

High voltage current limiting fuse, also known as high breaking capacity fuse, is one of the important protection equipment in power system. Their main
Features to include:1, the ability to break the short circuit current is strong: can quickly cut off the current before the short circuit current reaches the maximum value, thus limiting the influence of the fault.
2, significant current limiting effect: by cutting off the current before the short circuit current reaches the maximum, effectively reduce the impact of short circuit current on the power system.
The structure of high voltage current limiting fuses usually includes:
Ceramic housing: provides mechanical protection and insulation properties.
Melt: Generally made of sterling silver, the melt can be filament or ribbon, depending on the rated current. The ribbon melt will have equal distance notches, and the shape and spacing of these notches have an important effect on the performance of the fuse.
Quartz sand: acts as an arc extinguishing medium to help extinguish the arc during the fusing process.
High voltage current limiting fuses work by using the melting and vaporization of the melt to quickly cut off the circuit, thereby protecting critical power equipment such as generators and transformers from short-circuit current damage. However, this fast cut-off process may produce high temperature, high voltage and overvoltage, which may cause equipment failure or the misoperation of the relay protection device.
High voltage current limiting fuses have been used for more than a century, their structure is simple, low cost, and they have good overload and short circuit protection. With the introduction of new materials, new processes and new structures, such as the combination of vacuum fuse and arrester or load switch, its protection performance has been further improved, making it widely used at home and abroad.





honesty and dedication". with the management policy of "integrity management, continuous innovation and service to the society", reliable quality assurance, professional technical services,superior cost performance and honest and pragmatic work style make Jiayi Power become a The best partner for customers at home and abroad.
The company attaches great importance to the introduction of advanced manufacturing technology and production equipment in the industry,improves the company's technical level,product quality and cost optimization through large-scale technology/equipment transformation,and ensures user satisfaction through continuous investment and transformation.The products have high recognition in the national power system and are exported to many countries and regions, and have a good brand effect in the local area.
Our product packaging is meticulously crafted to provide superior protection against external damage and contamination, ensuring the product's integrity and safety throughout transportation and storage.
1. What certificate does your company have?
Our company has international certificates below:
A. Quality management system certificate complies with GB/T 19001-2016/ISO 9001: 2015 requirements;
B. Environmental management system certificate complies with GB/T 24001-2016/ISO 14001: 2015 requirements;
C. Occupational health and safety management system certificate complies with ISO 45001: 2018 requirements.
2. Is your company a factory or a trader? What products can be provided?
I mainly produce: torque locking device series, torsion terminal series, floor shard wire clamp series, stainless steel parallel wire clamp series, energy-saving flat wire clamp, aluminum groove series, C-type wire clamp series, aluminum crimping series and other power fittings products.
3. What are the materials of your products? Can do other materials?
Our product material is alloy aluminum. Sometimes, customers want copper preformed materials, we indeed made it before.
However, we still listen to customers if different materials are required.
4. Can your company provide drawings?
Yes, we can. Drawings are a way of confirming the parameters of the products. By providing drawings, we can avoid mistakes. Sometimes, customers sent some pictures with measuring, we engineer can draw a very good technical drawing based on it.
5. Can you provide a Certificate of Origin? Or invoices certified by Embassies?
We have been already recorded and registered in the Commodity Inspection and Quarantine Bureau and the Embassy, so we are qualified to issue certificates of origin and invoices for different countries.
6. When customers show the target price or price from other suppliers, can you agree that?
We are happy when clients give us their advice about the buying price, that means, customers have interested to our company and products, and may in some way, also have trust in us. In this way, it's no doubt to carefully check the target price from customers, listen to their requirements of quality. Give the best solutions.