About us
About us
Focus on the existing and sustainable development problems of the industry, and provide solutions through technological innovation.
News
News
Learn about the latest company, products, business news and technological developments of SHEMAR POWER. Every day, SHEMAR is bringing safer and more economical electric energy closer to you.
Patent Standard
Be valuable only by creating value. Creating value means be valuable
Patent work：
As of December 31, 2020, the company has applied for：
-
276Domestic invention patents
-
311Domestic utility model patents
-
33Domestic design patents
-
30PCT patents
-
6Paris Convention patents
-
93Overseas invention patents
-
28Overseas invention patents
| Product | Number of domestic patents | Domestic invention patent | Number of international patents | International Invention Patent |
|---|---|---|---|---|
| Rubber seal | 8 | 2 | 0 | 0 |
| Substation insulator | 95 | 53 | 4 | 4 |
| Line insulator | 13 | 7 | 0 | 0 |
| Composite cross arm tower | 38 | 7 | 17 | 17 |
| Anti-flashover solution | 16 | 6 | 1 | 1 |
| Transformer bushing | 25 | 4 | 1 | 1 |
| Lightning arrester | 32 | 3 | 29 | 1 |
| Gil | 1 | 0 | 0 | 0 |
| GIL | 12 | 3 | 0 | 0 |
| Insulating pull rod | 7 | 4 | 0 | 0 |
| Substation structure | 5 | 0 | 0 | 0 |
| Gas bushing | 12 | 3 | 0 | 0 |
| Cable trench | 3 | 0 | 0 | 0 |
Standard work
The company has actively participated in standardization activities at home and abroad and has become a member of many standardization committees and associations, including the national grid Commission (CIGRE), the Standards Committee of the Institute of
| Serial number | Standard number | Standard name (Chinese) | Standard type |
|---|---|---|---|
| 1 | IEEE P1898-2016 | Serial number, standard number, standard name, standard type | National standard |
| 2 | GB/T 21429-2008 | Definition, test methods, acceptance criteria and design recommendations of hollow composite insulators for outdoor and indoor electrical equipment | National standard |
| 3 | GB/T 25096-2010 | Definition, experimental method and acceptance criteria of power station post composite insulator for substation with AC voltage higher than 1000V | National standard |
| 4 | GB/T 26218.3-2011 | Selection and size of high voltage insulators for use in polluted conditions Part 3: composite insulators for AC systems | National standard |
| 5 | GB/T 24840-2018 | Technical specification for bushing for 1000kV AC system | National standard |
| 6 | GB/T 34939.1-2017 | 800kV DC post composite insulator part I: epoxy glass fiber solid core composite insulator | National standard |
| 7 | GB/T 22079 -2019 | High voltage Polymer Insulators for indoor and outdoor use - General definitions, test methods and acceptance criteria | National standard |
| 8 | GB/T 26218.4 -2019 | Selection and size of high voltage insulators for use under polluted conditions Part IV insulators for DC systems | National standard |
| 9 | DL/T 810-2012 | Technical requirements for DC rod suspension composite insulators with voltage levels above ±500kV | Industrial standard |
| 10 | DL/T 1277-2013 | Technical Specification for 1100kV AC Hollow Composite Insulators | Industrial standard |
| 11 | DL/T 1472.1-2015 | Post Insulators for DC Fields of Converter Stations Part 1: Technical Conditions | Industrial standard |
| 12 | DL/T 1472.2-2015 | Post Insulators for DC Fields of Converter Stations Part 2: Dimensions and Characteristics | Industrial standard |
| 13 | DL/T 1579-2016 | Technical specifications for end fittings for rod suspension composite insulators | Industrial standard |
| 14 | JB/T 8448.1-2018 | Technical requirements for sealing products for transformer products Part 1: Rubber sealing products | Industrial standard |
| 15 | NB/T 42012-2013 | Dimensions and characteristics of 1,100kV composite insulators for AC substations and electrical equipment | Industrial standard |
| 16 | DL/T 1902-2018 | Specification for construction, operation and maintenance of high-voltage AC and DC hollow composite insulators | Industrial standard |
| 17 | T/CEC 138-2017 | Technical requirements of damping rubber materials for oil-immersed transformers | Group standard |
