Introduction
1 Scope
2 Normative references
3 Definitions
4 General requirements
4.1 General considerations
4.2 Environmental requirements
4.3 Power supply
5 Incoming supply connections and devices for
disconnecting and emergency stop
5.1 Incoming supply and equipment connections
5.2 Devices for disconnecting power supplies
5.3 Emergency stop
6 Protection against electric shock
6.1 Protection against direct contact
6.2 Protection against indirect contact
7 Environmental protection of the equipment
7.1 Protection against ingress of solid foreign
bodies
7.2 Protection against water
8 Equipotential bonding
8.1 General
8.2 Equipotential bonding as a protective measure
in case of indirect contact
8.3 Equipotential bonding for purpose of lightning
protection
8.4 Functional equipotential bonding
9 Auxiliary circuits
9.1 Supply to auxiliary circuits
9.2 Voltage for auxiliary circuits
9.3 Connection to the protective conductor
9.4 Overcurrent protection of auxiliary circuits
9.5 Measures to prevent danger from short circuits
to exposed conductive Parts or earth
9.6 Influence of capacitance and leakage resistance
10 Additional requirements for the application of
protective system
10.1 General safety requirements
10.2 Concept and scope definition
10.3 Hazard and risk analysis
10.4 Safety requirements allocation
10.5 Design
10.6 Installation and commissioning
10.7 Safety validation
10.8 Operation and maintenance
10.9 Modification and retrofit
11 Electrical equipment
11.1 General requirements
11.2 Creepage distances and clearances
11.3 Motors
11.4 Transformers
11.5 Switching devices
11.6 Operator control devices
11.7 Immersion electrodes
11.8 Trace heating systems
12 Cables and cords
12.1 General requirements
12.2 Insulation
12.3 Current carrying capacity
12.4 Conductors of separate circuits
13 Warning signs and item designation
13.1 Name plates, markings and identifications plates
13.2 Warning signs
13.3 Functional identification
13.4 Marking of electrical equipment
13.5 Item designations
14 Technical documentation
14.1 Documentation describing functions and connections
14.2 Documents for type approved components
14.3 Documentation of the applications software
Annex A (informative) Fault models of microelectronic
components
Annex B (informative) Configurations of programmable
safety devices (PSD) with reference to EN 61508
Annex C (informative) Life cycle of programmable safety
device of protective equipment
Annex D (informative) Management of functional safety
Bibliography