1. Use (H) RW 12-27 drop fuse and pull-load drop fuse are outdoor high-voltage protective appliances, which are assembled on the high-voltage side of distribution transformer or branch lines of distribution line, and are used for overload and short-circuit protection of transmission lines and power transformers and for sharing rated load current. 2. Brief introduction of structure The drop fuse consists of two parts: insulating bracket and fuse pipe. The static contacts are installed at both ends of the insulating bracket, and the movable contacts are installed at both ends of the fuse pipe. The fuse pipe consists of an inner arc extinguishing tube and an outer epoxy glass tube. Pull-load drop fuse adds elastic auxiliary head and arc extinguishing cover to divide and close load current. When a drop fuse is in normal operation, the fuse pipe is tensioned by means of the fuse. Then a closed position is formed. When the system fails, the fault current causes the fuse to fuse rapidly and form an arc. The arc extinguishing tube is heated by the arc and decomposes a large number of gases, which forms a high pressure in the tube and blows longitudinally along the pipeline. The arc is rapidly elongated and extinguished. After the fuse is fused, the lower moving contact loses tension and turns down. The locking mechanism releases the fuse tube, and the fuse tube falls down, forming an obvious breaking position. When the load needs to be pulled, the contact is pulled by the insulating rod. At this time, the active and static contacts are still in contact. The contacts are pulled by the insulating rod, and the auxiliary contacts are separated. Arc is generated between the auxiliary contacts. The arc is elongated in the slot of the arc extinguishing hood. At the same time, the arc is extinguished when the current passes zero. 3. Implementation criteria The product performance conforms to GB15166.3-94 national standard and IEC282-2 international standard. 4. Conditions of Use 1. Environmental temperature: - 40 ~40 C; 2. No more than 1200 m above sea level; 3. The wind speed is not more than 35m/s. 4. Earthquake intensity does not exceed 8 degrees. 5. Fuses are not suitable for the following places: A. Places where there is a danger of combustion or explosion; B. Places with violent vibration or shock; C. Areas with heteroelectrochemical gases, severe air pollution and salt fog. 5. Instructions for Order 1. Product type, name, rated voltage, rated current and rated switching-on current; 2. Environmental requirements (anti-pollution, plateau type); 3. Special requirements can be consulted with our company. Manufacturer of intelligent switch cabinet--low-voltage, high voltage power distribution switch cabinet, also have many other electric equipment electric power accessories, intelligent transmission and distribution automation system
The Outdoor High Voltage Drop Fuse uses (H) RW 12-27 drop fuse and pull-load drop fuse as outdoor high-voltage protective appliances assembled on the high-voltage side of distribution transformer or branch lines of distribution line for overload and short-circuit protection of transmission lines and power transformers, and for sharing rated load current. The drop fuse consists of two parts: insulating bracket and fuse pipe. Static contacts are installed at both ends of the insulating bracket, and movable contacts are installed at both ends of the fuse pipe. The fuse pipe consists of an inner arc extinguishing tube and an outer epoxy glass tube. The pull-load drop fuse adds an elastic auxiliary head and arc extinguishing cover to divide and close load current. During normal operation, the fuse pipe is tensioned by the fuse, forming a closed position. When a system fault occurs, fault current causes the fuse to fuse rapidly and form an arc. The arc extinguishing tube is heated by the arc, decomposes a large number of gases, creating high pressure that blows longitudinally along the pipeline, rapidly elongating and extinguishing the arc. After the fuse fuses, the lower moving contact loses tension and turns down. The locking mechanism releases the fuse tube, allowing it to fall down and form an obvious breaking position. When load needs to be pulled, the contact is pulled by the insulating rod, keeping active and static contacts in contact while auxiliary contacts separate, generating an arc between them that elongates in the slot of the arc extinguishing hood.
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Wisdom Automatic Equipment Co., Ltd. is a premier leather products export company, established in 2010 and based in China. With a decade of experience, Wisdom Automatic Equipment Co., Ltd. has built a reputation for delivering high-quality leather goods to clients across the globe. The company specializes in a wide range of leather products, including bags, wallets, belts, and custom leather accessories, all crafted with precision and attention to detail. Leveraging advanced manufacturing techniques and stringent quality control processes, Wisdom Automatic Equipment Co., Ltd. ensures that each product meets the highest standards. The company’s commitment to excellence, timely delivery, and customer satisfaction has made it a trusted name in the international market.Wisdom Automatic Equipment Co., Ltd. continues to expand its global footprint, exporting its superior leather products to various countries, while maintaining strong relationships with clients worldwide.
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Wisdom Automatic Equipment Co., Ltd., a reliable B2B trader from China, dispatches Outdoor High Voltage Drop Fuse primarily through the port at China. Packaging types (e.g., bulk, custom, eco-friendly) and estimated pricing may vary based on order volume and destination. To get detailed logistics and pricing information, reach out via the Inquire Now button or Sign Up for direct supplier interaction.