ASTM E1725-95(2001)
(Test Method)Standard Test Methods for Fire Tests of Fire-Resistive Barrier Systems for Electrical System Components
Standard Test Methods for Fire Tests of Fire-Resistive Barrier Systems for Electrical System Components
SCOPE
1.1 These test methods cover fire-test-response.
1.2 These fire-test-response test methods provide information on the temperatures recorded on the electrical system component within a fire-resistive barrier system during the period of exposure.
1.3 This standard should be used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions and should not be used to describe or appraise the fire hazard or fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard or fire risk assessment of a particular end use.
1.4 Potentially important factors and fire characteristics not addressed by these test methods include, but are not limited to:
1.4.1 The performance of the fire-resistive barrier system constructed with components other than those tested.
1.4.2 An evaluation of the functionality of the electrical system within the fire-resistive barrier system.
1.4.3 An evaluation of the ampacity of the electrical system within the fire-resistive barrier system.
1.4.4 An evaluation of the smoke, toxic gases, corrosivity, or other products of heating.
1.4.5 A measurement of the flame spread characteristics over the surface of the fire-resistive barrier system.
1.4.6 An evaluation of through-penetration sealing methods.
1.4.7 Combustibility of materials in the fire-resistive barrier system or of the electrical system components.
1.4.8 The need for supports beyond those normally required.
1.4.9 Environmental conditions in the area of service.
1.5 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation: E 1725 – 95 (Reapproved 2001)
Standard Test Methods for
Fire Tests of Fire-Resistive Barrier Systems for Electrical
1
System Components
This standard is issued under the fixed designation E 1725; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
1.1 These test methods cover fire-test-response.
1.2 These fire-test-response test methods provide informa-
2. Referenced Documents
tion on the temperatures recorded on the electrical system
2.1 ASTM Standards:
component within a fire-resistive barrier system during the
E 119 Test Methods for Fire Tests of Building Construction
period of exposure.
2
and Materials
1.3 This standard should be used to measure and describe
2
E 176 Terminology of Fire Standards
the response of materials, products, or assemblies to heat and
E 1529 Test Methods for Determining Effects of Large
flame under controlled conditions and should not be used to
Hydrocarbon Pool Fires on Structural Members and As-
describe or appraise the fire hazard or fire risk assessment
2
semblies
which takes into account all of the factors which are pertinent
to an assessment of the fire hazard or fire risk assessment of a
3. Terminology
particular end use.
3.1 Definitions:
1.4 Potentially important factors and fire characteristics not
3.1.1 air drop—lengths of open run conductors or cables
addressed by these test methods include, but are not limited to:
supported only at each end.
1.4.1 The performance of the fire-resistive barrier system
3.1.2 electrical system components—cable trays, conduits
constructed with components other than those tested.
and other raceways, open run cables and conductors, cables,
1.4.2 An evaluation of the functionality of the electrical
conductors, cabinets, and other components, as defined or used
system within the fire-resistive barrier system.
in the National Electrical Code, and air drops as defined in
1.4.3 An evaluation of the ampacity of the electrical system
3.1.1.
within the fire-resistive barrier system.
3.1.3 fire-resistive barrier system—a specific construction
1.4.4 An evaluation of the smoke, toxic gases, corrosivity,
of devices, materials, or coatings installed around, or applied
or other products of heating.
to, the electrical system components.
1.4.5 A measurement of the flame spread characteristics
3.1.4 specimen—a construction consisting of electrical sys-
over the surface of the fire-resistive barrier system.
tem components and a fire-resistive barrier system.
1.4.6 An evaluation of through-penetration sealing methods.
3.1.5 test assembly—horizontal or vertical construction on
1.4.7 Combustibility of materials in the fire-resistive barrier
which test specimens are to be mounted together with associ-
system or of the electrical system components.
ated instrumentation.
1.4.8 The need for supports beyond those normally re-
quired.
4. Significance and Use
1.4.9 Environmental conditions in the area of service.
4.1 These fire-test-response test methods evaluate, under the
1.5 The values stated in inch-pound units are to be regarded
specified test conditions, the ability of a fire-resistive barrier
as the standard. The SI units given in parentheses are for
system to inhibit thermal transmission to the electrical system
information only.
component within.
1.6 This standard does not purport to address all of the
4.2 In these procedures, the specimens are subjected to one
safety concerns, if any, associated with its use. It is the
or more specific sets of laboratory test conditions. If different
responsibility of the user of this standard to establish appro-
test conditions are substituted or the end-use conditions are
changed, it may not be possible by or from these test methods
1
These test methods are under the jurisdiction of ASTM Committee E05 on Fire
Standards and are the direct responsibility of Subcommittee E05.11 on Construction
Assemblies.
2
Current edition approved Aug. 15, 1995. Published October 1995. Annual Book of ASTM Standards, Vol 04.07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E 1725
to predict changes in the fire test response characteristics (125 mm) of the sheathed junction end of the thermocouple
measured. Therefore, the results are valid only for the fire test shall be mounted parallel to the surface of the test specimen.
exposure conditions described in these procedures.
5.4 Fur
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