Three-phase five line plug: three-phase electric of three a phase line (a,, b, c line), neutral line (n) said work 0 line, and ground (PE) also called protection 0 line, in electrical device of grounding system in the three-phase five line business called TN-S system, ground only in power transformer side and neutral line received with and do repeat grounding, zhihou in full system within n line and PE line is separate of. Zero curve must also be in the middle of the distribution system and at the end of repeated earthing and repeat the grounding resistance is less than 10 ohms.

Wenzhou Jing Niu electrical company are wall switches and accessories, switch plates, wall switch, switch and socket products production and processing company, offering a complete and scientific quality control system. Wenzhou Jing Niu electrical company credibility, strength and quality of products recognized by the industry. Welcome all friends to visit and guide and negotiate business. The company ' seeking truth and pragmatism. Efficient, contributing to ' management, strict quality assurance system, and in the new century, we will follow the ' innovative, progressive, rigorous, practical ' purpose and ' excellent quality, excellence ' to strive for the spirit of enterprise, oriented product, high quality service for your business to take off with winged. Carefully make each product, top quality, high efficiency, Wenzhou Jing Niu electrical company will have a professional attitude and dedication to the spirit, good practices, good credit into service details. Products and services of the exterior and interior are more perfect, prestige, quality, efficient service is always our goal.

Phone: 860577 86926191
Mobile phone: 18668798551
Fax: 860577 28889958
Address: Industrial Park, Tianhe, longwan district, Wenzhou City, Zhejiang, China
Company home page: http://shop1444323527350.1688.com

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