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Power Distribution and Surge Protection: Building Resilient Enterprise Data Centers

By Dustin Guttadauro 

Enterprise data centers play a crucial role in the infrastructure of modern businesses, serving as the backbone for a wide range of mission-critical applications. These facilities are responsible for hosting applications that drive daily operations, from customer relationship management (CRM) systems to enterprise resource planning (ERP) solutions.  

Additionally, they support various IT functions, including cloud computing, networking and data storage, which are increasingly vital as organizations continue to rely on digital transformation.  

With the growing demand for data processing and storage capabilities, the importance of maintaining continuous power availability cannot be overstated. Any interruption in power can lead to downtime, which not only affects productivity but also poses the risk of significant data loss and operational disruptions that can have long-lasting repercussions on a business’s reputation and financial health. 

To ensure the resilience and reliability of data center infrastructure, power distribution and surge protection play a foundational role. A well-designed power system is essential for safeguarding critical equipment from electrical anomalies, such as surges and outages, which can cause catastrophic failures. Beyond protection, these systems contribute to improved energy efficiency, allowing organizations to optimize their power consumption and reduce operational costs. 

Core Components of Power Distribution in Enterprise Data Centers 

Core components of power distribution in enterprise data centers include uninterruptible power supply (UPS) systems, power distribution units (PDUs), generators, and circuit breakers with switchgear. UPS systems provide backup power during outages and maintain consistent voltage and frequency. They come in several types: online UPS, which delivers continuous power and isolates connected loads from fluctuations; offline UPS, which activates only when power is lost; and line-interactive UPS, which dynamically adjusts for voltage variations. 

PDUs distribute electrical power to servers, storage and networking devices. These include basic PDUs for simple distribution, metered PDUs that track power usage for efficiency, and intelligent or switched PDUs that enable remote monitoring, control and load management.  

Generators supply backup power during extended outages, typically running on diesel or natural gas, and automatically activate when prolonged failures occur. 

Circuit breakers and switchgear protect equipment from overloads and short circuits while allowing safe maintenance and isolation of power lines. 

Surge Protection in Enterprise Data Centers 

Electrical surges pose serious risks to sensitive IT equipment. They can result from lightning strikes, utility fluctuations or equipment switching, potentially damaging servers, storage devices and networking gear. 

Types of Surge Protection 

Let’s look at three key types of surge protection. First are whole-building surge protectors, which are installed at a facility’s main electrical panel. Second are rack-level surge protectors, which guard individual racks and equipment. Third are point-of-use surge protectors, which provide device-level protection. Explore surge protection devices

Best Practices for Surge Protection 

Four best practices are: implement layered protection for main panel, rack and device-level protection; regularly test and replace surge protection devices; use certified enterprise-grade surge suppression equipment; and integrate with UPS systems for continuous protection. 

Power Distribution and Surge Protection Best Practices 

We offer five best practices. First is the use of redundant power feeds, which are dual utility feeds or separate power sources for high availability. Second is load balancing, the distribution of power evenly across circuits to prevent overloads. Third is energy monitoring, which involves using intelligent PDUs to track usage, identify hotspots and optimize efficiency. The fourth best practice is cooling and power coordination, the proper alignment of power and cooling systems to prevent overheating. And fifth is maintaining clear diagrams of electrical layouts, UPS units and surge protection devices. 

Benefits of Proper Power and Surge Management 

Proper power and surge management in enterprise data centers is essential for maintaining operational efficiency and reliability. First and foremost, it ensures high availability by minimizing downtime caused by power failures, which is needed for mission-critical applications and business continuity. 

It also offers robust equipment protection, extending the lifespan of servers, storage systems and networking devices by shielding them from electrical spikes and fluctuations. Efficient power management contributes to energy efficiency by optimizing load distribution across circuits, reducing operational costs and preventing unnecessary energy waste.  

Additionally, a well-designed power infrastructure supports scalability, enabling data centers to accommodate future growth and the addition of new equipment without compromising performance. 

FAQs About Power Distribution and Surge Protection 

Q1: What is the difference between a UPS and a generator? 
A: A UPS provides instant backup for short-term outages and voltage fluctuations, while a generator supplies power during extended outages. 

Q2: Why is surge protection necessary in data centers? 
A: Surge protection prevents damage from electrical spikes, ensuring continuous operation and protecting sensitive IT equipment. 

Q3: How often should surge protection devices be tested or replaced? 
A: Annually or as recommended by the manufacturer, especially after major electrical events. 

Q4: Can power distribution be monitored remotely? 
A: Yes, intelligent PDUs and DCIM software allow real-time monitoring and control of power usage. 

Q5: What is redundant power and why is it important? 
A: Redundant power means multiple power sources to feed critical equipment, ensuring uptime even if one source fails. 

A resilient enterprise data center requires strategically designed power distribution and surge protection systems. By implementing redundant feeds, intelligent monitoring and layered surge protection, businesses can ensure uninterrupted operations, safeguard equipment and optimize energy efficiency. 

Investing in robust power infrastructure today prepares your data center for future growth, technological advancements and evolving business demands. 

L-com’s broad selection of enterprise data center connectivity products positions us to be your go-to source. For minimal downtime and rapid deployment, we will fill your orders fast, with same-day shipping on all qualified, in-stock, online orders received Monday through Friday before 5 p.m. EST. 

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