This part details the product technical requirements for rubber insulated braided flexible cords and rubber insulated rubber or chloroprene or other equivalent synthetic elastomer sheathed flexible cords and flexible cables with rated voltages of 450/750V and below. All cables shall comply with the corresponding requirements specified in GB 5013.1, and each type of cable shall comply with the special requirements of this part. GB 5013.4-1997 Rubber insulated cables with rated voltages of 450/750V and below Part 4: Flexible cords and flexible cables GB5013.4-1997 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Rubber insulated cables of ratedyoltages up to and including 450/750vPart 4; Cords and flexible cables1 Description
1.1 Specification
GB 5013. 4—1997
Idt IEC 245-4+ 1994
ReplacesGH3958
GB 5013. 2—85
GB5013 Part 4 details the product technical requirements for rubber insulated braided flexible cords and rubber insulated rubber or chloroprene or other equivalent synthetic elastomer sheathed flexible cords and flexible cables of rated voltage up to and including 450/750v. All cables shall comply with the corresponding requirements specified in GB5013.1, and each type of cable shall comply with the special requirements of this part. 1.2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is released, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 2951.1—1997 General test methods for cable insulation and sheathing materials Part 1: General test methods Section 1, Thickness and overall dimensions measurement - Mechanical properties test General test methods for cable insulation and sheathing materials Part 1: General test methods Section 2: Heat GB/T 2951.2-1997
Aging test methods
GB/T 2951.4—1997
General test methods for cable insulation and sheathing materials Part 1: General test methods Section 4: Low temperature tests
General test methods for cable insulation and sheathing materials Part 2, Special test methods for elastomer mixtures GB/T 2951.5-1997
Method Section 1: Ozone resistance test - Hot extension test - Mineral oil immersion test GB5013.1-1997 Rubber insulated cables with rated voltage of 450/750V and below Part 1: General requirements 7 Rubber insulated cables with rated voltage of 450/750V and below Part 2: Test methods GB5013.2—1997
GB/T 3956—1997
Conductors of cables
2 Shrinking flexible cord
2.1 Model
245 IEC 51(RX),
2.2 Rated voltage
300/300 V.
2.3 Structure
2.3.1 Conductor
Number of cores: 2 cores or 3 cores.
Conductors shall comply with the requirements of the 6th conductor in GB/T3956-1997. The maximum resistance of conductors at 20C may be increased by 3%. Single-line National Technical Supervision Bureau approved on October 13, 1997 and implemented on October 1, 1998
It may not be tinned or plated.
2.3.2 Isolation layer
CB 5013. 4-1997
A layer of insulation layer made of suitable materials may be wrapped around each conductor. For relevant requirements, see 5.1.3 of GB5013.1-1997.
2.3.3 Insulation
The insulation shall be a LE1 type rubber mixture wrapped around each conductor. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value in column 2 of Table 1. Table 1245 IEC51 (RX) braided cord dimensions Number of cores and nominal conductor cross-section
2 × 0.75
2.3.4 Filling
The filler shall be a textile material
Specified value of insulation thickness
2.3.5 Composition of insulating cores and fillers
The insulating cores and textile fillers shall be twisted together. Fillers may be placed in the middle of the cabled cores.
Average outer diameter
The twisting pitch of the cabled cores shall not exceed 10 times the diameter of the circle passing through the center of each insulating core. 2.3.6 Total textile braid
After twisting, the insulating cores and fillers shall be covered with a textile braid. 2.3.7 Outer diameter
The average outer diameter shall be within the range specified in columns 3 and 4 of Table 1. 2.4 Tests
The tests and inspections specified in Table 2. shall be used to check whether the requirements of 2.3 are met. 2.5 Guidelines for use
In normal use, the maximum temperature of the conductor is 60 ℃. Note: Other guidelines are under consideration.
