GB/T 40431-2021 English PDF (GBT40431-2021)

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GB/T 40431-2021: Guidelines for personal safety restraint in electrical operation place
GB/T 40431-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.020
CCS K 09
Guidelines for Personal Safety Restraint in Electrical
Operation Place
ISSUED ON. AUGUST 20, 2021
IMPLEMENTED ON. MARCH 1, 2022
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3 
Introduction... 4 
1 Scope... 5 
2 Normative References... 5 
3 Terms and Definitions... 5 
4 Principles of Electrical Personal Safety Restraint... 6 
5 Hazard Identification of Electrical Personal Safety... 7 
6 Measures of Electrical Personal Safety Restraint... 8 
7 Electrical Safety Restraint of Personnel... 8 
7.1 Personnel Information... 8 
7.2 Electrical Safety Risks of Personnel... 9 
7.3 Measures of Electrical Safety Restraint... 9 
8 Electrical Safety Restraint during Man-machine Interaction... 11 
8.1 Forms of Man-machine Interaction... 11 
8.2 Electrical Safety Risks during Manual Operation... 11 
8.3 Electrical Safety Risks during Manual Intervention... 12 
8.4 Electrical Safety Risks during Man-machine Collaborative Operation... 12 
8.5 Other Electrical Safety Risks... 13 
8.6 Measures of Electrical Safety Restraint... 13 
9 Electrical Safety Restraint during Personnel Interaction... 14 
9.1 Forms of Personnel Interaction... 14 
9.2 Electrical Safety Risks during Interactions on Work Contents... 14 
9.3 Electrical Safety Risks during Interactions on Non-work Contents... 14 
9.4 Measures of Electrical Safety Restraint... 15 
Bibliography... 16 
Guidelines for Personal Safety Restraint in Electrical
Operation Place
1 Scope
This document establishes the principles of electrical personal safety restraint in electrical
operation place, and provides the contents and measures of electrical safety restraint for
personnel, man-machine interaction and personnel interaction.
This document is applicable to the electrical safety restraint of personnel in places where low-
voltage electrical equipment and systems are operated.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 4025-2010 Basic and Safety Principles for Man-machine Interface, Marking and
Identification - Coding Principles for Indicators and Actuators
GB/T 4026-2019 Basic and Safety Principles for Man-machine Interface, Marking and
Identification - Identification of Equipment Terminals, Conductor Terminations and Conductors
GB/T 4205-2010 Basic and Safety Principles for Man-machine Interface (MMI), Marking and
Identification - Actuating Principles
GB/T 4208-2017 Degrees of Protection Provided by Enclosure (IP code)
GB/T 22696 (all parts) Electrical Equipment Safety - Risk Assessment and Risk Reduction
GB/T 29481-2013 Signs for Electrical Safety
GB/T 33980-2017 Guide on Inclusion of Electrical Safety Aspects in Electro-technical Product
Instructions
GB/T 34924-2017 Guidelines for Safety Related Risk Assessment and Risk Reduction for Low
Voltage Equipment
3 Terms and Definitions
The following terms and definitions are applicable to this document.
3.1 Electrical Personal Safety
Electrical personal safety refers to the exemption of personnel from injuries caused by various
electrical accidents in electrical equipment and systems in the electrical field.
3.2 Restraint
Restraint refers to the proposal of measures to ensure personal safety.
3.3 Collaborative Operation
Collaborative operation specifies the behavior of a specially designed electrical equipment and
system in a collaborative workspace with personnel.
[source. GB/T 36008-2018, 3.1, modified]
3.4 Collaborative Workspace
Collaborative workspace refers to a workspace where electrical equipment and systems and
personnel can simultaneously execute tasks during production activities in the operation space.
[source. GB/T 36008-2018, 3.3, modified]
3.5 Protective Separation Distance
Protective separation distance refers to the shortest allowable distance between any hazardous
movable part of electrical equipment and systems and personnel in the collaborative workspace.
[source. GB/T 36008-2018, 3.6, modified]
4 Principles of Electrical Personal Safety Restraint
The electrical personal safety restraint preferentially complies with the relevant regulations on
personal safety protection and the requirements of electrical safety technology for the
acceptable risk level of personnel.
The electrical personal safety restraint should be proposed in accordance with the following
principles, but are not limited to.
---traceability, which is proposed in accordance with the electrical safety risks confronting
personnel in the electrical operation place;
---operability, which is proposed in combination with the performance and application of
electrical equipment and systems;
---time-domain characteristics, which considers the movement trajectories and changes of
personnel and certain equipment (for example, movable equipment) in the electrical
operation place with the passage of time;
---application;
---maintenance and repair.
The electrical safety hazards of electrical equipment and systems are usually triggered by
potential risks or unreasonable design in terms of electric shock, energy, ignition, heat, man-
machine interface and ergonomics, etc. The relevant electrical safety hazards shall comply with
the stipulations of GB/T 22696 (all parts).
The hazard identification of operating scenarios should consider the contents and characteristics
of operating scenarios. The operating scenarios may include routine workspace, safety
protection space, collaborative workspace and environmental factors throughout the site.
Electrical safety hazards of operating scenarios are usually triggered by changes in
environmental factors, unreasonable safety distances (for example, protective separation
distance in collaborative workspace) and unsafe states, for example, overlapped or intersected
movement trajectories.
6 Measures of Electrical Personal Safety Restraint
Electrical safety restraint measures should be taken in accordance with the following priorities
during the design stage.
a) inherent safety measures, which may include inherent safety design measures for
electrical equipment and systems, as well as inherent safety measures for personnel;
b) protective measures, which may include measures proposed for electrical equipment
and systems, such as. hazard protection and enclosure protection, etc., as well as
measures proposed for personnel, for example, wearing protective equipment;
c) information of application, including instructions delivered with electrical equipment
and systems, safety signs on electrical equipment and systems, safety signs in
operation place and operation manuals for personnel, etc.
During the application stage, electrical safety restraint measures should be taken from
additional protective equipment, personal protective equipment and training, etc.
7 Electrical Safety Restraint of Personnel
7.1 Personnel Information
The personnel information that should be considered includes, but is not limited to.
---static...