Hazards of Electromagnetic Radiation to Ordnance

There exists a potential for ordnance containing electrically initiated devices to be adversely affected by electromagnetic radiation encountered during manufacture, storage, transportation, and deployment of such devices. This phenomenon, known in the industry as Hazards of Electromagnetic Radiation to Ordnance (HERO), is described in NAVSEA OP 3565/NAVAIR 16-1-529 Volume 2.  SMS can provide procedures and precautions to mitigate this hazard as coupling of the electromagnetic environment (EME) and the energetic device can cause unintentional or premature operation, often with significant safety and/or reliability implications.

Safety Management Services, Inc. (SMS) is experienced in assisting facilities utilizing these devices with determination of potential hazards throughout the life of a susceptible device. Maintaining a sufficient distance from RF transmitters is also an effective mitigation method as radio frequency transmitters emit electromagnetic fields that decrease in intensity with the distance from the transmitter. By determining the safe separation distance required for each device type a radiofrequency hazard map of the facility indicating safe zones and zones with potential for initiation due to the EME can be developed along with recommendations for mitigating this type of hazard.