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BSI 22/30446063 DC 2022

BSI 22/30446063 DC 2022

$24.66

BS EN 61010-1 AMD2. Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 1. General requirements

Published By Publication Date Number of Pages
BSI 2022 174
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PDF Catalog

PDF Pages PDF Title
14 FOREWORD
17 INTRODUCTION
18 1 Scope and object
1.1 Scope
1.1.1 Equipment included in scope
1.1.2 Equipment excluded from scope
19 1.1.3 Computing equipment
1.1.4 Gas and vapor detectors or sensors
1.2 Object
1.2.1 Aspects included in scope
1.2.2 Aspects excluded from scope
1.3 Verification
20 1.4 Environmental conditions
1.4.1 Normal environmental conditions
1.4.2 Extended environmental conditions
2 Normative references
22 3 Terms and definitions
3.1 Equipment and states of equipment
23 3.2 Parts and accessories
3.3 Quantities
24 3.4 Tests
3.5 Safety terms
26 3.6 Insulation
27 4 Tests
4.1 General
4.2 Sequence of tests
4.3 Reference test conditions
4.3.1 Environmental conditions
28 4.3.2 State of equipment
4.3.2.1 General
4.3.2.2 Position of equipment
4.3.2.3 Accessories
4.3.2.4 Covers and removable parts
4.3.2.5 Electrical supply source
29 4.3.2.6 Input and output voltages
4.3.2.7 Earth terminals
4.3.2.8 Controls
4.3.2.9 Connections
4.3.2.10 Load on motors
4.3.2.11 Output
4.3.2.12 Duty cycle
4.3.2.13 Loading and filling
4.3.2.14 Special External Services
30 4.4 Testing in single fault condition
4.4.1 General
4.4.2 Application of fault conditions
4.4.2.1 General
4.4.2.2 Protective impedance
4.4.2.3 Protective conductor
4.4.2.4 Equipment or parts for short-term or intermittent operation
4.4.2.5 Motors
31 4.4.2.6 Capacitors
4.4.2.7 Transformers relied upon for safety
4.4.2.7.1 General
4.4.2.7.2 Short circuit
4.4.2.7.3 Overload
4.4.2.8 Outputs
4.4.2.9 Equipment for more than one supply
32 4.4.2.10 Cooling
4.4.2.11 Heating devices
4.4.2.12 Insulation between circuits and parts
4.4.2.13 Interlocks
4.4.2.14 Voltage selectors
4.4.2.15 Interruption of electrical supply and other energy sources
4.4.3 Duration of tests
4.4.3.1 General
4.4.3.2 Current limiting devices
4.4.3.3 Fuses
33 4.4.4 Conformity after application of fault conditions
4.4.4.1 General
4.4.4.2 Touch Temperature
4.4.4.3 Spread of fire
4.4.4.4 Other hazards
5 Marking and documentation
5.1 Marking
5.1.1 General
34 5.1.2 Identification
5.1.3 External electrical supply sources
36 5.1.4 Fuses
5.1.5 Terminals, connections and operating devices
5.1.5.1 General
5.1.5.2 Terminals
5.1.6 Switches and circuit-breakers
37 5.1.7 Equipment protected by double insulation or reinforced insulation
5.1.8 Field-wiring terminal boxes
5.1.9 Specially protected equipment
5.1.10 Weight
5.1.11 Packaging
5.2 Warning markings
38 5.3 Durability of markings
5.4 Documentation
5.4.1 General
39 5.4.2 Equipment ratings
5.4.3 Equipment installation
40 5.4.4 Equipment operation
5.4.5 Equipment maintenance and service
41 5.4.6 Integration into systems or effects resulting from special conditions
6 Protection against electric shock
6.1 General
6.1.1 Requirements
6.1.2 Exceptions
6.2 Determination of accessible parts
6.2.1 General
42 6.2.2 Examination
6.2.3 Openings above parts that are hazardous live
43 6.2.4 Openings for pre-set controls
6.3 Limit values for accessible parts
6.3.1 Levels in normal condition
6.3.2 Levels in single fault condition
46 6.4 Primary means of protection
6.4.1 General
6.4.2 Enclosures and protective barriers
6.4.3 Basic insulation
6.4.4 Impedance
6.5 Additional means of protection in case of single fault conditions
6.5.1 General
47 6.5.2 Protective bonding
6.5.2.1 General
6.5.2.2 Integrity of protective bonding
48 6.5.2.3 Protective conductor terminal
49 6.5.2.4 Impedance of protective bonding of plug-connected equipment
6.5.2.5 Impedance of protective bonding of permanently connected equipment
