Main Point Analysis of Special Contactor Standard ARI780/790―1997

To let production enterprises who are in the business of air conditioning and refrigerator and fittings supply at home understand special contactor standard ARI 780/790―1997,introduction was made to the standard's main points.combined with actual operation working conditions and using experience of special contactor,this paper compared the differences between this standard and related contents of GB 14048.4―2010 and GB 17885―2009.Practice shows that as far as special contactors are concerned,standard ARI 780/790―1997 is with very good adaptability.