Standard No.:	GB/T 5273-2016
Chinese Name:	高压电器端子尺寸标准化
English Name:	Dimensional standardisation of terminals for high-voltage apparatus
Professional Classification:	K43 High voltage switchgear
ICS Classification:	29.120.30
Issued by:
Issued on:	2016-04-25
Implemented on:	2016-11-01
Status:	VALID
Replace:	GB/T5273-1985 Terminals for transformers,high-voltage apparatus and bushings
Language:	English
File Format:	PDF
Word Count:	8000 words
Price(USD):	240 (USD)
Delivery:	via email in 1-3 business day

1 Overview

1.1 Scope

This standard specifies the types and dimensions as well as technical requirements of terminals for high-voltage apparatus.

This standard is applicable to high-voltage (HV) terminal of high-voltage apparatus in system with indoor and outdoor voltage being 3,000 V or above. However, its application to other equipment is not excluded. No coordination between dimensions and the rated normal current can be given.

This standard is primarily applicable to the following equipment:

——Power transformer (including thereof the terminal of low voltage side);

——Bushing (including wall bushing and bushing used for high-voltage switchgear and transformer);

——High-voltage breaker;

——High-voltage disconnector;

——High voltage load switch;

——High voltage grounding switch;

——By-pass switch;

——High-voltage automatic recloser;

——High-voltage automatic sectionalizer;

——High-voltage fuse;

——High voltage load switch - fuse-combination unit;

——High voltage contactor - fuse-combination unit;

——Metal-enclosed switchgear;

——High-voltage/low-voltage prefabricated substation;

——Gas-insulated metal-enclosed switchgear (GIS);

——Hybrid gas insulated switchgear (H-GIS);

——Conventional air insulated switchgear (C-AIS);

——Metal-enclosed busbar;

——Cable distribution box;

——Current transformer (excluding its secondary terminal);

——Current-limiting reactor, etc.

This standard is also applicable to the following equipment:

——Grounding switch, power capacitor, arrester and high voltage contactor;

——Transformers other than power transformer (e.g., furnace transformer, rectifier transformer, test transformer, etc.), voltage transformer and shunt reactor;

——High-voltage fuse of protective voltage transformer and power capacitor;

——High-voltage power cable, etc.