GB/T 47979-2026Phase comparator used with high-voltage detecting and indicating system (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document partially replaces GB/T 25081-2010 "High Voltage Live Indicator Display Devices (VPIS)". Compared with GB/T 25081-2010,

-- Changed "Phase relationship correct" to "Phase same", and changed "Phase relationship incorrect" to "Phase different" (see 6.5, 6.6).

6.11, 7.4, 7.7, 7.8, 11.2 (GB/T 25081-2010, 5.6, 6.10, 10.3).

--All content except the phase identifier has been removed (see 5.1.2 and 5.6 of GB/T 25081-2010).

This document is modified to adopt IEC 62271-215:2021 "High voltage switchgear and controlgear - Part 215: VDIS - Phase identification".

Different instruments.

This document has undergone significant structural adjustments compared to IEC 62271-215:2021.A comparison of the structural numbering changes between the two documents is provided.

See Appendix A for a list.

The technical differences between this document and IEC 62271-215:2021, and the reasons therefor, are as follows.

--The applicability of the phase recognition device has been modified (see Chapter 1) to meet my country's technical requirements;

--Regarding normative references, this document has made adjustments for technical differences, which are mainly reflected in Chapter 2, "Specifications".

In the "Sexual References" section, the specific adjustments are as follows.

- IEC 62271-213 (see Chapter 1, 6.4, 6.5.1, 6.5.2) has been replaced by the normatively referenced GB/T 25081-2026.

(6.5.3, 6.7, 7.4.6, 7.5.3, 11.2), to adapt to my country's technical conditions, and change the original undated citations to punctuated ones.

Date reference;

- IEC 62271-1 (see Chapter 5, 6.16.4) has been replaced with the normatively referenced GB/T 11022-2020 to accommodate our...

The country's technical conditions, and changed the original undated citations to dated citations;

- IEC 60529 has been replaced with the normatively referenced GB/T 4208 (see 6.12, 7.13.1) to accommodate my country's technical requirements.

condition;

- IEC 62262 (see 6.14.4, 7.13.2) has been replaced with the normatively referenced GB/T 20138 to accommodate my country's technical requirements.

- IEC 61000-4-2 (see 6.15.2, 7.16.1) has been replaced with the normatively referenced GB/T 17626.2-2018 to accommodate [the new standard].

The technical conditions in our country, and the original text's undated citations have been changed to dated citations;

- IEC 61000-4-3 (see 6.15.3, 7.16.2) has been replaced with the normatively referenced GB/T 17626.3-2023 to accommodate [the new standard].

The technical conditions of our country, and changed the original undated citations to dated citations;

- IEC 60417 (see 6.17) has been replaced with the normatively referenced GB/T 5465.2 to adapt to my country's technical conditions;

- IEC 60060-1 (see 7.1.1, 7.3.1, 7.3.4) has been replaced with the normatively referenced GB/T 16927.1 to adapt to my country's national standards.

Technical conditions;

- IEC 61000-4-5 (see 7.3.2) has been replaced with the normatively referenced GB/T 17626.5 to accommodate Chinese technology.

condition;

- IEC 60068-2-38 (see 7.12) has been replaced with the normatively referenced GB/T 2423.34 to accommodate Chinese technology.

condition;

- IEC 60068-2-6 (see 7.14) has been replaced with the normatively referenced GB/T 2423.10 to accommodate Chinese technology.

condition;

- IEC 60068-2-31 (see 7.15) has been replaced with the normatively referenced GB/T 2423.7 to accommodate my country's technical requirements.

condition;

--The terms and definitions for "normal operating conditions," "rated values," "factory test," and "type test" have been removed (see IEC 62271-215.

(3.10, 3.14, 3.16, 3.21 of 2021); the term and definition of "threshold voltage" (see 3.15) were added to adapt to my country's technical requirements.

Require;

--The requirements for solar radiation and altitude in normal operating conditions have been changed (see 4.1) to meet my country's technical requirements;

--The preferred value of 60 Hz for the rated frequency of the phase identifier has been removed from the ratings (see Chapter 5 of IEC 62271-215:2021).

To adapt to the operating frequency of my country's power grid;

--The rated voltage has been added to the ratings (see Chapter 5) to clarify the applicable voltage range of the product;

--The clause stating that phase identification results are unrelated to the voltage amplitude measured by the high voltage detection and display device (VDIS) has been removed (see...).

IEC 62271-215:2021, section 6.4, to meet domestic requirements for phase recognition products;

--The division between Phase Recognition Class A and Class B has been changed (see 6.5.1) to meet the requirements of domestic application scenarios;

--Added the requirement for configuring the input voltage of the phase recognizer with only a single prompt signal (see 6.5.2) to comply with domestic requirements for phase recognition.

Requirements for the product;

--The description of the probe and its adapter plug (see 6.8) have been changed to comply with domestic requirements for phase recognition products;

--The tolerance for the rated frequency has been changed from ±0.2% to ±0.5% (see 6.10) to meet my country's technical requirements;

--The requirement for vibration duration in the mechanical requirements has been removed, and the number of cycles has been adjusted (see 6.14.3) to comply with domestic requirements for phase.