| 18 | T/CEC 183-2018 | Technical specification for high voltage AC and DC hollow composite insulators | Group standard |
| 19 | T/CEC 270-2019 | Technical Specification for 1000kV AC Hollow Gas-filled Line Post Composite Insulator | Group standard |
| 20 | T/CSTM 00164-2020 | Life Evaluation of Rubber Sealing Ring in Liquid Medium | Group standard |
| 21 | Q/GDW 11123.1-2013 | Technical specification for composite external insulation of 750kV substation equipment Part 1: General | National Grid Enterprise Standard |
| 22 | Q/GDW 11123.2-2013 | Technical specification for composite external insulation of 750kV substation equipment Part 2: Equipment specification | National Grid Enterprise Standard |
| 23 | Q/GDW 11123.3-2013 | Technical specification for composite external insulation of 750kV substation equipment Part 3: Composite insulator | National Grid Enterprise Standard |
| 24 | Q/GDW 11124.1-2013 | Technical Regulations for 750kV Overhead Transmission Line Pole and Tower Composite Crossarm Part 1: Design Technology | National Grid Enterprise Standard |
| 25 | Q/GDW 11124.2-2013 | 750kV overhead transmission line tower composite crossarm technical regulations Part 2: Component technology | National Grid Enterprise Standard |
| 26 | Q/GDW 11124.3-2013 | 750kV overhead transmission line tower composite crossarm technical regulations Part 3: Test technology | National Grid Enterprise Standard |
| 27 | Q/GDW 11124.4-2013 | Technical Regulations for 750kV Overhead Transmission Line Pole and Tower Composite Crossarm Part 4: Installation Process | National Grid Enterprise Standard |
| 28 | Q/GDW 11124.5-2014 | 750kV overhead transmission line tower composite crossarm technical regulations Part 5: Operation and maintenance guidelines | National Grid Enterprise Standard |
| 29 | Q/GDW 11714.1-2017 | 1000kV AC overhead transmission line tower composite crossarm Part 1: Design requirements | National Grid Enterprise Standard |
| 30 | Q/CSG 1203056.2-2018 | 110kV～500kV Overhead Transmission Line Pole Tower Composite Cross Arm Technical Regulations Part 2: Element Technology (Trial) | China Southern Power Grid Enterprise Standard |
| 31 | Q/CSG 1203056.3-2018 | 110kV～500kV Overhead Transmission Line Tower Composite Crossarm Technical Regulations Part 3: Test Technology (Trial) | China Southern Power Grid Enterprise Standard |
Patent work：
As of December 31, 2020, the company has applied for：
-
276Domestic invention patents
-
311Domestic utility model patents
-
33Domestic design patents
-
30PCT patents
-
6Paris Convention patents
-
93Overseas invention patents
-
28Overseas invention patents
| Product:Rubber seal |
|---|
| Number of domestic patents:8 |
| Domestic invention patent:2 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:Substation insulator |
|---|
| Number of domestic patents:95 |
| Domestic invention patent:53 |
| Number of international patents:4 |
| International Invention Patent:4 |
| Product:Line insulator |
|---|
| Number of domestic patents:13 |
| Domestic invention patent:7 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:Composite cross arm tower |
|---|
| Number of domestic patents:38 |
| Domestic invention patent:7 |
| Number of international patents:17 |
| International Invention Patent:17 |
| Product:Anti-flashover solution |
|---|
| Number of domestic patents:16 |
| Domestic invention patent:6 |
| Number of international patents:1 |
| International Invention Patent:1 |
| Product:Transformer bushing |
|---|
| Number of domestic patents:25 |
| Domestic invention patent:4 |
| Number of international patents:1 |
| International Invention Patent:1 |
| Product:Lightning arrester |
|---|
| Number of domestic patents:32 |
| Domestic invention patent:3 |
| Number of international patents:29 |
| International Invention Patent:1 |
| Product:Gil |
|---|
| Number of domestic patents:1 |
| Domestic invention patent:0 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:GIL |
|---|
| Number of domestic patents:12 |
| Domestic invention patent:3 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:Insulating pull rod |
|---|
| Number of domestic patents:7 |
