Knowledge for Selecting Copper Bars (Main Bars and Branch Bars) - Ensuring Safety by Selecting According to Standards
【Before】 The selection of the cross-sectional area of the copper bar based on the flowing current has been referenced from the catalog values of copper bar manufacturers. However, since the allowable current values differ among manufacturers even for the same cross-sectional area, we have prioritized safety by selecting larger cross-sectional area copper bars each time, which has led to increased material costs. ↓ 【After】 When you want to determine the cross-sectional area of the copper bar based on the rated current, it is common to refer to the Japan Electric Power Distribution Control System Industry Association standard JSIA303 for cabinet-type distribution boards (III04-2). When prioritizing safety, you can select the necessary cross-sectional area by applying the above formula. *For more details, please refer to the catalog or feel free to contact us.*
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**Effect** The copper bars that conduct electricity are selected based on the Japan Electric Power Distribution Control Association standard JSIA303, cabinet-type distribution boards (III04-2), and the standard specifications for public works supervised by the Ministry of Land, Infrastructure, Transport and Tourism (Electrical Equipment Construction Edition). *For more details, please refer to the catalog or feel free to contact us.*
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For more details, please refer to the catalog or feel free to contact us.
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Hoshimoto Co., Ltd. is a manufacturer that has been producing and selling industrial handles, locks, hinges, grips, copper busbars, and press, cutting, and casting processed products since its establishment. Leveraging the characteristics of manufacturing and sales, we are committed to product development with the motto of creating what is needed. In addition to standard catalog items, we also respond to the production of custom processed products based on our available equipment (press machines, benders, NC lathes, machining centers, headers, zinc die casting machines, milling machines, etc.) as needed. We have obtained ISO 9001:2000 and ISO 14001 certification.