Electromagnetic pulse (EMP) survey of the FEMA Region X Federal Regional Center, Bothell, Washington

Technical Report · Fri Nov 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/10114260· OSTI ID:10114260

Crutcher, R I; Buchanan, M E; Jones, R W

The purpose of this report is to develop an engineering design package to protect the Federal Emergency Management Agency (FEMA) National Radio System (FNARS) facilities against the effects of high-altitude electromagnetic pulses (HEMPS). This report refers to the FEMA Federal Regional Center (FRC) in Bothell, Washington. It is highly probably that there will be a heavy dependence upon high-frequency (hf) radio communications for long-haul communications following a nuclear attack on the continental United States, should one occur. To maintain the viability of the FEMA hf radio network during such a situation, the FNARS facilities must take measures to protect against the effects of HEMP that are likely to be created in a nuclear confrontation. The equipment under stress has already been designed and built so that little opportunity exists for equipment design changes that could raise the threshold levels at which malfunctions occur. The solution must then be to reduce HEMP-induced stresses on the system by means of tailored retrofit hardening measures using commercial protection devices when available. If is the intent of this report to define the particular hardening measures that will minimize the susceptibility of the network components to HEMP effects. To the extent economically viable, protective actions have been recommended for implementation, along with necessary changes or additions, during the period of the FNARS upgrade program. This report addresses electromagnetic pulse (EMP) effects only, and disregards any condition in which radiation effects may be a factor. This report identifies the systems in the facility considered critical for emergency option. To identify the critical systems in the facility and the EMP coupling paths into these systems, an EMP survey of the facility was conducted. Results of the survey are presented along with recommendations for tailored retrofit hardening measures to be implemented to protect the facility from EMP.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: Federal Emergency Management Agency, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10114260
• Report Number(s): ORNL/FEMA--91/1; ON: DE92006662
• Country of Publication: United States
• Language: English

Related Subjects

440200
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COMMUNICATIONS
ELECTROMAGNETIC PULSES
EMERGENCY PLANS
EQUIPMENT PROTECTION DEVICES
LIGHTING SYSTEMS
NUCLEAR EXPLOSIONS
NUCLEAR EXPLOSIONS AND EXPLOSIVES
PHYSICAL RADIATION EFFECTS
POWER DISTRIBUTION SYSTEMS
RADIATION EFFECTS ON INSTRUMENT COMPONENTS
INSTRUMENTS
OR ELECTRONIC SYSTEMS
RADIO EQUIPMENT
RETROFITTING
SURVEYS
TELEPHONES
US FEMA
WASHINGTON