Table 2245IEC51 (RX) type braided flexible cordTest number
Reading and inspection items
Electrical performance test
Conductor resistance
Finished cable 2000V voltage test
Structural dimension inspection
Test type
Test method
GB (GB/T)
5013.1 and 5013.2
Article number||tt| |Test items
Structural inspection
Insulation thickness measurement
Outer diameter measurement
Average value
Insulation mechanical properties
Tensile test before aging
Tensile test after air oven aging
Tensile test after oxygen bomb aging
Hot extension test
Heat adhesion of textile braided layer
Mechanical strength of finished cable
Warping test and 2 000 V immersion test after test
Abrasion test
3 Ordinary strength sheathed flexible cord
3.1 Type
245 IEC 53 (Y2).
3.2 Rated voltage
300/500 V.
3.3 Structure
3.3.1 Conductor
Number of cores: 2, 3, 4 or 5 cores.
GB 5013. 4—1997
Table 2 (end)
Test type
Test force method
GB(G/T)
Conductors should meet the requirements of the 5th conductor specified in GB/T3956. Single wire without plating or plating. 3.3.2 Isolation layer
Test number
Inspection and manual test
3.1 and 2.2
Each conductor may be covered with an isolation layer made of suitable material. For relevant requirements, see 5.1.3 of GB5013.1-1997. 3.3.3 Insulation
The insulation wrapped on each conductor shall be IE1 type rubber mixture. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value in column 2 of Table 3. 3.3.4 The insulated cores and fillers (if any) of the cabled insulated cores shall be twisted together.
Fillers may be placed in the cabled cores. 3.3.5 Sheath
The sheath wrapped on the cabled cores shall be SE3 type rubber mixture. The sheath thickness shall comply with the specified value in column 3 of Table 3. The sheath should be a single layer and should fill the gaps between the cable cores. The sheath should be able to be stripped without damaging the insulated core. 3.3.6 Outer diameter
GB 5013. 4—1997
The average outer diameter should be within the range specified in columns 4 and 5 of Table 3. 3.4 Tests
The tests and tests specified in Table 4 should be used to check whether they meet the requirements of 3.3. 3.5 Guidelines for use
In normal use, the maximum temperature of the conductor is 60°C. Note: Other guidelines are under consideration.
Table 32451EC53 (YZ) rubber sheathed flexible cord size Number of cores and nominal sensitive surface of conductor
Insulation thickness
Specified value
Expansion thickness
Specified value
Average outer diameter
245IEC53 (YZ) rubber sheathed flexible cord test
Test item Date
Electrical performance test
Conductor resistance
Insulated wire core Medium voltage test according to specified insulation thickness
1500V for 0.6mm and below
2 000 for 0.6mm and above V
2000V voltage test for finished cable
Structural dimension inspection
Structural inspection
Insulation thickness measurement
Sheath thickness measurement
Outer diameter measurement
Test type
Test method
GB(GB/T)
5013-1 and 5013.2
Thailand number
Inspection and manual test
Average value
According to national standards
Test items
Insulation mechanical properties
Tensile test before aging
Tensile test after aging in air supply box
Tensile test after aging in oxygen bomb
Hot extension test
Mechanical properties of sheath
Tensile test before aging
Control test after aging in air oven
Hot extension test
Mechanical strength of finished cable
Bending test Water immersion voltage test without test bottom 2-core or finished cable test voltage 2000V
For cables with more than 2 cores,
Insulation thickness is (1.6 mm) and below The test voltage of the insulated wire core is 1V
GB 5013. 4 - 1997
Table 4 (end)
Test type
Insulation thickness greater than c. 6 mmL Insulated core Test voltage is 2 (00 V
4 Ordinary chloroprene or other equivalent synthetic elastomer sheathed flexible cord 4.1 Type
245 JEC 57 (YZW)
4.2 Rated voltage
300/500 V.
4.3 Structure
Number of cores: 2, 3, 4 or 5 cores.
Test room method
GR (GH/T)
Conductor shall comply with the requirements of GB/T3956-1997 5th type conductor. Single wire may be unplated or tinned. 4.3.2 Isolation layer
Document number
8. 1.3. 1
3.1 and 2.2
3.1 and 3.3
3.1 and 2.3
Each conductor may be covered with an insulating layer made of a suitable material. For relevant requirements, see 5.1.3 of (GB5013.1-1997). 4.3.3 The insulation of each conductor shall be IE1 type rubber mixture. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value of the second grade of Table 5. 4.3.4 The insulated core and filler (if any) of the cabled insulated core shall be twisted together.