50 6.5.2.6 Transformer protective bonding screen
6.5.3 Supplementary insulation and reinforced insulation
6.5.4 Protective impedance
6.5.5 Automatic disconnection of the supply
51 6.5.6 Current- or voltage-limiting device
6.6 Connections to external circuits
6.6.1 General
6.6.2 Terminals for external circuits
6.6.3 Circuits with terminals which are hazardous live
52 6.6.4 terminals for stranded conductors
6.7 Insulation requirements
6.7.1 The nature of insulation
6.7.1.1 General
53 6.7.1.2 Clearances
6.7.1.3 Creepage distances
6.7.1.4 Solid insulation
54 6.7.1.5 Requirements for insulation according to type of circuit
6.7.1.6 Combinations of insulation material and pollution degrees
55 6.7.2 Insulation for mains circuits of overvoltage category II with a nominal supply voltage up to 300 V
6.7.2.1 Clearances and creepage distances
6.7.2.2 Solid insulation
6.7.2.2.1 General
56 6.7.2.2.2 Moulded and potted parts
6.7.2.2.3 Insulating layers of printed wiring boards
57 6.7.2.2.4 Thin-film insulation
58 6.7.3 Insulation for secondary circuits derived from mains circuits of overvoltage category II up to 300 V
6.7.3.1 General
6.7.3.2 Clearances
59 6.7.3.3 Creepage distances
60 6.7.3.4 Solid insulation
6.7.3.4.1 General
61 6.7.3.4.2 Moulded and potted parts
62 6.7.3.4.3 Insulating layers of printed wiring boards
6.7.3.4.4 Thin-film insulation
63 6.8 Procedure for voltage tests
6.8.1 General
64 6.8.2 Humidity preconditioning
6.8.3 Test procedures
6.8.3.1 The a.c. voltage test
65 6.8.3.2 The d.c. voltage test
6.8.3.3 The impulse voltage test
6.9 Constructional requirements for protection against electric shock
6.9.1 General
66 6.9.2 Insulating materials
6.9.3 Colour coding
6.10 Connection to the mains supply source and connections between parts of equipment
6.10.1 Mains supply cords
67 6.10.2 Fitting of non-detachable mains supply cords
6.10.2.1 Cord entry
6.10.2.2 Cord anchorage
68 6.10.3 Plugs and connectors
69 6.11 Disconnection from supply source
6.11.1 General
6.11.2 Exceptions
6.11.3 Requirements according to type of equipment
6.11.3.1 Permanently connected equipment and multi-phase equipment
6.11.3.2 Single-phase cord-connected equipment
70 6.11.4 Disconnecting devices
6.11.4.1 General
6.11.4.2 Switches and circuit-breakers
6.11.4.3 Appliance couplers and plugs
7 Protection against mechanical hazards
7.1 General
71 7.2 Surfaces, edges or corners
7.3 Moving parts
7.3.1 General
7.3.2 Exceptions
7.3.3 Risk assessment for mechanical hazards
72 7.3.4 Limitation of force and pressure
73 7.3.5 Gap limitations between moving parts
7.3.5.1 Gap limitations between moving parts – Access normally allowed
7.3.5.2 Gap limitations between moving parts – Access normally prevented
75 7.3.6 Unwanted movement
7.3.7 Over-travel
7.3.8 Risk of uncontrolled movement
7.3.9 Safety distances
76 7.4 Instability
7.5 Provisions for lifting and carrying
7.5.1 General
7.5.2 Handles and grips
77 7.5.3 Lifting devices and supporting parts
7.5.4 Mechanical handling of packaged equipment
7.6 Wall mounting
7.7 Expelled parts (Ejected Objects)
78 7.8 Hand-transmitted vibration
7.9 Protective barriers and enclosures
7.9.1 General
7.9.2 Fixed protective barriers
7.9.3 Movable protective barriers
79 8 Resistance to mechanical stresses
8.1 General
8.2 Enclosure rigidity tests
8.2.1 Static test
80 8.2.2 Impact test
81 8.3 Drop test
8.3.1 Equipment other than hand-held equipment and direct plug-in equipment
8.3.2 Hand-held equipment and direct plug-in equipment
82 9 Protection against the spread of fire
9.1 General
84 9.2 Eliminating or reducing the sources of ignition within the equipment
9.3 Containment of fire within the equipment, should it occur
9.3.1 General
9.3.2 Constructional requirements
88 9.4 Limited-energy circuit
90 9.5 Requirements for equipment containing or using flammable liquids
9.6 Overcurrent protection
9.6.1 General
91 9.6.2 Permanently connected equipment.
