JB/T 8734.5-1998 This standard is a supplement to GB 5023.-~5023.7-1997 "Polyvinyl chloride insulated cables with rated voltages of 450/750V and below". The main technical parameters, basic test conditions and performance indicators of the products in this standard are in line with the provisions of GB 5023.1~5023.7-1997. This standard specifies the models, specifications, technical requirements and inspections of shielded wires. This standard applies to copper core polyvinyl chloride insulated shielded wires for household appliances, instruments and automation devices with an AC rated voltage U0/U of 300/300V and below. In addition to meeting the technical requirements specified in this standard, the wires should also meet the requirements of JB 8734.1. JB 8734.5-1998 Polyvinyl chloride insulated cables, wires and cords of rated voltage 450/750V and below Part 5: Shielded wires JB8734.5-1998 Standard download decompression password: www.bzxz.net

JB8734.18734.51998
This standard is a supplement to GB5023.15023.7-1997 "Polyvinyl chloride insulated cables with rated voltages of 450/750V and below". The products covered by this standard were originally specified in GB5023.1~5023.3-85 and GB5023.4~5023.5-86, but GB5023.1~5023.3-85 and GB5023.4~5203.5-86 have been revised. The revised GB5023.1~5023.7-1997 is equivalent to using Parts 1 to 7 of the IEC227 standard. Therefore, some products have not been included despite the demand for export trade in the domestic market. The main technical parameters, basic test conditions and performance indicators of the products in this standard are consistent with the provisions of GB5023.1~5023.7--1997.
This standard is proposed and managed by the National Wire and Cable Standardization Technical Committee. The drafting unit of this standard is Shanghai Electric Relay Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Wu Zengquan and Zhu Cuizhen. 1 Scope
Machinery Industry Standard of the People's Republic of China
Rated voltage 450/750V and below
Polyvinyl chloride insulated cables and wires and cords
Part 5: Screened wires
Polyvinyl chloride insulated cables and wires and cordsof rated voltages up to and including 450/750 VPart 5, Screened wires
This standard specifies the models, specifications, technical requirements and inspections of screened wires. JB8734.5—1998
This standard applies to copper core polyvinyl chloride insulated screened wires used in electrical appliances, instruments and electronic equipment and automation devices with an AC rated voltage U./U of 300/300V and below.
In addition to meeting the technical requirements of this standard, the wires shall also meet the requirements of JB8734.1. Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, 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---1997
GB 5023.2—1997
GB12666.2-1990
JB 8734.1--1998
3 Usage characteristics
General test methods for cable insulation and sheath materials PVC insulated cables with rated voltage of 450/750V and below Cable combustion test methods Part 2: Vertical combustion test methods for single wires and cables PVC insulated cables, wires and cords with rated voltage of 450/750V and below Part 1: General provisions
3.1 The rated voltage U./U of the wire is 300/300V3.2 The long-term allowable operating temperature of AVP-90 and RVP-90 wires shall not exceed 90℃, and the long-term allowable operating temperature of other types of wires shall not exceed 70℃.
Note: When the environment in which the wire is used can prevent thermoplastic flow and allow the insulation resistance to be reduced, the PVC mixture that can be used continuously at 90°C can increase its working temperature to 105°C under the premise of shortening the total working time. 4 Models
The models of the wires are shown in Table 1.
Approved by the Ministry of Machinery Industry on May 28, 1998
Implementation on November 1, 1998
RVP--90
AVP--90
5 Specifications
JB 8734. 5-1998
Table 1 Models and names
Copper core polyvinyl insulated shielded wire for installation core polyoxyethylene insulated shielded soft wire
Core polyvinyl chloride insulation, shielded. PVC sheathed soft electric core PVC insulation, spiral shielding, polyoxyethylene sheathed soft electric rope core heat-resistant 90℃ PVC insulation shielded soft wire copper core heat-resistant 90℃ PVC insulation shielded wire for installation The specifications of the wires are shown in Table 2.
