Project Details

SLAC Transmission Line Tower
Cupertino Electric utility transmission line project in Palo Alto, California
Palo Alto, CA
Project Size: 
230 kV
Project Attributes: 
Project Summary: 

The Stanford Linear Accelerator Center (SLAC) Transmission Line Tower project involved the design and replacement of two 230 kV circuit switchers with two new disconnect switches with SF6 load interrupters as part of a City of Palo Alto distribution circuit upgrade project. The six-week utility project used a new 3M aluminum cable product with a polymer reinforced core that dissipates heat better to increase load carrying capbilities.

Cupertino Electric's scope of work included project engineering, demolition, equipment purchase, installation, testing and commissioning services. Specifically, CEI was responsible for: 

  • Furnishing and installing new new tubular steel poles
  • Constrcting concrete foundations for poles
  • Installing new wooden poles
  • Installing conductor wire and hardware for the circuit
  • Making all permanent connections to the existing substation
  • Grading a decomposed granite pathway
  • Relocating existing light fixtures adjacent to the substation

Cupertino Electric also provided temporary power to the jobsite and closely coordinated with utilty company Pacific Gas & Electric,on all work related to this project, including local power outages. In addition, the densely wooded location of the project in Northern California meant that the project management team had to take extra precautions to maximize safety and security while performing this project using skilled IBEW linemen.




The project was completed without accidents or lost time and represents the first of many modernization projects that would be undertaken by the city of Palo Alto.

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