ISA 12.20.01 : 2009(R2014)

1 Purpose
2 Scope
3 References
4 Definitions
5 General requirements
6 Construction and testing requirements
   6.1 General
   6.2 Power sources
   6.3 Ignition control unit
   6.4 Primary wires
   6.5 Ignition coils
   6.6 Secondary leads
   6.7 Spark plugs
7 Spark containment
   7.1 General
   7.2 Secondary leads
   7.3 Spark plugs
   7.4 Terminations
8 Spark prevent
   8.1 General
   8.2 Terminations
   9 Spark detection/prevention
10 Documentation and marking
11 Test procedures
   11.1 Abrasion test for secondary leads or wiring
   11.2 Elevated temperature exposure test
   11.3 Chemical compatibility
   11.4 Vibration test
   11.5 Shielded secondary system tests
   11.6 Spark plug pressure and temperature tests
   11.7 Secondary lead assembly flashover tests
   11.8 Secondary lead UV degradation tests
   11.9 Secondary lead bending and dielectric voltage
         withstand tests
   11.10 Spark prevention test
   11.11 Primary and secondary terminations pull test
   11.12 Spark plug dielectric test
   11.13 Secondary lead or wiring insulation cut test
   11.14 Surface temperature test
   11.15 Impact test
   11.16 Secondary lead pull test

Enhances the safety of personnel by providing minimum requirements for electrical ignition systems for spark-ignited reciprocating internal combustion engines, parts of which are installed or operated in Class I, Division 2 or Zone 2 hazardous (classified) locations.