Latest Wire and Cable Articles

Installation of Cable in Cable Trays involves precise routing on support systems, NEC/IEC compliance, grounding, ampacity derating, bend radius control, segregation of services, fire safety, labeling, and reliable cable management for industrial and commercial facilities.   Why Understanding Installation of Cable in Cable Trays Is Important The use of ladder-type trays as raceways for insulated cables is becoming more prevalent. These raceways are being more heavily loaded with increasing number and size of cables being installed. With this growth in the use of tray, it is increasingly important that the tray and cable be installed within industry recognized practices. Discussed…

Aerial cable is an overhead electrical conductor suspended between poles or towers. Used in power distribution and telecom, it offers low-cost installation, reliable performance, and minimal ground disruption. Suitable for rural, utility, and industrial applications.   How Aerial Cable Works These lines are often supported by poles or other structures, ensuring they remain elevated and safely transmit electrical energy. This type of installation is commonly used in both urban and rural areas, providing an efficient means of power distribution where underground cabling is impractical.   Advantages of Taking the High Road Compared to underground cable, aerial cable offers several advantages…

Power cable test verifies insulation resistance, dielectric withstand, continuity, and partial discharge using VLF/hipot methods for HV/MV/LV cables, supporting diagnostics, commissioning, predictive maintenance, fault location, condition monitoring, and compliance with IEC/IEEE standards.   Understanding Power Cable Test: Principles and Applications TYPE TESTS, ACCEPTANCE TEST, ROUTINE TESTSThe following tests are type test of wires used as conductors in electrical power cables.Persulphate test (for copper):Since the tinning process of copper can possibly produce pin holes on the copper, this test is done on tinned copper wire to determine the exposed copper. Typically a sample is taken and subjected to the persulfate solution;…

Power cable diagnostics enables condition monitoring through partial discharge testing, VLF and tan delta analysis, insulation resistance measurements, and online fault location to improve reliability, asset health, and predictive maintenance decisions.   Power Cable Diagnostics Overview and Best Practices Power cable diagnostics are the most advanced ‘tool’ in the ‘toolbox’ of shielded power cable tests. One of the most common questions regarding cable testing tools is how the test will predict the remaining life of the cable. To be clear, a test that will predict remaining cable life does not exist. However, there are cable tests which can help fulfill…

Copper underground transmission delivers high-voltage power via buried copper cables with XLPE insulation, high ampacity, low I2R losses, robust shielding, thermal backfill, and reliable grid integration for urban corridors and constrained rights-of-way.   Basics of Copper Underground Transmission in Electrical Engineering Copper-conductor underground transmission cables for 69 kV to 345 kV installations are generally referred to as High- Voltage Underground Transmission Cables. For installations above 345 kV (usually up to 735 kV) they are known as Extra- High-Voltage Underground Transmission Cables.For readers needing an overview of cable types and ratings, see the concise guide in Know Your Electrical Cables for…

Copper wire theft disrupts electrical infrastructure, targeting utilities, substations, and grounding conductors, risking transformers, power outages, voltage instability, and arc-flash hazards; mitigation includes surveillance, tamper-resistant hardware, asset tracking, and rapid incident response.   Copper Wire Theft and Its Impact on Workplace Safety DANGEROUS, EXPENSIVE, A THREAT TO RELIABILITY Dangerous Each year, thousands of copper wire thefts occur across North America, not only putting the safety of the thief at risk but also endangering emergency responders, utility workers, and local residents.  This ultimately results in power outages, increased costs to utilities that are ultimately passed on to taxpayers, injuries, and, in…