In the world of cables, "fire safety" is of paramount importance. When we talk about fireproof cables, we often hear the terms "flame retardant" and "fire resistant." They sound similar, but they actually represent two fundamentally different functions and applications. Confusing them can not only increase project costs but, more critically, may create fatal safety hazards in the event of a fire.
Today, we'll precisely and accurately analyze the essential differences between flame retardant and fire resistant cables, based on their structure, materials, cost, IEC testing standards, and applications. This guide will help you make the most professional selection decisions.

In the world of power transmission, medium-voltage (MV) cables (typically 6kV to 35kV) play a crucial role. If you look closely, you'll find that MV cables have a very fixed design in terms of the number of cores: either single-core or three-core. You almost never see four-core or five-core MV cables, which is a significant difference from common low-voltage cables.
Behind this lies a set of rigorous electrical engineering principles. Why can't MV cables have more cores like low-voltage cables? And if we need a three-phase MV power supply with a grounding wire, what are the feasible alternatives?

When selecting electric wires and cables, beyond the conductor material, insulation type, voltage rating, and core count, the choice of armor structure is equally crucial. Armor provides cables with robust physical protection, enabling them to operate stably in various complex or even harsh environments.

But faced with options like unarmored, steel tape armored, steel wire armored, and non-magnetic armored cables, how do we make the smartest decision? Today, we'll offer a detailed guide to cable armor selection, considering various dimensions such as functionality, cost, ease of installation, and application scenarios.

China, with its vast territory, especially its western and northern regions, experiences long, intensely cold winters. In such harsh conditions, electric wires and cables often face the challenge of insulation and sheath cracking during installation and long-term operation. Although cables are indispensable infrastructure in modern society, there are still areas that need clarification and improvement in current product standards and engineering practices regarding cable performance in low temperatures, installation requirements, and storage and transport specifications.
This article aims to provide detailed recommendations for cable selection and installation in low-temperature environments, based on simulated tests of cable low-temperature performance, combined with relevant standards and practical experience.

XLPE insulated cables and PVC insulated cables are basically the same in function, but there are obvious differences in performance, applicable environment etc.