92 10 Equipment touch temperature limits and resistance to temperatures
10.1 Surface temperature limits for protection against burns and frostbite
93 10.2 Temperatures of windings
10.3 Other temperature measurements
94 10.4 Conduct of temperature tests
10.4.1.1 General
10.4.1.2 Temperature measurement accuracy
10.4.1.3 Temperature sensors
10.4.1.4 Sensor attachment
95 10.4.1.5 Measurement duration
10.4.1.6 Measurement of cycling temperatures
10.4.1.7 Recorded Temperature
10.4.1.8 Change-in-resistance method
10.4.2 Temperature measurement of heating equipment
96 10.4.3 Equipment intended for installation in a cabinet or a wall
10.5 Resistance to temperatures
10.5.1 Integrity of clearances and creepage distances
10.5.2 Polymeric enclosures
10.5.3 Insulating material
97 11 Protection against hazards from fluids and solid foreign objects
11.1 General
11.2 Cleaning
11.3 Spillage
98 11.4 Overflow
11.5 Battery electrolyte
11.6 Equipment rated with a degree of ingress protection (IP code)
11.6.1 General
11.6.2 Conditions for testing
99 11.6.3 Protection against solid foreign objects (including dust)
11.6.4 Protection against water
11.7 Fluid pressure and leakage
11.7.1 Maximum pressure
100 11.7.2 Leakage and rupture at high pressure
101 11.7.3 Leakage from low-pressure parts
11.7.4 Overpressure safety device
12 Protection against injury from radiation, sonic and ultrasonic pressure
12.1 General
102 12.2 Equipment producing ionizing radiation
12.2.1 Ionizing radiation
12.2.1.1 General
12.2.1.2 Equipment intended to emit radiation
103 12.2.1.3 Equipment not intended to emit radiation
12.2.2 Accelerated electrons
12.3 Optical radiation
104 12.4 Microwave radiation
12.5 Protection against harm from acoustic noise
12.5.1 General
105 12.5.2 Sound Pressure Level (SPL)
12.5.3 Exposure Threshold Values and Noise Protection Measures
12.5.4 Ultrasonic pressure
106 12.6 Laser sources
13 Protection against liberated gases and substances, explosion and implosion
13.1 Poisonous and injurious gases and substances
13.2 Explosion and implosion
13.2.1 Components
13.2.2 Batteries and battery charging
107 13.2.3 Implosion of cathode ray tubes
14 Components and subassemblies
14.1 General
108 14.2 Motors
14.2.1 Motor temperatures
14.2.2 Series excitation motors
14.3 Overtemperature protection devices
109 14.4 Fuse holders
14.5 Mains voltage selection devices
14.6 Mains transformers tested outside equipment
14.7 Printed wiring boards
110 14.8 Capacitors
14.9 Circuits used to limit transient overvoltages
111 14.10 Microprocessor and/or microprocessor-system as a protective component
15 Protection by interlocks
15.1 General
15.2 Prevention of reactivating
15.3 Reliability
16 Protection against harm related to the use of the equipment
16.1 General
112 16.2 Unattended operation
16.3 Combination of equipment
16.4 Manually-moved mobile equipment
16.5 Prevention of trapping
113 16.6 Unintended actuation of controls
16.7 Incorrect fitment of parts
16.8 Ergonomic aspects
114 Annex A (normative) Measuring circuits for touch current (see 6.3)
A.1 Measuring circuits for a.c. with frequencies up to 1 MHz and for d.c.
