What must be done to a split bolt connection after making it before turning on the power?

After making a split bolt connection, it's important to insulate it with tape to prevent shorting. This is essential because split bolt connections, while reliable for joining conductors, can create a risk of accidental contact, exposure to moisture, or other environmental factors that might lead to short circuits if left uninsulated.

Insulating the connection helps ensure safety by preventing conductive materials from touching the exposed parts of the connection and stabilizes the integrity of the electrical system. Proper insulation contributes to the overall reliability of the wiring and helps to mitigate the risks associated with electrical faults, which could cause equipment failure, damage, or safety hazards like electrical shocks or fires.

While other actions such as testing with a multimeter or monitoring may seem beneficial, those would typically be performed before energizing the connection. Painting the connection is not a standard practice, as it does not address safety concerns directly. In summary, insulating split bolt connections with tape is a critical step in ensuring a safe and functional electrical connection before power is restored.