This standard was drafted according to the rules given in GB/T 1.1-2009 based on the requirements of management measures of the CSEE group standards.
Based on the R&D, design and experimental research achievements of the "polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines", this standard considers the lightning protection characteristics of 1 000kV AC power transmission lines and borrows the ideas from the operating experience of arresters for 500kV or below power transmission lines.
The main technical contents established in this standard are as follows:
- the application scope was specified (see 1);
- the normative references were proposed (see 2);
- the applicable terms and definitions of this standard were defined (see 3.1~3.11);
- the marking of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines was established (see 4);
- the standard rated value of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines was proposed (see 5.1~5.3);
- the operating condition (including normal operation and abnormal operation) of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines was specified (see 6.1~6.2);
- the technical requirements of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (7.1~7.22);
- the test methods of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (8.1~8.20);
- the inspection rules of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (see 9.1~9.8);
- the packaging, transportation and storage requirements of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (see 10.1~10.4);
- the product installation site and mode were specified (see 11).
Please note that some contents in this standard may involve patents. The issuing authority of this standard does not undertake the responsibilities to identify these patents.
This standard was proposed by the Chinese Society of Electrical Engineering.
This standard is under the jurisdiction of and explained by the Specialized Committee on High Voltage of Chinese Society of Electrical Engineering.
Drafting organizations of this standard: State Grid Corporation of China, China Electric Power Research Institute, PG Toshiba (Langfang) Arrester Co., Ltd.
Chief drafting staff of this standard: Zhang Cuixia, Chen Weijiang, Zhang Boyu, Yuan Jun, Wang Baoshan, Wang Ninghua, Yin Yu, Shi Weidong, Ge Dong, Song Jijun, Su Ning, He Ziming.
This standard hereby was initially issued.
During the process of implementing this standard, any opinion or suggestion shall be fed back to the Standard Executive Office of the Chinese Society of Electrical Engineering.
PROFESSIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
中国电机工程学会标准
T/CSEE 0001-2015
Specification of Polymer-housed Metal Oxide Surge Arresters with Series Gap for
1000kV AC Power Transmission Lines
1000kV交流输电线路用带串联间隙
复合外套金属氧化物避雷器技术规范
1 Scope
This standard specifies the marking standard ratings, operation conditions, technical requirements, test methods, inspection rules, packaging, transportation and preservation and installation, etc. of the polymer-housed metal oxide surge arresters with series gap for 1000kV AC power transmission lines.
This standard is applicable to the production, installation and operation of the polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines.
This standard is not involved with the support members of arresters with external series gap of insulated support members for lines; the relevant requirements may be in accordance with DL/T 815.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 311.1 Insulation Coordination - Part 1: Definitions, Principles and Rules
GB/T 775.1 Test Method for Insulators - Part 1: General Test Methods
GB/T 775.3 Test Method for Insulators - Part 3: Mechanical Test Methods
GB/T 2317.2 Test Method for Electric Power Fittings - Part 2: Corona and RIV Tests for Electric Power Fittings
GB/T 6553 Electrical Insulating Materials Used under Severe Ambient Conditions - Test Methods for Evaluating Resistance to Tracking and Erosion
GB/T 10700 Test Methods for Elastic Moduli of Fine Ceramics - Bending Method
GB 11032-2010 Metal-oxide Surge Arresters without Gaps for A.C. Systems
GB/T 16927.1 High-voltage Test Techniques - Part 1: General Definitions and Test Requirements
DL/T 815 Polymer-housed Metal Oxide Surge Arresters for AC Power Transmission Lines
JGJ/T 101 Specification for Seismic Test of Buildings
IEC 60099-8 Arrester - Part 8: Metal-oxide Surge Arrester with Series Gap for 1kv or above Power Transmission Lines [Metal-oxide Surge Arresters with External Series Gap (EGLA) for Overhead Transmission and Distribution Lines of A.C. Systems Above 1kV]
3 Terms and Definitions
For the purpose of this document, the following terms and definitions and those specified in GB 11032-2012 and DL/T 815 apply. For the convenience of application, some terms and definitions specified in GB 11032-2010 and DL/T 815 are re-listed below.
3.1
Polymer-housed metal oxide surge arresters with external series gap for AC power transmission lines
The complete arrester with gaps which is composed of external series gap, metal oxide resistor and corresponding spare parts and polymeric housing, only used to protect the line insulator or/and the air gap of line tower head to avoid flashover or breakdown induced by lightning overvoltage, hereinafter referred to as arrester.
3.2
Series varistor unit of polymer-housed metal oxide surge arrester, SVU
That composed of metal oxide resistor and corresponding spare parts, as well as polymeric housing, which forms the complete arrester with gaps together with external series gap and is a part of arrester with gaps, hereinafter referred to as series varistor unit (SVU).
