ANSI/NEMA HP 8-2013
Electrical and Electronic Cross-Linked, Modified Low-Smoke Polyolefin (XLPO) Insulated Hook-Up Wire, Types LS (rated 105 degrees C-600 V), ZHDM (rated 90 degrees C-600 V), ZHDH (rated 90 degrees C-600 V), ZH (rated 125 degrees C-600 V), and ZHX (rated 125 degrees C-1000 V)
standard by American National Standards Institute / National Electrical Manufacturers Association, 01/23/2013