JB/T 6465-1992 Rated voltage 35kV power cable indoor and outdoor porcelain sleeve terminals
Some standard content:
1 Subject content and scope of application
Machinery Industry Standard of the People's Republic of China
Rated voltage 35kV power cable
Indoor and outdoor porcelain sleeve terminals
JB 6465-92
This standard specifies the product marking and code, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of indoor and outdoor porcelain sleeve terminals for power cables with rated voltage of 35kV. This standard is applicable to indoor and outdoor porcelain sleeve terminals for oil-impregnated paper insulated power cables and extruded insulated power cables with rated voltage U./U of 21/35kV and 26/35kV. The use conditions shall comply with the provisions of Article 4.1 of GB11033.1. Cited standards
GB2900.10
GB11033
GB5589
GB9327
GB169S
GB1692
GB1693
3 Terms
Electrical terminology Wires and cables
Basic technical requirements for accessories of power cables with rated voltages of 26/35kV and below Technical conditions for high-voltage insulators
Crimp-type copper and aluminum terminals and connecting tubes for power cable conductors Cables Accessories test methods
Test methods for compression and mechanical connection joints of cable conductorsTest methods for artificial pollution migration of high-voltage insulators for AC systemsSalt spray methodHigh-voltage testing technologyPart 2 Test procedureDetermination of tensile properties of vulcanized rubber
Determination method of power frequency breakdown strength and withstand voltage of vulcanized rubberDetermination method of insulation dielectric constant of vulcanized rubber
Determination method of dielectric constant and dielectric loss tangent of vulcanized rubberTest methods for resistivity of wires and cables, semiconductors, rubber and plastic materialsThis standard adopts the terms specified in CB2900.10 and GB11033.1. 4 Product marking and code
4.1 Code
4.1.1 Classification by series
Indoor terminal series
Outdoor terminal series
4.1.2 Classification by structure to be levied
Porcelain sleeve type
4.1.3 Classification by shape characteristics
Sheathed single-core cable, conductor insulation leading upward: Approved by the Ministry of Machinery and Electronics Industry in 1992—08--06 46||tt| |199301-01 implementation
4.1.4 According to the type of cables used
Oil-impregnated paper insulated power cable·
Extruded insulated power cable
4.1.5 According to the order of design
First design
Second design
(and so on)
4.1.6 According to voltage level
21/35kV.26/35k V.
4.1.7 According to the number of cable cores
4.2 Product representation method
4.2.1 The composition and arrangement order of product models are as follows4.2.2 Example
JB646592
\2(omitted)
JB6465-92
Cable core number code
Voltage level code
Design sequence code
Special for matching Cable type code
-Shape feature code
Structural feature code
Series code
a. 21/35kV or 26/35kV single-core oil-impregnated paper insulated cable outdoor type porcelain sleeve terminal, the first design is expressed as WCT-1-51JB6465--92
b. 21/35kV or 26/35kV single-core extruded insulated cable outdoor type porcelain sleeve terminal, the third design. Expressed as WCTJ--3-51JB6465-92
5 Technical requirements
In addition to meeting the requirements of Class I terminals in GB11033 standard, porcelain sleeve terminals shall also meet the following provisions. 5.1 The terminal box shall consist of a porcelain sleeve (with a base that can be fixed on the bracket) for external insulation, outlet fittings and cable entry sleeves. When the base or other parts are wrapped around the cable to form a ring-shaped closed body, magnetic materials shall not be used, otherwise the ring-shaped closed magnetic circuit shall be disconnected.
5.2 The surfaces of all metal parts of the terminal box that are exposed to atmospheric influences shall be surface treated according to anti-corrosion requirements. 5.3 The porcelain sleeve shall comply with the provisions of GB772.
JB6465-92
5.4 The conductor connection fittings shall comply with the corresponding provisions of the national standard "Crimp-type copper and aluminum terminals and connecting pipes for power cable conductors". The DC resistance of the copper-aluminum transition terminal shall not be greater than 1.2 times the DC resistance of the aluminum conductor of the same length and cross-section. 5.5 The dimensions of the mounting holes for fixing the terminal box to the bracket shall comply with the provisions of Figure 1 and Table 1. 8
Figure 1.14 Hole
Figure 1.22 Hole
Figure 1 Mounting holes for fixing terminal box to bracket Chart 1
Number of mounting holes
220,240
Note: The tolerances of L and L are in accordance with IT13 requirements. The tolerances are shown in Figure 1. 5.6 Grounding wire
The terminal grounding wire material should be tinned copper wire. The cross-section of the grounding wire is recommended to be selected according to Table 2. Table 2
Cable main line core section
35 and below
50~120
150~300
5.7 Sealing performance
50 and below
70~150
185~300
Grounding wire section
5.7.1 The metal cast terminal box should be able to withstand a sealing performance test of 0.3MPa air pressure and duration of 1min. The box should not leak during the entire test process.
