Electrical Systems and Service
Southern Air’s Residential Team is your one-stop shop when it comes to upgrading and installing new electrical systems for your new HVAC system or full electrical upgrades for your heat pump. And you’ll be getting the same high-quality staff of master certified technicians that you trust with your heating and air.
- Whole-home Generator Installations
- Generator Service and Maintenance
- Electrical Service Upgrades
- Electrical Master Certified
- Factory Trained
- Extended In-house Training
Why Use Surge Protection?
Each home experiences 300-plus potentially damaging electrical surges per year. Home appliances and HVAC equipment, which depend on electronics, are sensitive to these surges. These units are a costly investment for the homeowner, and there typically is no protection.
A surge is a high-amplitude, short-duration electrical fluctuation that can cause harm to electrical, electromechanical, and electronic equipment. Surges are caused by lightning, utility events, and internal events:
Lightning is the most obvious and most sensational type of surge. Lightning can travel up to 1/2 mile from where it strikes. Nothing can prevent a direct strike.
Utility events consist of crossover of phases, capacitor switching, grid shifting, inductive loads, and open neutrals.
Internal events in the home, however, are the most likely source of a surge. A General Electric (GE) and National Power Labs (NPL) study shows that 65 percent to 80 percent of transient surges are caused internally from:
– Pumps (well or pool);
– A/C condenser motors;
– Refrigeration motors;
– Dishwasher motors; and
– Washer/dryer motors.
These events can result in the three D’s of surge problems: degradation (of equipment components), destruction, and downtime.
Surge protectors provide protection against:
Bounce surges from inrush current; and outdoor moisture conduction from local lightning (as noted above, from as much as 1/2 mile away).
A surge protector works by shunting the voltage surge to ground. A good ground is imperative. The National Electrical Code (NEC) maximum resistance at ground is 25 ohms.