Mobile MRIs are a flexible imaging option for healthcare facilities that do not have permanent installations. They make imaging more accessible to rural areas and help patients receive care on time. However, to host a mobile MRI, the intended site needs to meet the necessary power and infrastructure requirements. A comprehensive site audit can help determine whether a location can support the electrical load, stability, and grounding necessary for mobile MRI functionality.
Perform a Site Audit
Conducting a thorough site audit for a mobile MRI before installation ensures that a facility is fully prepared to support the unit’s power and infrastructure needs. This helps prevent operational failures and costly downtime.
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Voltage and Phase
A 480-volt power supply for mobile MRI systems is essential for stable operation and uninterrupted imaging. A 3-phase configuration ensures proper power distribution, prevents fluctuations that could interfere with scans, and ensures stable operation. To avoid uneven power distribution and potential overheating, the system must not exceed a +2% phase-to-phase voltage difference. A facility should have a Russellstoll connector, the standard for mobile MRIs, located within easy reach of the mobile unit’s power cord.
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Amperage
A dedicated circuit is essential to provide stable power for a mobile MRI unit. Depending on the system model, facilities must provide between 150 to 200 amps of electrical capacity. The breaker system should be equipped with three 100-amp fuses to regulate power distribution and prevent overload. Without proper power, the MRI system may fail or experience interruption mid-scan; this can lead to delays and potential damage to the unit.
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Power Fluctuations
MRI machines are highly sensitive to any variation in electrical supply, making power stability a crucial factor in site readiness. Before installation, a power audit needs to be performed to detect any surges or voltage inconsistencies. The auditor will analyze power conditions over multiple days to help identify any recurring anomalies that could affect the performance of the mobile unit. For mobile MRI units, the voltage should not fluctuate more than ±10% from nominal steady-state power.
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Grounding
A mobile MRI unit requires proper grounding to ensure electrical stability and equipment protection. To meet safety standards, facilities must install a dedicated grounding rod within 5 feet of the power receptacle. Poor grounding can result in power noise, signal interference, or electrical arcing, all of which compromise the MRI’s functionality.
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Site Preparation
A firm and stable surface is necessary for the placement of a mobile MRI. Facilities must provide a concrete pad measuring at least 60 feet by 18 feet or 4×4 1/2-inch pads for each leg, which will support the trailer’s weight and prevent shifting. Surrounding infrastructure should also be evaluated, ensuring that no high-voltage power lines, moving metal objects, or emergency vehicle traffic interfere with MRI operation.
Unsure About Site Requirements?
Not every facility is immediately equipped to meet the power and infrastructure demands of a mobile MRI. If there is any uncertainty, contact Platinum Mobile Imaging to do a site audit before proceeding with installation. We provide expert site audits to assess power availability and stability, grounding and voltage compliance, and site accessibility.
If modifications are needed, contacting a licensed electrician can help facilities fall into compliance. Proactively addressing these adjustments before installation prevents costly delays and ensures a smooth setup.
Contact Platinum Mobile Imaging
By adhering to these site audit requirements, facilities can eliminate power-related issues and optimize imaging performance. A properly prepared site not only enhances MRI efficiency but also reduces downtime and maintenance risks.
Platinum Mobile Imaging specializes in site assessments and installation support, helping facilities navigate power requirements and site preparation with confidence, whether you need a full site audit, expert recommendations, or assistance with power modifications.
