Standard
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AS/NZS 2500:2020
[Current]Safe use of medical electrical equipment in health care
This Standard sets out guidelines for the safe use of electrical medical equipment in patient care.
Published: 12/06/2020
Pages: 46
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Introduction
1 Scope and general
1.1 Scope
1.2 Application
1.2.1 Setting
1.2.2 Personnel
1.3 Normative references
1.4 Terms and definitions
2 Nature of electricity
2.1 Need for care
2.2 Supply systems
2.3 Function of fuses and circuit-breakers
2.4 Socket-outlets
2.4.1 General
2.4.2 Colour coding of socket-outlets
2.5 Basic equipment safety
2.5.1 Forms of construction
2.5.2 Classification of applied parts
2.6 Leakage current
3 Nature of hazards
3.1 General
3.2 Electric shock
3.2.1 Causes of electric shock
3.2.2 Contributing factors
3.2.3 Levels of susceptibility to electric shock
3.2.3.1 General
3.2.3.2 Macroshock
3.2.3.3 Microshock
3.2.3.4 Additional considerations for high-frequency current
3.2.3.5 Effect of non-alternating or direct current (DC)
3.2.3.6 Damage to nerves
3.3 Thermal hazards
3.3.1 General
3.3.2 Electric burns
3.3.3 Thermal burns
3.3.4 Temperature of infused fluids
3.3.5 Fire and explosion
3.4 Radiant energy hazards
3.4.1 General
3.4.2 Ultrasonic energy
3.4.3 Laser and intense light sources
3.5 Electromagnetic interference
3.6 Electrostatic hazards
3.7 Loss of electrical power
3.8 Software hazards
3.8.1 General
3.8.2 Cybersecurity threats
3.8.3 Software updates
3.9 Equipment configuration
3.10 Alarm management
3.11 Data integration
3.12 Impact of repairs
4 Compatibility of medical procedure, equipment and patient areas
4.1 Safety triangle
4.2 Medical procedures
4.2.1 General
4.2.2 Inadvertent contact with live conductors
4.2.3 Body-type procedure — Applied parts not involving the heart
4.2.4 Cardiac-type procedure — Applied parts involving the heart
4.3 Safe electrical environment
4.3.1 Protection levels
4.3.2 Components of protective wiring system
4.3.3 Use of socket-outlets in cardiac-protected patient areas
4.4 Applied parts of medical electrical equipment
4.4.1 Classification
4.4.2 Protection under fault conditions
4.5 Safe use of medical electrical equipment
4.6 Temporary arrangements for cardiac-type procedures
4.7 Home care medical procedures
4.8 Home care medical equipment – NZ only
5 Administration
5.1 Policies and procedures
5.2 Recognition and location of electrically susceptible patients
5.2.1 General
5.2.2 Design of patient areas
5.3 Training
5.4 Documentation
5.5 Medical electrical equipment
5.5.1 Procurement of equipment
5.5.2 Equipment used but not owned by the responsible organization
5.5.3 Operator instructions
5.5.4 Life-supporting equipment
5.5.5 Mains power supply failure
5.5.6 Back-up equipment
5.6 Maintenance of medical electrical equipment and patient areas
5.6.1 Equipment maintenance
5.6.2 Maintenance of electrical systems of patient areas
5.6.3 Clinical impact of maintenance of distribution equipment and switchboards
5.7 Modification of medical electrical equipment
5.7.1 Australia
5.7.2 New Zealand
5.8 Non-medical electrical equipment
5.8.1 General
5.8.2 Cleaning equipment
5.8.3 Entertainment equipment
5.8.4 Patient-comfort equipment
5.8.5 Patient-supplied equipment
5.8.6 Mobile communications
5.9 Medical equipment malfunction or failure
5.9.1 General
5.9.2 Fault tags
5.9.3 Adverse event reporting
5.9.4 Repair of equipment
6 General use practices
6.1 General
6.2 User observation and checks before use
6.3 Precautions to be observed during use
6.4 User precautions/practices to be observed after use
6.5 Additional precautions to be observed in the use of high-energy apparatus
6.6 Flexible cords and plugs
6.6.1 Inspections
6.6.2 Faulty cords and plugs
6.7 Double adaptors and extension cords
6.8 Medical equipment systems
6.9 Protective devices in patient areas
6.9.1 Introduction
6.9.2 RCD-protected supply
6.9.2.1 General
6.9.2.2 Socket-outlets
6.9.2.3 Electrical leakage
6.9.3 Isolated supply
6.9.3.1 General
6.9.3.2 Socket-outlets
6.9.3.3 Electrical leakage alarm and its restoration
6.10 Re-use of accessories labelled for “single use only”
Bibliography
Cited references in this standard
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