Qrunning Cable

12/03/2026

The metallic screen is typically made from copper tape, copper wire, or aluminum layers surrounding the insulation of the cable core. Its main purpose is to control the electric field distribution around the conductor and prevent electrical stress from damaging the insulation.

06/03/2026

One of the primary reasons PVC is used in cable production is its strong electrical insulation properties. Polyvinyl Chloride effectively prevents electrical current from escaping the conductor, which reduces the risk of short circuits and improves overall system safety. This makes it an ideal material for many low- and medium-voltage cable insulation applications.
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What is PVC insulation Qrunning is manufacturer of wires and cables in china

06/03/2026

Many people are surprised that overhead high-voltage power lines often look relatively thin compared with low-voltage distribution cables. The reason lies in the relationship between voltage and current. When electrical power is transmitted at higher voltage levels, the required current decreases significantly. Lower current means less heat generation and reduced energy loss during transmission. Because of this principle, engineers can design HV cable conductors with optimized diameters while still delivering massive amounts of electricity efficiently.

05/03/2026

Extending power cable lifespan requires correct selection, professional installation, environmental protection, and proactive cable condition monitoring.
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How to Extend the Service Life of Power Cables Qrunning is manufacturer of wires and cables in china

02/03/2026

Key Characteristics of High-Voltage Cables
1. Excellent Electrical Insulation
2.Low Dielectric Loss
3.High Thermal Stability
4.Superior Mechanical Properties
5.Aging & Corrosion Resistance
6.Flame Retardancy & Fire Resistance
7.Reliable Shielding Structure
8.Long Service Life
Related Article：https://www.qrunningcable.com/what-characteristics-define-high-voltage-cables
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High Voltage Cable Qrunning is manufacturer of wires and cables in china

11/02/2026

Our office will be closed from February 13th to February 23rd for the Spring Festival.
Thank you for your support and trust throughout the year. We look forward to a prosperous new year together!

29/01/2026

This is the structure of one of our high-voltage cables, and it features a segmented conductor.

28/01/2026

HV cable systems typically operate between 35kV and 220kV

24/01/2026

This is our factory german SKET 61B concentric strander – precision equipment for stranding medium to high end cable conductors.

23/01/2026

High-standard cables are the foundation of safe and efficient building projects. In the construction industry, construction cables must meet strict electrical, mechanical, and environmental requirements. This includes resistance to heat, moisture, corrosion, and mechanical stress during installation and long-term operation. Selecting products from a qualified Manufacturer ensures compliance with international standards and reduces the risk of failure.

20/01/2026

One of the key processes shown in the figure below: CCV（Catenary Continuous Vulcanization）

19/01/2026

Electronic Tensile Testing Machine - Plastic