Low-fat dairy foods linked to Parkinson's risk, study suggests New research links three servings of low-fat dairy a day with a slight increase in Parkinson's disease, but more research is needed to better understand the findings. iStockphoto. Though you might think eating low-fat dairy foods is a healthy move, new research suggests the habit is tied to a slight rise in the risk of .
National Standards. Communications wiring standards are defined by a number of national and international agencies, including the Electrical Industries Association (EIA), the Telecommunications Industry Association (TIA), the Institute of Electrical and Electronics Engineers (IEEE) and the National Electrical Manufacturer's Association (NEMA).
THHN Dual Rating. 1  All of our THHN electrical wire is dual rated with THWN wire because they're manufactured very similar with almost no cost difference. 2  It's the most standard type of electrical wire on the market because it's used as a single condutor electrical wire and also used in most electrical cables as well.HHN Dual Rating. 1  All of our THHN electrical wire is dual rated with THWN wire because they're manufactured very similar with almost no cost difference. 2  It's the most standard type of electrical wire on the market because it's used as a single condutor electrical wire and also used in most electrical cables as well.