Wires taped together and run outside a raceway must be supported at intervals of how many feet?

The requirement for supporting wires that are taped together and run outside of a raceway is set to ensure safety and prevent damage to the insulation or conductors. Supporting wires at intervals of three feet helps maintain the integrity of the installation by reducing the strain on the conductors and minimizing the risk of sagging, which could lead to electrical hazards or mechanical damage.

In general, proper wire support is crucial for compliance with safety standards and codes. The three-foot interval strikes a balance between providing enough support to prevent excessive movement and allowing for practical installation. This interval helps ensure that the wires remain secure and reduces the likelihood of them becoming dislodged or experiencing wear and tear over time. Maintaining this support interval is particularly important in environments subject to vibration or where physical forces might act on the wiring.