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Publication year
Preview GB/T 20840.4-2015 15.5.2015
GB/T 20840.4-2015

Instrument transformers—Part 4:Additional requirements for combined transformers

Standard published on 15.5.2015

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electronic design (pdf) (562.80 USD)


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562.80 USD


in 4 working days
Preview GB/T 20840.5-2013 7.2.2013
GB/T 20840.5-2013

Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers

Standard published on 7.2.2013

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electronic design (pdf) (1402.80 USD)


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1 402.80 USD


in 8 working days
Preview GB/T 20840.6-2017 1.11.2017
GB/T 20840.6-2017

Instrument transformers—Part 6:Additional general requirements for low-power instrument transformers

Standard published on 1.11.2017

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electronic design (pdf) (1630.80 USD)


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1 630.80 USD


in 10 working days
Preview GB/T 20840.7-2007 16.1.2007
GB/T 20840.7-2007

Instrument transformers - Part 7: Electronic voltage transformers

Standard published on 16.1.2007

Selected format:
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electronic design (pdf) (1630.80 USD)


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1 630.80 USD


in 8 working days
Preview GB/T 20840.8-2007 16.1.2007
GB/T 20840.8-2007

Instrument transformers—Part 8:Electronic current transformers

Standard published on 16.1.2007

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electronic design (pdf) (2974.80 USD)


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2 974.80 USD


in 13 working days
Preview GB/T 20840.9-2017 1.11.2017
GB/T 20840.9-2017

Instrument transformers—Part 9:Digital interface for instruments transformers

Standard published on 1.11.2017

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electronic design (pdf) (1486.80 USD)


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1 486.80 USD


in 8 working days
Preview GB/T 20840.99-2025 28.2.2025
GB/T 20840.99-2025

Instrument transformers—Part 99Glossary

Standard published on 28.2.2025

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electronic design (pdf) (1390.80 USD)


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1 390.80 USD


in 7 working days
Preview GB/T 20841-2025 5.10.2025
GB/T 20841-2025

Heating cables with a rated voltage up to and including 300/500 V for comfort heating and prevention of ice formation

Standard published on 5.10.2025

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electronic design (pdf) (616.80 USD)


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616.80 USD


in 5 working days
Preview GB/T 20842-2024 26.10.2024
GB/T 20842-2024

Technical requirement of lifeboat

Standard published on 26.10.2024

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electronic design (pdf) (1162.80 USD)


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1 162.80 USD


in 7 working days
Preview GB/T 20843-2007 5.3.2007
GB/T 20843-2007

Shipbuilding - Strum boxes

Standard published on 5.3.2007

Selected format:
English, Chinese -
electronic design (pdf) (136.80 USD)


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136.80 USD


in 3 working days

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Latest update: 2026-08-21 (Number of items: 2 298 377)
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