This standard applies to materials, constructions, and testing of 2001 through 5000 volt nonshielded power cables having insulations of thermoplastic polyethylene, cross-linked polyethylene or crosslinked rubber, of the types shown in Part 4. The insulation shall be either covered with a discharge resistant jacket or shall be a discharge-resistant material without a jacket. Discharge resistant insulations and jackets shall comply with the applicable surface resistivity, U-bend discharge, and track-resistance requirements of Parts 4 and 5. The nonshielded cables described in this standard are intended for use for the transmission and distribution of electrical energy in normal conditions of service in indoor, outdoor, aerial, underground, or submarine installations within the application limits shown in Table 4-4 and in 5.2.1. They are not intended for portable use applications.