 美国的核武器具有使意外、错误或不可抗力导致的核爆炸可能性最小化的安全设计特征。实例包括将爆炸的必要部件与一切形式的重要电能，如闪电或电涌隔离，以及采用防火弹芯。
 U.S. nuclear weapons incorporate safety design features that minimize the possibility of nuclear detonation due to accidents, errors, or acts of nature. Examples include the isolation of components essential to detonation from all forms of significant electrical energy, such as lightning or power surges, and fire-resistant pits.