AVP, AVP-90
RVP.RVP-90
RVVP,RVVP1
Rated voltage
300/300
300/300
300/300
Table 2 Specifications
#) Core number series, 4, 5, 6, 7, 10, 12, 14, 16, 19 and 24 cores, 6 Technical requirements
6.1 Conductor
The number and structure of the conductor cores shall comply with the provisions of Tables 3 to 6. 6.2 Insulation
The insulation extruded on the conductor shall be a polyvinyl chloride mixture with the following codes. PVC/E—AVP---90.RVP—90 type wirePVC/C—AVP type wire
PVC/D—other types of wires
The insulation thickness shall comply with the provisions of Table 3 to Table 6. The insulation resistance shall not be less than the specified values ​​in Table 3 to Table 6. 6.3 Insulated core cabling
Nominal cross section
0. 08~2. 5
0. 08~~1.5
0.12-~1. 5
The insulated cores of round cables with two or more cores shall be twisted into cables, and the outermost layer shall be twisted in the right direction. The cabling can be filled separately or with a sheath, but any filler shall not adhere to the insulated core. 6.4 Shielding
Structural parameter table number
6.4.1AVP, RVP and AVP-90, RVP-90 type wires are braided with tinned soft round copper wires for shielding. The diameter of tinned round steel wires shall comply with the provisions of Table 3 and Table 4.
6.4.2RVVP type cables are braided with soft round copper wires or tinned soft round copper wires for shielding, and RVVP1 type cables are wound with soft round copper wires or tinned soft round copper wires for shielding. The diameters of soft round copper wires and tinned soft round copper wires shall comply with the provisions of Table 5 and Table 6. The wound shielding of single-core wires is single-layer and wound evenly in the right direction. The wound shielding of wires with two or more cores is double-layer and wound evenly in the opposite direction (first left and then right).
6.4.3 It is allowed to wrap film tape before and after applying the shielding. 6.5 Sheath
JB 8734. 51998
The sheath extruded on the shield or tape shall be a polyvinyl chloride mixture with code name ST5. The thickness of the sheath shall comply with the provisions of Table 5 and Table 6. 6.6 Dimensions
The average outer diameter or dimension of the shielded wire shall comply with the provisions of Table 3 to Table 6. 7 Inspection
The product inspection items, test types and test methods shall be in accordance with the provisions of Table 7. Table 3 AVP, AVP-90 type 300/300V copper core PVC insulated shielded wire for installation Nominal cross-section of conductor
Solid conductor
Insulation thickness
Specified value
Shielding layer single "average outer diameter
Wire diameter
Maximum value of conductor resistance at 20℃
Tinned copper core
At 70℃ or 90℃
Minimum value of insulation resistance
Table 4 RVP type and RVP-90 type 300/300V copper core PVC insulated shielded flexible wire core number ×
Nominal cross-section
Conductor Single wire in the conductor
Maximum diameter
Insulation thickness
Specified value
Shielding layer
Single wire diameter
Average outer diameter
Or shape
Size upper limit
Maximum value of conductor resistance at 20℃
Tinned copper core
Insulation resistance at 70℃ or 90℃
Minimum value
Mo·km
Number of cores×
Standard cross section
Single wire in the conductor
