GB/T 16927.4-2014 (English Version) PDF

Standard No.: GB/T 16927.4-2014
Language: Chinese, Available in English version
Release Date: 2014
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 16927.4-2014

Scope: This part of GB/T 16927 stipulates the following content:--Define the terms used;--Define the parameters and tolerances;--Give a method for estimating the measurement uncertainty of large currents; Requirements;--give the method of approval of the measurement system and the calibration method of its components;--give the procedure for the measurement system to meet the requirements of this part, including the limits of measurement uncertainty. This section applies to high-current testing and measurement of high-voltage and low-voltage equipment. Applicable current types include: steady-state direct current, short-duration direct current (such as high-capacity direct current test), steady-state alternating current, short-duration alternating current (such as high-capacity alternating current test) and impulse current. This section can be used for current tests greater than 100 A, and this section can be referred to when a current of less than 100 A appears in these tests.

GB/T 16927.4-2014 Referenced Document

GB 1984 High-voltage alternating-current circuit-breakers*， 2014-06-24 Update
GB/T 16927.1-2011 High-voltage test techniques.Part 1:General definitions and test requirements
GB/T 7676.2-1998 Direct acting indicating analogue electrical measuring instruments and their accessories. Part 2: Special requirements for ammeters and voltmeters
JJF 1059.1-2012 Evaluation and Expression of Uncertainty in Measurement

2014 GB/T 16927.4-2014 High voltage and high current test techniques.Part 4: Definitions and require.nents for test currents and measuring systems