Operating Precautions for High-Energy Laser EOD Equipment-ShangHai RunQia Electronics Technology Co.,Ltd.

Operating Precautions for High-Energy Laser EOD Equipment

During the disposal of unexploded ordnance by high-energy laser, the operation involves dual hazards of high-power laser (1000W–3000W) and high-risk explosives. Safe operation is the lifeline of the entire mission.

The following are safety operating precautions for portable laser EOD equipment:

I. Personnel Protection: Invisible Hazards

The 1064nm fiber laser belongs to the near-infrared band. It is invisible to the human eye yet extremely damaging to the retina.

Wear dedicated protective goggles: All on-site personnel must wear laser protective goggles specially rated for the 1064nm wavelength with a protection level of OD6+ or higher. Staring directly at the laser emission port or target reflected light is strictly prohibited.

Skin protection: Scattered light from high-power laser may also cause skin burns. Operators shall wear long-sleeve flame-retardant clothing as far as possible to avoid skin exposure.

Set up warning zones: According to the equipment range (e.g., 300 meters), establish a fan-shaped warning zone with a radius of no less than 100 meters along the laser axis and both sides. Unauthorized personnel are strictly prohibited from entering.

II. Equipment Inspection: Ensure Controlled Energy

Lithium Battery Condition Monitoring

Disposal operations are strictly prohibited when the battery level is lower than 20%, to avoid ablation interruption caused by power fluctuation.

Lithium batteries with signs of swelling, deformation or shell damage are forbidden for use.

Optical Window Maintenance

Inspect the protective lens of the laser emitter before operation to ensure it is free of dust, fingerprints and damage.

Forced laser emission with contaminated protective lens is strictly prohibited; otherwise, the high-energy laser will burn out the optical module instantly.

Pan-Tilt and Ranging Calibration

Test the smooth movement of the pan-tilt before every mission, and ensure the center of the laser beam coincides with the image center of the high-definition camera.

Verify the target distance with the laser rangefinder to ensure the target is within the effective focal length range of the equipment.

III. Operating Environment: Guard Against Collateral Risks

Background Object Safety

Laser features strong penetrating power. It must be confirmed that there are no flammable and explosive materials, high-voltage lines or critical infrastructure behind the target ordnance.

Missed Shot Contingency Plan

Operators must take into account that once the ordnance shell is burned through, the laser may penetrate the body and shoot into the distance.

Forest Fire Prevention

When operating in grasslands or forest areas, the high temperature of the laser may ignite surrounding dry grass. A certain fire isolation belt shall be cleared around the target, and fire extinguishing equipment shall be prepared on site.

Meteorological Restrictions

Heavy rainfall, dense fog or strong wind and dust will seriously refract and absorb laser energy and degrade focusing performance. Operations shall be conducted with caution under such weather conditions, or the irradiation duration shall be extended accordingly.

IV. Disposal Process: Rigid Logical Control

Phased power output: It is recommended to aim first at low power (or with aiming indicator light). After confirming the accurate spot position, switch on the high-power disposal mode.

Angle Selection

Avoid vertical laser irradiation on ordnance shells with strong specular reflection (such as new brass or polished steel), to prevent reflected light from returning and damaging the laser device.

Maintain an offset angle of 5°–10°, or select rusted and dark areas as the laser entry point.

Emergency Interruption Mechanism

Operators shall keep their hands near the emergency cut-off switch at all times.

Immediately shut down the laser if the ordnance rolls violently, deviates from the aiming center, or unauthorized personnel suddenly enter the operation area.

V. Post-Disposal: Confirmation and Cooling

Hangfire Handling

If the ordnance fails to ignite after laser irradiation exceeding the preset time (e.g., 5 minutes), do not approach immediately. Shut down the laser and remain on-site for observation for at least 30 minutes to prevent delayed detonation.

Physical Cooling

After successful disposal (the ordnance has completed energy-releasing combustion), the debris remains at an extremely high temperature. Use an infrared thermometer for temperature monitoring, and conduct site cleanup only after the temperature drops to ambient level.

System Lockout

Upon completion of the operation, immediately remove the laser activation key and set the equipment to locked state to prevent accidental triggering of laser emission.

Safety Warning

Laser EOD equipment is categorized as high-energy weaponry. Operators must receive professional technical training. Any violation of operating procedures may result in severe equipment damage or personal injury and death.

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