Maximum diameter
Insulation thickness
Specified value
JB 8734.5-1998
Table 4 (end)
Screen knocking layer
Single wire diameter
Average outer diameter
Or shape
Upper limit of size
Maximum value of conductor resistance at 20℃
Tinned copper core
At 70℃ or 90℃
Insulation resistance
Minimum value
Mo·km
Table 5RVVP type and RVVP1 type 300/300V copper core PVC insulated shielded PVC sheathed flexible wire average outer diameter
Number of cores×
Nominal cross section
Appropriate single wire insulation thickness
Maximum diameter
Specified value
Shielding layer||t t||Single wire diameter
Sheath thickness
Specified value
Conductor
Maximum resistance at 20℃
Core tinned copper core
At 70℃
Insulation resistance
Minimum value
RVVP and RVVP1 300/300V copper core PVC insulated shielded PVC sheathed flexible wire Table 6
Single wire insulation thickness in conductor
Number of cores×
Nominal cross section
Maximum diameter
Specified value
Shielding layer
Single wire diameter
Sheath thickness
Specified value
Average outer diameter or overall dimension
4.0× 6. 1
3. 6× 5. 3
Conductor
Maximum resistance at 20℃
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Mo·km
Number of cores×
Nominal cross section
6~~7×0.12
Single wire in conductor:
Insulation thickness
Maximum diameter
Specified value
Screen knocking layer
Single wire diameter
JB 8734.5-1998
Table 6 (continued)
Sheath thickness
Specified value
Average outer diameter or overall dimensions
Conductor at 20℃
Maximum resistance
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Number of cores ×
Nominal cross section
Insulation thickness of single wire in conductor
Maximum diameter
Specified value
Inspection items
Electrical performance test
Conductor resistance
Finished cable voltage test
Shielding layer
Single wire diameter
Insulation thickness 0.6mm and below: 1500V
Insulation thickness 0.6mm and above: 2000V
Insulation core voltage test
Insulation thickness 0.6mm and below: 1500V
Insulation thickness 0.6mm and above: 2000V
Insulation resistance
Structural dimension inspection
Structural inspection
Conductor continuity test
Insulation thickness
Sheath thickness
Outer diameter or overall dimensions
Glycerol content
Braiding (or winding) density
Insulation mechanical properties
Tensile test before aging
Tensile test after aging
JB 8734. 5—1998
Table 6 (end)
Sheath thickness
Specified value
Average outer diameter or overall dimensions
Table 7 Test
Test type
RVVP, RVVPI
RVP—90
Conductor at 20℃
Maximum resistance
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Test method
2.1 of GB5023.2—1997
2.2 of GB5023.2—1997
2.2 of CB5023.2—1997
GB5023 .2—2.3 of 1997
GB5023.2—2.3 of 1997
GB5023.2--2.4 of 1997
GB5023.2—2.4 of 1997
Normal self-inspection
JB8734.1—5.5 of 1998
GB5023.2—1.9 of 1997
GB5023.2—1.10 of 1997
GB 1.11 of GB 5023.2-1997
1.11 of GB 5023.2-1997
Visual inspection and micrometer
GB/T 2951.1-1997, 9, 1
GB/T 2951.2--1997, 8. 1. 3. 1 and 9.1 of GB/T2951.1-1997
Test items
Weight loss test
Insulation heat shrinkage test
Sheath mechanical properties
Tensile test before aging
Tensile test after aging
Weight loss test
High temperature pressure test
Low temperature elasticity and impact strength
Low temperature bending test for insulation
