Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Conditions for testing and measuring tolerances
6 Constructional requirements
6.1 General
6.2 Protection provided by the enclosure
6.3 Electrical equipment
6.4 Electrical components
6.4.1 Performance of electrical components
6.4.2 Test
6.5 Long-term performance
6.5.1 General
6.5.2 Stress test and long-term performance test
7 Functional requirements
7.1 General
7.2 Programme
7.2.1 General
7.2.2 Safety actions
7.2.3 Flame failure
7.2.4 Recycling
7.2.5 Spark restoration
7.2.6 Supervision of other external devices during the
start-up sequence
7.2.7 Start following safety shut down
7.2.8 Inter-purge and inter-waiting time
7.3 Times
7.3.1 General
7.3.2 Purge and waiting times
7.3.3 Safety times
7.3.4 Response time in case of flame failure
7.3.5 Reaction time to achieve safety shut-down
7.3.6 Reaction time to achieve lock-out
7.4 Flame detector device
7.5 Lock-out and reset device
7.5.1 Lock-out function
7.5.2 Reset device
7.6 Performance tests
7.6.1 At ambient temperature
7.6.2 At low temperature
7.6.3 At high temperature
8 Protection against environmental influences
8.1 Temperature range
8.2 Supply voltage variations
8.2.1 General
8.2.2 Requirements for operation below 85 % of rated voltage
8.3 Supply voltage dips, short interruptions and voltage
variations immunity
8.3.1 General
8.3.2 Supply voltage dips, short interruptions and
voltage variations test
8.4 Supply frequency variations
8.4.1 General
8.4.2 Supply frequency variations test
8.5 Surge immunity
8.5.1 General
8.5.2 Surge immunity test
8.6 Electrical fast transient/burst immunity
8.6.1 General
8.6.2 Electrical fast transient/burst immunity test
8.7 Electromagnetic conducted and radiated disturbances
induced by radio-frequency fields
8.7.1 Immunity to conducted disturbances, induced
by radio-frequency fields
8.7.2 Immunity to radiated disturbances, induced
by radiated fields
8.8 Electrostatic discharge immunity
8.8.1 General
8.8.2 Electrostatic discharge immunity test
9 Protection against internal faults
9.1 Internal faults
9.1.1 General
9.1.2 Systems for non-permanent operation: first fault
9.1.3 Systems for non-permanent operation: second fault
9.1.4 Systems for permanent operation: first fault
9.1.5 Systems for permanent operation: second fault
9.1.6 Systems for permanent and non-permanent operation: faults
during lock-out or safety-shutdown
9.2 Circuit and construction evaluation
9.2.1 Test conditions
9.2.2 Test criteria
10 Additional requirements for complex electronics
10.1 General
10.2 Fault avoidance and fault tolerance
10.3 Documentation
10.4 Assessment
11 Marking, installation and operating instructions
11.1 Marking
11.2 Installation and operating instructions
11.3 Warning note
Annex A (normative) Electrical/electronic component fault modes
Annex B (informative) Functional characteristics of burner control
systems, to be given by the appliance standard
Annex C (normative) Requirements for DC supplied burner
C.1 Scope
C.2 Thermal stress test
C.3 Long term performance test [by the manufacturer]
C.4 At ambient temperature
C.5 Supply voltage variations
C.6 Supply voltage, supply frequency, surge immunity,
electrical fast transient/burst, electromagnetic
conducted disturbances
C.7 Electrical transient conduction immunity for Type
B only
C.7.1 General
C.7.2 Electrical transient conduction immunity test
Annex ZA (informative) Clauses of this European Standard addressing
essential requirements or other provisions of EU Directives
Bibliography