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Transmission Intentional Destructive Acts

Intentional Destructive Acts
Present, Potentially Affected

Intentional destructive acts include, but are not limited to, vandalism, theft, sabotage, and terrorism at transmission lines, power stations, and substations. Each scenario stems from a variety of motivations, making it difficult to predict the likelihood and scale to which the transmission line or surrounding area might be affected by intentional destructive acts. In the event that an intentional destructive act occurs, contact local, state, and federal agencies to respond accordingly.

Intentional Destructive Acts Impacts & Mitigation

Intentional destructive acts can endanger national security, personal lives, and the power grid. Power stability can be compromised through vandalism or unauthorized site access. Unauthorized visitors may not have comprehensive power system knowledge and activate unforeseen consequences.

The following mitigation measures outline security practices to decrease the opportunities where an intentional destructive act can take place:

Physical deterrents

  • Install fences, voltage warning signs, and 24-hour cameras; conduct regular inspections, establish a confidential hotline to report suspicious activity, and offer rewards for significant criminal activity information.
  • At construction sites hire security officers to inspect on-site traffic and large loads.
  • These mitigation measures may discourage theft, vandalism, and unauthorized facility access.

Product selection

  • When available, replace solid copper wire with copper-coated steel wire, and post signs indicating the product change to decrease vandalism.

Grid backups

  • Incorporate grid redundancies to enable power to be routed around an effected area along the transmission line.
  • This increases power stability and decreases incentives to perform intentional destructive acts.

Adjacent lines

  • Avoid constructing adjacent transmission line corridors to decrease the affected area impacts from an intentional destructive act event.

Agency collaboration

  • Coordinate with nearby agencies to strengthen security intelligence.
  • Inter-agency relationships promote fast response times and resources available to conduct an investigation if an intentional destructive act occurs.