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1.1 This test method covers all residential pressure connection systems. Detailed examples of application to specific types of connection systems, set-screw neutral bus connectors and twist-on wire-splicing connectors, are provided in Appendix X1 and Appendix X2.
1.2 The purpose of this test method is to evaluate the performance of residential electrical pressure connection systems under conditions of cyclic temperature change (within rating) and high humidity.
1.3 The limitations of the test method are as follows:
1.3.1 This test method shall not be considered to confirm a specific lifetime in application environments.
1.3.2 The applicability of this test method is limited to pressure connection systems rated at or below 600 V d-c or a-c RMS.
1.3.3 This test method is limited to temperature and water vapor exposure in addition to electrical current as required to measure connection resistance.
1.3.4 This test method does not evaluate degradation which may occur in residential applications due to exposure of the electrical connection system to additional environmental constituents such as (but not limited to) the following examples:
126.96.36.199 Household chemicals (liquid or gaseous) such as ammonia, bleach, or other cleaning agents.
188.8.131.52 Chemicals as may occur due to normal hobby or professional activities such as photography, painting, sculpture, or similar activities.
184.108.40.206 Environments encountered during construction or remodeling such as direct exposure to rain, uncured wet concrete, welding or soldering fluxes and other agents.
1.3.5 This test method is limited to evaluation of pressure connection systems.
1.4 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 Material Safety Data Sheet for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.</p>
1.4 This standard should be used to measure and describe the properties of materials, products, or assemblies in response to electrical current flow under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual installation conditions or under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B542 Terminology Relating to Electrical Contacts and Their Use
NEC DocumentANSI/NFPA 70 National Electric Code Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Underwriter Laboratory StandardsUL486B Standard for Wire Connectors For Use With Aluminum Conductors, ANSI/UL 486B Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., Northbrook, IL 60062-2096, http://www.ul.com.
UNSPSC Code 39121421(Electrical connector assembly)
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ASTM B812-96, Standard Test Method for Resistance to Environmental Degradation of Electrical Pressure Connections Involving Aluminum and Intended for Residential Applications, ASTM International, West Conshohocken, PA, 1996, www.astm.orgBack to Top