What protective measure should be taken for circuits supplying outdoor equipment?

For circuits supplying outdoor equipment, the use of Residual Current Devices (RCDs) is crucial for electric shock protection. RCDs are designed to disconnect the electrical supply when they detect an imbalance in the electrical current, which is often a result of a fault such as a person coming into contact with a live wire. This provides a critical layer of safety, especially in outdoor settings, where the risk of electric shock is heightened due to the presence of moisture and varying weather conditions.

Outdoor equipment is typically exposed to harsher conditions than indoor equipment, increasing the likelihood of faults that could lead to electrical accidents. By incorporating RCDs, the risk associated with such scenarios is significantly minimized, as these devices act quickly to cut off the power supply in the event of a fault, providing essential protection for users.

The other options, while they may offer certain benefits, do not provide the same level of immediate protection against electric shocks as RCDs do. Circuit breakers are important for overcurrent protection but do not address the risk of electric shock. Higher-grade wiring can improve overall system durability but does not directly protect individuals. Weatherproof enclosures safeguard equipment from environmental factors but do not protect people from electric shock. Thus, utilizing RCDs is the