Respuesta :
When working on de-energized circuitry, a grounded system is typically used.
Option 4) Grounded system is the correct answer.
A grounded system involves connecting electrical equipment or circuits to the Earth or a conductive ground, providing a path for electrical faults or excess electrical energy to safely dissipate into the ground. This grounding helps to protect workers from electric shocks and provides a reference point for electrical potential.
When working on de-energized circuitry, a grounded system is important to ensure safety. By grounding the circuit or equipment, any residual electrical energy or potential is effectively discharged, reducing the risk of accidental electrical shocks. Grounding also helps to prevent the buildup of static electricity and provides a safe path for fault currents to flow, which can help protect workers and prevent damage to the electrical system.
AC (alternating current) or DC (direct current) systems may be encountered in de-energized circuitry, but the key safety measure is the use of a grounded system, regardless of the type of current being dealt with.
Option 1) AC system and Option 2) DC system are incorrect because they refer to the type of electrical current, which may be present in the circuitry but is not the primary consideration when working on de-energized systems.
Option 3) Isolated system is also incorrect because an isolated system refers to a setup where there is no electrical connection to the surrounding environment, which is not typically the case when working on de-energized circuitry.