5.7.2 The terminal box with metal, hard plastic or porcelain sleeve as the box body material shall be able to withstand 0.3MPa hydraulic pressure or air pressure for 15min; the terminal box with elastomeric material (such as rubber) as the box body material shall be able to withstand 0.1MPa hydraulic pressure or air pressure for 2h of sealing performance test. During the whole test process, the pressure gauge shall indicate stable and the terminal box shall not leak. 5.8 Mechanical properties
JB 6465—92
The terminal box (except the terminal box with rubber or plastic box body) shall be able to withstand 0.6MPa hydraulic pressure for 1min of mechanical performance test. During the whole test process, the terminal box shall not break or leak. 5.9 Electrical performancebzxz.net
According to the installation process instructions provided by the manufacturer, install the provided electrical terminal box: each installation component and material on the cable end of the corresponding specification with reliable performance, and then conduct the electrical performance test. The test items and requirements shall comply with the provisions of Table 3a, Table 3b and Table 4a, Table 4b, and the number of test samples shall comply with the provisions of GB11033.2.
The main properties of the insulating materials used in the terminal shall comply with the provisions of Appendix A, B, C, D, E, and F. Table 3a
Test voltage value
Test items
Power frequency voltage test
Dry state Imin
Wet state 1min
Constant voltage load cycle test
126 cycles
117 cycles
Fish load cycle test
(without voltage)9 cycles
Short circuit test
Short circuit thermal stability
Short circuit dynamic stability| |tt||Salt test Lh/1 time
Repeat three times
(Contains NaCI5%,
can also be selected as needed)
Impulse voltage test
1.2/50μs
±10 times
DC voltage test
Negative polarity 15min
Rated voltage test
Radio interference test
Measure 1MHz interference| |tt||Signal voltage
not greater than μV
Appearance inspection
(The conductor is heated by electric current for 5h and cooled for 3h. The maximum temperature of the conductor during heating is the allowable
working temperature of the cable plus 5C
(The conductor is heated by electric current for 5h and cooled for 3h. The maximum temperature of the conductor during heating is the allowable
working temperature of the cable plus 5C. The entire cable terminal sample
should be immersed in water)
(Each sample is short-circuited 2 times, the current value shall comply with the provisions of Table 1 of GB11033.1)
(Each sample is short-circuited once, the current is 63kA) 25
(All cable terminal samples shall be inspected for appearance after passing all tests
)
Test method
GB11033.1
Article 5.1
Under consideration
GB11033.2
Article 2.3.2
No flashover, no breakdown
Assessed by subsequent tests
Assessed by subsequent tests
Assessed by subsequent tests
According to GB4585.1
GB311.3 and
GB11033.1
Article 5.3
GB311.3 and
GB11033.1
Article 5.2
GB 11033.1
Article 5.1
Under consideration
No breakdown, positive and negative polarity
each is allowed to flash over once,
but not included in the total test
number of times
No flashover, no breakdown
No flashover, no breakdown
Under the specified test voltage
, the discharge interference signal
is not greater than the specified value
No crack, twist, deformation, stagnation of insulation
Test series
Indoor terminal
Outdoor terminal
Test items
Power voltage test
Dry state Imin
Wet state 1min
Partial discharge test| |tt||Constant voltage load cycle test
3 cycles
Partial discharge test
Constant voltage load cycle test
123 cycles
114 cycles
Load cycle test
(without voltage)
9 cycles
Phase test
Short circuit thermal stability
Short circuit dynamic stability
Salt spray test 1h/1 time
Repeat three times
(Contains NaCF5%,
can also be selected as needed)
Impact voltage test
±10 times
DC voltage test
Negative polarity 15min
Working voltage test
JB 646592
Test method
(The conductor is heated by current for 5h and cooled for 3h. The maximum temperature of the conductor during heating is
the allowable working temperature of the cable plus 5°C)
(The conductor is heated by current for 5h and cooled for 3h. The maximum temperature of the conductor during heating is
the allowable working temperature of the cable plus 5°C)
(The conductor is heated by current for 5h and cooled for 3h. The maximum temperature of the conductor during heating is
the allowable working temperature of the cable plus 5°C. The entire cable terminal
