ASTM B1004-16
(Practice)Standard Practice for Contact Performance Classification of Electrical Connection Systems
Standard Practice for Contact Performance Classification of Electrical Connection Systems
SIGNIFICANCE AND USE
5.1 This practice is based on the use of electrical resistance as an indicator of contact performance. This is the fundamental physical attribute that reflects the condition of the electrical contact interface(s) within a connection. For practical current-carrying electrical connections, resistance may be calculated from potential drop measurements, as described, for example, in Test Method B539 and B812.
5.2 This practice accommodates the use of multiple test methods, as may be required to predict performance in a given application.
5.3 This practice applies only to the performance of the current-carrying contact interface(s). It does not characterize the performance of insulating materials or other components of a complete connection system.
5.4 Specifiers may use the performance classification as a requirement for a given application.
5.5 Manufacturers may use the performance classification to reflect the relative quality of their products.
SCOPE
1.1 This practice provides a method of specifying performance requirements for (or reporting test results of) electrical contact and connection systems. Both conductor and connector system performance may be specified by this practice, separately or in combination.
1.2 This practice may be used for separable or permanent contacts employing metallic conducting components.
1.3 This practice is applicable to both signal and power applications.
1.4 This practice is intended to be used for specifying performance of connectors and connection systems that are marketed for general public and trade application, as for instance for use in building wiring, electronics, and vehicles.
1.5 This practice is not intended to be used to specifying the performance of connection systems for specialized applications, such as military, industrial, aircraft, power distribution, and medical apparatus.
1.6 This practice does not specify the sample preparation or test sequences required for determining contact performance. It is the responsibility of the user of this practice to determine the applied test sequence(s) appropriate for the application.
1.7 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provide by the manufacturer, to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Standards Content (Sample)
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Designation:B1004 −16
Standard Practice for
Contact Performance Classification of Electrical Connection
1
Systems
This standard is issued under the fixed designation B1004; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
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1.1 This practice provides a method of specifying perfor- 2.1 ASTM Standards:
mance requirements for (or reporting test results of) electrical B539 Test Methods for Measuring Resistance of Electrical
contact and connection systems. Both conductor and connector Connections (Static Contacts)
system performance may be specified by this practice, sepa- B542 Terminology Relating to Electrical Contacts and Their
rately or in combination. Use
B812 Test Method for Resistance to Environmental Degra-
1.2 This practice may be used for separable or permanent
dation of Electrical Pressure Connections Involving Alu-
contacts employing metallic conducting components.
minum and Intended for Residential Applications
1.3 This practice is applicable to both signal and power
applications.
3. Terminology
1.4 This practice is intended to be used for specifying 3.1 Terms used in this practice are defined in Terminology
performance of connectors and connection systems that are
B542 except as noted in 3.2.
marketed for general public and trade application, as for
3.2 Definitions of Terms Specific to This Standard:
instance for use in building wiring, electronics, and vehicles.
3.2.1 conductor, n—electrically conductive member carry-
1.5 This practice is not intended to be used to specifying the ing current to a contact interface. Examples are wire and cable,
performance of connection systems for specialized
busbar, and conductive paths on an etched printed circuit
applications, such as military, industrial, aircraft, power board.
distribution, and medical apparatus.
3.2.2 connection performance, n—the condition and behav-
1.6 This practice does not specify the sample preparation or ior of the contact interface(s) within the connection as indi-
cated by electrical resistance and resistance change with time
test sequences required for determining contact performance. It
is the responsibility of the user of this practice to determine the under the applied conditions.
applied test sequence(s) appropriate for the application.
3.2.3 connection system, n—thecompletedelectricalcontact
1.7 This standard does not purport to address all of the interface and all associated parts, assembled as prescribed by
the manufacturer(s) for the intended service.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar
3.2.4 intended conditions of use, n—any combination of
with all hazards including those identified in the appropriate
applied electrical, environmental, and other conditions associ-
Safety Data Sheet (SDS) for this product/material as provide by
ated with the intended and rated application.
the manufacturer, to establish appropriate safety and health
3.2.5 nonincreasing, adj—as applied to connection resis-
practices and determine the applicability of regulatory limita-
tance values, mathematically, a series of numbers that are
tions prior to use.
bounded above.
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This practice is under the jurisdiction ofASTM Committee B02 on Nonferrous
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Metals and Alloys and is the direct responsibility of Subcommittee B02.11 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Electrical Contact Test Methods. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Oct. 1, 2016. Published October 2016. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
B1004-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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B1004−16
4. Performance Classification Practice 4.1.3 Class C—A connection system for which no predic-
tion of performance is made for the intended conditions of use.
4.1 The performance specification (or reporting) statement
4.1.3.1 Example of use: “Class C, for boat trailer lighting.”
consists of an alphabetic classification, a brief statement of the
4.2 A given connection system may have different perfor-
intended conditions of use, and, for Class B only, the expected
mance classifications for different applications.
minimum years of life in the intended application. ClassAand
Class B statements shall include reference to a published
5. Significance and Use
standard or method by which
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