How many fire extinguishers and what additional materials are needed at temporary electrical installations?

The requirement for temporary electrical installations is grounded in safety protocols that mandate the presence of fire extinguishers to manage potential fire hazards that may arise during electrical work. Having one portable fire extinguisher ensures that immediate action can be taken in case of a fire, providing an essential first line of defense.

Additionally, 240 lb of rock dust is specified because it acts as a fire suppression agent. In electrical setups, especially those involving temporary installations, materials can become prone to igniting due to electrical faults. Rock dust not only helps to extinguish fires but also prevents the spread of flames, making it a valuable asset in this context.

Therefore, the combination of one portable fire extinguisher and the designated amount of rock dust is crucial for ensuring safety during temporary electrical installations. This setup strikes a balance between portable firefighting capability and additional fire suppression materials, aligning with safety regulations that govern electrical work environments.