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Electrical Wiring Sizes
SBS-NC, LLC HVAC & Electrical • May 8, 2023

A comprehensive analysis on electrical wiring sizes

     Electrical wiring sizes play a crucial role in ensuring the safety and efficiency of any electrical installation, whether it is residential, commercial, or industrial. Choosing the right wire size is essential for preventing electrical hazards such as fires, overheating, and electrical shock. This comprehensive analysis will discuss factors that influence the selection of electrical wiring sizes, including wire gauge, ampacity, voltage drop, and insulation type. We will also provide examples to help illustrate the importance of selecting the appropriate wire size for a given application. High Point, NC is a city that showcases various types of electrical installations, making it an ideal location to discuss the importance of proper wire sizing.


     Wire gauge is a system that indicates the physical size of a wire, rated with a numerical designation that runs opposite to the diameter of the conductors. The American Wire Gauge (AWG) system measures wire gauge, with common sizes including 16-, 14-, 12-, 10-, 8-, 6-, and 2-gauge wire. The size of the wire dictates how much current can safely pass through it without overheating or causing a fire. Electrical current is measured in amps, and each wire gauge has a maximum safe carrying capacity, or ampacity. For example, a 14-gauge wire can handle up to 15 amps, while a 10-gauge wire can handle up to 30 amps.


     Selecting the correct wire size for a circuit depends on various factors, such as the planned load on the circuit, the number of outlets or light fixtures, and the length of the circuit. To calculate the load on a circuit, add up the wattage ratings of all the devices that will be used on that circuit. For instance, if you have a circuit with four 60-watt light bulbs and a 120-watt fan, the total load on that circuit is 360 watts.

To determine the minimum wire size for a circuit, divide the load by the voltage and then multiply by a safety factor of 1.25. This gives the minimum amperage rating for the wire. Choose a wire gauge that can handle at least that amount of current. For example, in the case mentioned earlier, either a 14-gauge or 12-gauge wire would be appropriate.


     Voltage drop refers to the decrease in voltage that occurs as electrical current travels through a wire. The longer the wire and the smaller its diameter, the more significant the voltage drop will be. A significant voltage drop can lead to reduced efficiency and potential damage to electrical devices. To minimize voltage drop, choose a wire size that can maintain the required voltage level over the entire length of the circuit. For instance, in installations across High Point, NC, taking voltage drop into account is vital for optimal electrical system performance.


     The insulation material used in electrical wiring also influences wire size selection. Different insulation materials have different temperature ratings, affecting the current carrying capacity of the wire. For example, a wire with higher temperature-rated insulation can carry more current without overheating compared to a wire with lower temperature-rated insulation of the same diameter. High Point, NC electricians must consider the insulation type when determining the appropriate wire size for a given installation.


     Consider a residential electrical installation in High Point, NC, where a 15-amp circuit is required for lighting and receptacles. To safely accommodate this load, a 14 AWG wire with a current carrying capacity of 15 amps is necessary. If a smaller wire, such as 16 AWG, were used, it could overheat and potentially cause a fire due to its lower current carrying capacity.


     In another example, suppose an industrial facility in High Point, NC needs to power a 50-amp

motor located 100 feet away from the main electrical panel. In this case, a 6 AWG wire would be required to minimize voltage drop and ensure the motor receives the appropriate voltage level for efficient operation. Using a smaller wire, such as 8 AWG, might result in excessive voltage drop, leading to poor motor performance and possible damage.


     In a commercial building in High Point, NC, a dedicated circuit for a high-powered server might require a 30-amp wire. To ensure the server receives enough power without the risk of overheating, a 10 AWG wire with a higher temperature-rated insulation should be used. This wire size will provide the necessary ampacity while also accounting for potential voltage drop due to the length of the circuit.


     Selecting the correct electrical wiring size is crucial for the safety, efficiency, and performance of any electrical installation. By considering factors such as current carrying capacity, voltage drop, and insulation type, electricians in High Point, NC, and beyond can ensure that their installations are up to code and functioning optimally. Proper wire sizing is not only a matter of meeting industry standards but also of safeguarding property and lives from potential electrical hazards. By understanding and applying these principles, professionals can design and maintain electrical systems that are both safe and efficient.


     Selecting SBS-NC, LLC as your go-to electrical service provider is a wise choice that guarantees the security, effectiveness, and dependability of your property's electrical systems. Our team consists of highly qualified, certified, and experienced electricians who are committed to delivering top-notch service and ensuring each project meets the most stringent industry standards. We offer a comprehensive array of services, encompassing installation, maintenance, and repair, so you can have confidence that our team will adeptly tackle any electrical issue you may encounter. Additionally, our dedication to staying current with cutting-edge industry developments allows us to offer innovative, customized solutions designed to meet your unique electrical needs. Call us today!


