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JB 8734.5-1998 Polyvinyl chloride insulated cables, wires and cords of rated voltage 450/750V and below Part 5: Shielded wires
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Standard ID:
JB 8734.5-1998
Standard Name: Polyvinyl chloride insulated cables, wires and cords of rated voltage 450/750V and below Part 5: Shielded wires
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
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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℃bZxz.net 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 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 Tip: This standard content only shows part of the intercepted content of the complete standard. 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