Lightning protection and surge protection systems. We provide grounding and lightning protection systems for our commercial, residential and industrial customers. With the ever-increasing surges, spikes and imbalances, A surge protector (or spike suppressor, or surge suppressor, surge diverter, SPD or TVSS) is an appliance or device intended to protect electrical devices from voltage spikes in alternating current (AC) circuits. A voltage spike is a transient event, typically lasting 1 to 30 microseconds, that may reach over 1,000 volts. Lightning that hits a power line can give a spike of over 100,000 volts and can burn through wiring insulation and cause fires, but even modest spikes can destroy a wide variety of electronic devices, computers, battery chargers, modems and TVs etc, that happen to be plugged in at the time.