3.3
External series gap
A part of the arrester with gaps, which forms the complete arrester with gaps with the SVU by tandem connection, hereinafter referred to as gaps.
The pure air gap is composed of two electrodes, of which one is fixed at the high-voltage end of the SVU and another on the wire of power transmission lines or at the wire end of insulator string.
3.4
Unit of a SVU
A completely housed part of a SVU which may be connected in series with other units to construct a transmission line arrester of higher voltage or current rating and a complete arrester with gaps in combination with external series gap.
3.5
Section of a SVU
A complete and suitably assembled part of a SVU, which must be able to represent the characteristics of a SVU with respect to a particular test.
3.6
Rated voltage of a transmission line arrester
The maximum permissible r.m.s value of power-frequency voltage between the terminals of the transmission line arrester, at which the arrester is designed to operate correctly. The rated voltage is used as a reference parameter for the power-frequency follow current interrupting characteristics.
3.7
AC reference voltage of a SVU
The maximum peak value of power-frequency voltage measured when a SVU passes through the power-frequency reference current divided by . The power-frequency reference voltage of a SVU composed of multiple units in series is the sum of that of the individual unit.
3.8
DC reference voltage of a SVU
The average DC voltage of the arrester measured when a SVU passes through the DC reference current. If the voltage is relevant to the polarity, the small value is taken. The DC reference voltage of a SVU composed of multiple units in series is the sum of that of the individual unit.
3.9
50% sparkover voltage of standard lightning impulse
50% sparkover voltage of the arrester at the maximum gap distance under the action of standard lightning impulse waves.
3.10
Residual voltage of an arrester
Ures
The peak value of voltage between the terminals of a SVU due to the passage of discharge current.
3.11
Rated short-circuit current of a SVU
The r.m.s value of the maximum test power-frequency current passing through a fault SVU; under this short-circuit current, the SVU will not cause violent explosion or fracture of the housing or self-extinguishing of an open flame within 2min under specified conditions.
4 Marking
The arrester shall be identified by the following minimum information, which shall appear on a nameplate permanently attached to the arrester:
- the arrester model;
- the DC reference current and reference voltage of a SVU;
- the series gap distance and permissible deviation;
- the manufacturer's name;
- the product No.;
- the manufacturing date.
5 Standard Ratings
5.1 Standard rated voltages
The typical value of the arrester's rated voltage is 768kV; other rated voltages may also be adopted according to the actual service conditions.
5.2 Standard rated frequency
The rated frequency of arrester is 50Hz.
5.3 Standard nominal discharge current
The standard nominal discharge current of arrester for 8/20μs is 30kA.
6 Operation Conditions
6.1 Normal operation conditions
The transmission line arresters concerned in this standard shall be suitable for normal operation under the following normal service conditions:
a) ambient temperature within the range of -40℃ to +40℃;
b) sunlight radiation;
Note: the influence of the maximum irradiance (1.1kW/m2) of the sun has been taken into consideration by preheating the test sample in the type test. If any other heat sources exist around the transmission line arrester, the use of transmission line arrester shall be subject to the agreement between the supplier and the demander.
c) altitude not exceeding 1 000m;
d) frequency of the AC power supply not less than 48Hz and not more than 52Hz;
e) wind speed not greater than 35m/s;
f) areas of seismic intensity at VII or below;
g) icing thickness not greater than 20mm;
h) vertical (suspended) installation;
i) polluted area at Grade d or below.
6.2 Abnormal operation conditions
The following abnormal operation conditions are typical for transmission line arrester, which shall be specially considered in manufacturing and using of transmission line arrester and shall catch the attention of the manufacturer:
a) ambient temperature greater than +40℃ or lower than -40℃;
b) altitude exceeding 1 000m;
c) fume or steam causing degradation of insulating surface or installation hardware fittings;
d) serious pollution induced by fume, dust, smoke or other conductive matters;
e) explosive mixture of dust, gas or fume;
f) abnormal transportation and storage;
g) system frequency lower than 48Hz or higher than 52Hz;
h) arrester close to the heat source;
i) wind speed greater than 35m/s;
j) seismic intensity greater than VII;
k) arrester bearing torsional load;
l) arrester used for mechanical support;
m) non-vertical installation;
n) icing thickness greater than 20mm.
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Identification 5 Standard Ratings 6 Service Conditions 7 Technical Requirements 8 Test Methods 9 Inspection Rules 10 Packaging, Transportation and Preservation 11 Installation
This standard was drafted according to the rules given in GB/T 1.1-2009 based on the requirements of management measures of the CSEE group standards.
