Experiment Hazard Class 13.0 - High Voltage


This hazard classification applies to all experiments involving the use of High Voltage Equipment. Other hazard classifications and their associated hazard controls may also apply to experiments in this hazard class. The inspection of electric equipment is covered under the APS Policy For User Electric Equipment Inspections. NOTE: Unless required Argonne training has been completed, users are not authorized to perform electrical work.

Experiment Category

All Hazard Class 13 experiments are categorized as medium risk experiments.

Experiment Hazard Control Verification Statements

Engineered ControlsDetermined by review and results of a DEEI inspection of the equipment.

Procedural ControlsDetermined by review and results of a DEEI inspection of the equipment.

Design Reviews and Equipment InspectionsMandatory inspection by APS Designated Electrical Equipment Inspectors. Please read the details of the inspections. APS Electrical Safety Committee is available for consultation.


ESH 114 Lockout-Tagout
ESH 371 General Electrical Safety
ESH 375 NFPA 70 E

Following the guidance provided in the APS User Safety Updates (February 16, 2005) and APS User Safety Update (April 12, 2006)

Signs and Labeling – Determined by review.

Personal Protective EquipmentDetermined by NFPA 70 E criteria and evaluation of scope of work.

Experiment Authorization

Unless otherwise noted in the approved experiment safety plan, the Director of the APS Engineering Support Division delegates the authority to authorize an experiment in this hazard class to a member of the AES Experiment Safety Review Board and resident beamline personnel appearing in the Director of the AES' list of personnel having the authority to authorize experiments.

Hazard Control Verification

The Director of the APS Engineering Support Division delegates responsibility for verifying that required controls are in place to the experiment On-site Spokesperson, Beamline Management personnel having experiment safety responsibilities, and ANL certified Electrical Equipment Inspectors.

ANL ES& H Manual Chapter 9 Electrical Safety Program and applicable LMS PROCs
NFPA 70 E Standard for Electrical Safety in the Workplace 2004 edition

ESH 9.2- Electrical Safety Program
ESH 9.1-Electrical Safety Program-General Electrical Safety
ESH 9.3- Electrical Safety Program- Electrical Systems and Equipment
LMS-PROC-17 National Electrical Code Determination

Reviewed September 19, 2013