1 Scope
This part of GB/T 24612 specified safety measures of operation of electrical equipments on power off in the workplace.
Note: These electrical equipments refer to mostly the electrical switchgear and controlgear, such as low-voltage switchgear and controlgear assemblies applicable to series of GB 7251.
This part is applicable to electrical equipment which is within life cycles such as operation and maintenance after being manufactured in accordance with the electrical safety requirements.
Note: This part, from the angle of the manufacturer, is used to instruct the preparation of the data provided for the users.
2 Normative References
The following standards contain provisions which, through reference in this Part of GB/T 24612, constitute provisions of this Part. For dated reference, subsequent modification to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this Part are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this Part.
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Procedure of Safe power-off Operation
5 Lockout and Tagout for Disconnected Charged Body and Circuit Parts when Working on or nearby them
5.1 General
5.2 Principle of Lockout and Tagout Operation
5.3 Working Responsibility
5.4 Control of Electric Shock Prevention
5.5 Devices
6 Temporary Protective Earthing Device
6.1 Arrangement
6.2 Current Capacity
6.3 Devices Licensing
6.4 Impedance
Bibliography
