IEC 60695-2-11-2000 pdf free download – Fire hazard testing – Part 2-11: Glowing/hot-wire based testmethods – Glow-wire flammability test method for end-products
This part of lEC 60695 specifies the details of the glow-wire test to be applied to end-productsfor fire hazard testing.
For the purpose of this standard,end-product means electrotechnical equipment,itssubassemblios, and components.
One of the responsibilities of a technical committee is, wherever applicable, to make use ofbasic safety publications in the preparation of its publications.
Normative roferences
The following normative documents contain provisions which，through reference in this text,constitute provisions of this part of lEC 60695.For dated references,subsequent amendmentsto,or revisions of，any of these publications do not apply. However,parties to agreementsbased on this part of iEC 6o695 are encouraged to investigate the possibility of applying themost recent editions of the normative documents indicated below.For undated references, thelatest edition of the normative document referred to applies. Members of lEC and ISo maintainregisters of currently valid International Standards.
IEC 60695-2-2:1991, Fire hazard testing -Part 2: Test methods- Section 2: Needle-flame test
lEC 60695-2-10:2000，Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods -Glow-wire apparatus and common test procedure
ISOnEC 13943:2000,Fire safety – Vocabulary
3Definitions
For the purpose of this part of lEC 60695, the definitions given in lSOIEC 13943,as well asthe following definition,apply.
Description of test considerations and test specimen selectlon
lf possible,the test specimen should be a complete end-product.The test specimen shall bechosen so that the conditions of the test will not be significantly different from those occurringin normal use with regard to shape，ventilation, effect of thermal stresses and，possibly，offlames occurring in,or of burning or glowing particles falling in the vicinity of，the tostspecimen.
lf the test cannot be made on a complete end-product,or unless otherwise specified by therelevant specification, it is acceptable to
a) cut a piece containing the part under examination from it, or
b) cut an aperture in the complete end-product to allow the glow-wire access,
c)remove the part under examination in its entirety and test it separately.
Technical committees should define in their relevant specifications what may be removed toachieve access. A small aperture may affect the results by leading to the ignition of thesurroundings,by reducing the temperature of the glow-wire or by restricting the availability ofoxygen，whereas too large an aperture may permit more oxygen than would normally beavailable.
lf，during the test,any part of the equipment containing the test specimen is ignited byextraneous heat from the glow-wire and so influences the thermal conditions at the testspecimen, the test shall be invalid.
The test is carried out to ensure that,under defined conditions, the glow-wire does not causeignition of parts,and that a part, if ignited, has a limited duration of burning without spreadingfire by flames or by burning or glowing particles falling from the test specimen.
lf the test specimen emits flames during the application of the glow-wire，the fire hazardcreated may necessitate further tests using other ignition sources such as the needle-flameapplied to those parts which are reached by the emitted flames.
The glow-wire test shall not be used for small parts for which reference may need to be madeto other test methods, for example, the needle-flame test in lEC 60695-2-2.IEC-60695-2-11 pdf download.