JB/T 8734.5-2016 English PDF

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JB/T 8734.5-2016: Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 5: Screened wires
Status: Valid

JB/T 8734.5: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JB/T 8734.5-2016	299	Add to Cart	3 days	Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 5: Screened wires	Valid
JB/T 8734.5-2012	160	Add to Cart	Auto, < 3 mins	Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750 V - Part 5: Screened wires	Obsolete
JB/T 8734.5-1998	279	Add to Cart	3 days	Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V. Part 5: Screened wires	Obsolete

Similar standards

GB/T 9330   GB/T 6995.5   JB/T 8734.2   JB/T 8734.3   JB/T 8734.1   

Basic data

Standard ID: JB/T 8734.5-2016 (JB/T8734.5-2016)
Description (Translated English): Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 5: Screened wires
Sector / Industry: Mechanical & Machinery Industry Standard (Recommended)
Classification of Chinese Standard: K13
Classification of International Standard: 29.060.20
Word Count Estimation: 13,186
Date of Issue: 2016-04-05
Date of Implementation: 2016-09-01
Older Standard (superseded by this standard): JB/T 8734.5-2012
Regulation (derived from): The Ministry of Industry and Notice No. 2016 in 2016; industry standard filing notice 2016 No. 8 (total No. 200)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the type, specification, technical requirements and inspection of shielded wire and cable.

JB/T 8734.5-2012 Translated English of Chinese Standard. JB/T8734.5‐2012  JB ICS 29.060.20 K 13 Record No.. 36480-2012 INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Replacing JB/T 8734.5-1998 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 5. Screened wires ISSUED ON. MAY 24, 2012 IMPLEMENTED ON. NOVEMBER 1, 2012 Issued by. Ministry of Industry and Information Technology of the People’s Republic of China

Table of Contents

Foreword ... 3  1  Scope ... 5  2  Normative references ... 5  3  Operational characteristics ... 6  4  Models ... 6  5  Specifications ... 7  6  Technical requirements ... 7  6.1  General principles ... 7  6.2  Conductor ... 8  6.3  Insulation ... 8  6.4  Insulated core cabling ... 8  6.5  Screening ... 8  6.6  Sheath ... 9  6.7  Appearance dimension ... 9  7  Inspection ... 15 

Foreword

JB/T 8734 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V consists of six parts. — Part 1. General provision; — Part 2. Cables and wires used for fixed wirings; — Part 3. Flexible wires and flexible cables used for connection; — Part 4. Wires for internal wiring; — Part 5. Screened wires; — Part 6. Elevator cable. This part is Part 5 of JB/T 8734. This part is drafted according to the rules specified in GB/T 1.1-2009. This part replaces JB/T 8734.5-1998 Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 5. Screened wires. Compared with JB/T 8734.5-1998, main technical changes of this part are as follows. — Modify the chapter name and relating reference standards of the Normative Reference (See Chapter 2, 1988 version); — Add the RVVPS-type cable models (see Table 1); — Add the RVVPS-type cable models (See Table 2); — Add the specifications and corresponding requirements for RVVP-type and RVVP1-type cables (See Table 2 and Table 6); — Add the technical requirements for RVVPS-type cables (see Table 7); — Add the requirements for RVVPS-type cable’s pitch (See 6.7); — Add the requirements for the inspection of RVVPS-type cables (See Table 8). This part was proposed by China Machinery Industry Federation. This part shall be centralized by National Committee on Wire and Cables of Standardization Administration of China (SAC/TC213). The responsible drafting organization of this part. Shanghai Electric Cable Research Institute. The participating drafting organizations of this part. Shanghai Electric Cable Research Institute, Shenzhen Lian Jia Xiang Technology Co., Ltd., Shanghai Nanyang-Fujikura Cable Co., Ltd., Tianjin Jinshan Electric Wire & Cable Co., Ltd., Kunming Cable Co., Ltd., Guangzhou Cable Works Company Limited., Hunan Jinbei Cable Co., Ltd., Shanghai Panda Wire & Cable Co., Ltd., Baosheng Science and Technology Innovation Co., Ltd., Nanchang Cable Co., Ltd., and Shanghai Laogang Shenling Electronic Cable Co., Ltd. Main drafters of this Part. Lu Yanhong, Huang Donglian, Xu Qiao, Zheng Guojun, He Wenjun, He Shaoqing, Ai Weimin, Zhou Xiaorong, Chen Jin, Yin Binxia, Gu Youming, Xiao Jidong, Yan Yongchang, Ding Xiaoqing, and Wu Min. The previous version replaced by this Part is as follows. — JB/T 8734.5-1998. Polyvinyl chloride insulated cables and wires and cords of rated voltages up to and including 450/750V - Part 5. Screened wires

Scope

This Part of JB/T 8734 specifies the operating characteristics, models, specifications, technical requirements and inspection of screened wires and cables. This Part applies to copper core polyvinyl chloride insulated screened wires that are used in electric appliance, instrument, electronic equipment and automation equipment of AC rated voltage U0/U up to and including 300/300V.

Normative References

The 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 2951.13-2008 Common test methods for insulating and sheathing materials of electric and optical cables - Part 13. Methods for general application - Measurement for determining the density - Water absorption tests - Shrinkage test 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 GB/T 18380.22-2008 Tests on electric and optical fibre cables under fire conditions - Part 22. Test for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion 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 requirements 3 Operational characteristics 3.1 The rated voltage U0/U of wires and cables is 300/300V. 3.2 Allowable long-term working temperature of AVP-90, RVP-90 type wires and cables shall not exceed 90°C. Allowable long-term working temperature of other types wires and cables shall not exceed 70°C. Note. When the operating environment of wires can prevent thermoplastic flow and allow reducing insulation resistance, for the polyvinyl chloride compound which can be used continuously at 90°C, its working temperature can be increased to 105°C, on the premise of shortening the total working hours. 4 Models Wires and cables’ models are shown in Table 1. 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 the following codes. — PVC/E. AVP-90, RVP-90-type wires; — PVC/C. AVP-type wires; — PVC/D. Other models of wires and cables. Insulation thickness shall comply with the values specified in Table 3 - Table 7. Insulation resistance shall not be less than the values specified in Table 3 - Table 7. 6.4 Insulated core cabling An insulated core of 2-core-and-above round wires shall be twisted into cable. The outermost layer is twisted to right direction. Finished cable’s interspace can be separately filled or filled with sheath, but any filler shall not adhere to the insulation cores. 6.5 Screening 6.5.1 AVP, RVP and AVP-90, RVP-90 type wires are windingly-screened with tinned flexible round copper wires. Diameter of tinned round copper wires shall comply with provisions in Table 3 and Table 4. 6.5.2 RVVP and RVVPS type cables are windingly-screened with flexible round copper wires or tinned flexible round copper wires. RVVP1 type cables are windingly-screened with flexible round copper wires or tinned flexible round copper wires. Diameter of flexible round copper wires or tinned flexible round copper wires shall comply with the provisions of Table 5, 6 and 7. The winding-screening of single-core wire adopts single-layer and right-direction uniform winding. For wires with 2-core-or-above, its winding screening shall be double-layers and reverse-direction... ......

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