The energized installation of a self-contained meter on services more than 240V should be ________.

• A. Taught
• B. Encouraged
• C. Common
• D. Avoided

Answer: (D)

When working with high-voltage services, the risk of shock and arc flash is real and significant. For voltages above 240V, installing a self-contained meter while the circuit is live exposes you to dangerous energy levels and potential injury. The safest and standard practice is to de-energize the service, isolate the circuit, and verify zero energy before performing the installation, following proper lockout/tagout procedures. That approach minimizes exposure to live conductors and reduces the chance of arcs or electrical faults during the work. The other ideas would imply that energized installation is routine or acceptable, which isn’t aligned with safety standards for high-voltage work.