GB/T 12972.1-2008 English PDF

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GB/T 12972.1-2008: Flexible rubber-sheathed cables for mining purposes -- Part 1: General requirements
Status: Valid

GB/T 12972.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12972.1-2008	439	Add to Cart	4 days	Flexible rubber-sheathed cables for mining purposes -- Part 1: General requirements	Valid
GB 12972.1-1991	639	Add to Cart	5 days	Flexible rubber-sheathed cables for mining purposes--Part 1: General	Obsolete

Similar standards

GB/T 12706.3   GB/T 12706.1   GB/T 12706.4   GB/T 12972.3   GB/T 12972.4   GB/T 12972.2   

Basic data

Standard ID: GB/T 12972.1-2008 (GB/T12972.1-2008)
Description (Translated English): Flexible rubber-sheathed cables for mining purposes -- Part 1: General requirements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K13
Classification of International Standard: 29.060.20
Word Count Estimation: 19,128
Date of Issue: 2008-06-30
Date of Implementation: 2009-04-01
Older Standard (superseded by this standard): GB 12972.1-1991
Quoted Standard: GB/T 2900.10-2001; GB/T 3048.8-2007; GB/T 3048.9-2007; GB/T 3048.12-2007; GB/T 3048.13-2007; GB/T 3956-1997; JB/T 8137-1999; YB/T 5294-2006
Regulation (derived from): Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the rubber-sheathed cables for mining product classifications, general technical requirements, test methods and inspection rules. This part is suitable for AC rated voltage U0/U is 6/10kV and below mine copper rubber insulated rubber sheathed flexible cable. This section should be separately with GB/T 12972 used together in subsequent sections.

GB/T 12972.1-2008: Flexible rubber-sheathed cables for mining purposes -- Part 1: General requirements

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Flexible rubber-sheathed cables for mining purposes Part 1. General requirements ICS 29.060.20 K13 National Standards of People's Republic of China Replacing GB 12972.1-1991 Mining rubber flexible cable Part 1. General requirements Posted 2008-06-30 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 12972 "mining rubber flexible cable" is divided into 10 parts. --- Part 1. General requirements; --- Part 2. Rated voltage 1.9/3.3kV and below Shearer flexible cables; --- Part 3. rated voltage of 0.66/1.14kV Shearer shielded monitor enhanced flexible cables; --- Part 4. Rated voltage 1.9/3.3kV and below Shearer metal shield soft cable; --- Part 5. rated voltage of 0.66/1.14kV and following mobile rubber soft cable; --- Part 6. Rated voltage 6/10kV and below the metal shield Flexible cables with monitoring; --- Part 7. rated voltage 6/10kV and below shielded rubber-sheathed cables; --- Part 8. Rated voltage 0.3/0.5kV drill cables; --- Part 9. Rated voltage 0.3/0.5kV light mine mobile rubber soft cable; --- Part 10. Miner 's cap lamp cords. This section GB/T 12972 Part 1. This Part replaces GB 12972.1-1991 "mining rubber-sheathed cables - Part 1. General requirements." This section compared with GB 12972.1-1991, the main changes are as follows. --- Conductor using GB/T 3956-1997 in the fifth conductor, to replace the original GB 3956-1983 third conductor structure and cancel it Table 1 edition (1991 version 4.1 and Table 1; edition 5.1); --- Increasing the rated voltage of 0.66/1.14kV and below unshielded insulated wire core flooding frequency AC voltage test (Excerpts 5.2.3); --- Increase the reinforcing layer of braided or wrap coverage density computing and regulations or woven wire wrapping technical requirements (5.5.3 Excerpts And 5.5.4); --- Remove the insulation resistance constant Ki value and the conversion formula, the cable insulation resistance value in each subsequent section provides (1991 version 11.3 And Table 7); --- Increasing the rated voltage 1.9/3.3kV and 6/10kV test voltage level (Excerpts 5.8.4 and Table 6); --- Remove the GB/T 12666.2 of the terms of the combustion test, specific test requirements specified in the subsequent parts (1991 version 11.6; Excerpts 5.8.5); --- Bending test method using a flat state to the "S" shaped state of the bending process simulation test (cable bending 9000), replace the original 3 Wheeled bending test (cable bending 18,000 times) (1991 version 11.8 and Appendix C; this edition 5.8.8 and Appendix D); --- Increased U0/U is 1.9/3.3kV capacitor dielectric value of water absorption test (edition of 5.8.13); --- Removed from the standard length of delivery specified in the agreement and without short length predetermined value (1991 version 11.12 and Table 9); --- Increase in transportation and storage requirements (edition 8); --- Increase in Appendix A "rubber insulation requirements" (Excerpts Appendix A). This section of the Appendix A, Appendix B, Appendix C, Appendix D, Appendix E Appendix F and normative appendix. This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Standardization Technical Committee Wire and Cable (SAC/TC213) centralized. This part of the unit responsible for drafting. Shanghai Electric Cable Research Institute. Participated in the drafting of this section. Fushun Branch of Coal Science Research Institute, Shanghai Shenghua Cable Group Co., Ltd., Shandong Luneng Taishan Qufu Special Species Cable Co., Ltd., Jiangsu Far East Cable Co., Ltd., Hebei, China-cable Manufacturing Co., Ltd. The main drafters of this section. Zeng Ji Gang, Tang Jiazi, Fu Bao Chan, Shen Kuang day, Xiaodong, Wang Chuanbin, Haoqing Fen. This part of the standard replaces the previous editions are. --- GB 1170-1974; --- GB 12972.1-1991. Mining rubber flexible cable Part 1. General requirements

1 Scope

This section GB/T 12972 specifies the mining rubber flexible cable product classification, general technical requirements, test methods and inspection rules. This part is applicable to the exchange rated voltage U0/U to 6/10kV and below mine copper core rubber insulated rubber sheathed flexible cable. This section should be separately and GB/T 12972 subsequent parts used in common.

2 Normative references

The following documents contain provisions which, through reference GB/T 12972 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 2900.10-2001 Electrotechnical terminology cable (idt IEC 60050-461. 1984) GB/T 3048.8-2007 electrical wire and cable performance test methods - Part 8. AC voltage test (IEC 60060-1. 1989, NEQ) GB/T 3048.9-2007 electrical wire and cable performance test methods - Part 9. spark test of insulated cores GB/T 3048.12-2007 wire and cable electrical performance test methods - Part 12. Partial discharge tests (IEC 60885-3. 1988, MOD) GB/T 3048.13-2007 wire and cable electrical performance test methods - Part 13. impulse voltage test (IEC 60230. 1966, IEC 60060-1. 1989, MOD) GB/T 3956-1997 cable conductor (idt IEC 60228. 1978) JB/T 8137-1999 (all parts) wire and cable delivery plate YB/T 5294-2006 general purpose low carbon steel wire

3 Terms and Definitions

This section uses terminology GB/T 2900.10-2001 explanation. 3.1 Rated voltage is the reference voltage cable design and electrical properties of the test, with U0/U, said unit kV. U0 represents any one main conductor insulation voltage rms "land" (metal shield, metal sleeve or surrounding medium) between and. U multi-core cable or single cable system in any twelve-phase RMS voltage between conductors. When the cable for AC system, rated voltage of cables should be at least equal to the rated voltage of the system, when used for DC voltage systems, Rated voltage of the system should be less than 1.5 times the rated voltage of the cable. System operating voltage should not exceed 1.1 times the rated voltage of the system. 3.2 Type test is a test on normal commercial principles of a model of the cable standards and regulations before the supply carried out to prove that a cable ......

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