Standard Guide for Measuring Voltage Drop on Closed Arcing Contacts1
This general is issued underneath the ﬁxed designation b 497; the wide variety straight away following the designation indicates the 12 months of unique adoption or, inside the case of revision, the yr of closing revision. A variety of in parentheses indicates the 12 months of ultimate reapproval. A superscript epsilon (e) shows an article change for the reason that last revision or reapproval.
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