GB/T 7970.4-2002
Replaced
GB/T 41146-2021
Active
National standards
GB/T 41146-2021 Method of sampling insulating liquids
GB/T 41146-2021 Method of sampling insulating liquids
Price:
$ 84
Basic Information
Standard Code:
GB/T 41146-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Electrician's insulating materials and their products
ICS Name:
Paper and cardboard insulation materials
Publish Date:
2021-12-31
Implement Date:
2022-07-01
Pages:
24 pages
Scope
This document specifies the sampling method for insulating fluids, including the sampling method for insulating fluids in transportation containers and electrical equipment [such as power transformers, instrument transformers, reactors, bushings, oil-filled cables, oil-filled capacitor tanks, switchgear, and on-load tap-changers (LTCs)].
This document is applicable to mineral oils and non-mineral oils (such as synthetic esters, natural esters, or silicone oils) with a viscosity of less than 1,500 mm2/s (or cSt) at the sampling temperature.
Development Information
Referenced Standards
IEC 60567:2011
IEC 60970
Adopt standards
IEC 60475:2011
Related Standards
GB/T 19264.3-2003
Replaced
GB/T 19264.3-2003 Specification for pressboard and press paper for electrical purposes—Part 3:Specifications for individual materials—Sheet 1:Requirements for pressboard, types B.0.1,B.2.1,B.2.3,B.3.1,B.3.3,B.4.1,B.4.3,B.5.1,B.6.1 and B.7.1
GB/T 7969-2003
Replaced
GB/T 7969-2003 Electric power cable paper
GB/T 20628.1-2006
Active
GB/T 20628.1-2006 Specification for cellulosic papers for electrical purposes—Part 1:Definitions and general requirements
GB/T 20628.2-2006
Active
GB/T 20628.2-2006 Cellulosic papers for electrical purposes—Part 2:Methods of test
GB/T 20629.1-2006
Active