Transcription of A GUIDE TO LOW RESISTANCE TESTING - Electronic Test …
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A GUIDE TO LOW RESISTANCE TESTING - Electronic Test …
A GUIDE TO LOWRESISTANCE TESTINGU nderstanding and Measuring Low Resistanceto Ensure Electrical System 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at GUIDE TO LOW RESISTANCE TESTING1 TABLE OF CONTENTSI ntroduction ..2 Why Measure Low RESISTANCE ? ..3 What is a Low RESISTANCE Measurement? ..3 What Does the Low RESISTANCE Measurement Tell the Operator? ..3 What Problems Create the Need toPerform the Test? ..4 Industries with Significant RESISTANCE Problems ..4 Specific Examples of Apparatus in Need of LowResistance TESTING ..4 Motor Armature ..5 Automotive Assembly ..5 Power Generation and Distribution (high current joints, connections and bus bars) ..5 Transformer TESTING ..5 Uninterruptible Power Supply - Battery Straps ..5 Cement Plants and other Raw Material Processing Applications ..6 Circuit Breakers.
4A GUIDE TO LOW RESISTANCE TESTING A GUIDE TO LOW RESISTANCE TESTING 5 are exposed to acid vapors, causing further degradation. These conditions result in a decrease in the surface-to-surface contact area with an associated increase in surface-to-surface contact resistance, ultimately causing excessive heating at the junction.
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