Underground Distribution Substation : These are also located near to the end-users. Distribution substation transformers change the subtransmission voltage to lower levels for use by end-users
US Department of Labor, Electric Power eTool: Glossary of Terms, Occupational Safety & Health Administration OSHA, Washington, D.C., USA 2010. https://www.osha.gov/SLTC/etools/electric_power/gl ossary.html, (OSHA/ Electr Pwr - Amer) {618}