The physical significance and derivation formula of characteristic impedance (typically 50Ω/75Ω) Characteristic impedance is a key electrical parameter of coaxial cables, representing the ratio of voltage to current in a…

Basic Comparison of Shielding Structures Shielded cables utilize one or more conductive layers to block electromagnetic interference (EMI). A single-layer shield generally consists of a braided mesh or foil wrap…

Definition of Insulation Material Temperature Ratings Temperature rating of insulation materials refers to the maximum continuous operating temperature a cable’s insulation can withstand without significant degradation. It is typically measured…

Understanding Voltage Drop: Principles, Formula, and International Standards Voltage drop is the reduction in voltage as electric current flows through a conductor. This phenomenon is governed by Ohm’s Law and…

Five Major Application Scenarios of MI Cables Mineral Insulated (MI) cables are widely used in critical environments requiring high reliability, fire resistance, and safety. Their five major applications include: 1)…

Comparison of 7 Core Differences Photovoltaic (PV) cables are engineered specifically for solar power systems and differ significantly from ordinary cables in multiple performance aspects. The following table outlines seven…

Core Difference Comparison Understanding the distinction between flame-retardant and fire-resistant cables is essential for choosing the correct type for fire safety scenarios. The following table compares these two cable types…

Cable Selection Strategies for Outdoor, Industrial, and Harsh Environments When installing cables in demanding outdoor or industrial settings, it’s critical to select products designed to withstand water exposure, UV radiation,…

Core Feature Comparison: PVC vs XLPE Choosing between PVC (Polyvinyl Chloride) and XLPE (Cross-linked Polyethylene) requires understanding their performance in key parameters. The table below summarizes critical factors to guide…

Why is selecting the appropriate cross-section area critical? Incorrect cable sizing leads to overheating, voltage drops, short-circuit risks, and reduced cable lifespan. For instance, using 1.5 mm² cable for air conditioning…

Emergency Cable Installation Scenarios and Temporary Material Alternatives In emergency conditions—such as power outages, post-disaster recovery, remote-site equipment failure, or a sudden breakdown during installation—standard tools like crimping pliers, insulation…

Scenarios Requiring Temporary Cable Installation Temporary cables are essential in dynamic environments where fixed electrical wiring is impractical or unavailable. These include construction sites, outdoor events, disaster recovery operations, and…