SHD-GC stands for "Shielded Heavy-Duty Ground Check." It is a type of cable primarily used in mining applications and other harsh environments. Here's a breakdown of its features and uses:

Features:

1. Shielding: SHD-GC cables are shielded to protect against electromagnetic interference (EMI).
2. Heavy-duty: These cables are designed to withstand harsh conditions, such as those in mining operations. They are robust and durable, capable of handling mechanical stress, abrasion, and exposure to chemicals and moisture.
3. Ground Check (GC): The cable includes a ground check conductor that continuously monitors the integrity of the ground connection. This is crucial in mining applications to ensure safety by detecting any break in the grounding circuit.
4. Voltage:  Different types of SHD-GC cable are rated at either 2kV or 5kV.
5. Temperature rating: -40°C to +90°C.

Construction:

• Conductors: Made of copper.
• Insulation: Typically uses ethylene propylene rubber (EPR) or similar materials that provide high dielectric strength and flexibility.
• Shielding: Includes either a single or double layer of shielding, often made from materials like tinned copper braid or aluminium foil.
• Jacket: The outer jacket is made from tough materials like chlorinated polyethene (CPE) or polyurethane, offering resistance to oil, chemicals, and extreme temperatures.

Uses:

• Mining operations: SHD-GC cables are extensively used to supply power to mining equipment, such as drills, shovels, and draglines.
• Tunnelling projects: Suitable for use in tunnels with robust and reliable power cables.
• Industrial applications: Can also be used in other heavy-duty industrial applications where high performance and durability are required.

What is the difference between SHD-GC and G-GC?

The primary difference between SHD-GC (Shielded Heavy-Duty Ground Check) and G-GC (Grounded Ground Check) cables is:

• SHD-GC cables include shielding for protection against EMI, while G-GC cables generally do not.
• SHD-GC cables are designed for extremely harsh conditions, making them more suitable for heavy-duty applications than G-GC cables.
• SHD-GC is preferred in mining and other very harsh environments, whereas G-GC is used in less severe industrial settings.

SHD-GC Cable Applications

SHD-GC (Shielded Heavy-Duty Ground Check) cables are designed for specific applications that require high durability, safety, and performance in harsh environments. Here are some key applications for SHD-GC cables:

1. Mining operations

• Power supply for mining equipment: SHD-GC cables are extensively used to supply power to heavy mining machinery, such as drills, shovels, loaders, draglines, and conveyor systems.
• Underground mining: Ideal for use in underground mining operations where robust and reliable power transmission is critical.
• Surface mining: Used in surface mining operations where equipment is exposed to harsh weather conditions and mechanical stress.

• Tunnel Boring Machines (TBMs): SHD-GC cables provide power to TBMs and other tunnelling equipment, ensuring continuous operation and safety.
• Ventilation and lighting systems: These cables also power ventilation systems, lighting, and other essential services within tunnels.

• Heavy industrial machinery: Suitable for powering heavy machinery and equipment operating in harsh conditions.
• Construction sites: These are used in large construction projects where equipment needs reliable power and is subject to mechanical stress and environmental exposure.

• Portable generators and equipment: SHD-GC cables can be used with portable generators and power systems in remote or rugged locations.
• Temporary power distribution: Ideal for setting up temporary power distribution networks in outdoor or challenging environments.

• Offshore drilling rigs: Provides power to offshore drilling rigs and associated equipment.
• Shipyards: These are used in shipyards to power heavy equipment and machinery.

• Utilities: Used in utility projects requiring durable and reliable power transmission.
• Infrastructure development: Suitable for infrastructure projects that require robust power cables to handle high mechanical stress and harsh environmental conditions.

• Wind and solar farms: SHD-GC cables can connect and distribute power from wind turbines and solar panels in renewable energy projects.
• Hydropower plants: Suitable for hydropower plants where cables are exposed to moisture and other environmental factors.

SHD-GC cable is available at NNC.