Shorting clips/shunts should remain in place until which condition is met?

• A. The EID is ready to be installed
• B. Until the EID is ready to be installed
• C. The inspection is completed
• D. A full shift has elapsed

Answer: (B)

Shorting clips/shunts are used to keep an electronic initiating device from firing while it is being prepared or handled. They hold the device in a safe, de-energized state by grounding or shorting its input so no accidental signal can initiate it. They should stay in place until you are ready to install the EID in the firing circuit. At that moment, you remove the shorts as part of the installation and verification process. Waiting for an inspection to be completed or for a full shift to pass does not address the immediate safety condition needed for installation, whereas keeping the shorts in place until installation readiness ensures the device cannot accidentally activate during handling.