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  1. E1tech

    NFPA 70E Nomex III ratings

    We have just read through NFPA's 70E regarding personal protective equipment (PPE). Does any one know what they mean by the "APTV" rating? Also does anyone know what the APTV rating is for 6oz. Nomex III FR clothing?
  2. E1tech

    Transformer phasing

    The transformer is single phase.
  3. E1tech

    Transformer phasing

    We use a 480/240-120V transformer, which is fed from two legs of 480V three phase. Now I know that each phase is 120 degrees apart on the primary. What happens to the phase sequencing on the secondary?

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