GB - Chinese national standards

Quantitative analysis of animal fibers such as cashmere and wool

Available languages: English, Chinese

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Oxygen-free copper sheets and strips for vacuum electron devices

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Available design: electronic design (pdf), Print design

Environmental climatic conditions appearing in different altitudes for electrical products

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Measuring relays and protection equipment—Part 118: Synchrophasor for power systems—Measurements

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Available design: electronic design (pdf), Print design

Measuring relays and protection equipment—Part 121:Functional requirements for distance protection

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Measuring relays and protection equipment—Part 127:Functional requirements for over/under voltage protection

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Available design: electronic design (pdf), Print design

Measuring relays and protection equipment—Part 149: Functional requirements for thermal electrical relays

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Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection

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Measuring relays and protection equipment—Part 181Functional requirements for frequency protection

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Measuring relays and protection equipment—Part 187-1: Functional requirements for differential protection—Restrained and unrestrained differential protection of motors, generators and transformers

Available languages: English, Chinese

Available design: electronic design (pdf), Print design