Fillers, 4.3.5 Sheath
GB 5013. 4--1997
The sheath covering the cabled core shall be a rubber compound of type SE4. The sheath thickness shall comply with the values ​​specified in column 3 of Table 5. The sheath shall be extruded in a single layer and shall fill the gaps between the paper cores. The sheath shall be capable of being stripped without damaging the insulating cores. 4.3.6 Outside diameter
The average outside diameter shall be within the range specified in columns 4 and 5 of Table 5. 4.4 Tests
Compliance with the requirements of 4.3 shall be checked by the tests and tests specified in Table 6. 4.5 Guidelines for use
The maximum conductor temperature during normal use is G0°C. Note: Other guidelines are under consideration.
Table 5245IEC57 (YZW) rubber sheathed flexible cord minimum core number and conductor nominal area
Insulation thickness
Specified value
Sheath barrier
Specified value
Table 62451EC57 (YZW) rubber sheathed flexible cord testTest items
Electrical performance test
Conductor resistance
Insulated wire cores are connected to the specified insulation thickness for voltage test
1 500 V for 0.6 mm and below
2 000 V for 0.6 mm and above V
2000V voltage test of finished cable
Test type
Average outer diameter
Test method
GB(GB/T)
Article number
Test structure
Structural dimension inspection
Structural inspection
Insulation thickness measurement
Sheath thickness measurement
Outer diameter measurement
Average value
Ovality
Insulation mechanical properties
Tension test before aging
Tension test after air oven aging
Turning force test after oxygen bomb aging
Hot extension test
Sheath mechanical properties
Tensile test before aging
Tensile test after air oven aging
Tensile test after oil immersion
Hot extension test
Mechanical strength of finished cable
Bending test and water voltage test after test. The test voltage of 2-core or finished cable is 2000V
For cables with more than 2 cores:
Insulation thickness is 0.6mm and below
Test voltage of core is 1500V
Insulation thickness is greater than 0.6mm
Test voltage is 2000V
Low temperature test
Sheath bending test
CB 5013.4—1997
Table 6 (end)
Test type
5 Heavy chlorinated or other equivalent synthetic elastomer rubber sheathed flexible cable 5.1 Model
245 IEC 66 (YCW).
5.2 Rated voltage
450/750V.
5.3 Structure
5.3.1 Conductor
Number of cores: 1, 2, 3, 4 or 5 cores
Test method
GB (GB/T)
50131 and 5013.2
5013-2
Article number
Inspection and manual test
8.1.3.1
3.1 and 2. 2
3.1 and 2.3
3.1 and 2.3
Conductors shall comply with the requirements of the 5th conductor specified in GB/T3956-1997. Single wires may not be plated or plated. 5. 3.2 Isolation layer
GB 5013. 4-1997
Each conductor may be coated with an isolation layer made of suitable materials. For relevant requirements, see 5.1.3 of GB5013.1-1997. 5-3-3 Insulation
The insulation coated on each conductor shall be IE1 type rubber mixture. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value in column 2 of Table 7. 5.3.4 Scrape tape
If the insulation is not extruded, the insulated wire core with a nominal conductor cross-section exceeding 4mm shall be wrapped with a layer of scrape tape in a spiral shape with an overlap of at least 1 mm.
If the insulation is extruded, it is optional for the conductor with a nominal cross-section exceeding 4mm2 to be wrapped with scraper tape. The scraper tape shall adhere to the insulation but shall be capable of being stripped without damaging the insulation. 5.3.5 The insulated cores and fillers (if any) of the cabled insulated cores shall be twisted together.
The filler may be placed in the middle of the cabled cores. In the case of insulated cores of conductors with large cross-sections, the braid may be wrapped around the cabled cores before extruding the sheath, provided that there are no substantial gaps in the external gaps between the insulated cores of the finished cable. 5.3.6 Sheath
The cabled cores shall be covered with a sheath.