the sample should be immersed in water)
(Each sample is short-circuited twice. The current value should comply with the provisions of Table 1 of GB11033.1)
(Each The sample is short-circuited once, the current is 63kA) 25
GB11033.1
Article 5.1
No flashover, no breakdown
Under the specified extinguishing voltage
, the discharge amount is not greater than
Assessed by subsequent tests
Under the specified extinguishing voltage
, the discharge amount is not greater than
10PC
In the test
GB11033.2
Article 2.3.2
Assessed by subsequent tests
Assessed by subsequent tests
Assessed by subsequent tests
According to GB458 5.1
Test series
Indoor terminal
No breakdown, positive and negative polarity
GB311.3 and
each allow flashover once,
GB11033.1
Article 5.3
GB311.3 and
GB11033.1
Article 5.2
GB11033.1
Article 5.1
But not included in the total test
number
No flashover, no breakdown
No flashover, no breakdown
Outdoor terminal
Test items Partial discharge test
Appearance inspection
Test items
Power voltage test
Dry state 1min
Impulse voltage test
1.2/50g+s
±10 times
DC voltage test
Negative polarity
Power voltage test
Test items
Power voltage test
Dry state 1min
Wet state 1min
Partial discharge test
Load cycle test
(without voltage)
3 cycles
JB 6465--92
Continued Table 3b
Test method
(All cable terminal samples shall be subjected to visual inspection after all tests
passed)
Test voltage value
Test method
Article 5.1 of GB11033.1
Article 5.3 of GB311.3 and
Article 5.2 of GB11033.1
Article 5.1 of GB11033.1
Test series
Indoor terminal|| tt||Under the specified test voltage
, the discharge amount
is not greater than 10PC
No cracks, deformation
deformation, leakage of insulating agent
No flashover, no breakdown
No breakdown, positive and negative polarity are allowed to flash over once each, which is not included in the total number of tests
No flashover, no breakdown
No flashover, no breakdown
Table 4b
Test voltage value
(The conductor is heated by current for Sh and cooled for 3h. The maximum temperature of the conductor during heating is the allowable working temperature of the conductor plus 5℃)
Test method
GB11033.1
Article 5.1
GB 5589.2
No flashover, no breakdown
Under the specified extinguishing voltage,
the discharge amount is not more than 10PC
Assessed by post-reading test
Outdoor terminal
Test procedure
Indoor terminal Outdoor terminal
Test procedure
Indoor terminal Outdoor terminal
Test items
Partial discharge test
Impulse voltage test
1.2/50s±10 times
DC voltage test
Negative polarity 15min
Rated voltage test
Test method
JB 646592
Continued Table 4b
Test voltage value
“Test method
Under the specified extinguishing voltage, the discharge amount is not greater than 10PC
GB311.3 and no breakdown, and the positive and negative polarities are allowed to flash over once, but it is not counted in
GB11033.1
Article 5.3
GB311.3 and
GB11033.1
Article 5.2
GB11033.1
Article 5.1
Article 5.3 of the requirements shall be tested according to the test method specified in GB772. The requirements specified in Article 6.1
Article 5.4 of the requirements shall be tested according to the test method specified in GB9327.2. 6.23
5.3 The requirements specified in Article 5.7 shall be tested in accordance with the provisions of GB5589.4. Total number of tests
No flashover, no breakdown
No flashover, no breakdown
6.4 The requirements specified in Article 5.8 shall be tested in accordance with the provisions of GB11033.1, Article 5.11. Test procedure
Indoor terminal Outdoor terminal
6.5 The requirements specified in Article 5.9 shall be tested in accordance with the test series and test methods specified in Table 3a, Table 3b or Table 4a, Table 4b. 6.6
The requirements specified in Article 5.2 shall be inspected visually. 7 Inspection rules
7.1 Products shall be inspected and qualified by the technical inspection department of the manufacturing unit before they can be shipped out of the factory, and the shipped products shall be accompanied by a product quality inspection certificate. 7.2 The product shall be type tested in accordance with the requirements of Table 3a or 3b of Articles 5.1 to 5.8, 5.9 and Article 5.10. When the cable used is oil-impregnated paper insulated cable, Table 3a shall be used; when it is extruded insulation, Table 3b shall be used. The number of samples and the evaluation method of test results shall be in accordance with the corresponding provisions of Class I terminals in GB11033.