Low temperature bending test for sheath
Low temperature tensile test for sheath
Low temperature impact test for finished cable
Thermal shock test
Non-flame retardation test
Marking abrasion resistance test
JB 8734. 5--1998
Table 7 (end)
Test type
RVVP, VVPI
AVP--90
RVP--90
Test method
8.1 of GB/T 2951.7—1997
10 of GB/T 2951.3—1997
9.2 of GB/T 2951.11997
8.1.3.1 of GB/T 2951.2—1997 and 9.2 of GB/T 2951.1—1997
8.2 of GB/T 2951.7—1997
GB/T 2951.6—1997 8-1
GB/T 2951.6—8.2 of 1997
GB/T 2951. 4—8. 1 of 1997
GB/T 2951. 4—8. 2 of 1997
GB/T 2951.4—8.4 of 1997
GB/T2951.6—8.5 of 1997
GB/T 2951. 6—9. 1 of 1997
GB/T2951.6—9.2 of 1997
GB12666.2
GB5023.2—1.8 of 19975-1998
Table 6 (continued)
Sheath thickness
Specified value
Average outer diameter or overall dimensions
Conductor at 20℃
Maximum resistance
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Number of cores ×
Nominal cross section
Insulation thickness of single wire in conductor
Maximum diameter
Specified value
Inspection items
Electrical performance test
Conductor resistance
Finished cable voltage test
Shielding layer
Single wire diameter
Insulation thickness 0. 6mm and below: 1500V
Insulation thickness 0.6mm and above: 2000V
Insulation core voltage test
Insulation thickness 0.6mm and below: 1500V
Insulation thickness 0.6mm and above: 2000V
Insulation resistance
Structural dimension inspection
Structural inspection
Conductor continuity test
Insulation thickness
Sheath thickness
Outer diameter or overall dimensions
Bacteria content
Braiding (or winding) density
Insulation mechanical properties
Tensile test before aging
Tensile test after aging
JB 8734. 5—1998wwW.bzxz.Net
Table 6 (end)
Sheath thickness
Specified value
Average outer diameter or overall dimensions
Table 7 Test
Test type
RVVP, RVVPI
RVP—90
Conductor at 20℃
Maximum resistance
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Test method
2.1 of GB5023.2—1997
2.2 of GB5023.2—1997
2.2 of CB5023.2—1997
GB5023 .2—2.3 of 1997
GB5023.2—2.3 of 1997
GB5023.2--2.4 of 1997
GB5023.2—2.4 of 1997
Normal self-inspection
JB8734.1—5.5 of 1998
GB5023.2—1.9 of 1997
GB5023.2—1.10 of 1997
GB 1.11 of GB 5023.2-1997
1.11 of GB 5023.2-1997
Visual inspection and micrometer
GB/T 2951.1-1997, 9, 1
GB/T 2951.2--1997, 8. 1. 3. 1 and 9.1 of GB/T2951.1-1997
Test items
Weight loss test
Insulation heat shrinkage test
Sheath mechanical properties
Tensile test before aging
Tensile test after aging
Weight loss test
High temperature pressure test
Low temperature elasticity and impact strength
Low temperature bending test for insulation
Low temperature bending test for sheath
Low temperature tensile test for sheath
Low temperature impact test for finished cable
Thermal shock test
Non-flame retardation test
Marking abrasion resistance test
JB 8734. 5--1998
Table 7 (end)
Test type
RVVP, VVPI
AVP--90
RVP--90
Test method
8.1 of GB/T 2951.7—1997
10 of GB/T 2951.3—1997
9.2 of GB/T 2951.11997
8.1.3.1 of GB/T 2951.2—1997 and 9.2 of GB/T 2951.1—1997
8.2 of GB/T 2951.7—1997
GB/T 2951.6—1997 8-1
GB/T 2951.6—8.2 of 1997
GB/T 2951. 4—8. 1 of 1997
GB/T 2951. 4—8. 2 of 1997
GB/T 2951.4—8.4 of 1997
GB/T2951.6—8.5 of 1997
GB/T 2951. 6—9. 1 of 1997
GB/T2951.6—9.2 of 1997
GB12666.2
GB5023.2—1.8 of 19975-1998
Table 6 (continued)
Sheath thickness
Specified value
