SN EN 298:2012

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