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How Long Do Chiller Systems Last? Repairs vs. Replacing in Winston Salem, NC
By SBS-NC, LLC Commercial HVAC March 18, 2025
When it comes to commercial HVAC services in Winston-Salem , chiller systems play a crucial role in keeping buildings comfortable and operations running smoothly. But how long do chillers last? And when is it better to repair vs. replace? Understanding the lifespan of your chiller system can help you make cost-effective decisions and avoid unexpected downtime. How Long Do Chiller Systems Last? The average lifespan of a commercial chiller depends on factors like maintenance, usage, and environmental conditions. Air-Cooled Chillers : 15–20 years Water-Cooled Chillers : 20–30 years Absorption Chillers: 25–30 years With regular maintenance and chiller repairs , many systems can last beyond their expected life. However, as chillers age, they become less efficient, leading to higher energy costs and frequent breakdowns. Chiller Repairs vs. Chiller Replacement When to Repair a Chiller? If your chiller is still relatively new and issues are minor, repairs can extend its life and keep costs down. Signs your chiller may only need a repair include: ✅ Minor Performance Issues – If cooling output is slightly reduced but overall efficiency remains stable. ✅ Leaks or Refrigerant Issues – Small refrigerant leaks or sensor malfunctions can often be repaired cost-effectively. ✅ Inconsistent Temperature Control – If fluctuations are caused by a faulty sensor, thermostat, or minor electrical issue. ✅ Mechanical Wear & Tear – Bearings, fans, and pumps can be replaced without needing a full system replacement. Routine commercial HVAC services in Winston-Salem, including preventive maintenance and regular tune-ups, can reduce the need for major chiller repairs. When to Replace a Chiller? At some point, chiller repairs become too costly, and a full replacement is the smarter choice. Signs it’s time for a new system include: ❌ Frequent Breakdowns – If you’re constantly calling for emergency chiller repairs, replacement might be more cost-effective. ❌ Rising Energy Costs – Older chillers lose efficiency, leading to skyrocketing utility bills. New systems are far more energy-efficient. ❌ Obsolete Technology – If your chiller uses outdated refrigerants (like R-22, which is being phased out), replacement is necessary. ❌ Inconsistent Performance – If your chiller struggles to maintain temperatures, it could indicate major internal failure. Upgrading to a modern, energy-efficient chiller system can reduce commercial HVAC costs while improving reliability. How to Extend the Life of Your Chiller in Winston-Salem For businesses in Winston-Salem, regular maintenance is the key to maximizing the lifespan of your chiller system. Here’s how: 🔧 Schedule Preventative Maintenance – Regular inspections catch issues before they turn into major failures. 💧 Optimize Water Treatment – For water-cooled chillers, proper water treatment prevents corrosion and scaling. 🛠️ Upgrade Components – Instead of replacing the entire unit, upgrading motors, compressors, and controls can improve efficiency. 📊 Monitor Performance with BAS/BMS – Modern building automation systems (BAS) help track chiller efficiency in real time. By working with an experienced commercial HVAC service provider in Winston-Salem, you can ensure your chiller remains efficient and reliable for years to come. Need Chiller Repairs or Replacement in Winston-Salem? If your chiller is experiencing performance issues, SBS-NC, LLC offers expert chiller repairs and commercial HVAC services in Winston-Salem , Greensboro , High Point and the surrounding areas. Our technicians provide reliable repairs, preventive maintenance, and full system replacements to keep your building comfortable and efficient. 📞 Contact us today for a chiller system inspection and get a free consultation on repair vs. replacement options!
Commercial HVAC in Winston-Salem
By SBS-NC, LLC Commercial HVAC March 12, 2025
As winter fades and temperatures rise in Winston-Salem , commercial buildings must transition their Commercial HVAC systems from heating mode to cooling mode. This change is essential to maintain indoor comfort, energy efficiency, and prevent unexpected AC repairs that could disrupt business operations. Why the Seasonal Transition Matters Switching from heating to cooling isn’t as simple as flipping a thermostat . Over the winter months, your Commercial HVAC system accumulates dust, experiences wear and tear, and may have developed hidden issues. Without proper maintenance, your system could struggle to keep up with the summer heat, leading to inefficiency and costly AC repairs . Steps to Prepare Your Commercial HVAC for Cooling Season To ensure a smooth transition, follow these essential steps: 1. Schedule a Professional HVAC Inspection A licensed Commercial HVAC technician in Winston-Salem can inspect your system for wear and tear, refrigerant levels, and airflow issues. Catching minor problems early can help avoid expensive AC repairs later in the season. 