115 A.2 Measuring circuits for sinusoidal a.c. with frequencies up to 100 Hz and for d.c.
116 A.3 Current measuring circuit for electrical burns at high frequencies
117 A.4 Current measuring circuit for wet location
118 Annex B (normative) Standard test fingers (see 6.2)
120 Annex C (normative) Measurement of clearances and creepage distances
124 Annex D (normative) Parts between which insulation requirements are specified (see 6.4 and 6.5.3)
127 Annex E (deleted)
128 Annex F (normative) Routine tests
F.1 General
F.2 Protective earth
F.3 Mains circuits
F.3.1 General
129 F.3.2 Mains circuits with voltage limiting devices
F.4 Floating circuits
130 Annex G (informative) Leakage and rupture from fluids under pressure
G.1 General
G.2 Pressures above 2 MPa and a product pressure and volume greater than 200 kPa(l
G.2.1 General
131 G.2.2 Conduct of hydrostatic tests for G.2.1
132 G.2.3 Initial tests
G.2.4 Modifications to minimize leakage
G.2.5 Additional tests if modification succeeded in minimizing leakage
133 G.2.6 Additional test if modifications failed to reduce leakage
G.3 Pressures between 50 kPa and 2 MPa, and pressure times volume above 200 kPa(l
G.4 Pressures below 50 kPa, or pressure times volume below 200 kPa(l
G.5 Overpressure safety devices
135 Annex H (normative) Qualification of conformal coatings for protection against pollution
H.1 General
H.2 Technical properties
H.3 Qualification of coatings
138 Annex I (normative) Line-to-neutral voltages for common mains supply systems
139 Annex J (informative) Risk Management
J.1 Risk management procedure
140 J.2 Achieving tolerable risk
141 J.3 An application of risk assessment procedures
142 J.4 As Low As Reasonably Practicable
J.5 Risk reduction using functional safety standards
J.5.1 General
143 J.5.2 Determination of the relevant SIL or PL
144 J.5.3 Architecture
J.5.4 Application of the level
J.5.5 Process and documentation
145 Annex K (normative) Insulation requirements not covered by 6.7
K.1 Insulation for mains circuits
K.1.1 General
146 K.1.2 Clearances and creepage distances for mains circuits
147 K.1.3 Solid insulation for mains circuits
K.1.3.1 General
149 K.1.3.2 Moulded and potted parts
K.1.3.3 Inner insulating layers of printed wiring boards
150 K.1.3.4 Thin-film insulation
151 K.2 Insulation in secondary circuits
K.2.1 General
K.2.2 Clearances
154 K.2.3 Creepage distances
155 K.2.4 Solid insulation
K.2.4.1 General
156 K.2.4.2 Moulded and potted parts
K.2.4.3 Inner insulating layers of printed wiring boards
157 K.2.4.4 Thin-film insulation
K.3 Insulation in circuits not addressed in 6.7, Clause K.1 or Clause K.2
K.3.1 General
158 K.3.2 Clearance calculation
161 K.3.3 Clearances in circuits having recurring peak voltages, or having working voltages with frequencies above 30 kHz
162 K.3.4 Creepage distances
K.3.5 Solid insulation
163 K.4 Reduction of transient overvoltages by the use of overvoltage limiting devices
164 Annex L (informative) Index of defined terms
166 Annex M (normative) Flammability test for magnesium alloy fire enclosures or flame barriers (see 9.3.2)
M.1 General
M.2 Samples
M.3 Mounting of samples
M.4 Test flame
M.5 Test procedure
167 Annex N (informative) Human Behaviour
N.1 General
N.2 User Types
168 N.3 Use Conditions
N.4 Determining Use Situations
169 N.5 Assessment of Use Conditions
171 Annex O (informative) Tests after repair
O.1 Protective earth
O.2 Reliability of insulation
O.3 Leakage current

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BSI 22/30446063 DC 2022
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