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  1. Ric111

    Smut testing procedures and Criteria

    I am looking for details on performing a Smut Test on Black Oxided parts and the acceptance criteria to use. We use a cold process known as BlackFast.
  2. Ric111

    DC Color Codes via NFPA 79

    Having read every post on color code I can find in these forums hasn't answered my question. NFPA 79 14.2.3.2 (1) states " White with Blue stripe for Grounded (current carrying) dc circuit cunductor." Given a power supply (switching) is wired to 120VAC and the neutral is Grounded externally...
  3. Ric111

    COLOR CODE

    Having read every post on color code I can find in these forums hasn't answered my question. NFPA 79 14.2.3.2 (1) states " White with Blue stripe for Grounded (current carrying) dc circuit cunductor." Given a power supply (switching) is wired to 120VAC and the neutral is Grounded externally...

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