Requirements for identifier products;

--Added drop test requirements to the mechanical requirements (see 6.14.5) to meet domestic requirements for phase recognition products;

--A warning label for out-of-range situations has been added (see 6.17) to comply with domestic requirements for phase recognition products;

--The requirement for ambient air temperature in type testing has been removed (see 7.1.2 of IEC 62271-215:2021) to comply with domestic requirements for phase...

Requirements for location recognition products;

--The maximum phase rotation test (see 7.1.2) has been added to the general rules for type testing to complete the test items;

--Added requirements for test specimens in type testing (see 7.1.2) to standardize the number of test specimens;

--Information required to be included in type test reports has been added (see 7.1.3) to comply with domestic requirements for inspection and testing reports;

Require;

--Added phase identifier types that are not applicable to power frequency voltage testing (see 7.3.3) to comply with domestic requirements for phase identifier products.

Require;

--Added requirements for voltage settings in the test setup for clearer display (see 7.4.1) to make the test more consistent with the actual product.

Require;

--The requirement for test circuits in the testing of test components (see 7.21.2 of IEC 62271-215-2021) has been removed to comply with national standards.

Internal requirements for phase recognition products;

--The durability test for the marking has been removed (see 7.22 of IEC 62271-215-2021) to comply with domestic requirements for phase recognition products.

Requirements;

--Added requirements for the selection level in the phase recognition guideline (see Chapter 9) to comply with domestic standards for phase recognition products.

Require;

--Added a statement to the user manual regarding limitations of the phase recognizer when there is only one prompt signal and the input voltage values are different.

Ming (see 11.2) to meet domestic requirements for phase recognition products.

The following editorial changes have been made to this document.

--To align with my country's standards system, the standard name has been changed to "Phase Identifier for High Voltage Detection and Display Devices";

--The chapter on "Terms and Definitions" has removed the URLs for the ISO and IEC terminology databases;

--Added a note with examples of threshold parameter adjustments (see 6.5.1) to comply with domestic requirements for phase recognition products;

--The note regarding the power frequency withstand voltage requirement has been removed (see 6.16.3).

--The references have been adjusted.

This document was proposed by the China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National Technical Committee on Standardization of High Voltage Switchgear (SAC/TC 65).

1 Scope

This document defines the terminology for phase identifiers used in high voltage detection and display devices, and specifies normal and special operating conditions, ratings, etc.

The guidelines provide product selection guidelines based on design and structural requirements, and describe the corresponding type testing and factory testing methods.

This document applies to high-voltage detection and display devices installed on indoor and outdoor high-voltage electrical equipment in accordance with GB/T 25081-2026.

Phase recognition device for display device.

The main function of a phase identifier is to provide a voltage and frequency reading before two energized parts of a high-voltage power grid are connected, under the same nominal voltage and frequency.

Clear evidence of the phase relationship between the two charged parts.

If the manufacturer and the user agree, all or part of the requirements in this document also apply to connections to high voltage detection and display devices.

Phase identification of other devices.

This document does not include phase identifiers used directly at exposed locations of live facilities under the nominal voltage of the power grid.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 2423.1-2008 Environmental testing of electrical and electronic products – Part 2: Test methods – Test A. Low temperature (IEC 60068-2)-1.2007, IDT) GB/T 2423.2-2008 Environmental testing of electrical and electronic products – Part 2: Test methods – Test B. High temperature (IEC 60068-2)-2.2007, IDT) (Sample) (GB/T 2423.7-2018, IEC 60068-2-31:2008, IDT) GB/T 2423.10 Environmental testing – Part 2: Test methods – Test Fc. Vibration (sine) (GB/T 2423.10-2019) IEC 60068-2-6:2007, IDT) GB/T 2423.34 Environmental testing – Part 2: Test methods – Test Z/AD. Temperature/humidity combined cyclic test (GB/T 2423.34-2024, IEC 60068-2-38:2021, IDT) GB/T 4208 Degrees of protection provided by enclosures (IP codes) (GB/T 4208-2017, IEC 60529:2013, IDT) GB/T 5465.2 Graphical symbols for electrical equipment - Part 2: Graphical symbols (GB/T 5465.2-2023, IEC 60417 Da-) Tabase. 2023-03, IDT GB/T 11022-2020 Common technical requirements for high-voltage AC switchgear and controlgear (IEC 62271-1:2017) MOD) GB/T 16927.1 High Voltage Testing Techniques – Part 1: General Definitions and Test Requirements (GB/T 16927.1-2011) IEC 60060-1:2010, MOD) GB/T 17626.2-2018 Electromagnetic compatibility testing and measurement techniques - Electrostatic discharge immunity test (IEC 61000-4-2).

2008, IDT)

GB/T 17626.3-2023 Electromagnetic compatibility testing and measurement techniques – Part 3: Radio frequency electromagnetic field radiated immunity testing (IEC 61000-4-3:2020, IDT)