IEC 60695-11-11 pdf – Fire hazard testing – Part 11-11: Test flames – Determination of the characteristic heat flux for ignition from a non-contacting flame source

IEC 60695-11-11 pdf – Fire hazard testing – Part 11-11: Test flames – Determination of the characteristic heat flux for ignition from a non-contacting flame source
1Scope
This part of lEC 60695 describes a test method used to determine the characteristic heat flux for ignition(CHFI) from a non-contacting flame source for materials used in electrotechnicalproducts，sub-assemblies or their parts. lt provides a relationship between ignition time andincident heat flux.A test specimen cut from an end-product or sub-assembly can be tested by this test method.
This part of lEC 60695 can be used in the fire hazard assessment and fire safety engineeringprocedures described in lEC 60695-1-10,IEC 60695-1-11 and lEC 60695-1-12.
This basic safety publication is intended for use by technical committees in the preparation ofstandards in accordance with the principles laid down in IEC Guide 104 and ISo/IEC Guide 51.
One of the responsibilities of a technical committee is，wherever applicable,to make use ofbasic safety publications in the preparation of its publications.The requirements, test methods
or test conditions of this basic safety publication will not apply unless specifically referred to orincluded in the relevant publications.
2Normative references
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies.
For undated’ references,the latestedition of the referenced document (including anyamendments) applies.
IEC 60695-1-10,Fire hazard testing – Part 1-10: Guidance for assessing the fire hazard ofelectrotechnical products – General guidelines
IEC 60695-1-11,Fire hazard testing – Part 1-11: Guidance for assessing the fire hazard ofelectrotechnical products – Fire hazard assessment
IEC 60695-1-12， Fire hazard testing – Part 1-12: Guidance for assessing the fire hazard ofelectrotechnical products – Fire safety engineering
IEC 60695-4，Fire hazard testing – Part 4:Terminology concerning fire tests for electrotechnicalproducts
IEC 60695-11-4，Fire hazard testing – Part 11-4: Test flames – 50 W flame – Apparatus andconfirmational test method
IEC GUIDE 104,The preparation of safety publications and the use of basic safety publicationsand group safety publications
ISO/IEC Guide 51,Safety aspects – Guidelines for their inclusion in standards