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GB/T 12976.2-2008: Paper-insulated power cables and their accessories with rated voltages up to and including 35kV -- Part 2: General and construction requirements for power cables with rated voltages 35kV
Status: Valid GB/T 12976.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12976.2-2008 | English | 419 |
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Paper-insulated power cables and their accessories with rated voltages up to and including 35kV -- Part 2: General and construction requirements for power cables with rated voltages 35kV
| Valid |
GB/T 12976.2-2008
|
| GB/T 12976.2-1991 | English | 239 |
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Copper or aluminium conductor paper-insulated power cables with rated voltages up to 35kV--Part 2: Non-draining oil impregnated paper-insulated matal-sheathed power cables
| Obsolete |
GB/T 12976.2-1991
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PDF similar to GB/T 12976.2-2008
Basic data | Standard ID | GB/T 12976.2-2008 (GB/T12976.2-2008) | | Description (Translated English) | Paper-insulated power cables and their accessories with rated voltages up to and including 35kV -- Part 2: General and construction requirements for power cables with rated voltages 35kV | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K13 | | Classification of International Standard | 29.060.20 | | Word Count Estimation | 18,165 | | Date of Issue | 2008-06-30 | | Date of Implementation | 2009-04-01 | | Older Standard (superseded by this standard) | GB/T 12976.1-1991; GB/T 1296.2-1991; GB/T 12976.3-1991 | | Quoted Standard | GB/T 2900.10-2001; GB/T 2952.1-1989; GB/T 2952.2-1989; GB/T 3956-1997; GB/T 6995.3-2008; GB/T 12706.2-2002; GB/T 12976.3-2008; JB/T 8137.1-1999; JB/T 8137.2-1999; JB/T 8137.3-1999; JB/T 8137.4-1999; JB/T 8996-1999 | | Adopted Standard | IEC 60055-2-1981, NEQ | | 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 rated voltage 21/35kV, 26/35kV copper or aluminum impregnated paper insulated lead sheathed power cables General and construction requirements. GB/T 12976 This part applies to the rated voltage 21/35kV, 26/35kV copper or aluminum impregnated paper insulated lead sheathed power cable. Submarine cables and special purpose cable, not included in this portion. | GB/T 12976.2-2008: Paper-insulated power cables and their accessories with rated voltages up to and including 35kV -- Part 2: General and construction requirements for power cables with rated voltages 35kV
---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.
Paper-insulated power cables and their accessories with rated voltages up to and including 35kV Part 2. General and construction requirements for power cables with rated voltages 35kV
ICS 29.060.20
K13
National Standards of People's Republic of China
Replacing GB/T 12976.1 ~ GB/T 12976.3-1991
Rated voltage 35 Vp k (U m1 = 40.5 k Vp) and the following paper
Insulated power cables and accessories
Part 2. Rated voltage 35 k Vp cables - General
And structural requirements
(IEC 60055-2. 1981, Paper-insulatedmetal-sheathedcablesforrated
voltagesupto18/30kV-Part 2. Generalandconstruction
requirements, NEQ)
Posted 2009-04-01 2008-06-30 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Product code and name 2
5 structural requirements 3
6 product acceptance, logo and packaging, transportation and storage 8
Appendix A (normative) Calculation assumes 10
Appendix B (normative) rounding off 13
Foreword
GB/T 12976 "rated voltage of 35kV (Um = 40.5kV) Paper - insulated power cables and accessories" consists of three parts
composition.
--- Part 1. Rated voltage of 30kV and below cable ships and construction requirements;
--- Part 2. Rated voltage 35kV cable ships and construction requirements;
--- Part 3. Test cables and accessories.
This section GB/T Part 212 976, which corresponds to IEC 60055-2. 1981 "rated voltage 18/30kV and below the insulating paper
Metallic sheathed cable (copper or aluminum conductors and excluding gas - pressure oil-filled cables) - Part 2. General and construction requirements "and its amendment No. 1 single
(1989) No single second amendment (2005). This section and the IEC 60055-2. 1981 is not equivalent, the main differences are as follows.
