Type YnStY-G żo 300/500 V Mining control cable for use in open pit and borehole mines outside explosion hazard zones and in underground non-methane mines
They are intended as control cables for mobile connections without tensile loads in fixed or mobile devices and machines used in
underground mine workings, designed for operation in an environment with relative air humidity of up to 100% and at temperatures from -150
C to +550 C,
Resistant to flame spread.
They are not intended for outdoor use.
Restrictions: the voltage of the control system in which the cable is to be installed must not exceed 220V; the cable must not transfer any axial forces;
The cables must not be used in power supply installations.
Type ZW-(QG)GNOTKSdD 4-8 J Fibers Mining Cable – a fully dielectric, reinforced fiber optic cable specifically engineered for dynamic mining applications.
Designed for mounting on moving parts of mining machines and combines—where repeated bending, winding, and unwinding are common—this cable reliably transmits digital and analog signals across the entire optical band.
Detailed Construction & Materials
Optical Fibers:
Compliant with ITU-T G.652D (or per attached fiber specifications).
Color-coded according to IEC 60304 (red, green, blue, white, violet, orange, grey, yellow) for easy identification.
Loose Tube Structure:
Features a tight-buffered tube with a dual-layer design: an inner layer made of acryl and an outer layer of polyamide (approximately 0.9 mm thick).
Tube identification follows natural colors or IEC standards.
Optical Module Reinforcement:
Reinforced with dielectric aramid yarn to protect the fibers.
Module coatings differentiate fiber types:
ITU-T G.652D fibers – yellow
ITU-T G.651 (G62.5) – green
ITU-T G.651 (G50) – orange
ITU-T G.655 – brown
LSOH (low-smoke zero-halogen) material is used with a thickness of 0.6 mm.
Dielectric Armour:
Equipped with FRP (Fiber Reinforced Polymer) rods (1.0 mm in diameter) to provide mechanical protection without compromising dielectric properties.
Inner Jacket:
Made from thermoplastic rubber with a nominal thickness of 1.0 mm, offering primary protection.
Additional Reinforcement:
Further strengthened with dielectric aramid yarn to withstand repeated bending.
Dual-Layer Outer Jacket:
Inner Layer: Thermoplastic rubber with a minimum thickness of 2.5 mm (nominally 3.0 mm).
Outer Layer: Polyurethane with a minimum thickness of 1.2 mm (nominally 1.5 mm).
This robust, high oxygen-index design provides excellent flame retardancy, UV resistance, and protection against environmental hazards.
Optical Performance:
Attenuation is ≤ 0.5 dB/km at 1310 nm and ≤ 0.35 dB/km at 1550 nm for G.652D fibers, ensuring high-quality signal transmission over long distances.
Key Characteristics
Fully Dielectric & EMI Resistant:
The cable’s construction is entirely dielectric, eliminating conductive parts and ensuring high resistance to electromagnetic interference.Enhanced Mechanical Durability:
The combination of a dielectric central reinforcement, optional aramid yarn reinforcement, and a robust outer jacket delivers high tensile strength and exceptional resistance to repeated bending, winding, and unwinding.Optimized for Dynamic Applications:
Ideal for installation on moving parts of mining machines and combines, where flexibility and durability are critical.
Applications
Dynamic Mining Installations:
Designed for mounting on moving components in mining machines, ensuring reliable operation even under continuous mechanical stress.Opto-Telecommunications Systems:
Used for connecting devices in digital and analog networks across the entire optical band.Versatile Deployment:
Suitable for both surface and underground mine workings, with installations that can be suspended horizontally or vertically.
Environmental & Temperature Resistance
Temperature Ranges:
Transport/Storage: -30°C to +70°C
Installation: -5°C to +60°C
Operation: -20°C to +60°C
(Please verify with manufacturer specifications if different.)
High UV and Corrosion Resistance:
The cable’s materials and outer jacket design ensure long-term durability in harsh outdoor mining environments.
Frequently Asked Questions (FAQ)
Q: What is the Type ZW-(QG)GNOTKSdD cable?
A: It is a reinforced, fully dielectric fiber optic cable designed for mining applications, especially on moving parts of machines and combines.
Q: What type of optical fibers does it use?
A: It uses ITU-T G.652D compliant fibers (or as specified), ensuring high-quality digital and analog signal transmission.
Q: How are the fibers identified within the cable?
A: Fibers are color-coded according to IEC 60304 (red, green, blue, white, violet, orange, grey, yellow) for easy identification.
Q: What is the purpose of the tight-buffered loose tube structure?
A: It protects the fibers from mechanical stress while providing a controlled environment for signal transmission.
Q: How are the tubes constructed?
A: Each tube has a dual-layer design with an inner acryl layer and an outer polyamide layer (≈0.9 mm thick), ensuring durability and flexibility.
Q: How are the tubes identified?
A: The first tube is red, the second blue, and additional tubes are natural; any inserts are marked in black.
Q: What reinforcement element is used at the center of the cable?
A: A dielectric FRP (Fiber Reinforced Polymer) rod, typically 1.0 mm in diameter, provides central mechanical support.
Q: What additional reinforcement is incorporated?
A: Dielectric aramid yarn is used to reinforce the cable module, increasing resistance to repeated bending and tensile stress.
Q: How does the cable protect against moisture?
A: A swelling (expanding) tape is applied as a moisture barrier to prevent water ingress into the cable.
Q: What material is used for the inner jacket?
