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Aluminum Wiring Information on Twist-On Connector Repairs
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CPSC Meeting Log - Twist-On Wire Connectors for Aluminum #2 Wire

This document has been typed verbatim from the CPSC document and is straight ASCII text.

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                 L O G  O F  M E E T I N G


SUBJECT: Twist-on Wire Connectors for Aluminum Wire

DATE:  June 1, 1995          PLACE:  Room 410 B/C
                                     East West Towers

DATE OF LOG ENTRY: June 15, 1995

SOURCE OF LOG ENTRY: William H. King, Jr. ESEE

CPSC PARTICIPANTS:

     William H. King, Jr. ESEE
     Andrew Stadnik, ES
     Linda Edwards, ESEE
     Aaron Banerjee, ESEE
     Ed Krawied, ESEE
     Marc Schoem, CCA (a.m. only)
     John Fitch, CCA (p.m. only)


NON-CPSC PARTICIPANTS:

     Jerry Kopstein, Underwriters Laboratories INC. (UL)
     Jake Killinger, UL
     Jim Beyreis, UL
     Peter Pollak, Aluminum Association
     Phil Sawyer, Ideal Industries, Inc.
     Bill Blaha, Ideal Industries, Inc.




SUMMARY:



     Following the recent announcement by Underwriters
Laboratories Inc. that a twist-on wire connector has been listed
by UL for use with aluminum-to-copper conductors for the first
time since 1987, CPSC staff raised safety concerns with the
application of this product to existing homes wired with aluminum
wiring. Those concerns led to the meeting covered by this log.



     Mr. King provided the explanation of the CPSC staff concerns
as documented in CPSC letter of May 1, 1995 to UL. UL, Ideal
and the CPSC staff discussed their position and views on each of
the ten issues covered in the letter.

Following the exchange of views, the parties agreed to the
following:



     1. CPSC staff will provide UL with copies of the reports
that led to the selection of the aluminum wiring repair
recommendations contained in the CPSC booklet "Repairing Aluminum
Wiring".  CPSC will also provide copies of reports related to
environmental testing of electrical connections involving
aluminum wire, and testing of twist-on connectors with aluminum
wire.



     2. UL will consider further how representative the aluminum
wire stock used in the UL testing is to conductors installed in
homes.



     3. UL will consider inclusion of environmental test
conditions in the performance requirements of their standard.



     4. UL will review the human factors issues involved in
consumer application of twist-on connectors for aluminum wire.



     5. UL will consider hot-wire ignition as a test method
applicable to flammable parts of the twist-on connector for
aluminum wire.



     6. UL will consider additional testing of the connector
using electric current flowing between conductors of similar
metals, including AL-to-AL, when these are part of the listed AL-
CU wire combinations.



     It was agreed by the parties to get back in touch with each
other, via a conference call, in approximately six weeks from the
date of this meeting to further pursue this matter.

               ######

Source Files: awtwist2.htm 6/28/95 from - from CPSC (re-typed from hard copy: DJ Friedman0 6/08/1995)

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ELECTRICAL INSPECTION, DIAGNOSIS, REPAIR
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Aluminum Wiring Notes for Home Inspectors

• The Aluminum Wiring Information Website Aluminum Wiring Hazards and Repairs: in-depth info, photos, documents. Main Page.
• The Aluminum Electrical Wiring Hazard Explained (in the document you are presently viewing)
• How to Reduce the Risk in buildings with Aluminum Electrical Wiring - Overview of Acceptable Repair Practices (in the document you are presently viewing)
• Aluminum Electrical Repair Method Details - "How to" details, how to identify, COPALUM repair, alternative repairs, history, products, research, source of special AMP TYCO COPALUM connectors & COPALUM Electricians (in the document you are presently viewing)
• COPALUM Electricians: Sources of TYCO COPALUM -Certified/Trained Aluminum Wire Repair Services (in the document you are presently viewing)
• Other Products, Ideal 65 Purple Twister (not recommended), & other Aluminum Wire Products/Articles (in the document you are presently viewing)
• The Aluminum Wiring Bibliography: extensive resources on Aluminum Wiring
• Aluminum Wire Failure Reports & Photos: Real life aluminum wiring field failure reports
• Reducing the Fire Hazards in Aluminum-Wired Homes, Jess Aronstein, Ph.D., This document answers most technical questions about the hazards and remedies of aluminum electrical wiring. Some of the sections of this very thorough document are listed below:
• Fire Hazards With Aluminum to Copper Twist-on Connectors & Acceptable Aluminum Wiring Repair Practices Color Photos, Current Issues. 9/28/95 CPSC Meeting Minutes
• "Is YOUR Aluminum Wiring Safe?" article discussing safety claims made by some people without looking at the wiring, J. Aronstein, 11/21/95
• "Repairing Aluminum Wiring," U.S. Consumer Product Safety Commission Publication CPSC#516 available online
• * Safety Hazards and Safe Inspection Procedures for Electrical and Home Inspectors at Residential Electric Panels
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• Electrical Books - Recommended books on electrical inspection, electrical wiring, electrical problem diagnosis, and electrical repair can be found in the Electrical Books section of the InspectAPedia Bookstore. (courtesy of Amazon.com)
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