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ISA 12.20.01:2009

ISA 12.20.01:2009 General Requirements For Electrical Ignition Systems For Internal Combustion Engines In Class 1, Division 2 Or Zone 2, Hazardous (classified) Locations 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

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Table of Contents

1Purpose
2Scope
3References
4Definitions
5Generalrequirements
6Constructionandtestingrequirements
6.1General
6.2Powersources
6.3Ignitioncontrolunit
6.4Primarywires
6.5Ignitioncoils
6.6Secondaryleads
6.7Sparkplugs
7Sparkcontainment
7.1General
7.2Secondaryleads
7.3Sparkplugs
7.4Terminations
8Sparkprevent
8.1General
8.2Terminations
9Sparkdetection/prevention
10Documentationandmarking
11Testprocedures
11.1Abrasiontestforsecondaryleadsorwiring
11.2Elevatedtemperatureexposuretest
11.3Chemicalcompatibility
11.4Vibrationtest
11.5Shieldedsecondarysystemtests
11.6Sparkplugpressureandtemperaturetests
11.7Secondaryleadassemblyflashovertests
11.8SecondaryleadUVdegradationtests
11.9Secondaryleadbendinganddielectricvoltage
withstandtests
11.10Sparkpreventiontest
11.11Primaryandsecondaryterminationspulltest
11.12Sparkplugdielectrictest
11.13Secondaryleadorwiringinsulationcuttest
11.14Surfacetemperaturetest
11.15Impacttest
11.16Secondaryleadpulltest

Abstract

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.

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