NFPA - 262
Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces
Organization: | NFPA |
Publication Date: | 1 January 2023 |
Status: | active |
Page Count: | 39 |
scope:
This standard shall prescribe the methodology to measure flame travel distance and optical density of smoke for insulated, jacketed, or both, electrical wires and cables and optical fiber cables that are to be installed in plenums and other spaces used to transport environmental air without being enclosed in raceways.
This test method shall not provide information on the fire performance of insulating materials contained in electrical or optical cables in fire conditions other than the ones specifically used in Section 6.6 of this standard, nor shall it measure the contribution of the cables to a developing fire condition.
Although this test uses equipment similar to that used in ASTM E84, Standard Test Method for Surface Burning Characteristics of Building Materials, or in UL 723, Test for Surface Burning Characteristics of Building Materials, sufficient changes have been made to the chamber so that a test conducted in the apparatus used for ASTM E84 or UL 723 shall not be considered identical or productive of comparable results.
Because this standard does not purport to address all of the safety problems associated with its use, it shall be the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
NOTICE: An asterisk (*) following the number or letter designating a paragraph indicates that explanatory material on the paragraph can be found in Annex A.
A reference in brackets [ ] following a section or paragraph indicates material that has been extracted from another NFPA document. Extracted text may be edited for consistency and style and may include the revision of internal paragraph references and other references as appropriate. Requests for interpretations or revisions of extracted text shall be sent to the technical committee responsible for the source document.
Information on referenced publications can be found in Chapter 2 and Annex E.
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