SPD refers to "Surge Protective Device," which has traditionally been called a "lightning arrester."
SPD is one type of "surge protective device" that protects power equipment in power generation and transmission systems, demand devices of consumers receiving power, wired communication lines, antenna systems, communication equipment, and so on, from transient overvoltages caused by phenomena such as lightning. In Japan, the installation of SPDs for high-voltage transmission and distribution systems has been mandatory for some time, and there have been specific standards for them. However, there have been no specific regulations for those installed in consumer demand devices, and their application has been based on the voluntary judgment of each manufacturer and consumer.
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basic information
【Features】 ○ Reduces potential difference ○ Direct lightning surge current flows into power lines and other systems ○ Requires a good grounding system. ● For more details, please contact us or refer to the catalog.
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Our company's "flagship product" since its founding is a pure gold ear pick. This is a product that is completely removed from any notion of "efficiency" as it is made entirely by hand, but it embodies the true spirit of Japanese craftsmanship, where we put our utmost effort into each piece. As a company based in Hiroshima, we firmly reject nuclear weapons and all military technology research and development.
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