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Thermal Endurance 3 w. r' r1 D- L! \" k: E& ^
The 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. , u; b1 C2 _& H7 p
) _! {* E/ ]' k8 z: e. T0 gRTI Elec — Electrical RTI, associated with critical insulating properties.
8 \5 Z6 R. N: w# I8 i" o/ SRTI Mech Imp — Mechanical Impact RTI, associated with critical impact resistance, toughness, elongation and flexibility properties.
; W0 I( E2 n8 ~RTI 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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