33 70 00 Electrical Utilities
33 72 00 Utility Substations
33 72 13 Deadend Structures 33 72 23 Structural Bus Supports 33 72 23.13 Bus Support Insulators 33 72 26 Substation Bus Assemblies 33 72 26.13 Aluminum Substation Bus Assemblies 33 72 26.16 Copper Substation Bus Assemblies 33 72 33 Control House Equipment 33 72 33.13 Relays 33 72 33.16 Substation Control Panels 33 72 33.23 Power-Line Carriers 33 72 33.26 Substation Metering 33 72 33.43 Substation DC Supply 33 72 43 Substation Control Wiring 33 72 53 Shunt Reactors 33 72 63 Substation Disconnect Switches 33 72 63.13 Vertical Break Disconnect Switches 33 72 63.16 Double End Break Disconnect Switches 33 72 63.19 Double End Break "Vee" Disconnect Switches 33 72 63.21 Center Break Disconnect Switches 33 72 63.23 Center Break "Vee" Disconnect Switches 33 72 63.26 Single Side Break Disconnect Switches 33 72 63.27 Vertical Reach Disconnect Switches 33 72 63.29 Grounding for Substation Disconnect Switches 33 72 63.31 Hook Sticks