森長電子 List of Products and Services

We would like to introduce examples of lightning damage countermeasures for electrical equipment at aviation facilities. Airports, with their vast land area and tall structures such as terminal buildings and control towers, have seen an increase in lightning damage frequency due to recent enhancements in transport capacity, which have led to increased flights and larger aircraft being relocated to mountainous areas. To establish a highly reliable system essential for airport operations, lightning protection measures are also indispensable. Our company proposes various lightning protection measures considering different types of lightning damage for various electrical and communication equipment, including apron lighting systems, and installs surge protectors for power supply and communication/signaling purposes. [Main Lightning Protection Products (Partial)] ■ Surge Protectors for Power Supply - VAJ Series - VNJ Series ■ Surge Protectors for Communication and Signaling - VTJ Series - VCJ Series *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning damage countermeasures for electrical equipment in universities (research facilities). Universities (research facilities) have many expensive devices installed, such as precision instruments, research equipment, and supercomputers. In addition to the damage to the equipment itself caused by lightning strikes, the interruption of experiments, loss of observational data, and disappearance of research data due to lightning damage can result in even greater losses. Our company has supplied a large number of lightning protectors, primarily for high-capacity power supplies, to a science and engineering university located in a mountainous area where lightning strikes are frequent and concerns about lightning damage to various equipment were raised. 【Case Overview】 ■ Issues - Attention is needed to ground lightning surges that can wrap around from lightning strikes to lightning rods and other devices. - In cases where there are multiple buildings, the ground potential difference between buildings can cause lightning surges to propagate not only to the building that was struck but also to nearby buildings. ■ Countermeasures: We propose VAJ-type lightning protectors for high-capacity power supplies at the main power distribution panel of floors with critical loads, and VNJ-type and VTJ-type lightning protectors for communication lines and signal lines depending on the equipment situation. *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning damage countermeasures for electrical equipment at fire departments. Fire departments are critical facilities where the maintenance of power and communication lifelines is required at a high level even during emergencies. To support prompt and accurate command operations and disaster site activities in response to diversifying and large-scale disasters and increasing emergency requests, it is essential to implement lightning protection measures that do not compromise the functionality of communication equipment. Due to the importance of operations related to human life, our company proposes various measures to prevent system shutdowns caused by lightning damage and installs lightning protection devices for power supply, communication, and signaling. [Main Lightning Protection Products (Partial)] ■ Lightning protection devices for power supply - VAJ Series - VNJ Series ■ Lightning protection devices for communication and signaling - VTJ Series - VCJ Series *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning damage countermeasures for electrical equipment in factories. In advanced factories, all equipment is highly digitized and interconnected through a network. As a result, damage in one area can often spread throughout the entire network, making it necessary to consider lightning protection measures for the entire factory. Our company focuses on lightning protection measures through on-site surveys, and we have a track record of implementing these measures in factories across various locations. We have received particularly high praise for our countermeasures concerning power equipment, such as servers, inverters, and DC power supplies, which are significantly affected by lightning, as well as instrumentation devices that are essential for plant operations. 【Main Lightning Protection Products (Partial)】 ■ Surge Protectors for Power Supply ・VAJ Series ・VNJ Series ■ Surge Protectors for Communication and Signal ・VTJ Series ・VCJ Series *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning damage countermeasures for electrical equipment at dams. Dams are located in mountainous areas with a high frequency of lightning strikes, and due to the distance between the monitoring station and the equipment within the dam body, an environment conducive to potential differences is created. Lightning strikes in the vicinity have caused damage to dam management equipment, and if the dam management system stops, it could lead to the worst-case scenario, making reliable lightning protection measures necessary. Our company has installed the VAJ series at the main power panel of the electrical room to protect the monitoring station's equipment from direct lightning surges, and we have provided grounding SPDs to equalize potential between grounding electrodes. [Case Overview] - Proposals for lightning protection measures suitable for the local situation and design of lightning protection panels - Implementation of countermeasures for equipment at risk of lightning surges, including meteorological observation devices, discharge warning systems, CCTV cameras, telephone lines, leakage flow meters, water level gauges, seismometers, audit corridor lighting, and signal lines between the monitoring station and each gate. *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning protection measures for electrical equipment at water-related treatment facilities. Water supply and sewage facilities are critical infrastructure where shutdowns are not permitted. However, many of these facilities are located in suburban or mountainous areas with frequent thunderstorms, and they often contain instrumentation equipment and telemetry, which are relatively susceptible to lightning strikes, leading to a high incidence of lightning damage. Our lightning arresters are installed on power supplies, communication lines, instrumentation signal lines, inverters, and various equipment both inside and outside the facility, protecting the equipment from lightning. 【Case Overview】 - Lightning arresters are installed on the power supply sections of telemetry panels and instrumentation panels, as well as on telemetry communication lines and measurement signals from field equipment. - We also propose installation on the power supply and signal lines of measurement equipment on the field side. - In cases where wiring distances are long, lightning arresters are installed on self-owned communication lines between equipment and control signal lines between panels. *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning damage countermeasures for electrical equipment in disaster prevention administrative wireless systems. Disaster prevention administrative wireless systems are essential equipment for local governments' crisis management, serving as a means of communication to convey emergency information to residents. In recent years, there has been an increasing trend of operational failures and damage to wireless substation equipment due to lightning strikes, making it crucial that these systems function reliably when needed. It is necessary to implement lightning protection measures that do not compromise the functionality of such highly public wireless equipment. Our company often installs automatic power lightning protection devices with built-in lightning arresters and auto control breakers, as well as emergency power switching panels. 【Main Lightning Protection Products】 ■ Lightning Arresters for Power Supply ・VAJ Series ・VNJ Series ■ Lightning Protection Related Products ・ALPS Series ・Emergency Power Switching Panels *For more details, please download the PDF or feel free to contact us.

We would like to introduce examples of lightning damage countermeasures for electrical equipment in CCTV cameras. CCTV cameras are becoming smaller and more high-performance, which tends to make them more vulnerable to lightning. In particular, since they are installed outdoors to monitor roads, rivers, and flooding, they are susceptible to both direct and induced lightning strikes. To protect important social infrastructure equipment, our lightning arresters are implemented in the equipment housing to safeguard against lightning damage. 【Case Overview】 ■ Issue: Surveillance cameras for road information, etc., are installed at high outdoor locations, resulting in a significant amount of equipment damage due to lightning. ■ Countermeasure: Lightning arresters and auto-control breakers are built into the equipment housing of the surveillance cameras. *For more details, please download the PDF or feel free to contact us.