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Thermal Endurance
& P# d8 @3 D2 E, Q& LThe temperature below which a class of critical property will not be unacceptably compromised through chemical thermal degradation, over the reasonable life of an electrical product (relative to a reference material having a confirmed, acceptable corresponding performance) is defined as the Relative Thermal Index (RTI). More than one RTI may be appropriate for a given material depending on the property requirements for a given application. In certain cases, higher temperatures are permitted if so specified by the end-use product standard. 9 w* p: T3 \. ?+ u% F
7 k2 \8 t! a: C' O/ O, c7 M2 V" u; yRTI Elec — Electrical RTI, associated with critical insulating properties.8 Q" v* m0 [3 B$ u6 M2 m
RTI Mech Imp — Mechanical Impact RTI, associated with critical impact resistance, toughness, elongation and flexibility properties.
. H/ {9 b6 k4 V# J, rRTI Mech Str — Mechanical Strength (Mechanical without Impact) RTI, associated with critical mechanical strength and structural integrity where impact resistance, resilience and flexibility may not be essential.
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