JB/T 8734.2-2016 (JB/T 8734.2-2012) PDF EnglishUS$120.00 · In stock · Download in 9 seconds
JB/T 8734.2-2012: Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750 V - Part 2: Insulated cables and wires for fixed wiring Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Obsolete JB/T 8734.2: Historical versions
Similar standardsJB/T 8734.2-2012: Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750 V - Part 2: Insulated cables and wires for fixed wiring---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JBT8734.2-2012 JB/T8723.2‐2012 JB ICS 29.060.20 K 13 Record No.. 36477-2012 INDUSTRY STANDARD Replacing JB/T 8734.2-1998 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 2.Insulated cables and wires for fixed wiring Issued on: MAY 24, 2012 Implemented on: NOVEMBER 01, 2012 Issued by. Ministry of Industry and Information Technology of the People’s Republic of China Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Operating characteristics... 6 4 Models... 6 5 Specifications... 7 6 Technical requirements... 7 6.1 General principle... 7 6.2 Conductor... 7 6.3 Insulation... 7 6.4 Insulated core cabling... 7 6.5 Sheath... 7 6.6 Appearance dimension... 8 7 Inspection... 11ForewordJB/T 8734 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V consists of 6 parts as follows. — Part 1.General requirements; — Part 2.Insulated cables and wires for fixed wiring; — Part 3.Cords and cables for connecting; — Part 4.Insulated wires for internal wiring of equipment; — Part 5.Screened wires; — Part 6.Lift cables. This is part 2 of JB/T 8734. This part is drafted according to the rules specified in GB/T 1.1-2009. This part will replace JB/T 8734.2-1998 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V Part 2.Insulated cables and wires for fixed wiring. Compared with JB/T 8734.2-1998, main technical changes of this part are as follows. — Change the chapter’s name and relevant reference standards in Normative References (see Chapter 2; Chapter 2 in 1998 edition); — Add the nominal cross-section area and corresponding requirements for cable conductor (see Table 2; Table 5 and Table 6); — Change the upper limit of BVR cables with nominal cross-section areas of 10 mm² and 16 mm² (see Table 5; Table 5 in 1998 edition). This part was proposed by China Machinery Industry Federation. This Standard shall be under the jurisdiction of National Technical Committee (SAC/TC213) on Wire and Cables of Standardization Administration of China. The responsible drafting organization of this part. Shanghai Cable Research Institute. The participating drafting organizations of this part. Baosheng Science and Technology Innovation Co., Ltd, Nanchang Cables Co., Ltd, Shanghai Nanyang-Fujikura Cable Co., Ltd, Shanghai Laogang Shenling Electric Cable Co., Ltd, Shenzhen Liajiaxiang Science & Technology Co., Ltd, Guangzhou Cable Factory, Kunming Cables Co., Ltd, Hunan Jinbei Cable Co., Ltd, Tianjin Jinshan Electric Wire & Cable Ltd, and ShangHai Panda Wire & Cable Co., Ltd. The main drafting staffs of this part. Lu Yanhong, Chen Jinmei, Yin Binxia, Xu Qiao, Gu Youming, Huang Donglian, He Shaoqing, He Wenjun, Ai Weimin, Zheng Guojun, Zhou Xiaorong, Xiao Jidong, Yan Yongchang, Ding Xiaoqing, and Wu Min. This standard replaces the following historical edition. — JB/T 8734.2-1998. Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 2. Insulated cables and wires for fixed wiring1 ScopeThis Part of JB/T 8734 specifies the operating characteristics, models, specifications, technical requirements, and inspection of cables and wires for fixed wiring. This Part applies to copper core or aluminum core polyvinyl chloride insulated cables and wires that are used in AC rated voltage U0/U up to and including 450/750V.2 Normative referencesThe articles contained in the following documents have become part of this document when they are quoted herein. For the dated documents so quoted, all the modifications (Including all corrections) or revisions made thereafter shall be applicable to this document. GB/T 2951.11-2008 Common test methods for insulating and sheathing materials of electric and optical cables - Part 11.Methods for general application - Measurement of thickness and overall dimensions - Tests for determining the mechanical properties GB/T 2951.12-2008 Common test methods for insulating and sheathing materials of electric and optical cables - Part 12.Methods for general application - Thermal ageing methods GB/T 2951.14-2008 Common test methods for insulating and sheathing materials of electric and optical cables - Part 14.Methods for general application - Test at low temperature GB/T 2951.31-2008 Common test methods for insulating and sheathing materials of electric and optical cables - Part 31.Methods specific to PVC compounds - Pressure test at high temperature - Test for resistance to cracking GB/T 2951.32-2008 Common test methods for insulating and sheathing materials of electric and optical cables - Part 32.Methods specific to PVC compounds - Loss of mass test - Thermal stability test GB/T 5023.2-2008 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V - Part 2.Test methods GB/T 18380.12-2008 Test on electric and optical fibre cables under fire conditions - Part 12.Test for vertical flame propagation for a single insulated wire or cable - Procedure for 1kW pre-mixed flame JB/T 8734.1-2012 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 1.General requirements3 Operating characteristics3.1 The rated voltages U0/U of wires and cables are 450/750V and 300/500V. 3.2 Allowable long-term working temperature of all types of cables and wires shall not exceed 70°C. 3.3 Laying temperature of cables and wires shall not below 0°C. The allowable bending radius of cables and wires, with external diameter (D) of less than 25mm, shall be not less than 4D. And allowable bending radius of cables and wires, with external diameter (D) of 25mm or above, shall not be less than 6D.4 ModelsCables and wires’ models are shown in Table 1. Table 1 Models and names Models Names Primary usage BV Copper core polyvinyl chloride insulated wire Fixed wiring BLV Aluminum core polyvinyl chloride insulated cable Fixed wiring BVR Copper core polyvinyl chloride insulated flexible cable Flexible site is required during fixing the wires BVV Copper core polyvinyl chloride insulated polyvinyl chloride sheathed round cable Fixed wiring BLVV Aluminum core polyvinyl chloride insulated polyvinyl chloride sheathed round cable Fixed wiring BVVB Copper core polyvinyl chloride insulated polyvinyl chloride sheathed flat cable Fixed wiring BLVVB Aluminum core polyvinyl chloride insulated polyvinyl chloride sheathed flat cable Fixed wiring5 SpecificationsSpecifications of cables and wires are shown in Table 2. Table 2 Specifications Models Rated voltage V Core number Nominal sectional area of conductor with the unit of mm2 Structural parameters table number BV 300/500 1 0.75-1.0 Table 3 BLV 450/750 1 2.5-400 Table 4 BVR 450/750 1 0.75-185 Table 5 BVV 300/500 1 0.75-185 Table 6 BLVV 300/500 1 2.5-185 Table 6 BVVB 300/500 2-3 0.75-10 Table 7 BLVVB 300/500 2-3 2.5-10 Table 76 Technical requirements6.1 General principle In addition to comply with the technical requirements specified in this part, the cables and wires shall also comply with the provisions of JB/T 8734.1-2012. 6.2 Conductor Core number and structure of conductor shall comply with the provisions in Table 3 - Table 7. 6.3 Insulation The insulation wrapped on the conductor shall be polyvinyl chloride compound with code of PVC/C. Insulation thickness shall comply with the provisions of Table 3 - Table 7. Insulation resistance shall not be less than the values specified in Table 3 - Table 7. 6.4 Insulated core cabling Insulated core of flat cable shall be placed in parallel. 6.5 Sheath The sheath wrapped on the insulation or finished cable core shall be polyvinyl chloride compound with code of PVC/ST4. cables - low temperature shock test 7 Thermal shock test 7.1 Insulation T T T T T GB/T 2951.31-2008 9.1 7.2 Sheath - - - T T GB/T 2951.31-2008 9.2 8 Flame non-propagation test T T T T T GB/T 18380.12-2008 9 Mark - rubbing resistance inspection T, S T, S T, S T, S T, S GB/T 5023.2-2008 1.8 ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
