A voltage surge, also known as a power surge, is a sudden increase in electrical voltage that can occur in an electrical system. This spike can happen due to various reasons, such as lightning strikes, power outages, or the sudden activation of large electrical devices. Voltage surges can damage electrical equipment and appliances, leading to costly repairs or replacements. To protect against voltage surges, many people use devices like surge protectors or uninterruptible power supplies (UPS). These devices help to absorb excess voltage and prevent it from reaching sensitive electronics. Understanding voltage surges is essential for maintaining the safety and longevity of electrical systems and devices.