7.3 Sampling test
7.3.1 In normal production, a sampling test should be conducted once every 35 years. It should also be conducted when the user makes a request and the two parties agree. 7.3.2 Products should be sampled and tested in accordance with the requirements of Articles 5.3 to 5.6, Article 5.7.2, Article 5.8, Table 4a or Table 4b of Article 5.9 and Article 5.10. When the supporting cable is a paperless insulated cable, Table 4a shall be used, and when it is an extruded insulation cable, Table 4b shall be used. The number of samples and the evaluation method of the test results shall be in accordance with the corresponding provisions of Class I terminals in GB11033. 7.4 Routine test
Products should be routinely tested in accordance with the requirements of Articles 5.1, 5.2, 5.5 and 5.7.1. 8 Marking, packaging, transportation, storage
Terminal boxes must be marked with obvious permanent markings when leaving the factory. The contents are as follows: 8.1
Manufacturer name:
Product model, name, product standard number; rated voltage;
d. Conductor material, cross-section and number of cores;
Factory date and number.
8.2 Packaging
JB6465-92
Terminal boxes and accessories should be properly packaged to prevent loosening and loss of parts. The porcelain sleeves should have corresponding anti-pressure and anti-impact packaging measures. Materials with storage periods must be marked with the factory date and storage period. The outside of the packaging should be marked with words such as "handle with care" and "rainproof" or related marks. 8.2. 2
The packaging box should be accompanied by a list of materials and installation process instructions. The following should be marked on the packing box:
Manufacturer name;
Product model, name, product certificate: rated voltage;
Conductor material, cross section and number of cores;
Weight;
Factory date and number.
8.3 Transportation
Products should be protected from strong vibration and impact during transportation. 8.4 Storage
Terminal boxes should be stored in a dry and ventilated warehouse with fire prevention measures. The storage of various parts and accessories should comply with the relevant regulations.
JB 6465--92
Appendix A
Rosin petroleum-based fluid insulating agent for cable accessories (supplement)
Rosin petroleum-based fluid insulating agent for cable accessories is shown in Table A1. Table A1
Item name
Kinematic viscosity
m/sAperture 5mm100℃
Specific gravity 25℃
Pouring temperature
Acid value (KOHmmg/g
Shrinkage (150~20C)%
Free sulfur
Ash content%
Crystallization 80℃300h
Breakdown strength (kV/mm) 20℃
Dielectric loss tangent tgs20℃≤
Dielectric constant40~E0℃
Volume permeability (a·cm）
Insulating silicone oil for cable accessories see Table B1
Kinematic viscosity m/s25℃
Dielectric loss tangent
Dielectric constant25:50Hz
Breakdown strength kV/2.5mm25
Volume Resistivity
Appendix B
Insulating silicone oil for cable accessories
(Supplement)
Performance index
6×10->~7×10-
1.4×10-~J.6×10-3
0.89~0.95
5×10*
Performance index
Colorless and transparent oil
2.5X×1 0-~4X10-1
JB646592
Attachment C
Asphalt alkyd glass varnish tape for cable accessories (supplement)
Asphalt alkyd glass varnish tape for cable accessories See Table C1. Table C1
Item Name
Tensile Strength (N/15mm Width) ≥
Elongation % ≥
Volume Resistivity (n·cm) 20℃》|| tt||130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
The performance requirements of self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Work breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C|| tt||No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note: Type 2 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 70°C and below, and Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90°C and below. The domain
GB1695| |tt||GB1692
GB1693
GB1693
Appendix C to this standard
Appendix C to this standard
Appendix C to this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(Supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it on a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples automatically loosen, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric hot air drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 561
Manufacturer name:
Product model, name, product standard number; rated voltage;
d. Conductor material, cross section and number of cores;
Factory date and number.
8.2 Packaging
JB6465-92
Terminal boxes and accessories should be properly packaged to prevent loosening and loss of parts. Porcelain sleeves have corresponding anti-pressure and anti-impact packaging measures. Materials with storage periods must be marked with factory date and storage period. The outside of the package should be marked with words such as "Handle with care" and "Rainproof" or related marks. 8.2. 2
The packaging box should be accompanied by a list of materials and installation process instructions. The following should be marked on the packing box:
Manufacturer name;
Product model, name, product certificate: rated voltage;
Conductor material, cross section and number of cores;
Weight;
Factory date and number.