| Domestic invention patent:4 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:Substation structure |
|---|
| Number of domestic patents:5 |
| Domestic invention patent:0 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:Gas bushing |
|---|
| Number of domestic patents:12 |
| Domestic invention patent:3 |
| Number of international patents:0 |
| International Invention Patent:0 |
| Product:Cable trench |
|---|
| Number of domestic patents:3 |
| Domestic invention patent:0 |
| Number of international patents:0 |
| International Invention Patent:0 |
Standard work
The company has actively participated in standardization activities at home and abroad and has become a member of many standardization committees and associations, including the national grid Commission (CIGRE), the Standards Committee of the Institute of
| Serial number ：1 |
|---|
| Standard number : IEEE P1898-2016 |
| Standard name (Chinese) : Serial number, standard number, standard name, standard type |
| Standard type : National standard |
| Serial number ：2 |
|---|
| Standard number : GB/T 21429-2008 |
| Standard name (Chinese) : Definition, test methods, acceptance criteria and design recommendations of hollow composite insulators for outdoor and indoor electrical equipment |
| Standard type : National standard |
| Serial number ：3 |
|---|
| Standard number : GB/T 25096-2010 |
| Standard name (Chinese) : Definition, experimental method and acceptance criteria of power station post composite insulator for substation with AC voltage higher than 1000V |
| Standard type : National standard |
| Serial number ：4 |
|---|
| Standard number : GB/T 26218.3-2011 |
| Standard name (Chinese) : Selection and size of high voltage insulators for use in polluted conditions Part 3: composite insulators for AC systems |
| Standard type : National standard |
| Serial number ：5 |
|---|
| Standard number : GB/T 24840-2018 |
| Standard name (Chinese) : Technical specification for bushing for 1000kV AC system |
| Standard type : National standard |
| Serial number ：6 |
|---|
| Standard number : GB/T 34939.1-2017 |
| Standard name (Chinese) : 800kV DC post composite insulator part I: epoxy glass fiber solid core composite insulator |
| Standard type : National standard |
| Serial number ：7 |
|---|
| Standard number : GB/T 22079 -2019 |
| Standard name (Chinese) : High voltage Polymer Insulators for indoor and outdoor use - General definitions, test methods and acceptance criteria |
| Standard type : National standard |
| Serial number ：8 |
|---|
| Standard number : GB/T 26218.4 -2019 |
| Standard name (Chinese) : Selection and size of high voltage insulators for use under polluted conditions Part IV insulators for DC systems |
| Standard type : National standard |
| Serial number ：9 |
|---|
| Standard number : DL/T 810-2012 |
| Standard name (Chinese) : Technical requirements for DC rod suspension composite insulators with voltage levels above ±500kV |
| Standard type : Industrial standard |
| Serial number ：10 |
|---|
| Standard number : DL/T 1277-2013 |
| Standard name (Chinese) : Technical Specification for 1100kV AC Hollow Composite Insulators |
| Standard type : Industrial standard |
| Serial number ：11 |
|---|
| Standard number : DL/T 1472.1-2015 |
| Standard name (Chinese) : Post Insulators for DC Fields of Converter Stations Part 1: Technical Conditions |
| Standard type : Industrial standard |
| Serial number ：12 |
|---|
| Standard number : DL/T 1472.2-2015 |
| Standard name (Chinese) : Post Insulators for DC Fields of Converter Stations Part 2: Dimensions and Characteristics |
| Standard type : Industrial standard |
| Serial number ：13 |
|---|
| Standard number : DL/T 1579-2016 |
| Standard name (Chinese) : Technical specifications for end fittings for rod suspension composite insulators |
| Standard type : Industrial standard |
| Serial number ：14 |
|---|
| Standard number : JB/T 8448.1-2018 |
| Standard name (Chinese) : Technical requirements for sealing products for transformer products Part 1: Rubber sealing products |
| Standard type : Industrial standard |
| Serial number ：15 |
|---|
| Standard number : NB/T 42012-2013 |