The thickness of the sheath shall comply with the values ​​specified in columns 3, 4 and 5 of Table 7. The composition of the sheath is as follows:
5.3.6. 1 Single-core cable
The sheath shall be a single layer of SE4 type rubber compound. 5.3.6.2 Multicore cables
a) Section 10 mm2 and below;
One sheath is a single layer of SE4 rubber mixture. h) Section 10 mm\ and above:
The sheath may be a single layer of SE4 rubber mixture; one or two layers, the inner layer is SE3 rubber mixture and the outer layer is SE4 rubber mixture. ) Sheath intrusion into gaps:
In cases a) and b), the single-layer sheath or the inner layer of the double-layer sheath shall fill the gaps between the cable strands. The sheath shall be removable without damaging the cable strands. 5.3.7 Outside diameter
The average outside diameter shall be within the range specified in columns 6 and 7 of Table 7. 5.4 Tests
Compliance with the requirements of 5.3 shall be checked by the tests and tests specified in Table 8. Low temperature test should be for the cable with nominal conductor area of ​​16mm2 and below. 5.5 Guideline for use
When used with positive tape, the maximum temperature of the conductor is 60℃. Note: Other guidelines are under consideration.
Number of cores and nominal conductor section
1×185
1×300
1×400
GB5013.4—1997
Table 7245Dimensions of IEC66 (YCW) rubber sheathed flexible cableInsulation thickness
Specified value
Specified value of sheath thickness+mm
Average outer diameter
Number of cores and nominal conductor section
4×120
4×150
Insulation thickness
Specified value
GB 5013. 4—1997
Table 7 (end)
Specified values ​​of sheath thickness, mam
Table 8245Tests for IEC66 (YCW) rubber sheathed flexible cableTest items
Electrical performance test
Conductor voltage
2500V voltage test on insulation core
2500V voltage test on Weipin cable
Structural dimension inspection
Structural inspection
Insulation thickness measurement
Sheath thickness measurement
Outer diameter measurement
Average value
Roundness
Insulation mechanical properties
Tensile test before aging
Tensile test after air oven aging
Tensile test after oxygen bomb aging
Hot extension test
Sheath mechanical properties
Tensile test before aging
Tensile test after air oven aging
Test type
Average outer diameter
Test method
GB(GB/T)
5013.1 and 5013.2
Article number
Inspection and manual test
8. 1.3.1
Test items
Control force test after oil immersion
Hot extension test
Mechanical strength of finished cable
Bending test and water supply test after test
The test voltage of finished products with one core and below is
The test voltage of insulated core of cable with more than 2 cores is 2000V
Low temperature test (see 5.4)
Sheath bending test
Sheath elongation test"
GB 5013.4—1997
Table 8 (end)
Test type
1) Applicable only to cables with an outer diameter exceeding the limit specified in this test method, 6 Decorative circuits, fluorocarbon-containing cables or other equivalent synthetic elastomer sheathed cables 6.1 Model
Round cable: 245IEC58(YSF)
Flat cable: 245IEC58f(YSFB).
6.2 Rated voltage
300/500V.
6.3 Structure
6.3. 1 Conductor
Number of cores: 1 core or 2 Core.
Test method
GB(GB/T)
2951-5
Conductors shall comply with the requirements of the 5th conductor specified in GB/T3956-1997. Single wires may be tin-free or tin-coated. 6.3.2 Insulation layer
Document number
3. 1 and 2. 2
3. 1 and 2. 3
An insulation layer made of suitable materials may be coated on the outside of each conductor. For relevant requirements, see 5.1.3 of GB5013.1-1997. 6.3.3 Insulation
The insulation coated on the conductor shall be IE1 type rubber mixture. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value in the second column of Table 9. 6.3.4 Insulated core carbon cable
The two insulated cores of a 2-core cable shall be placed in parallel. The distance between the centers of the two conductors shall conform to the average values ​​in columns 3 and 4 of Table 9.