8.3 Transportation
Products should be protected from strong vibration and impact during transportation. 8.4 Storage
Terminal boxes should be stored in a dry and ventilated warehouse with fire prevention measures. The storage of various parts and accessories should comply with the relevant regulations.
JB 6465--92
Appendix A
Rosin petroleum-based fluid insulating agent for cable accessories (supplement)
Rosin petroleum-based fluid insulating agent for cable accessories is shown in Table A1. Table A1
Item name
Kinematic viscosity
m/sAperture 5mm100℃
Specific gravity 25℃
Pouring temperature
Acid value (KOHmmg/g
Shrinkage (150~20C)%
Free sulfur
Ash content%
Crystallization 80℃300h
Breakdown strength (kV/mm) 20℃
Dielectric loss tangent tgs20℃≤
Dielectric constant40~E0℃
Volume permeability (a·cm）
Insulating silicone oil for cable accessories see Table B1
Kinematic viscosity m/s25℃
Dielectric loss tangent
Dielectric constant25:50Hz
Breakdown strength kV/2.5mm25
Volume Resistivity
Appendix B
Insulating silicone oil for cable accessories
(Supplement)
Performance index
6×10->~7×10-
1.4×10-~J.6×10-3
0.89~0.95
5×10*
Performance index
Colorless and transparent oil
2.5X×1 0-~4X10-1
JB646592
Attachment C
Asphalt alkyd glass varnish tape for cable accessories (supplement)
Asphalt alkyd glass varnish tape for cable accessories See Table C1. Table C1
Item Name
Tensile Strength (N/15mm Width) ≥
Elongation % ≥
Volume Resistivity (n·cm) 20℃》|| tt||130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
The performance requirements of self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Work breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C|| tt||No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note: Type 2 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 70℃ and below, and Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90℃ and below. The domain
GB1695| |tt||GB1692
GB1693
GB1693
Appendix C to this standard
Appendix C to this standard
Appendix C to this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(Supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it on a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples loosen automatically, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric blast drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 561
Manufacturer name:
Product model, name, product standard number; rated voltage;
d. Conductor material, cross section and number of cores;
Factory date and number.
8.2 Packaging
JB6465-92
Terminal boxes and accessories should be properly packaged to prevent loosening and loss of parts. Porcelain sleeves have corresponding anti-pressure and anti-impact packaging measures. Materials with 8.2.11
storage period must be marked with factory date and storage period. The outside of the package should be marked with words such as "handle with care" and "rainproof" or related marks. 8.2. 2
The packaging box should be accompanied by a list of materials and installation process instructions. The following should be marked on the packing box:
Manufacturer name;
Product model, name, product certificate: rated voltage;
Conductor material, cross section and number of cores;
Weight;
Factory date and number.
8.3 Transportation
Products should be protected from strong vibration and impact during transportation. 8.4 Storage
Terminal boxes should be stored in a dry and ventilated warehouse with fire prevention measures. The storage of various parts and accessories should comply with the relevant regulations.
JB 6465--92
Appendix A
Rosin petroleum-based fluid insulating agent for cable accessories (supplement)
Rosin petroleum-based fluid insulating agent for cable accessories is shown in Table A1. Table A1
Item name
Kinematic viscosity
m/sAperture 5mm100℃
Specific gravity 25℃
Pouring temperature
Acid value (KOHmmg/g
Shrinkage (150~20C)%
Free sulfur
Ash content%
Crystallization 80℃300h
Breakdown strength (kV/mm) 20℃
Dielectric loss tangent tgs20℃≤
Dielectric constant40~E0℃
Volume permeability (a·cm）
Insulating silicone oil for cable accessories see Table B1
Kinematic viscosity m/s25℃
Dielectric loss tangent
Dielectric constant25:50Hz
Breakdown strength kV/2.5mm25
Volume Resistivity
Appendix B
Insulating silicone oil for cable accessories
(Supplement)
Performance index
6×10->~7×10-
1.4×10-~J.6×10-3
0.89~0.95
5×10*
Performance index
Colorless and transparent oil
2.5X×1 0-~4X10-1
JB646592
Attachment C
Asphalt alkyd glass varnished cloth tape for cable accessories (supplement)
Asphalt alkyd glass varnished cloth tape for cable accessories See Table C1. Table C1
Project Name
Tensile Strength (N/15mm Width) ≥
Elongation % ≥
Volume Resistivity (n·cm) 20℃》|| tt||130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
The performance requirements of self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Work breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C|| tt||No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note: Type 2 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 70℃ and below, and Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90℃ and below. The domain
GB1695| |tt||GB1692
GB1693
GB1693
Appendix C to this standard
Appendix C to this standard
Appendix C to this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(Supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it around a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples loosen automatically, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric blast drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 564 Storage
Terminal boxes should be stored in a dry, ventilated warehouse with fire prevention measures. The storage of various parts and accessories should comply with the relevant regulations.
