Large-scale mining in Chile is moving toward a new and more efficient operating standard with lower emissions. ABB warns that declining ore grades, electrification of fleets, and the widespread use of desalinated water will increase the power consumption of mining operations. The company highlights the importance of medium-voltage distribution technologies, including switchgears and digital protection solutions. Additionally, Cochilco projects that electricity consumption in Chilean copper mining will rise from about 28 TWh in 2025 to 33 TWh by 2034. Electricity use will increase for crushing, grinding, concentration, pumping, and material handling processes. Mining companies also need internal electrical networks to handle higher and more variable loads without compromising reliability. The increase in electricity and water demand will demand the expansion of supporting infrastructure, including desalination plants, pumping stations, transmission connections, and renewable-energy facilities. These connections hence lead to the demand for robust power line hardware such as span clamps.
High-quality clamps provide secure attachment points and support for wires and cables in overhead infrastructure. They grip a messenger wire and create a fixed anchor for supporting service drops or contact wires. The clamps have interlocking teeth that penetrate the wire’s outer layer for a strong hold. Some designs use an elastomeric bush that compresses around the conductor to absorb deflection and prevent local damage. In mining operations, span clamps support trolley wires for electric railway systems used to transport materials. The clamps attach to I-beams within the mine to securely hold the conductor wire. Span wire clamps also support overhead installations at mining operations where aerial cabling is critical. These spans also secure the catenary wire to the span wire, suspend contact wires, and attach auxiliary equipment.
Quality assurance for span clamps used in mining electrical infrastructure
Span clamps secure conductors and help maintain the needed mechanical and electrical integrity of the line. Chile’s mining safety regulations need electrical materials and equipment used in mining operations to have a certified quality from an authorized body. Conducting quality assurance is crucial for the clamps facing exposure to dust, vibration, temperature variation, corrosive conditions, and strong winds. QA for the clamps begins with verifying materials used to manufacture span clamps. It also involves manufacturing inspection, mechanical load testing, corrosion-resistance inspection, conductivity verification, and torque control. Quality assurance for span clamps helps maintain the mechanical stability, electrical continuity, and service life of the overhead network. This is crucial as Chilean mines depend on reliable electrical infrastructure for electrified equipment, processing facilities, pumping systems, desalination infrastructure, and other high-power operations. Quality-assured span clamps contribute to improved conductor security, reduced connection failures, and better resistance to mechanical loads.
The importance of span clamps in mining equipment in Peru
Peru’s mining sector depends on reliable electrical infrastructure as mines adopt greater electrification, automation, and digital control. ABB reported that electrification, automation, and digitalization improve productivity and reduce operation in Chilean mining. Span clamps secure and support conductors used in overhead electrical networks. These networks support processing plants, pumping facilities, substations, and renewable-energy connections. Here are their key roles in mining infrastructure.
- Supporting overhead conductors—the span clamps maintain the mechanical position and stability of conductors between supporting structures. They offer conductor support that helps maintain clearance and reduces unwanted movement caused by wind and vibration.
- Maintaining mechanical integrity—the clamps distribute gripping forces and help prevent conductor slippage, mechanical stress, and localized conductor damage. This design is ideal since the conductors in the mines experience tension and wind loading.
- Supporting electrical continuity—span clamps provide conductor engagement while avoiding excessive deformation to the conductor.
- Supporting mining electrification—mining operations need higher electrical that demands dependable distribution infrastructure that supplies processing equipment, pumps, and conveyors.
ABB technology and mining electrification in Chile
ABB highlighted medium-voltage switchgear, protection systems, digital assets, and predictive maintenance to improve electrical resilience in mining. The high penetration of renewable generation introduces variability into the electricity system that increases the need for flexibility and reliable electrical infrastructure for mining operations. ABB’s medium-voltage technologies manage electricity distribution within industrial and mining facilities. Switchgear and protection equipment can detect abnormal electrical conditions and isolate affected sections of a network. The technologies offer digital protection and monitoring, predictive maintenance, integration with renewable energy, and supporting higher electricity demand.