YOROI Fence System [Main Line Theft Prevention] Security Fence

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The theft prevention solution "YOROI Series"

last updated：Apr 24, 2026

HSK

Official site

A high-security fence with a 'multi-layered defense' structure that takes time to break through and carries risks for intrusion.

This product is designed to deter physical destruction and psychological intrusion to the utmost extent around critical facilities such as the number one pillar (power receiving pillar), which is the heart of the solar power plant. It features a "multi-layer defense" that significantly prolongs the time required for intrusion or destruction. Compared to standard fences, it is said to extend the time taken for intrusion or cutting by several times to several tens of times. - Locking System A chain lock and dial lock from ABUS, known for their world-class strength, are installed on the door section. This complicates destruction and unlocking, increasing the "risk of being reported." - Prevention of Screw and Bolt Disassembly (Loctite Application) High-strength locking agents are applied to all screws and bolts used in the assembly of the fence, making it difficult to remove them with tools and providing no entry routes other than brute force destruction. - Barbed Wire Trap on Internal Ground By laying barbed wire on the ground inside the fence, it deprives intruders of stable footing, making it difficult to cut cables while bracing themselves. - Physical Structure Reinforcement (Anti-Climbing Barbs and High-Durability Mesh) Anti-climbing barbs (barbed wire) are installed at the top to prevent climbing over, and high-strength mesh panels are used.

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basic information

【YOROI Fence】 Structure: Security fence surrounding the No. 1 pillar Installation size: Square with sides of 1 meter Height: 2m + anti-climbing spikes Features: Barbed wire on the top of the fence / Installation of a lock that is difficult to cut at the top of the door 【YOROI Fence＋】 Structure: Security fence surrounding the No. 1 pillar Installation size: Adjustable up to a maximum of 2m per side *Can be adjusted in places where a square installation is not possible (excluding gates) Height: 2m + anti-climbing spikes Features: Barbed wire on the top of the fence / Installation of a lock that is difficult to cut at the top of the door

Price information

【YOROI Fence】 Price: 130,000 yen (excluding tax and installation costs) 【YOROI Fence＋】 Price: 190,000 yen (excluding tax and installation costs)

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Applications/Examples of results

<Increasingly Serious "Theft Risks" and "Loss of Sales Opportunities"> With the soaring prices of copper, theft targeting the cables (copper wires) of solar power plants has become widespread across the country. The biggest challenge is not just the repair costs of the cables themselves. Due to the time required for procuring materials and arranging construction, there can be a significant loss of sales opportunities (lost profits) as power generation can be halted for 2 to 3 months until recovery. Furthermore, once a site has been victimized, it is often listed as an "easy target," leading to an increase in "repeat victimization" where theft occurs again before (or shortly after) repair work begins. <Discouraging During the Reconnaissance Stage with "Visible Security"> Professional theft groups often scout locations during the day to assess the ease of committing their crimes. Therefore, it is crucial to create a psychological deterrent that makes them think, "This will take too long to steal" or "Security is tight," not only to prevent nighttime crimes but also during the day. In this case, by installing robust, specialized fences and gateways that cannot be easily cut or destroyed in prominent positions, we are thoroughly implementing "visible security (crime deterrence)" to exclude these sites from being targeted.