Arcade machines, like all electrical devices, require proper grounding and safety features to prevent hazards such as electric shocks or short circuits. The most common types of grounding in arcade cabinets include:

1. Chassis Grounding: The metal frame of the arcade machine is connected to the earth ground to prevent accidental electrocution.

2. Signal Grounding: Ensures stable voltage references for internal circuits, reducing interference and malfunctions.

3. Earth Grounding: A direct connection to the earth via a grounding rod or building wiring for maximum safety.

Key electrical safety features in arcade machines include:

- Fuses and Circuit Breakers: Protect against overcurrent and short circuits.

- Isolation Transformers: Prevent power surges from damaging sensitive components.

- GFCI Outlets: Quickly cut power in case of a ground fault to protect users.

- Insulated Wiring: Reduces the risk of exposed live wires.

Proper grounding and safety measures are essential for compliance with electrical standards and ensuring a safe gaming experience. Regular maintenance and inspections help maintain these protections over time.