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GB/T 41631-2022Specification for unused insulating mineral oils for cables with oil ducts (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

July 11, 2022

Implementation date

February 1, 2023

Scope

GB/T 41631-2022 (Specification for unused insulating mineral oils for cables with oil ducts) is available as an English-translated PDF.

GB/T 41631-2022 is the Chinese standard "Specification for unused insulating mineral oils for cables with oil ducts".

Its scope clause reads: This document specifies the specification and test methods for unused mineral insulating oils for oil-filled cables in delivery condition. these cable packs Including hollow cable, conduit cable and any other form of cable with oil flow measures.

This document applies to mineral insulating oils with or without additives, obtained by petroleum distillation and refining. This document does not apply to mineral insulating oils used in transformers, switches, capacitors and similar equipment, nor to chemically synthesized Hydrocarbon insulating oil.

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Document preview — GB/T 41631-2022

National Standard of the People's Republic of China

Classification: K 15

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Sampling
5 Test method
5.1 Appearance
5.2 Density
5.3 Kinematic viscosity
5.4 Flash point
5.5 Pour point
5.6 Cloud point
5.7 Acid number
5.8 Water content
5.9 Corrosive sulfur
5.10 Antioxidants
5.11 Breakdown voltage
5.12 Dielectric Dissipation Factor
5.13 Electrical stress and ionization stability (gassing)
6 Performance Requirements
7 Marking and general delivery requirements

1 Scope

This document specifies the specification and test methods for unused mineral insulating oils for oil-filled cables in delivery condition. these cable packs

Including hollow cable, conduit cable and any other form of cable with oil flow measures.

This document applies to mineral insulating oils with or without additives, obtained by petroleum distillation and refining.

This document does not apply to mineral insulating oils used in transformers, switches, capacitors and similar equipment, nor to chemically synthesized

Hydrocarbon insulating oil.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 261 Determination of flash point Pensky-Martin closed cup method (GB/T 261-2008, ISO 2719.2002, MOD)

GB/T 507 Determination of breakdown voltage of insulating oil (GB/T 507-2002, IEC 60156.1995, eqv)

GB/T 1884 Laboratory Determination of Density of Crude Oil and Liquid Petroleum Products (Densitometer Method) (GB/T 1884-2000, ISO 3675.

1998, MOD)

GB/T 3535 Determination of Pour Point of Petroleum Products (GB/T 3535-2006, ISO 3016.1994, MOD)

GB/T 3536 Determination of flash point and fire point of petroleum products Cleveland open cup method (GB/T 3536-2008, ISO 2592.

2000, MOD)

GB/T 5654 Measurement of relative permittivity, dielectric loss factor and DC resistivity of liquid insulating materials (GB/T 5654-

2007, IEC 60247.2004, IDT)

GB/T 10065-2007 Determination of gas evolution properties of insulating liquids under electrical stress and ionization (IEC 60628.1985,

MOD)

Note. There is no technical difference between the quoted content of GB/T 10065-2007 and the content of IEC 60628.1985.

GB/T 30515 Determination of kinematic viscosity and dynamic viscosity calculation method of transparent and opaque liquid petroleum products (GB/T 30515-

2014, ISO 3104.1994, MOD)

GB/T 41146 Sampling method for insulating liquids (GB/T 41146-2021, IEC 60475.2011, IDT)

NB/T 42140 Determination of moisture by Karl Fischer automatic coulometric titration for oil-impregnated paper and oil-impregnated paperboard with insulating liquid (NB/T 42140-

2017, IEC 60814.1997, MOD)

SH/T 0304 Electrical Insulating Oil Corrosive Sulfur Test Method (SH/T 0304-1999, ISO 5662.1997, eqv)

Note. GB/T 7602.4-2017 Determination of T501 Antioxidant Content in Transformer Oil and Turbine Oil Part 4.GC-MS method (IEC 60666.

2010, NEQ)

GB/T 42733 | GB/T 31838.7 | GB/T 36289.1 | GB/T 41633.2 | GB/T 41632 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 2719.2002 · IEC 60156.1995 · ISO 3675 · ISO 3016.1994 · ISO 2592 · IEC 60247.2004 · IEC 60628.1985 · ISO 3104.1994 · IEC 60475.2011 · IEC 60814.1997 · ISO 5662.1997 · IEC 60666

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