Dealing with temporary power connections like that is tricky and requires careful attention to code and safety. Running those massive cables directly on the ground is almost certainly a code violation and a safety hazard. Here's a breakdown of the considerations and how to handle it

Key Code Considerations (NEC - National Electrical Code - in the US):
Article 590: Temporary Installations

This is the primary article governing temporary power setups. It emphasizes safety and specifies requirements that differ from permanent installations.

Article 310: Conductors for General Wiring

This article deals with ampacity, derating factors, and allowable uses of conductors. You'll need to ensure your cable choice and installation method can handle the load safely.

Article 396: Service-Entrance Cables: Type USE

This article might be relevant if the temporary setup is serving as the temporary service entrance.

Work Space About Electrical Equipment

You must provide enough clearance for safety around the electrical panel (110.26).

Why Running on the Ground is NOT Acceptable



Physical Damage

Cables lying on the ground are susceptible to damage from vehicles, equipment, foot traffic, and the elements (water, abrasion, etc.). Damaged insulation can lead to shorts, ground faults, and fire hazards.

Tripping Hazard

A massive bundle of cables is a serious tripping hazard.

Water Damage

If cables are lying in puddles, they can create shock hazards, especially if the insulation is compromised.

Code Violations

NEC 590.4(H) specifically addresses protection from physical damage.

Acceptable Methods of Support and Protection

Given the size and weight of (6) sets of 4#600 KCM plus ground, you will want to consult a certified electrician. Options may include:1.

Elevated Support



Cable Trays

These are metal or nonmetallic troughs designed to support and route cables. You'd need heavy-duty trays suitable for the weight and quantity of cables. The trays themselves need to be securely supported on stands or posts.

Strut Channel (Unistrut)

Similar to cable trays, strut channel can be used to create a rigid support system. You'd need to use appropriate hardware (rollers, clamps, etc.) to secure the cables within the strut.

Wooden or Metal Supports

Constructing supports from wood or metal is possible, but it needs to be done in a way that's structurally sound, weatherproof, and avoids sharp edges that could damage the cables. The supports need to be high enough to prevent contact with the ground and any potential water accumulation.2.

Ramps or Protective Coverings (Limited Use)



Cable Ramps

Heavy-duty cable ramps designed for vehicle and pedestrian traffic can protect the cables in specific areas where crossing is unavoidable. However, this doesn't address the need for overall support.

Protective Sleeves/Conduit Sections

Short sections of rigid conduit (e.g., PVC or metal) can be used to protect cables in high-traffic areas, but this is only a partial solution and doesn't address the entire run.3.

Direct Burial (if allowed, but unlikely)

In very specific situations, temporary direct burial may be allowed if you follow the depth requirements for direct burial cables and meet all the grounding and bonding requirements. However, this is rarely practical for a temporary generator setup, as it requires digging and restoring the ground. The AHJ (Authority Having Jurisdiction) would likely frown on this.

Important Considerations for Large Cables



Bending Radius

600 KCM cables have a large minimum bending radius. Make sure your support system allows for gentle bends to avoid damaging the conductors.

Cable Spacing

Maintain adequate spacing between cables to allow for heat dissipation and prevent overheating. Refer to the ampacity tables in the NEC and derate accordingly.

Secure Fastening

Use appropriate cable ties, clamps, or other hardware to securely fasten the cables to the support system. This prevents sagging, movement, and potential damage.

Weight

The combined weight of (6) sets of 4#600 KCM cables is substantial. Ensure the support system is strong enough to handle the load with a safety factor.

Grounding and Bonding

Proper grounding and bonding are crucial for safety. Follow all NEC requirements for grounding the generator, the electrical panel, and any metallic support structures.

Best Practices and Recommendations



Consult a Qualified Electrician

This is not a DIY project. You must hire a licensed and experienced electrician familiar with temporary power installations and the NEC. They can assess the site, determine the best and safest solution, and ensure compliance with all applicable codes.

Permits and Inspections

Obtain all necessary permits from your local AHJ (Authority Having Jurisdiction) before starting the installation. Schedule inspections to ensure the work meets code requirements.

Documentation

Keep detailed records of the cable types, ampacity ratings, support methods, grounding and bonding details, and inspection results.*

Weather Protection

Protect all connections and equipment from the weather. Use weatherproof enclosures and fittings.

Example Scenario (Simplified)


Assessment

The electrician assesses the load requirements, distance between the generator and the panel, and site conditions.2.

Cable Selection

They choose the appropriate type and size of cable (likely USE-2 or similar) based on ampacity, voltage drop, and environmental factors.3.

Support System

They install a heavy-duty cable tray system elevated on stands.4.

Cable Routing

The cables are carefully routed through the trays, maintaining proper bending radius and spacing.5.

Fastening

The cables are securely fastened to the trays with cable ties or clamps.6.

Connections

The cables are properly terminated at the generator and the electrical panel using appropriate connectors.7.

Grounding and Bonding

The generator, panel, and tray system are properly grounded and bonded.8.

Inspection

The installation is inspected by the AHJ.

In summary, running large temporary cables requires careful planning, appropriate materials, and professional execution to ensure safety and code compliance. Don't cut corners or attempt to do this yourself if you're not qualified. Flag for review