2. Clean or Replace Air Filters Dirty filters restrict airflow, forcing your system to work harder and increasing energy costs. Changing filters regularly improves efficiency and indoor air quality, ensuring optimal performance for your cooling system. 3. Check Thermostat Settings Adjust your thermostat from heating to cooling and ensure it’s programmed for peak efficiency. Smart thermostats can help businesses in Winston-Salem reduce energy costs by automatically adjusting temperatures based on occupancy. 4. Inspect Ductwork and Vents Leaks or blockages in ductwork can reduce cooling efficiency and lead to uneven temperature distribution. Ensuring vents are clean and unblocked helps maintain consistent airflow throughout your commercial space. 5. Test Your AC System Before peak summer temperatures hit Winston-Salem, turn on your air conditioning system to check for unusual noises, weak airflow, or inconsistent cooling. If you notice any issues, schedule AC repairs immediately to prevent a breakdown during the hottest months. 6. Schedule Preventative Maintenance Routine maintenance is key to prolonging the life of your Commercial HVAC system. An HVAC professional can perform coil cleaning, check refrigerant levels, and ensure all components are functioning properly before heavy summer usage. Benefits of a Well-Maintained Cooling System Lower Energy Bills – A properly maintained Commercial HVAC system operates more efficiently, reducing energy consumption. Fewer Emergency AC Repairs – Preventative maintenance helps avoid sudden breakdowns and costly repairs. Improved Indoor Air Quality – Clean filters and ductwork help reduce allergens and pollutants, creating a healthier environment for employees and customers. Extended Equipment Lifespan – Regular maintenance reduces strain on your system, helping it last longer and perform better. Need Commercial HVAC Service in Winston-Salem ? If your business is preparing for the cooling season, our team at SBS-NC, LLC is here to help. We provide expert AC repairs and Commercial HVAC maintenance services to keep your system running smoothly all summer long. Contact us today to schedule your seasonal tune-up!
Finding the right Commercial HVAC contractor in Greensboro, NC
By SBS-NC, LLC Commercial HVAC February 21, 2025
When it comes to keeping your business comfortable year-round, choosing the right commercial HVAC contractor is crucial. Whether you need AC repairs, preventative maintenance, or a full system replacement, working with a trusted and experienced HVAC provider ensures efficiency, reliability, and cost savings. At SBS-NC, LLC , we’ve been serving businesses in Greensboro, NC and across the Southeastern U.S. since 1991. Unlike many HVAC companies, we self-perform all HVAC work—no subcontractors, no delays—just expert service you can trust. Here’s how to find the right commercial HVAC partner for your business and why SBS-NC, LLC is the best choice. 1. Look for Experience and Expertise Commercial HVAC systems are complex and require a specialized skill set that differs from residential HVAC work. When selecting a contractor, consider: Years in business – SBS-NC, LLC has over 30 years of experience handling all aspects of commercial HVAC systems. Certifications and training – Our technicians are fully certified and continuously trained in the latest HVAC technologies. Industry specialization – We work with businesses of all sizes, from small offices to large corporate facilities, ensuring tailored solutions for your needs. 2. Prioritize a Contractor Who Self-Performs All Work Many HVAC companies subcontract their work, which can lead to delays, inconsistent quality, and hidden costs. At SBS-NC, LLC, we take pride in handling all HVAC projects in-house. This means: ✔ No middlemen—just direct service from trained professionals. ✔ Faster response times and seamless project management. ✔ Greater accountability for quality and customer satisfaction. 3. Ensure They Offer Comprehensive Services A good commercial HVAC contractor should be able to handle all of your business’s HVAC needs, including: Preventative maintenance to keep your system running efficiently and reduce unexpected breakdowns. AC repairs to quickly restore cooling and comfort in your building. RTU (rooftop unit) replacements for improved energy efficiency and performance. Emergency services for urgent HVAC issues that can’t wait. At SBS-NC, LLC, we specialize in all of the above, helping businesses in Greensboro, NC stay ahead of HVAC issues before they impact operations. 4. Check Customer Reviews and Reputation A company’s reputation speaks volumes. Before hiring an HVAC contractor, check online reviews and ask for customer references. We take pride in our long-standing relationships with businesses across Greensboro and beyond. Our clients appreciate our reliability, professionalism, and ability to deliver top-notch HVAC services without outsourcing the work. 5. Look for Energy-Efficient Solutions Energy-efficient HVAC solutions can significantly reduce your operating costs. A reputable contractor will offer energy-saving options such as: High-efficiency HVAC systems Smart thermostats and zoning systems Regular maintenance to optimize performance At SBS-NC, LLC, we help businesses upgrade their systems for maximum efficiency and cost savings, ensuring long-term benefits. 