Company Scale

Zhejiang Ruikai Electric Co., Ltd. was established in December 2000 with a registered capital of RMB 10 million. Specialising in the production of heat-shrinkable and cold-shrinkable cable accessories, the company operates from an independent factory building covering a floor area of 27,000 square metres and occupying a site exceeding 14,300 square metres.

△Established: 2000

△Business Scope: Research, development, production, and sales of power cable accessories, radiation-modified polymer materials, cable joint boxes, and related equipment.

△Application Fields: Primarily applied in power, electronics, petroleum, chemical, construction, and telecommunications sectors.

△Standards: GB/T 11017.3, GB/T 12706.4, IEC 60804, IEC 60502

△Performance Characteristics: Superior electrical properties and robust mechanical performance; lightweight and easy to install; resistant to ageing; suitable for high and low temperature environments.

△Production Capacity: Products cover cable accessories for voltage levels up to and including 110kV. Equipped with four electron accelerator production lines and external product irradiation processing capabilities.

△Corporate Ethos: Rigour, Passion, Innovation, Integrity, Gratitude, Mutual Success.

☆Certifications

The company holds ISO9001:2015 Quality Management System Certification, ISO14001 Environmental Management System Certification, OHSAS18001 Occupational Health and Safety Management System Certification, and National Production Safety Standardisation Certification. It fully implements the ‘6S’ production management system to achieve zero-defect products, committed to providing customers with stable, reliable, high-value-added quality products.

☆ Production Capabilities

Zhejiang Ruikai Electric Co., Ltd. possesses comprehensive product testing equipment, including nano-electron accelerators, injection moulding machines, and rubber moulding machines. Additionally, the company operates a high-voltage screening and testing centre, fully meeting product inspection requirements.

Rubber exhibits spring-like ‘elastic memory’ properties. Cold-shrink technology, also known as pre-expansion technology, involves pre-fixing elastic rubber within its pre-support elastic range into plastic support strips. During installation, simply removing the support strip allows the elastomer to rapidly contract and form a tight seal against the cable body. All cold-shrink products manufactured by Zhejiang Ruikai Electric Co., Ltd. utilise specialised sealant adhesives to achieve integral sealing, preventing operational failures caused by atmospheric conditions. The silicone rubber material employed offers excellent insulation properties and high resilience, ensuring no electrical breakdown occurs due to cable breathing during operation post-installation. These products find extensive application across power transmission, telecommunications, defence, metallurgy, coal mining, petrochemical, and other industries.

Cold-shrink cable accessories employ full-retraction automatic reset technology, enabling installation without specialised tools for swift and straightforward construction. They operate without open flames or heat generation, ensuring safety and reliability. The cable body maintains continuous radial pressure, delivering superior sealing and waterproofing performance to guarantee long-term dependable operation.

The production of heat-shrink cable accessories involves a series of processes: mixing → moulding → irradiation → expansion → bonding. The shape memory effect of polymer materials forms the fundamental principle behind manufacturing heat-shrinkable materials. The inherent properties of polymer materials confer excellent electrical and mechanical performance, lightweight construction, and ease of installation upon heat-shrink cable accessories. This product integrates waterproofing, stress control, shielding, and insulation, enabling long-term use in various harsh environments. It finds extensive application in power, petroleum, chemical, metallurgical, railway, port, and construction sectors.

Heat-shrinkable cable accessories integrate waterproofing, stress control, shielding, and insulation, enabling long-term operation in diverse harsh environments. They offer excellent electrical and mechanical properties, lightweight construction, and ease of installation. These products find extensive application across power generation, petroleum, chemical processing, metallurgy, railways, ports, and construction sectors.

We specialise in manufacturing electrical facility products including power cable accessories, busbar heat-shrink tubing, custom-shaped heat-shrink products, and silicone rubber safety shielded electrical contacts. Our production facilities also incorporate electron accelerators capable of external irradiation. Products have passed testing by the National Electrical Equipment Quality Inspection and Testing Centre for the Power Industry, meeting the requirements of GB/T1 standards.