SERVICE ENTRANCE SPECIFICATIONS FOR RESIDENTIAL AND …
SERVICE ENTRANCE SPECIFICATIONS FOR RESIDENTIAL AND COMMERCIAL 0 3000 AMPERES AT SINGLE-PHASE, 3 WIRE THREE-PHASE, 4 WIRE 120/240 VOLTS 120/240 VOLTS * 240/480 VOLTS 277/480 VOLTS Y 120/208 VOLTS 120/208 VOLTS Y *NOT AVAILABLE FROM UNDERGROUND PRIMARY SYSTEMS 10/28/2009 SULPHUR SPRINGS VALLEY ELECTRIC COOPERATIVE DESCRIPTION PAGE TABLE OF CONTENTS i LIST OF ILLUSTRATIONS iii SECTION 100.
2.0.3 Minimum depth (measured from final grade to the bottom of the trench) for a primary system shall be 52” in a non-joint trench and 58” in a joint trench. Minimum depth from final grade for secondary system shall be 36” for non-joint and joint trenches (See Figure 200.2). Trench bottom shall be smooth, level and free of rocks and debris
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