Is it permissible to have splices or taps in flexible cords?

Flexible cords are designed for specific uses, primarily to connect portable appliances and equipment to the power supply in a safe manner. The National Electrical Code (NEC) specifies that splices or taps in flexible cords are not permitted because these cords are not intended to be permanent wiring. Allowing splices could lead to issues such as overheating, increased resistance, and potentially unsafe conditions due to movement or wear on the connections over time.

In essence, the construction and intended use of flexible cords do not support the integrity needed for safe splicing or tapping. This regulation helps maintain safety standards and ensures that flexible cords are used appropriately, thereby preventing hazards associated with improper connections.