You are correct, there are several code violations happening in the scenario you described. Let's break them down

1. Impermissible Use of Flexible Cord:
410.62(C)(1)

This section of the NEC clearly states that cord connection is permitted (not required) only when the luminaire is located

directly below the outlet or busway. Your situation involves a significant horizontal run (20-30 ft) and the luminaire is hardwired, which directly contradicts this allowance. General Rule

Flexible cords are generally for connection of

portable equipment that needs to move. Permanently installed luminaires are generally intended to be hardwired with wiring methods like conduit, cable (NM, MC), etc.2. Hardwiring of Flexible Cord

This is also a violation. Flexible cord is designed for plug-in connections. While the NEC doesn't explicitly forbid hardwiring flexible cord in every situation, it is

not permitted for permanent wiring of luminaires (except as in 410.62(C)(1)). The concern is that the insulation of the flexible cord is typically not rated for the same conditions as wiring methods like THHN in conduit or NM cable. It's not designed for long-term, permanent, and potentially concealed installations.3. Support of Flexible Cord

While you're right that you can't find strapping requirements because long runs of flexible cord aren't allowed for this application, even if it were permitted,

TY-wraps are generally not a suitable method of support for electrical wiring. Strapping or supporting must not damage the cable or conductors. Ty-wraps can easily over-tighten and damage the jacket of the flexible cord.

Summary of Violations



Misuse of Flexible Cord

Running 20-30 ft of flexible cord for a permanently mounted luminaire is not permitted by 410.62(C)(1).

Improper Wiring Method

The luminaire should be wired using an approved wiring method for permanent installations (e.g., conduit, cable).

Unapproved Support

Ty-wraps are not an approved method for supporting electrical cables.

Corrective Action


Remove the Flexible Cord

This is the primary issue.2.

Install a Proper Wiring Method

Run conduit or an appropriate cable (NM, MC, etc.) to the luminaire from the junction box. This may require extending the junction box's location or installing a new junction box closer to the luminaire.3.

Secure with Approved Supports

Properly secure the conduit or cable with listed supports at appropriate intervals, as per the NEC.

Why These Rules Matter

These rules are in place for safety and to ensure a reliable electrical installation. Using flexible cord in this manner increases the risk of:

Fire

Flexible cord is more susceptible to damage and overheating than other wiring methods when used in permanent installations.

Electrical Shock

Improper connections and damaged insulation can create shock hazards.

Premature Failure: Flexible cord is not designed for the stresses of a permanent installation, leading to premature failure and the need for repairs.Report the violations to the contractor and demand they be corrected to meet the requirements of the NEC and any local codes. Document everything with photos and written communication. If they resist, you may need to involve the local electrical inspector. Flag for review