What type of power cord is specified for temporary power during installation?

• A. Permanent wiring
• B. Portable extension cord
• C. Hard-wired connection
• D. Temporary Power Cord

Answer: (D)

During installation, power for setup and testing needs to come from a cord specifically designated for temporary use. A temporary power cord is a listed, flexible cord-and-plug assembly sized for the loads involved, with proper strain relief and protection, intended to be used only while the equipment is being installed. This keeps the wiring method temporary and removable, avoiding any implication of a permanent electrical installation. Permanent wiring or a hard-wired connection would lock in a permanent system, which isn’t appropriate for the installation phase. A portable extension cord is a general-purpose cord and may not be rated or built for the specific, continuous use, wear, or enclosure conditions of escalator/moving wall installations, and it might lack the required protections. The temporary power cord is designed for this exact temporary use, providing a safe, code-compliant power source during installation and being removed once permanent power is in place.