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IronRidge•BX Chassis

Analysis by Marcus & Team

IronRidge BX Chassis Ballasted System Installation

IronRidge BX Chassis installation guide for commercial solar. Ballasted system checks, safety tips, NEC compliance.

Frequently Asked Questions

•What are the specific torque requirements for the grounding lugs on the IronRidge BX Chassis?

Consult the IronRidge BX Chassis installation manual for the specific torque requirements for the grounding lugs.

•How often should the ballast be inspected and adjusted on a ballasted flat roof solar system?

Ballast should be inspected annually and adjusted as needed to maintain proper weight distribution and panel stability.

•What type of grounding conductor is recommended for use with the IronRidge BX Chassis?

A stranded copper grounding conductor, sized according to NEC Table 250.122, is recommended. Ensure it is properly sized for the fault current and system voltage.

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Marcus leads the technical research department at Storage Faults. Together with a team of systems analysts, he specializes in translating complex solar storage error codes into actionable diagnostic steps for the US market.

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Common Causes:

Inadequate ballast leading to panel movement and potential wiring strain.
Improper grounding of panel frames, increasing risk of electrical shock.
Loose or corroded grounding connections, compromising fault current path.
Insufficient wire management, causing conductor insulation damage.
Use of incorrect grounding hardware, leading to dissimilar metal corrosion.
Failure to account for thermal expansion/contraction, stressing connections.

Technical Overview:

Ballasted flat roof solar systems rely on weight to secure panels, eliminating roof penetrations. Electrical bonding and grounding are crucial for safety and NEC compliance, minimizing shock hazards and providing a path for fault current. Panel grounding lugs connect to the system grounding conductor, which ties back to the main service entrance equipment.

Safety Warning:

Solar PV systems generate high DC voltage. Only qualified electricians should perform system and maintenance. Arc flash hazards exist. Follow OSHA guidelines for lockout/tagout procedures and wear appropriate PPE, including arc-rated clothing, gloves, and eye protection. Adhere to NEC rapid shutdown requirements (NEC 690.12).

Recommended Action:

1

Verify ballast calculations per IronRidge specifications and local codes. Ensure adequate weight distribution.
2

Inspect grounding connections at each panel using a multimeter to confirm continuity to the system ground (resistance < 1 Ω). Refer to NEC 690.43 for grounding requirements.
3

Torque all grounding hardware to manufacturer specifications using a calibrated torque wrench. Check for any signs of corrosion or loose connections.
4

Ensure all wiring is properly supported and protected from abrasion using appropriate clamps and conduits. Consider using UV-resistant cable ties. NEC 310 requires proper conductor support.
5

Use only UL-listed grounding hardware approved for use with IronRidge BX Chassis and solar panels. Avoid mixing dissimilar metals to prevent galvanic corrosion.
6

Implement a regular inspection schedule to check for loose connections, corrosion, and any signs of panel movement.
7

A qualified electrician must perform all electrical work, ensuring compliance with NEC 2017/2020 and local regulations.

What to Look For:

System utilizes IronRidge BX Chassis for ballasted flat roof solar panel mounting. No specific electrical fault reported; assessment focuses on system integrity and potential for future electrical issues related to grounding and secure panel mounting.

Technical Recommendation:

Use a low-resistance ohmmeter (DLRO) to measure grounding conductor resistance, providing a more accurate reading than a standard multimeter, especially for long conductor runs.

Preventative Care:

Implement a preventative maintenance schedule including annual inspection of ballast, grounding connections, and wiring
Use an IR thermometer to scan connections for hotspots indicating loose terminations
Recalibrate torque on all hardware every 3 years
Perform a grounding resistance test every 5 years to verify system integrity