Agency refers to the Rural Utilities Service (RUS), an agency of the United States Department of Agriculture's (USDA), hereinafter referred to as the Agency.
EPR Insulating Compound is a mixture of ethylene propylene base resin and selected ingredients.
TR-XLPE Insulating Compound is a tree retardant crosslinked polyethylene (TR-XLPE) insulation compound containing an additive, a polymer modification filler, which helps to retard the growth of electrical trees in the compound.
Cable rated voltage | Nominal thickness | Minimum thickness | Maximum thickness |
15 kV | 220 mils (5.59 mm) | 210 mils (5.33 mm) | 250 mils (6.35 mm). |
25 kV | 260 mils (6.60 mm) | 245 mils (6.22 mm) | 290 mils (7.37 mm). |
35 kV | 345 mils (8.76 mm) | 330 mils (8.38 mm) | 375 mils (9.53 mm). |
7 C.F.R. §1728.204