Average outer diameter or overall dimensions
Conductor at 20℃
Maximum resistance
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Number of cores ×
Nominal cross section
Insulation thickness of single wire in conductor
Maximum diameter
Specified value
Inspection items
Electrical performance test
Conductor resistance
Finished cable voltage test
Shielding layer
Single wire diameter
Insulation thickness 0. 6mm and below: 1500V
Insulation thickness 0.6mm and above: 2000V
Insulation core voltage test
Insulation thickness 0.6mm and below: 1500V
Insulation thickness 0.6mm and above: 2000V
Insulation resistance
Structural dimension inspection
Structural inspection
Conductor continuity test
Insulation thickness
Sheath thickness
Outer diameter or overall dimensions
Bacteria content
Braiding (or winding) density
Insulation mechanical properties
Tensile test before aging
Tensile test after aging
JB 8734. 5—1998
Table 6 (end)
Sheath thickness
Specified value
Average outer diameter or overall dimensions
Table 7 Test
Test type
RVVP, RVVPI
RVP—90
Conductor at 20℃
Maximum resistance
Tinned copper core
At 70℃
Insulation resistance
Minimum value
Test method
2.1 of GB5023.2—1997
2.2 of GB5023.2—1997
2.2 of CB5023.2—1997
GB5023 .2—2.3 of 1997
GB5023.2—2.3 of 1997
GB5023.2--2.4 of 1997
GB5023.2—2.4 of 1997
Normal self-inspection
JB8734.1—5.5 of 1998
GB5023.2—1.9 of 1997
GB5023.2—1.10 of 1997
GB 1.11 of GB 5023.2-1997
1.11 of GB 5023.2-1997
Visual inspection and micrometer
GB/T 2951.1-1997, 9, 1
GB/T 2951.2--1997, 8. 1. 3. 1 and 9.1 of GB/T2951.1-1997
Test items
Weight loss test
Insulation heat shrinkage test
Sheath mechanical properties
Tensile test before aging
Tensile test after aging
Weight loss test
High temperature pressure test
Low temperature elasticity and impact strength
Low temperature bending test for insulation
Low temperature bending test for sheath
Low temperature tensile test for sheath
Low temperature impact test for finished cable
Thermal shock test
Non-flame retardation test
Marking abrasion resistance test
JB 8734. 5--1998
Table 7 (end)
Test type
RVVP, VVPI
AVP--90
RVP--90
Test method
8.1 of GB/T 2951.7—1997
10 of GB/T 2951.3—1997
9.2 of GB/T 2951.11997
8.1.3.1 of GB/T 2951.2—1997 and 9.2 of GB/T 2951.1—1997
8.2 of GB/T 2951.7—1997
GB/T 2951.6—1997 8-1
GB/T 2951.6—8.2 of 1997
GB/T 2951. 4—8. 1 of 1997
GB/T 2951. 4—8. 2 of 1997
GB/T 2951.4—8.4 of 1997
GB/T2951.6—8.5 of 1997
GB/T 2951. 6—9. 1 of 1997
GB/T2951.6—9.2 of 1997
GB12666.2
GB5023.2—1.8 of 1997VVPI
AVP--90
RVP--90
Test method
GB/T2951.7—19978.1
GB/T2951.3—199710
GB/T2951.119979.2
GB/T 2951.2—19978.1.3.1 and GB/T 2951.1—19979.2
GB/T 2951.7—19978.2
GB/T 2951.6—19978.2
GB/T 2951.4---8.1 of 1997
GB/T 2951.4--8.2 of 1997
GB/T 2951.4—8.4 of 1997
GB/T2951.6—8.5 of 1997
GB/T 2951.6--9.1 of 1997
GB/T2951.6--9.2 of 1997
GB12666.2
GB5023.2—1.8 of 1997VVPI
AVP--90
RVP--90
Test method
GB/T2951.7—19978.1
GB/T2951.3—199710
GB/T2951.119979.2
GB/T 2951.2—19978.1.3.1 and GB/T 2951.1—19979.2
GB/T 2951.7—19978.2
GB/T 2951.6—19978.2
GB/T 2951.4---8.1 of 1997
GB/T 2951.4--8.2 of 1997
GB/T 2951.4—8.4 of 1997
GB/T2951.6—8.5 of 1997
GB/T 2951.6--9.1 of 1997
GB/T2951.6--9.2 of 1997
GB12666.2
GB5023.2—1.8 of 1997
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