JB 6465--92
Appendix A
Rosin petroleum-based fluid insulating agent for cable accessories (supplement)
Rosin petroleum-based fluid insulating agent for cable accessories is shown in Table A1. Table A1
Item name
Kinematic viscosity
m/sAperture 5mm100℃
Specific gravity 25℃
Pouring temperature
Acid value (KOHmmg/g
Shrinkage (150~20C)%
Free sulfur
Ash content%
Crystallization 80℃300h
Breakdown strength (kV/mm) 20℃
Dielectric loss tangent tgs20℃≤
Dielectric constant40~E0℃
Volume permeability (a·cm）
Insulating silicone oil for cable accessories see Table B1
Kinematic viscosity m/s25℃
Dielectric loss tangent
Dielectric constant25:50Hz
Breakdown strength kV/2.5mm25
Volume Resistivity
Appendix B
Insulating silicone oil for cable accessories
(Supplement)
Performance index
6×10->~7×10-
1.4×10-~J.6×10-3
0.89~0.95
5×10*
Performance index
Colorless and transparent oil
2.5X×1 0-~4X10-1
JB646592
Attachment C
Asphalt alkyd glass varnish tape for cable accessories (supplement)
Asphalt alkyd glass varnish tape for cable accessories See Table C1. Table C1
Item Name
Tensile Strength (N/15mm Width) ≥
Elongation % ≥
Volume Resistivity (n·cm) 20℃》|| tt||130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
The performance requirements of self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Work breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C|| tt||No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note: Type 2 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 70°C and below, and Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90°C and below. The domain
GB1695| |tt||GB1692
GB1693
GB1693
Appendix C to this standard
Appendix C to this standard
Appendix C to this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(Supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it on a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples automatically loosen, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric hot air drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 564 Storage
Terminal boxes should be stored in a dry, ventilated warehouse with fire prevention measures. The storage of various parts and accessories should comply with the relevant regulations.
JB 6465--92
Appendix A
Rosin petroleum-based fluid insulating agent for cable accessories (supplement)
Rosin petroleum-based fluid insulating agent for cable accessories is shown in Table A1. Table A1
Item name
Kinematic viscosity
m/sAperture 5mm100℃
Specific gravity 25℃
Pouring temperature
Acid value (KOHmmg/g
Shrinkage (150~20C)%
Free sulfur
Ash content%
Crystallization 80℃300h
Breakdown strength (kV/mm) 20℃
Dielectric loss tangent tgs20℃≤
Dielectric constant40~E0℃
Volume permeability (a·cm）
Insulating silicone oil for cable accessories see Table B1
Kinematic viscosity m/s25℃
Dielectric loss tangent
Dielectric constant25:50Hz
Breakdown strength kV/2.5mm25
Volume Resistivity
Appendix B
Insulating silicone oil for cable accessories
(Supplement)
Performance index
6×10->~7×10-
1.4×10-~J.6×10-3
0.89~0.95
5×10*
Performance index
Colorless and transparent oil
2.5X×1 0-~4X10-1
JB646592
Attachment C
Asphalt alkyd glass varnished cloth tape for cable accessories (supplement)
Asphalt alkyd glass varnished cloth tape for cable accessories See Table C1. Table C1
Project Name
Tensile Strength (N/15mm Width) ≥
Elongation % ≥
Volume Resistivity (n·cm) 20℃》|| tt||130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
The performance requirements of self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Work breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C|| tt||No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note: Type 2 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 70℃ and below, and Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90℃ and below. The domain
GB1695| |tt||GB1692
GB1693
GB1693
Appendix C to this standard
Appendix C to this standard
Appendix C to this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(Supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it around a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples loosen automatically, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric blast drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 565X×10-~4X10-1
JB646592
Appendix C
Asphalt alkyd glass varnished cloth tape for cable accessories (supplementary part)
Asphalt alkyd glass varnished cloth tape for cable accessories is shown in Table C1. Table C1
Item name
Tensile strength (N/15mm width) ≥
Elongation %≥
Volume resistivity (n·cm) 20℃》
130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
