What should be avoided if possible on construction sites?

Using 230v equipment without protection should indeed be avoided on construction sites due to the significant electrical hazards it poses. This type of equipment carries a high risk of electrical shock, which can lead to serious injuries or fatalities. Appropriate protective measures, such as using residual current devices (RCDs) and ensuring that equipment is properly maintained and inspected, are essential to prevent accidents.

The correct answer highlights the importance of safety protocols regarding electrical equipment in construction, where various environmental factors can increase the risk of accidents. Proper training and adherence to safety standards are crucial for safeguarding workers' health and ensuring a safe working environment.