| Standard name (Chinese) : Dimensions and characteristics of 1,100kV composite insulators for AC substations and electrical equipment |
| Standard type : Industrial standard |
| Serial number ：16 |
|---|
| Standard number : DL/T 1902-2018 |
| Standard name (Chinese) : Specification for construction, operation and maintenance of high-voltage AC and DC hollow composite insulators |
| Standard type : Industrial standard |
| Serial number ：17 |
|---|
| Standard number : T/CEC 138-2017 |
| Standard name (Chinese) : Technical requirements of damping rubber materials for oil-immersed transformers |
| Standard type : Group standard |
| Serial number ：18 |
|---|
| Standard number : T/CEC 183-2018 |
| Standard name (Chinese) : Technical specification for high voltage AC and DC hollow composite insulators |
| Standard type : Group standard |
| Serial number ：19 |
|---|
| Standard number : T/CEC 270-2019 |
| Standard name (Chinese) : Technical Specification for 1000kV AC Hollow Gas-filled Line Post Composite Insulator |
| Standard type : Group standard |
| Serial number ：20 |
|---|
| Standard number : T/CSTM 00164-2020 |
| Standard name (Chinese) : Life Evaluation of Rubber Sealing Ring in Liquid Medium |
| Standard type : Group standard |
| Serial number ：21 |
|---|
| Standard number : Q/GDW 11123.1-2013 |
| Standard name (Chinese) : Technical specification for composite external insulation of 750kV substation equipment Part 1: General |
| Standard type : National Grid Enterprise Standard |
| Serial number ：22 |
|---|
| Standard number : Q/GDW 11123.2-2013 |
| Standard name (Chinese) : Technical specification for composite external insulation of 750kV substation equipment Part 2: Equipment specification |
| Standard type : National Grid Enterprise Standard |
| Serial number ：23 |
|---|
| Standard number : Q/GDW 11123.3-2013 |
| Standard name (Chinese) : Technical specification for composite external insulation of 750kV substation equipment Part 3: Composite insulator |
| Standard type : National Grid Enterprise Standard |
| Serial number ：24 |
|---|
| Standard number : Q/GDW 11124.1-2013 |
| Standard name (Chinese) : Technical Regulations for 750kV Overhead Transmission Line Pole and Tower Composite Crossarm Part 1: Design Technology |
| Standard type : National Grid Enterprise Standard |
| Serial number ：25 |
|---|
| Standard number : Q/GDW 11124.2-2013 |
| Standard name (Chinese) : 750kV overhead transmission line tower composite crossarm technical regulations Part 2: Component technology |
| Standard type : National Grid Enterprise Standard |
| Serial number ：26 |
|---|
| Standard number : Q/GDW 11124.3-2013 |
| Standard name (Chinese) : 750kV overhead transmission line tower composite crossarm technical regulations Part 3: Test technology |
| Standard type : National Grid Enterprise Standard |
| Serial number ：27 |
|---|
| Standard number : Q/GDW 11124.4-2013 |
| Standard name (Chinese) : Technical Regulations for 750kV Overhead Transmission Line Pole and Tower Composite Crossarm Part 4: Installation Process |
| Standard type : National Grid Enterprise Standard |
| Serial number ：28 |
|---|
| Standard number : Q/GDW 11124.5-2014 |
| Standard name (Chinese) : 750kV overhead transmission line tower composite crossarm technical regulations Part 5: Operation and maintenance guidelines |
| Standard type : National Grid Enterprise Standard |
| Serial number ：29 |
|---|
| Standard number : Q/GDW 11714.1-2017 |
| Standard name (Chinese) : 1000kV AC overhead transmission line tower composite crossarm Part 1: Design requirements |
| Standard type : National Grid Enterprise Standard |
| Serial number ：30 |
|---|
| Standard number : Q/CSG 1203056.2-2018 |
| Standard name (Chinese) : 110kV～500kV Overhead Transmission Line Pole Tower Composite Cross Arm Technical Regulations Part 2: Element Technology (Trial) |
| Standard type : China Southern Power Grid Enterprise Standard |
| Serial number ：31 |
|---|
| Standard number : Q/CSG 1203056.3-2018 |
| Standard name (Chinese) : 110kV～500kV Overhead Transmission Line Tower Composite Crossarm Technical Regulations Part 3: Test Technology (Trial) |
| Standard type : China Southern Power Grid Enterprise Standard |
