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SLAC National Accelerator Laboratory

Safety: Accessing SSRL Accelerator Facilities

SSRL Accelerator housings contain equipment having exposed electrical conductors that operate at > 50 volts AC or DC, or at lesser voltages, but higher currents, creating potentially hazardous situations and requiring mitigation in accordance with the Electrical Safety (Chapter 8) of the SLAC ES&H Manual and the SLAC Lock and Tag Program for the Control of Hazardous Energy (SLAC-I-730-0A10Z-001)


The documents below provide:


  • Procedures for working in SSRL Accelerator housings, including how and when Lock and Tag shall be applied.
  • Instructions for routine entry into SSRL Accelerator housings
  • Orientation to Electrical Hazards in SSRL Accelerator Housings (pre-requisite for unescorted access)

Contact Matt Padilla X3861 if you have any questions.


Procedure for work in SSRL Linac Vault and Diagnostic Room following Operator Lock-Out of exposed electrical hazards



Procedure for work in SSRL Booster/BTS Tunnel following Operator Lock-Out of exposed electrical hazards.



Procedure for work in SSRL SPEAR Tunnel following Operator Lock-Out of exposed electrical hazards.



Tunnel Hazard Orientation Attendees by Last Name as of 12/17/04 (SSRL only access)


Orientation to Electrical Hazards in SSRL Accelerator Tunnels as of 12/17/04


Accelerator Tunnel Access



2575 Sand Hill Road, MS: 99, Menlo Park, California, 94025, USA Tel: 650-926-4000 | Fax: 650-926-4100