6.3.5 Sheath
The sheath covering the cabled core shall be a SE4 type rubber compound. For 2-core flat cables, the sheath shall fill the space between the wires to form a filler. The sheath thickness shall conform to the value specified in column 5 of Table 9. The sheath shall be able to be removed without damaging the insulated core. The preferred colors of the sheath are green and black. 6.3.6 Overall dimensions
CB 5013.4—1997
The average outer diameter of round cables and the average overall dimensions of flat cables shall be within the range specified in columns 6 and 7 of Table 9. 6.4 Test
The test and test specified in Table 10 shall be used to check whether the requirements of 6.3 are met. For the requirements of 6.3.5, the test procedure shall generally be in accordance with the provisions of 1.11 of GB5013.2-1997. The measured value shall be the distance between the centers of the conductors. The average value of the measured values ​​on three samples is called the average distance. 6.5 Use of shopping guide
Applicable to indoor and outdoor decorative circuits. During normal use, the maximum temperature of the conductor is 60°C. Table 9245 IEC58 (YSF) and 58f (YSFB) cable sizes Number of cores and conductors
Nominal flip
Insulation thickness
Specified value
Conductor center spacing
National lower limit
Average upper limit
Sheath thickness
Specified value
Average overall dimensions
0245 Tests for IEC58 (YSF) and 58F (YSFB) cables Table 10
Test items
Electrical performance test
Conductor resistance
Insulation core 2 0 V voltage test
Finished cable 2 000 V voltage test
Structural dimension inspection
Structural inspection
Insulation thickness measurement
Sheath friction measurement
Dimension measurement
Average value
Sustainability
Conductor center distance
Insulation mechanical properties
Tensile test before aging
Tensile test after air oven aging
Tensile test after oxygen bomb aging
Hot stretching Test saddle
Mechanical properties of sheath
Tensile test before aging
Tensile test after air oven aging
Resistance test after oil pressing
Hot extension test
Mechanical strength of finished cable
Bend test and test or product cable immersion in water
2000V voltage test
Test type
GB(GB/T)
5013.1 and 5013. 2
513.2 and this standard
2951-1
Article number
Inspection and manual test
8. 1. 3. 1
3. 1 and 2. 21 Model
Round cable: 245IEC58(YSF)
Flat cable: 245IEC58f(YSFB).
6.2 Rated voltage
300/500V.
6.3 Structure
6.3. 1 Conductor
Number of cores: 1 core or 2 cores.
Test method
GB(GB/T)
2951-5
Conductors should meet the requirements of GB/T3956-1997, the fifth type of conductors, and single wires can be tin-free or tin-coated. 6.3.2 Isolation layer
Document number
3. 1 and 2. 2
3. 1 and 2. 3
Each conductor may be coated with an isolation layer made of a suitable material. For relevant requirements, see 5.1.3 of GB5013.1-1997.6.3.3 Insulation
The insulation coated on the conductor shall be IE1 type rubber mixture. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value in column 2 of Table 9.6.3.4 Insulated core carbon cable
The two insulated cores of a 2-core cable shall be placed in parallel. The distance between the centers of the two conductors shall comply with the average value in columns 3 and 4 of Table 9.
6.3.5 Sheath
The sheath coated on the cable core shall be SE4 type rubber mixture. For 2-core flat cables, the expansion sheath shall fill the space between the wires to form a filling. The sheath thickness shall comply with the value specified in column 5 of Table 9. The sheath shall be able to be separated without damaging the insulated core. The preferred colors of the sheath are green and black. 6.3.6 Overall dimensions
CB 5013.4—1997
The average outer diameter of round cables and the average overall dimensions of flat cables shall be within the range specified in columns 6 and 7 of Table 9. 6.4 Tests
Compliance with the requirements of 6.3 shall be checked by the tests and tests specified in Table 10. For the requirements of 6.3.5, the test procedure shall generally be in accordance with 1.11 of GB5013.2—1997. The measured value shall be the distance between the centers of the conductors. The average value of the measured values ​​on three samples is called the average distance. 6.5 Use guide
Applicable to indoor and outdoor decorative circuits. During normal use, the maximum temperature of the conductor is 60°C. Table 9245 IEC58 (YSF) and 58f (YSFB) cable sizes Number of cores and conductors
Nominal flip
Insulation thickness
Specified value
Conductor center spacing
National lower limit
Average upper limitwwW.bzxz.Net
Sheath thickness
Specified value
Average overall dimensions
0245 Tests for IEC58 (YSF) and 58F (YSFB) cables Table 10
Test items
Electrical performance test
Conductor resistance
Insulation core 2 0 V voltage test
Finished cable 2 000 V voltage test
Structural dimension inspection
Structural inspection
Insulation thickness measurement
Sheath friction measurement
Dimension measurement
Average value
Sustainability
Conductor center distance
Insulation mechanical properties
Tensile test before aging
Tensile test after air oven aging
Tensile test after oxygen bomb aging
Hot stretching Test saddle
Mechanical properties of sheath
Tensile test before aging
Tensile test after air oven aging
Resistance test after oil pressing
Hot extension test
Mechanical strength of finished cable
Bend test and test or product cable immersion in water
2000V voltage test
Test type
GB(GB/T)
5013.1 and 5013. 2
513.2 and this standard
2951-1
Article number
Inspection and manual test
8. 1. 3. 1
3. 1 and 2. 21 Model
Round cable: 245IEC58(YSF)
Flat cable: 245IEC58f(YSFB).
