Moj predlog za ovaj pojam bi bio "struja nepaljenja":
"Određivanje struje nepaljenja električnih detonatora"/"Determination of no-fire current of electric detonators"
https://www.iss.rs/rs/standard/?natstandard_document_id=2529...

Pojašnjenje pojma "no fire current" na engleskom:
- Iz dokumenta "Electrostatic Sensitivity, Strength, and No-Fire Current of Short-Delay Detonators"
"No-fire current is defined as the maximum level of direct current that can be applied to a detonator without significant probability of causing an initiation."
- Iz drugog, on-line, izvora
"No-fire current is defined as the maximum current that can be applied that results in 0 of 100 matches igniting, when applied for the same amount of time."
http://www.jpyro2.com/wp-content/uploads/2012/08/Kos-257-259...

Ali, naravno, ako biste imali potrebu da u istom tekstu koristite pojmove oprečnog značenja tj. "no-fire" i "all-fire", onda biste zaista mogli upotrebiti pojmove "struja sigurnog nedelovanja" i "struja sigurnog delovanja":
"Struja sigurnog nedelovanja 0,18 A - 0,65 A/ Struja sigurnog delovanja 0,35 A 0,90 A"
https://www.krusik.rs/wp-content/uploads/2014/04/ELEKTRODET....

Mada je, naravno, uglavnom u pitanju slaba struja (manja od 0.2 A), u prevodima se izgleda insistira na posledici koju takva struja "može" tj. "ne može" da izazove:
"No-fire Current ≤ 0.2 A for 50 ms"
https://www.aelworld.com/application/files/8115/4442/8860/ae...