6. Choose a Contractor That Understands Local Needs Greensboro’s climate presents unique challenges for HVAC systems, from hot, humid summers to chilly winters. A local contractor like SBS-NC, LLC understands these regional factors and can recommend solutions tailored to your business’s needs. SBS-NC, LLC is Your Trusted Commercial HVAC Partner When searching for a commercial HVAC contractor in Greensboro, NC, don’t settle for anything less than a trusted, experienced, and self-performing team. At SBS-NC, LLC, we are committed to delivering high-quality AC repairs, preventative maintenance, and system replacements to keep your business running smoothly. If you’re looking for reliable commercial HVAC services in Greensboro , contact SBS-NC, LLC today. Our team is ready to provide expert solutions tailored to your business’s unique HVAC needs. 📞 Call us today to schedule a consultation!
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How Does Snow Affect Commercial HVAC Units? As winter sweeps through Winston-Salem, NC , business owners must consider how snow and ice impact their commercial HVAC systems . Whether you run a retail store, office space, or industrial facility, the performance of your heating and cooling systems can make or break your comfort, productivity, and energy efficiency . Snow poses unique challenges for commercial heating and HVAC systems, and addressing these issues promptly can save you from costly heating repairs . In this blog, we’ll explore how snow affects commercial HVAC units and offer practical tips to protect your investment. The Impact of Snow on Commercial HVAC Systems 1. Blocked Airflow Snow accumulation around rooftop or outdoor HVAC units can block airflow, causing the system to overheat or malfunction. Restricted airflow reduces efficiency, leading to higher energy bills and unnecessary strain on the equipment. 2. Frozen Components Ice buildup on heat pumps, coils, and condenser units can damage essential components. Frozen parts may crack, leading to costly repairs or replacements. Prolonged exposure to freezing conditions without proper maintenance could also shorten the lifespan of your commercial HVAC system. 3. Excess Moisture Melting snow introduces excess moisture into your system. If not drained properly, this moisture can lead to rust, corrosion, and electrical issues, all of which can compromise the performance of your heating equipment. 4. System Overload During colder months, commercial heating systems often work overtime to maintain a comfortable indoor temperature. Snow and ice further increase the workload, putting your HVAC unit at risk of overheating or breaking down. 5. Roof Damage For rooftop HVAC systems, the weight of heavy snow can damage structural supports, potentially misaligning or damaging your unit. This not only impacts performance but also increases repair costs. Preventing Snow-Related HVAC Problems Protecting your commercial HVAC system from snow in Winston-Salem’s unpredictable winter weather doesn’t have to be complicated. Here are some preventative measures: -Clear Snow Regularly: Ensure snow is removed from around outdoor units to prevent airflow blockage. Be cautious to avoid damaging the equipment during snow removal. -Schedule Regular Maintenance: Professional HVAC inspections before winter can help identify vulnerabilities in your system, ensuring it’s ready for colder weather. -Install a Protective Cover: Consider using a cover designed specifically for commercial HVAC systems to shield the unit from snow and ice without obstructing airflow. -Inspect Drainage Systems: Ensure proper drainage to prevent water from pooling and freezing in or around your HVAC unit. -Monitor Roof Conditions: If you have a rooftop HVAC system, inspect your roof regularly to ensure it’s structurally sound and free from excess snow buildup. When to Call for Professional Heating Repairs in Winston-Salem, NC Even with preventative measures, winter weather can sometimes lead to unexpected HVAC problems. If you notice inconsistent heating, unusual noises, or spikes in energy bills, it’s time to call a commercial HVAC professional in Winston-Salem. Prompt attention to these issues can prevent minor problems from becoming costly emergencies. Why Choose Us for Your Commercial HVAC Needs in Winston-Salem, NC? As trusted experts in commercial HVAC systems, we understand the unique challenges winter brings to Winston-Salem businesses. Our services include: - Comprehensive commercial heating maintenance - Quick and reliable heating repairs - Energy-efficient HVAC upgrades tailored to your business Don’t let snow and ice take a toll on your commercial HVAC system. Contact us today to schedule an inspection or repair and keep your business running smoothly all winter long. Contact Us Looking for dependable commercial HVAC services in Winston-Salem, NC? Call us today or schedule an appointment online. Let us help you stay warm and efficient this winter.
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