Protecting and arming base fuses in armor-piercing shells

How are base fuses in armor-piercing shells protected from propellant pressure and accidental initiation?

Depending on the design, position or a protective cap shields the fuse, while mechanical safeties keep the firing mechanism isolated until after firing.

Base fuses can sit away from direct exposure or be protected by a cap. Protection against firing pressure is distinct from the mechanisms that prevent premature initiation. Setback blocks and soft-metal deformers keep the firing mechanism isolated until the shell has been fired and armed. Delay arrangements are another possibility. Centrifugal locks are mentioned cautiously because the notes being consulted contain question marks about them. The passage supplies several examples, with an explicit recommendation to consult the more detailed NavWeaps explanation.