6.2 Rated voltage
300/500V.
6.3 Structure
6.3. 1 Conductor
Number of cores: 1 core or 2 cores.
Test method
GB(GB/T)
2951-5
Conductors should meet the requirements of GB/T3956-1997, the fifth type of conductors, and single wires can be tin-free or tin-coated. 6.3.2 Isolation layer
Document number
3. 1 and 2. 2
3. 1 and 2. 3
Each conductor may be coated with an isolation layer made of a suitable material. For relevant requirements, see 5.1.3 of GB5013.1-1997.6.3.3 Insulation
The insulation coated on the conductor shall be IE1 type rubber mixture. If extrusion is not used, the insulation shall consist of at least two layers. The insulation thickness shall comply with the specified value in column 2 of Table 9.6.3.4 Insulated core carbon cable
The two insulated cores of a 2-core cable shall be placed in parallel. The distance between the centers of the two conductors shall comply with the average value in columns 3 and 4 of Table 9.
6.3.5 Sheath
The sheath coated on the cable core shall be SE4 type rubber mixture. For 2-core flat cables, the expansion sheath shall fill the space between the wires to form a filling. The sheath thickness shall comply with the value specified in column 5 of Table 9. The sheath shall be able to be separated without damaging the insulated core. The preferred colors of the sheath are green and black. 6.3.6 Overall dimensions
CB 5013.4—1997
The average outer diameter of round cables and the average overall dimensions of flat cables shall be within the range specified in columns 6 and 7 of Table 9. 6.4 Tests
Compliance with the requirements of 6.3 shall be checked by the tests and tests specified in Table 10. For the requirements of 6.3.5, the test procedure shall generally be in accordance with 1.11 of GB5013.2—1997. The measured value shall be the distance between the centers of the conductors. The average value of the measured values ​​on three samples is called the average distance. 6.5 Use guide
Applicable to indoor and outdoor decorative circuits. During normal use, the maximum temperature of the conductor is 60°C. Table 9245 IEC58 (YSF) and 58f (YSFB) cable sizes Number of cores and conductors
Nominal flip
Insulation thickness
Specified value
Conductor center spacing
National lower limit
Average upper limit
Sheath thickness
Specified value
Average overall dimensions
0245 Tests for IEC58 (YSF) and 58F (YSFB) cables Table 10
Test items
Electrical performance test
Conductor resistance
Insulation core 2 0 V voltage test
Finished cable 2 000 V voltage test
Structural dimension inspection
Structural inspection
Insulation thickness measurement
Sheath friction measurement
Dimension measurement
Average value
Sustainability
Conductor center distance
Insulation mechanical properties
Tensile test before aging
Tensile test after air oven aging
Tensile test after oxygen bomb aging
Hot stretching Test saddle
Mechanical properties of sheath
Tensile test before aging
Tensile test after air oven aging
Resistance test after oil pressing
Hot extension test
Mechanical strength of finished cable
Bend test and test or product cable immersion in water
2000V voltage test
Test type
GB(GB/T)
5013.1 and 5013. 2
513.2 and this standard
2951-1
Article number
Inspection and manual test
8. 1. 3. 1
3. 1 and 2. 2
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