What precautions should be taken when working on fire extinguisher discharge cartridges (squibs)?

• A. Squibs do not require precautions.
• B. Always follow the maintenance manual procedures when disconnecting or connecting a squib.
• C. It's safe to disconnect without following any procedure as long as power is off.
• D. They can be handled with any procedure.

Answer: (B)

When working on fire extinguisher discharge cartridges, the key point is safety through following the maintenance manual procedures for connecting or disconnecting the squib. These devices contain a pyrotechnic initiator and can fire if mishandled, so you must isolate all energy sources, follow the exact sequence, and use the prescribed tools and protective equipment. The manual’s steps help prevent accidental discharge from electrical, static, or mechanical disturbances and ensure proper wiring, connections, and handling so the system remains reliable and safe.

That’s why simply ignoring precautions, or just turning off power without following the documented procedure, is not acceptable. The only safe approach is to adhere to the specified procedure every time a squib is accessed.