Based on the R&D, design and experimental research achievements of the "polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines", this standard considers the lightning protection characteristics of 1 000kV AC power transmission lines and borrows the ideas from the operating experience of arresters for 500kV or below power transmission lines.
The main technical contents established in this standard are as follows:
- the application scope was specified (see 1);
- the normative references were proposed (see 2);
- the applicable terms and definitions of this standard were defined (see 3.1~3.11);
- the marking of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines was established (see 4);
- the standard rated value of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines was proposed (see 5.1~5.3);
- the operating condition (including normal operation and abnormal operation) of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines was specified (see 6.1~6.2);
- the technical requirements of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (7.1~7.22);
- the test methods of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (8.1~8.20);
- the inspection rules of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (see 9.1~9.8);
- the packaging, transportation and storage requirements of polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines were specified (see 10.1~10.4);
- the product installation site and mode were specified (see 11).
Please note that some contents in this standard may involve patents. The issuing authority of this standard does not undertake the responsibilities to identify these patents.
This standard was proposed by the Chinese Society of Electrical Engineering.
This standard is under the jurisdiction of and explained by the Specialized Committee on High Voltage of Chinese Society of Electrical Engineering.
Drafting organizations of this standard: State Grid Corporation of China, China Electric Power Research Institute, PG Toshiba (Langfang) Arrester Co., Ltd.
Chief drafting staff of this standard: Zhang Cuixia, Chen Weijiang, Zhang Boyu, Yuan Jun, Wang Baoshan, Wang Ninghua, Yin Yu, Shi Weidong, Ge Dong, Song Jijun, Su Ning, He Ziming.
This standard hereby was initially issued.
During the process of implementing this standard, any opinion or suggestion shall be fed back to the Standard Executive Office of the Chinese Society of Electrical Engineering.
PROFESSIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
中国电机工程学会标准
T/CSEE 0001-2015
Specification of Polymer-housed Metal Oxide Surge Arresters with Series Gap for
1000kV AC Power Transmission Lines
1000kV交流输电线路用带串联间隙
复合外套金属氧化物避雷器技术规范
1 Scope
This standard specifies the marking standard ratings, operation conditions, technical requirements, test methods, inspection rules, packaging, transportation and preservation and installation, etc. of the polymer-housed metal oxide surge arresters with series gap for 1000kV AC power transmission lines.
This standard is applicable to the production, installation and operation of the polymer-housed metal oxide surge arresters with series gap for 1 000kV AC power transmission lines.
This standard is not involved with the support members of arresters with external series gap of insulated support members for lines; the relevant requirements may be in accordance with DL/T 815.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 311.1 Insulation Coordination - Part 1: Definitions, Principles and Rules
GB/T 775.1 Test Method for Insulators - Part 1: General Test Methods
GB/T 775.3 Test Method for Insulators - Part 3: Mechanical Test Methods
GB/T 2317.2 Test Method for Electric Power Fittings - Part 2: Corona and RIV Tests for Electric Power Fittings
GB/T 6553 Electrical Insulating Materials Used under Severe Ambient Conditions - Test Methods for Evaluating Resistance to Tracking and Erosion
GB/T 10700 Test Methods for Elastic Moduli of Fine Ceramics - Bending Method
GB 11032-2010 Metal-oxide Surge Arresters without Gaps for A.C. Systems
GB/T 16927.1 High-voltage Test Techniques - Part 1: General Definitions and Test Requirements
DL/T 815 Polymer-housed Metal Oxide Surge Arresters for AC Power Transmission Lines
JGJ/T 101 Specification for Seismic Test of Buildings
IEC 60099-8 Arrester - Part 8: Metal-oxide Surge Arrester with Series Gap for 1kv or above Power Transmission Lines [Metal-oxide Surge Arresters with External Series Gap (EGLA) for Overhead Transmission and Distribution Lines of A.C. Systems Above 1kV]
3 Terms and Definitions
For the purpose of this document, the following terms and definitions and those specified in GB 11032-2012 and DL/T 815 apply. For the convenience of application, some terms and definitions specified in GB 11032-2010 and DL/T 815 are re-listed below.
3.1
Polymer-housed metal oxide surge arresters with external series gap for AC power transmission lines
The complete arrester with gaps which is composed of external series gap, metal oxide resistor and corresponding spare parts and polymeric housing, only used to protect the line insulator or/and the air gap of line tower head to avoid flashover or breakdown induced by lightning overvoltage, hereinafter referred to as arrester.
