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NEMA WC 72-1999 (R2004, R2015) contains a review of the problems that have occurred when polysulfide testing has been improperly imposed on tin-, silver- and nickel-coated copper and copper-alloy stranded conductors or on tin-, silver- or nickel-coated copper and copper-alloy single or stranded conductors after insulating. The Sodium Polysulfide Test is a materials inspection test, not a finished wire or cable test, and should only be imposed on a single strand/conductor prior to stranding or insulating. A new test, the white card continuity of coating test, is presented as a solution to these problems and can also be utilized on shield wires. This new test is referenced in ANSI/NEMA WC 67.
Product Details
- Published:
- 1999
- Number of Pages:
- 11
- File Size:
- 1 file , 250 KB
- Product Code(s):
- 100047, 100047, 100047
