Okay, based on the information you've provided and the website snippet, here's a breakdown of potential issues and things to consider regarding running "Lifeline MC Cable" (presumably a specific brand of Mineral-Insulated Copper-Clad cable, or a similar type of fire-rated cable) through a condo

Understanding the Basics:
MC Cable (Metal-Clad Cable)

This is a factory assembly of one or more insulated conductors enclosed in a metallic sheath of interlocked metal tape or corrugated tube. It provides a degree of mechanical protection. Lifeline MC Cable seems to be a specialized type, potentially with enhanced fire-resistance.

Fire-Rated Cables (RHW-2, RW90, 1-Hour/2-Hour Rated)

These cables are specifically designed to maintain circuit integrity during a fire for a specified period (1 or 2 hours, in this case). They're used for essential life safety systems like fire alarms, emergency lighting, fire pumps, etc.

CBO (Chief Building Official or similar)

This is the authority having jurisdiction (AHJ) for enforcing building codes. Their concern suggests there might be a code violation or permit issue.

3 Individual Cables, No Cable Tray

The absence of a cable tray is not inherently a problem, as long as the cables are properly supported and secured according to code.

Potential Issues the CBO Might Be Concerned About


Improper Use of Fire-Rated Cable



Are these cables being used for a life safety system? If not, using a high-end fire-rated cable might be unnecessary and a cost concern. Building codes often specify WHEN fire-rated cables must be used for specific circuits. Are the cables truly necessary? Confirm the cables are being used for their designed purpose. If this is not an emergency circuit there might be concerns.2. Code Compliance for Cable Installation



Support and Securing

The NEC (National Electrical Code) has strict rules on how MC cable must be supported and secured. Spacing requirements depend on the size and type of cable. The CBO might be concerned about sagging, inadequate support, or improper securing methods.

Bending Radius

MC cable has a minimum bending radius to avoid damage to the conductors. Sharp bends can damage the insulation and create a safety hazard.

Penetrations

If the cables pass through fire-rated walls or floors, the penetrations must be properly sealed with fire-stopping materials to maintain the fire rating of the barrier. The Lifeline cable might be fire-rated, but if the penetration isn't, the system's fire-resistance is compromised.

Accessibility

Are the cables accessible for inspection and maintenance as required by code?

Protection from Physical Damage

Even though MC cable offers some mechanical protection, it still needs to be protected from physical damage in vulnerable locations.3.

Permits and Inspections



Were proper permits obtained for the electrical work? Any electrical work in a condo (especially involving fire-rated cables) typically requires a permit and inspection by the local building department. The CBO might be checking if this was done. Was the installation inspected? The CBO might be following up on a failed inspection or wanting to schedule an inspection.4. Condo Association Rules



Does the condo association have rules regarding electrical work? Some associations have strict rules about modifications to the building's electrical systems, and might require approval before any work is done.5. Improper Cable Type/Rating



Is the specific type of Lifeline MC Cable (RHW-2, RW90, etc.) appropriate for the application? The cable's voltage and temperature rating must be suitable for the intended use. The CBO may have reviewed the permit and determined the cable is not approved or correct for the usage.

Steps to Take


Gather Information



Talk to the electrician who installed the cables. They should be able to explain the purpose of the cables, why that specific type was chosen, and how they were installed in accordance with code. Get copies of any permits that were pulled for the electrical work. Review the condo association's rules regarding electrical modifications. Contact Priority Wire & Cable or Lifeline directly - ask them what the intended purpose is for those cables.2. Contact the CBO



Call the CBO back and politely ask for clarification. Specifically, ask what their concerns are and what code sections they believe are being violated. Understanding their concerns is the first step to resolving the issue. Be prepared to provide information about the installation, including the purpose of the cables, the electrician's information, and permit numbers.3. Review the NEC and Local Building Codes



Familiarize yourself with the relevant sections of the NEC (specifically Article 330 for MC Cable and any sections related to fire-rated cables). Also, check your local building codes, as they may have additional requirements. If unsure, consult with a qualified electrical engineer or inspector.4. Correct Any Deficiencies



If the CBO identifies code violations, work with the electrician to correct them. This might involve adding supports, re-routing the cables, fire-stopping penetrations, or other necessary modifications.

Important Considerations



Life Safety Systems

If these cables are part of a life safety system (fire alarm, emergency lighting), it's critical to ensure that the installation is compliant with all applicable codes and regulations. Non-compliance could have serious consequences in the event of a fire.

Documentation

Keep detailed records of all work done, including permits, inspections, and any corrective actions taken.*

Professional Help: Don't hesitate to seek professional help from a qualified electrical engineer or inspector if you're unsure about any aspect of the installation.By gathering information, communicating with the CBO, and ensuring compliance with applicable codes, you can address their concerns and resolve the issue. Good luck! Flag for review