Due to their complex systems and continuous use, data centres require stable power because servers and networking gear are highly sensitive to fluctuations in voltage and frequency. Any interruption in power can lead to data loss and service outages, which is why data centres rely upon an uninterruptible power supply (UPS), which provides a buffer between utility power and a data centre’s IT load, ensuring continuous power delivery even during grid disturbances or outages.

Data Centre UPS Systems

By instantly supplying stored energy from batteries or capacitors, UPS units prevent brief disturbances like voltage sags or momentary outages from affecting sensitive servers and network equipment, and as such, they are essential for maintaining protecting critical electronic assets and uninterrupted processing. A UPS system will provide a seamless transition from mains to backup power, and maintaining functions until longer-term solutions like stand-by generators kick in. Many current UPS systems will include advanced features such as power conditioning and surge protection, helping to mitigate risks from electrical noise, spikes, and other power quality issues, which can negatively affect hardware and equipment over time if left unaddressed

Uninterruptible Power Supply - Key for Data Centre Operational Safety

Uninterruptible Power Supply – Key for Data Centre Operational Safety

UPS systems contribute significantly to operational safety for staff and electrical systems in data centres. By delivering clean and consistent power, they reduce the risk of equipment damage which can critically lead to electrical faults, overheating or fire hazards. Moreover, advanced UPS designs often include battery management and monitoring capabilities to alert operators of any early signs of failure or fault, which allows for professional and timely intervention before an incident.

Data Centre UPS Requirements

In Ireland, data centres must follow electrical safety and compliance standards for all UPS and related power infrastructure. While there isn’t a single UPS-specific statutory requirement, compliance is demonstrated through adherence to recognised standards as noted in the National Rules for Electrical Installations, which states that all data centre electrical installations must have earthing and grounding standards, and general health and safety regulatory requirements enforced by the Health and Safety Authority. Likewise manufacturers and data centre operators often rely on EU and industry standards (such as the European Code of Conduct for UPS) to demonstrate conformity and meet energy efficiency criteria.

Installing a UPS System

Carefully selecting, installing, and maintaining a UPS system requires technical expertise and planning. A professional on-site power survey is typically the first step, allowing electricians or electrical engineers to assess load requirements, redundancy needs, and optimal system configuration. All installations must be performed by certified and registered electricians like those at the PAT Group, who can ensure that the UPS is properly integrated with the data centre’s electrical infrastructure, adheres to safety codes, and is ready for safe use.

Data Centre UPS System Maintenance

Ongoing maintenance of UPS systems is equally critical, as similar to any other electrical equipment, UPS systems undergo wear and tear, especially their batteries, which degrade over time and are in high-use environments. Preventive maintenance plans include periodic inspections, testing of battery health, software or firmware updates, and component replacements where necessary. Regular maintenance not only maximises reliability and efficiency but also supports compliance with safety standards and insurance requirements, reducing the likelihood of unexpected failures (and the high financial costs associated with them) and ensuring uninterrupted operation and ongoing performance.

Uninterruptible Power Supply Specialist Ireland - PAT Group

Uninterruptible Power Supply Specialist Ireland

If you need help with the installation, data centre electrical serivces or maintenance of a UPS system for a data centre, or are looking for advice on what will work for your needs, then give us a call now on 01-9602636 or contact us online for more info.

If you found this post helpful make sure you check out our post about Data Centre Electrical Maintenance.