3.2
Series varistor unit of polymer-housed metal oxide surge arrester, SVU
That composed of metal oxide resistor and corresponding spare parts, as well as polymeric housing, which forms the complete arrester with gaps together with external series gap and is a part of arrester with gaps, hereinafter referred to as series varistor unit (SVU).
3.3
External series gap
A part of the arrester with gaps, which forms the complete arrester with gaps with the SVU by tandem connection, hereinafter referred to as gaps.
The pure air gap is composed of two electrodes, of which one is fixed at the high-voltage end of the SVU and another on the wire of power transmission lines or at the wire end of insulator string.
3.4
Unit of a SVU
A completely housed part of a SVU which may be connected in series with other units to construct a transmission line arrester of higher voltage or current rating and a complete arrester with gaps in combination with external series gap.
3.5
Section of a SVU
A complete and suitably assembled part of a SVU, which must be able to represent the characteristics of a SVU with respect to a particular test.
3.6
Rated voltage of a transmission line arrester
The maximum permissible r.m.s value of power-frequency voltage between the terminals of the transmission line arrester, at which the arrester is designed to operate correctly. The rated voltage is used as a reference parameter for the power-frequency follow current interrupting characteristics.
3.7
AC reference voltage of a SVU
The maximum peak value of power-frequency voltage measured when a SVU passes through the power-frequency reference current divided by . The power-frequency reference voltage of a SVU composed of multiple units in series is the sum of that of the individual unit.
3.8
DC reference voltage of a SVU
The average DC voltage of the arrester measured when a SVU passes through the DC reference current. If the voltage is relevant to the polarity, the small value is taken. The DC reference voltage of a SVU composed of multiple units in series is the sum of that of the individual unit.
3.9
50% sparkover voltage of standard lightning impulse
50% sparkover voltage of the arrester at the maximum gap distance under the action of standard lightning impulse waves.
3.10
Residual voltage of an arrester
Ures
The peak value of voltage between the terminals of a SVU due to the passage of discharge current.
3.11
Rated short-circuit current of a SVU
The r.m.s value of the maximum test power-frequency current passing through a fault SVU; under this short-circuit current, the SVU will not cause violent explosion or fracture of the housing or self-extinguishing of an open flame within 2min under specified conditions.
4 Marking
The arrester shall be identified by the following minimum information, which shall appear on a nameplate permanently attached to the arrester:
- the arrester model;
- the DC reference current and reference voltage of a SVU;
- the series gap distance and permissible deviation;
- the manufacturer's name;
- the product No.;
- the manufacturing date.
5 Standard Ratings
5.1 Standard rated voltages
The typical value of the arrester's rated voltage is 768kV; other rated voltages may also be adopted according to the actual service conditions.
5.2 Standard rated frequency
The rated frequency of arrester is 50Hz.
5.3 Standard nominal discharge current
The standard nominal discharge current of arrester for 8/20μs is 30kA.
6 Operation Conditions
6.1 Normal operation conditions
The transmission line arresters concerned in this standard shall be suitable for normal operation under the following normal service conditions:
a) ambient temperature within the range of -40℃ to +40℃;
b) sunlight radiation;
Note: the influence of the maximum irradiance (1.1kW/m2) of the sun has been taken into consideration by preheating the test sample in the type test. If any other heat sources exist around the transmission line arrester, the use of transmission line arrester shall be subject to the agreement between the supplier and the demander.
c) altitude not exceeding 1 000m;
d) frequency of the AC power supply not less than 48Hz and not more than 52Hz;
e) wind speed not greater than 35m/s;
f) areas of seismic intensity at VII or below;
g) icing thickness not greater than 20mm;
h) vertical (suspended) installation;
i) polluted area at Grade d or below.
6.2 Abnormal operation conditions
The following abnormal operation conditions are typical for transmission line arrester, which shall be specially considered in manufacturing and using of transmission line arrester and shall catch the attention of the manufacturer:
a) ambient temperature greater than +40℃ or lower than -40℃;
b) altitude exceeding 1 000m;
c) fume or steam causing degradation of insulating surface or installation hardware fittings;
d) serious pollution induced by fume, dust, smoke or other conductive matters;
e) explosive mixture of dust, gas or fume;
f) abnormal transportation and storage;
g) system frequency lower than 48Hz or higher than 52Hz;
h) arrester close to the heat source;
i) wind speed greater than 35m/s;
j) seismic intensity greater than VII;
k) arrester bearing torsional load;
l) arrester used for mechanical support;
m) non-vertical installation;
n) icing thickness greater than 20mm.
Contents of T/CSEE 0001-2015
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Identification
5 Standard Ratings
6 Service Conditions
7 Technical Requirements
8 Test Methods
9 Inspection Rules
10 Packaging, Transportation and Preservation
11 Installation
