What is the recommended maximum voltage for circuits used in explosive environments?

The recommended maximum voltage for circuits used in explosive environments is set at 30 volts because this voltage level is generally considered to be below the threshold that could create an ignition source for flammable gases, vapors, or dust. Maintaining a voltage at or below this limit significantly reduces the risk of sparks or electrical arcing, which could ignite explosive materials.

In environments where explosives are present, safety standards are carefully established to protect personnel and facilities. The 30-volt limit aligns with industry best practices and regulatory guidelines, which emphasize precautions in order to mitigate potential hazards associated with electrical systems in sensitive areas. Such measures help ensure that operational activities do not lead to unintended detonation of explosives due to electrical faults or other related issues.