Performance requirements for self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Rate breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C
No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note; Type 2 insulating tape is recommended for long-term working temperature of 70C and below Extruded insulated cable joints and terminals. Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90℃ and below. Domain
GB1695
GB1692
GB1693
GB1693
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it on a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples loosen automatically, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric blast drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 565X×10-~4X10-1
JB646592
Appendix C
Asphalt alkyd glass varnished cloth tape for cable accessories (supplementary part)
Asphalt alkyd glass varnished cloth tape for cable accessories is shown in Table C1. Table C1
Item name
Tensile strength (N/15mm width) ≥
Elongation %≥
Volume resistivity (n·cm) 20℃》
130℃≥
Dielectric constant
Breakdown strength (kV/mm) 20C≥
130℃2
Dielectric loss tangent tge (%) 20℃
Oil resistance After immersion in low-voltage cable oil at 105℃±2℃ for 48h Water absorption rate (%) After immersion in water at 20℃ for 24h, ≤Appendix D
Performance requirements for self-adhesive rubber insulating tape
(Supplement)
Performance requirements for self-adhesive rubber insulating tape are shown in Table D1. D1
Project name
Tensile strength MPa
Elongation %≥
Rate breakdown voltage kV/mm>
Volume resistivity
Dielectric loss tangent
Dielectric constant
Self-adhesion
Xie Thermal stress cracking
Heat resistance C
No loosening
No cracking
Performance index
The layer should not be sticky and peeling
No loosening
No cracking
Note; Type 2 insulating tape is recommended for long-term working temperature of 70C and below Extruded insulated cable joints and terminals. Type 3 insulating tape is recommended for extruded insulated cable joints and terminals with long-term working temperature of 90℃ and below. Domain
GB1695
GB1692
GB1693
GB1693
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
JB6465-92
Appendix E
Performance requirements of self-adhesive rubber semi-conductive tape
(supplement)
Performance requirements of self-adhesive rubber semi-conductive tape are shown in Table E1. Table E1
Item name
Tensile strength MPa≥
Elongation %≥
Volume resistivity a·cm
Self-adhesion
Resistance to thermal stress cracking
Heat resistance
Performance index
No loosening
No cracking
130℃
Appendix F
Test method for heat resistance, self-adhesion and thermal stress cracking resistance of self-adhesive rubber tape (supplement)
F1 Preparation of test specimen
Test method
GB 3048.3
Appendix C of this standard
Appendix C of this standard
Appendix C of this standard
Cut a section of 150±10mm from the finished coil, remove the isolation layer, stretch it by 200%~300%, and wrap it around a metal rod with a diameter of 10±0.2mm in a semi-overlapping manner. Wrap it in four layers in total, and the wrapping length is 50±5mm. F2 Heat resistance test
After placing the test strip at an ambient temperature of 23±2℃ for 4h, prepare 3 specimens according to the specimen preparation method of C1, and then place the specimens in an electric blast drying oven at 100±2℃ (without blasting) and take them out after 168h. If there is no loosening, deformation, cracking, surface bubbles, etc. in the 3 specimens, the test is passed, otherwise the test is not passed. F3 self-adhesive test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then place the samples at this temperature for 24 hours. If none of the 3 samples loosen automatically, the test passes. If one sample loosens, the test fails. Heat stress cracking test
After placing the sample strip at an ambient temperature of 23±2℃ for 4 hours, prepare 3 samples according to the C1 sample preparation method, and then suspend the samples in an electric blast drying oven at 130±2℃. Take them out after 1 hour. If none of the 3 samples crack, the test passes. If one sample cracks, the test fails.
Additional instructions:
This standard is proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Shanghai Cable Research Institute of the Ministry of Machinery and Electronics Industry and the Cable Accessories Professional Committee of the Electric Wire and Cable Association of the China Electrical Equipment Industry Association.
The main drafters of this standard are Ge Guangming, Zhou Mingyang and Wu Meisheng. 56
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