulation thickness.
The average value of the insulation thickness measurement shall not be less
than the specified nominal thickness, wherein the minimum measurement
value shall not be less than 90% of the nominal value ~ 0.1 mm.
6.3.4 Spark test
Insulated core shall be subjected to the working frequency spark test as
specified in Table 5 of GB/T 3048.9-2007 as an intermediate inspection.
6.4 Signal or control core
6.4.1 Structure
It is allowed for one or more signals or control cores.
If there is shielding, the signal or control core may be shielded in two ways.
bare copper or tinned copper wire braided shield; or aluminum-plastic
composite tape wrapped shield plus bare copper or tinned copper wire braided
composite shield.
6.5 Cable core and filler
6.5.1 Structure
All insulated cores (which may include signals or control cores) shall be twisted
together. The signal or control cores may be twisted into a unit that is stranded
with the other cores, BUT they shall not be in the center of the cable core.
It is allowed to use fillers when stranding the insulated cores.
6.5.2 Filler material
The material used as the filler shall be suitable for the operating temperature of
the cable AND compatible with the insulation and sheathing material of the
cable. In the case of halogen-free cables, the filler shall comply with the
halogen content assessment in Table 13.
6.6 Inner sheath
6.6.1 Structure
If there is an overall shield, the cable core outside shall have extruded inner
sheath.
6.7 Overall shield (if any)
The shield shall be braided into the inner sheath by bare copper or tinned
copper wire.
The nominal diameter of the copper wire or tinned copper wire used for
braiding is as shown in Table 6.
6.8 Sheath
6.8.1 Materials
Cable sheath shall be an extrusion-molded sheathing material mixture as listed
in Table 1, which is wrapped around the braided shield or cable core.
Sheath shall be single-layer extruded, which shall be closely contacted with
the insulated core or shield layer BUT not stick to each other.
6.8.2 Thickness
The nominal thickness of the sheath for each type and model of cable is as
shown in Table 7 ~ Table 10.
6.9 Cable outer diameter
When user has requirement for the upper limit and lower limit of the average
outer diameter, it shall follow the requirements of the user. The upper limit and
lower limit of the average outer diameter of the cable as shown in Table 7 ~
Table 10 are for reference purposes only.
7 Cable marking
7.1 General requirements
Cable shall have the continuous marking of the manufacturer name, product
code, cable model specifications and rated voltage. The manufacturer name
marking may be the manufacturer's name or trademark.
Cable model is as shown in 5.2.
The marking may be printed with ink or embossed on the sheath.
7.2 Marking continuity
The distance between the end of a complete marking on the sheath surface
and the beginning of the next complete marking shall not exceed 550 mm.
7.3 Clarity and rub resistance
All markings shall be clearly written.
Printing markings shall be rub resistance. The following tests shall be carried
out to check whether the requirements are complied with. Wipe it gently with
absorbent cotton or cotton cloth soaked in water for 10 times, AND then
visually check that the printing on the cable surface shall be basically
unchanged.
8 Insulated core identification
8.1 General requirements
The main insulated cable core shall be color-coded AND shall comply with 8.2.
Cable auxiliary power core, signal or control cores and other extension cores
can be color or number identified, AND shall comply with the provisions of 8.2
and 8.3.
8.2 Color chromatography
8.2.1 General requirements
Cable insulated cores shall be identified by coloring the insulation or other
suitable methods.
Except for cores identified in green/yellow color combinations, only one color
per insulated core of the cable shall be used. Green and yellow cannot be used
as independent colors.
8.2.2 Color chromatography
The coloring of the cable main insulated core shall give preference to the
chromatography as follows.
8.2.3 Green/yellow combination
The core color distribution of the green/yellow combination shall comply with
the following requirements. for each insulated core of 15 mm in length, one of
the colors shall cover at least 30% and not more than 70% of the surface of the
insulated core AND the other color shall cover the rest of the insulated core.
8.3 Number identification
8.3.1 General requirements
Auxiliary power cable cores, signal or control cores and other extension cores
can use number identification.
The core insulation shall be of the same color and arranged in numerical order,
except for the green/yellow core (if any).
8.3.2 Prioritized arrangement of numbers
The number markings shall be repeated at equal intervals along the insulated
cores AND the two adjacent complete number markings shall be reversed to
one another.
8.3.3 Rub resistance
Number markings shall be rub-resistant, AND it shall make inspection in
accordance with the inspection method as specified in 7.3 to determine
whether it complies with requirements.
9 Routine test
9.1 Conductor DC resistance test
Finished cable shall be kept at the appropriate temperature in the laboratory
for at least 12 h before conducting conductor DC test.
Conductors DC resistance test shall be performed in accordance with the
requirements of GB/T 3048.4-2007.
Resistance measurements shall be corrected to the value equivalent to 1 km
length at 20 °C in accordance with the formula and coefficient as specified in
GB/T 3956-2008.
The conductor DC resistance at 20 °C of each conductor shall not exceed the
corresponding maximum value as specified in GB/T 3956-2008.
9.2 Voltage test
Voltage test shall be carried out at ambient temperature, AC charging cable
shall be tested in accordance with the requirements of GB/T 3048.8-2007,
9.3 Spark test
Insulated core shall be subjected to spark test in accordance with 6.3.4 and
6.4.4.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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