Application Examples Of Bimetallic Terminal Blocks In Harsh Environments

bimetallic lugs has a wide range of applications and different installation environments, including indoors, rooftops, seaside, deserts... As an electrical connection device, a good terminal product needs to adapt to a variety of installation environments and have excellent physical properties.

The Caraja mine in Parasi, northern Brazil, is one of the world's largest iron ore mines, with an estimated reserve of 7.2 billion tons of iron, gold, manganese, bauxite, copper, nickel and other valuable ores. In order to ensure the stability, safety and high productivity of such a large mine, the site needs full process automation. Mining operations rely heavily on a nearly 37-kilometer-long automated ore handling conveyor belt system, which can greatly reduce the use of ore transport vehicles with environmental pollution and high carbon emissions, making production stable and efficient. The conveyor system needs to be equipped with a distributed control system (DCS) along the conveyor belt of the conveyor system, and the signals from various parts of the conveyor are transmitted to the control room through the control cabinet. These DCS control cabinets are the core of such complex control systems.

Suppliers responsible for implementing conveyor distributed control system solutions face the following challenges:

1. Thousands of sensors and field devices use 2-wire, 3-wire and 4-wire wiring configurations and need to be connected to I/O modules. Any surges in these signals can damage expensive I/O modules, so they need fuses for protection. Because these signals run near the power cables on site, they also need to prevent electromagnetic interference, which is achieved by providing grounding for the shielding wires of these cables;

2. In order to better control multiple belts, they need to quickly switch various field devices, which require high-frequency solid-state relays with electrical isolation functions for increased safety;

3. bi metal cable lug needs to be installed in a compact cabinet, which is located in an extremely harsh mining environment with extremely harsh environment of mine dust pollution and mechanical vibration;