1. Introduction

Electrical surges are momentary high voltage and high current phenomena that occur due to various causes such as lightning, power outages, and equipment failures, and are serious electrical disaster factors that can cause damage to electronic devices, fire, and economic loss . This document systematically introduces the definition of electrical surges, damage cases, and prevention and response measures including surge black boxes, thereby improving electrical safety and securing system reliability .

2. Electrical Surge Overview

• Definition : Abnormal momentary high voltage and high current caused by lightning, switching of high-power devices, power line abnormalities, etc.

• Surge inflow path :

  • External environment (lightning, etc.)

  • Internal systems (equipment switching, etc.)

Major damage :

• Damage to electronic devices and systems

• Equipment failure and power outage

• Increased fire risk

• Shortened equipment life

• Operational interruption and economic loss

3. Countermeasures: Facility and management measures

4. Introduction to Surge Black Box Technology

The surge black box is a smart monitoring device that goes beyond passive surge protection and actively detects, records, and analyzes surge occurrences .

Key Features

• Real-time recording of surge occurrence time, size, direction (internal/external), and number of times

• Leakage current measurement and ground condition analysis

• Data-driven predictive maintenance and accident cause identification

• Real-time alerts and network transmission to administrators

merit

• Preventative maintenance possible

• Tracing the cause and prompt recovery in case of an accident

• Extend equipment life and reduce operating costs

• Building a reliable electrical system

5. Strategic Recommendations

Expanding the introduction of surge black boxes

• Especially in areas with high power sensitivity such as communications, industry, and transportation.

• Establishing a precision diagnosis system for the grounding system

• Customized reinforcement based on leakage current analysis

• Strengthening SPD performance standards and introducing regulations

• Grading and installation obligations based on power characteristics

• Building a platform to share surge accident data

• Developing a prevention model by collecting accident and surge records

6. Conclusion

Electric surges are an 'invisible danger' that comes from outside. We need to move beyond the passive response of simply installing SPDs on equipment to a response strategy centered on continuous monitoring and prevention through active solutions such as surge black boxes . Securing power stability is the key to industrial sustainability and national safety, and a more sophisticated and systematic approach is required.