Evaluation of a Setscrew Connector for Aluminum Wire

Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts Pub Date : 2007-09-24 DOI:10.1109/HOLM.2007.4318204

J. Aronstein

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引用次数: 2

Abstract

A new setscrew connector for residential aluminum wiring repair is evaluated by means of a static zero-current test, a high-current "heat cycle" test, an environmental test, and a wire disturbance test. Additionally, the current partitioning between the two paths between the wire and the connector body is determined. After a short time in service, the resistance of the direct contact between the wire and the connector body increases to the extent that most of the current flows from the wire to the connector body through the setscrew. Further connection resistance increase then occurs at an insignificant rate, resulting in a satisfactory long life projection. The connector resists contact deterioration from the wire disturbances that occur during installation, provided that the setscrews are fully tightened as specified. The connector must be tool-held to reliably achieve the required degree of tightening, however. The connector's corrosion inhibitor is found to be involved in the initial connection resistance increase. This connector is considered to be a satisfactory candidate for residential aluminum wire repair.

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铝线固定螺钉连接器的评价

通过静态零电流测试、大电流“热循环”测试、环境测试和导线干扰测试，对一种用于住宅铝线维修的新型固定螺钉连接器进行了评估。此外，确定导线和连接器本体之间的两条路径之间的电流划分。使用时间不长，导线与接插件体直接接触的电阻增大，以致大部分电流从导线通过固定螺钉流向接插件体。进一步的连接电阻以微不足道的速率增加，从而产生令人满意的长寿命投影。如果固定螺钉按照规定完全拧紧，则连接器可以抵抗安装过程中发生的电线扰动造成的接触恶化。然而，连接器必须用工具固定，以可靠地达到所需的拧紧程度。发现连接器的缓蚀剂参与了初始连接电阻的增加。这种连接器被认为是住宅铝线修复的满意候选者。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Electrical Contacts - 2007 Proceedings of the 53rd IEEE Holm Conference on Electrical Contacts

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