Available for download and in hard copy, ANSI/NEMA C29.7-2015 American National Standard for Wet-Process Porcelain Insulators—High-Voltage Line-Post Type covers high-voltage, line-type insulators that are made of wet-process porcelain and used in transmission/distribution of electrical energy. This revision includes changes to sampling sizes, glaze and color requirements, units of measurement, and marking and packing requirements.