--- Increased by 21/35kV, 26/35kV relevant content.
Rated voltage of 35kV and below Copper or aluminum conductor paper - Part 1 insulated power cables This section instead of GB/T 12976.1-1991 "
Score. General requirements ", GB/T 12976.2-1991" rated voltage of 35kV and below Copper or aluminum conductor paper - insulated power cables - Part 2.
Not trickle oil impregnated paper insulated metal sheathed power cables "and GB/T 12976.3-1991" rated voltage of 35kV and below copper, aluminum paper must
Edge power cables - Part 3. viscous oil impregnated paper insulated metal sheathed power cables. "
This portion of the GB/T 12976.1-1991, GB/T 12976.2-1991 and GB/T 12976.3-1991 compared to the main changes are as follows.
--- This section deleted GB/T 12976.1-1991, GB/T 12976.2-1991 and GB/T 12976.3-1991 aluminum
Sheath structure, content, thick steel wire armored structure;
--- Increasing the cable structure size (in this section Tables 2 to 5);
--- Added Appendix A "assumed calculation method," Appendix B "rounding off";
--- Increasing the lead sheath thickness calculation method (in this section in Appendix A).
This part of the Appendix A and Appendix B are 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 section is drafted. Shanghai Electric Cable Research Institute, Wuhan High Voltage Research Institute.
The main drafters of this section. Yanmeng Kun, Zhang Zhiyong, Zong Xi Hua, Deng Changsheng, XU Xiaofeng, Zhang Xize, Hanyun Wu.
This part of the standard replaces the previous editions are.
--- GB/T 12976.1-1991, GB/T 12976.2-1991, GB/T 12976.3-1991.
Rated voltage 35 Vp k (U m1 = 40.5 k Vp) and the following paper
Insulated power cables and accessories
Part 2. Rated voltage 35 k Vp cables - General
And structural requirements
1 Scope
1.1 GB/T 12976 provisions of this part of the rated voltage 21/35kV, 26/35kV (Um = 40.5kV) copper or aluminum impregnated paper must
General provisions edge lead sheathed power cable (excluding gas - pressure and oil-filled cables) and structural requirements.
GB/T 12976 in this section applies to the rated voltage 21/35kV, 26/35kV (Um = 40.5kV) copper or aluminum impregnated paper must
Edge lead sheathed power cables (excluding gas - pressure and oil-filled cables). Submarine cables and special purpose cable, not included in this section.
NOTE. Test methods and the corresponding requirements set out in the first part.
1.2 The maximum allowable operating temperature
Table 1 to a temperature suitable for viscous oil impregnated and not trickle impregnation.
When such other maximum permissible continuous operating temperature, test temperature should be adjusted accordingly.
Table 1 insulated conductors of different voltage and maximum temperature
Cable's rated voltage (U0/U) /
kV
Highest voltage for equipment Um /
kV
Maximum conductor temperature to allow normal operation
No trickle of oil-impregnated cable /
Viscous oil impregnated cable /
21/35 40.5 6560
26/35 40.5 6560
Note 1. The use of viscous oil impregnated in this table applies only to a temperature substantially horizontal cable buried in the soil.
Note 2. For use not trickle impregnation, suitable for vertical cable laying occasions.
Note 3. If the cable buried in the soil to allow continuous operation at maximum conductor temperature (100% load factor), the soil surrounding the cable may vary depending on the starting resistance
Since the time the soil dries leaving the thermal resistance becomes large. Therefore, the conductor temperature may significantly exceed the maximum allowable value, if the expected presence of such operating conditions, should
Take appropriate measures.
2 Normative references
The following documents contain provisions which, through reference GB/T 12976 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 (IEC 60050-461. 1984, IDT)
GB/T 2952.1-1989 cable outer sheath - Part 1. General
GB/T 2952.2-1989 cable outer sheath - Part 2. General metal cables outer sheath
GB/T 3956-1997 cable conductor (idt IEC 60228. 1978)
GB/T 6995.3-2008 wire and cable identification - Part 3. Wire and cable identification
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