A: The inner jacket is made of thermoplastic rubber in black, offering primary protection with a nominal thickness of about 1.0 mm.
Q: What type of armouring is used?
A: The cable is armored with painted steel tape, providing robust mechanical protection while maintaining full dielectric properties.
Q: Describe the outer jacket construction.
A: The outer jacket is a dual-layer system: an inner layer of thermoplastic rubber (nominal 3.0 mm, min. 2.5 mm) and an outer layer of polyurethane (nominal 1.5 mm, min. 1.2 mm), ensuring excellent environmental and abrasion resistance.
Q: What are the fiber attenuation specifications?
A: Attenuation is ≤ 0.5 dB/km at 1310 nm and ≤ 0.35 dB/km at 1550 nm for G.652D fibers, ensuring minimal signal loss.
Q: Why is low attenuation important in mining applications?
A: Low attenuation ensures that signals remain strong over long distances, which is critical for real-time monitoring and communication.
Q: How does the cable's fully dielectric design benefit its performance?
A: It minimizes electromagnetic interference (EMI), ensuring a clear and stable signal in explosive or noisy environments.
Q: What makes this cable suitable for mounting on moving parts?
A: Its enhanced flexibility, high tensile strength, and resistance to repeated bending and twisting make it ideal for dynamic mining applications.
Q: How does the cable handle repeated mechanical stress?
A: The combination of dielectric reinforcement, aramid yarn, and robust armouring allows it to endure continuous bending and movement without damage.
Q: Is the cable resistant to UV and corrosion?
A: Yes, the outer polyurethane jacket offers excellent UV and corrosion resistance for outdoor mining environments.
Q: Can the cable be installed both horizontally and vertically?
A: Absolutely – it is designed for flexible installation in both orientations in surface and underground mine workings.
Q: What types of signals can this cable transmit?
A: It supports the transmission of digital and analog signals across the entire optical band, making it versatile for various applications.
Q: What applications benefit from this cable?
A: It is ideal for connecting devices in opto-telecommunications systems, particularly on moving parts of mining machines and combines.
Q: How does the cable contribute to intelligent mine automation?
A: Its reliable, high-speed data transmission supports real-time monitoring, control, and communication in automated mining systems.
Q: What are the typical operating temperature ranges?
A: The cable is designed to operate from -20°C to +60°C, with installation temperatures ranging from -5°C to +60°C.
Q: What are the transport and storage temperature ranges?
A: It can be transported and stored between -30°C and +70°C.
Q: How is the cable's bending performance specified?
A: The cable features a minimum dynamic bending radius (during installation) specified by the manufacturer, ensuring it remains flexible without compromising performance.
Q: What is the significance of the dielectric armouring?
A: Dielectric armouring provides mechanical protection while maintaining electrical isolation, crucial for safe operation in explosive mining environments.
Q: Is the cable RoHS compliant?
A: Yes, it complies with RoHS standards, ensuring environmentally friendly material usage.
Q: How does the cable support high-speed communications?
A: With its low attenuation, high-quality fibers, and robust construction, the cable enables high-speed data and signal transmission for advanced mining systems.
Q: What mechanical loads can the cable withstand?
A: It is engineered to resist both longitudinal and transverse stresses, with a high tensile strength suited for dynamic mining applications.
Q: How does this cable enhance overall mine safety?
A: By providing reliable, interference-free communication and control links, it supports critical monitoring and safety systems on moving mining equipment.
Q: Can this cable be integrated into existing mining telecommunication networks?
A: Yes, its design and compliance with standard fiber optic specifications make it fully compatible with modern opto-telecommunications systems.
Q: How does the cable's construction protect the fragile optical fibers?
A: Multiple layers—including gel-filled tubes, moisture barriers, dielectric reinforcement, and armouring—safeguard the fibers against physical damage and environmental stress.
Q: What is the expected lifespan of this cable in a mining environment?
A: With proper installation and maintenance, the cable is designed for long-term use, even in harsh, dynamic conditions.
Q: How does the cable manage electromagnetic interference (EMI)?
A: Its fully dielectric structure and non-metallic materials significantly reduce EMI, ensuring clear signal transmission.
Q: What makes this cable ideal for moving parts of mining machines?
A: Its enhanced resistance to repeated bending, twisting, and dynamic movement ensures continuous performance on moving machinery and combines.
Q: How does the cable's design support both surface and underground installations?
A: Its robust, flexible construction and environmental protection features make it suitable for both surface and underground mining applications, installed horizontally or vertically.
Type ZW-(QG)GNOTKSdD 4 - 8 J fibers Mining Cable for mounted on moving parts of mining machines and combines, in places where resistance to repeated bending, winding and unwinding is required
Designed for installation on moving parts of mining machines and combines, it withstands repeated bending, winding, and unwinding while reliably transmitting both digital and analog signals across the entire optical band. Featuring robust loose-tube construction with dual-layer buffered tubes, dielectric reinforcement with aramid yarn, and painted steel tape armouring, this cable is optimized for harsh mining environments. Its low attenuation (≤ 0.5 dB/km @1310 nm and ≤ 0.35 dB/km @1550 nm), excellent EMI resistance, and flexible design make it ideal for both surface and underground installations—whether suspended horizontally or vertically. Perfect for opto-telecommunications systems in mines, this cable delivers reliable, high-speed data transmission even under continuous mechanical stress and extreme conditions.
6/30/20217 min read