TYPE 240-LED: AS/NZS 1802 Certified Self-Powered LED Illuminated Power Supply Cable for Underground Coal Mining — Cu/Polyester Braid Screen for Superior Earth-Fault & EMC Performance, Braid-Compensated FC-EMH™ Induction, FC-TPU™ P-Series Static Deployment Sheath (1.1 kV – 11 kV | Machinery, Longwalls, Pumps, VSD Drives)
Comprehensive professional guide to the TYPE 240-LED — an AS/NZS 1802:2003 certified power supply cable for underground coal mining with integrated self-powered LED illumination and composite copper/polyester braid insulation screening. In FeiChun’s AS/NZS 1802 illuminated cable range, the TYPE 240-LED fills a specific and important niche: power supply applications where earth-fault current capacity and electromagnetic compatibility (EMC) are critical requirements. Where the TYPE 241-LED (flagship) uses a semi-conductive elastomeric screen for maximum FC-EMH™ induction efficiency, the TYPE 240-LED uses a composite copper/polyester braid screen that delivers superior earth-fault current-carrying capacity and better EMC shielding — essential for feeding longwall variable-speed drives (VSDs), AFC drives with sensitive PLC control systems, and any underground coal equipment where electromagnetic interference could compromise safety-critical control electronics. FeiChun’s engineering team has developed a braid-compensated FC-EMH™ coil geometry specifically for the Type 240 construction, overcoming the 25–30% magnetic-field attenuation caused by the copper braid’s eddy-current shielding to deliver reliable LED illumination at all normal operating loads. The proprietary FC-TPU™ P-Series sheath (Formula FC-2026-TPU-P4) is optimised for the semi-permanent static deployment typical of power supply cables — resisting flat-spotting, creep, and long-term degradation during prolonged installation along gate roads. This article covers cable construction, the braid screen vs elastomeric screen trade-off, braid-compensated energy harvesting, four-layer surge protection, complete dimensional and electrical data across all four voltage classes (1.1–11 kV, 33 part numbers), standards compliance, application scenarios, product selection against the TYPE 241-LED, and direct factory procurement.
Summary: Technical guide to the TYPE 240-LED — AS/NZS 1802:2003 certified LED illuminated power supply cable. Composite Cu/polyester braid screen for superior earth-fault current capacity and EMC shielding. Braid-compensated FC-EMH™ (≥ 3.3 kV) / FC-CVD™ (1.1 kV). FC-TPU™ P-Series power supply grade sheath — static deployment optimised, resists flat-spotting and creep. 1.1–11 kV. 33 part numbers. Machinery, longwalls, pumps, VSD drives. Ex ia IIC methane-safe (AS/NZS 60079.11 / AS/NZS 3808). Plug-and-play. QLD CMSH Act & NSW WHS (Mines) Reg compliant. FeiChun — direct factory manufacturer.
💡 When Earth-Fault and EMC Performance Matter More Than Induction Efficiency
Not every underground coal cable needs to be the most efficient at harvesting electromagnetic energy. Sometimes, what you need from your cable’s core screening is something else entirely — and in the power supply space, that “something else” is earth-fault current capacity and electromagnetic compatibility.
If you’ve been following FeiChun’s AS/NZS 1802 illuminated cable range, you’ll know the TYPE 241-LED (the flagship) uses a semi-conductive elastomeric screen that’s magnetically transparent — brilliant for FC-EMH™ induction efficiency, but the elastomeric screen has inherently lower earth-fault current-carrying capacity than a metallic screen. For continuous miner trailing cables, that trade-off makes sense — the CM’s load profile benefits enormously from the extra induction efficiency, and the earth-fault requirements are comfortably met by the elastomeric screen.
But power supply cables are a different beast. Think about what they’re feeding: longwall VSD (variable-speed drive) systems that use high-frequency PWM switching to control AFC drives and shearer motors. PLC control systems that are sensitive to electromagnetic interference. Pump stations with VSD-controlled dewatering pumps. Mobile substations distributing power to sensitive downstream equipment. In these applications, two things matter above all else from the cable screen: how much earth-fault current it can carry before the protection relay trips the circuit, and how effectively it shields the electromagnetic noise generated by VSD switching from interfering with adjacent control and communication cables.
The composite copper/polyester braid screen in the TYPE 240-LED delivers both. The copper braid has substantially higher earth-fault current-carrying capacity than an elastomeric screen — it can handle the fault current flowing between a faulted phase and earth for the full relay operating time without overheating or degrading. And the metallic braid provides effective EMC shielding, containing the electromagnetic emissions from VSD-fed cables and preventing them from coupling into adjacent pilot, communication, and PLC cables in the same gate road.
The trade-off? The copper braid partially attenuates the alternating magnetic field that FeiChun’s FC-EMH™ system uses to harvest energy for the LEDs. Eddy currents induced in the copper braid by the phase conductors’ magnetic field partially shield and redirect that field, reducing the flux available to the induction pickup coil. FeiChun quantifies this as approximately 25–30% attenuation. That’s a significant engineering challenge — but FeiChun has solved it with a braid-compensated coil geometry that delivers reliable LED illumination despite the metallic screen. More on that in Section 4.
If you’re a mine electrician or electrical engineer speccing cable for an underground coal operation, here’s the short version: the Type 240 and Type 241 are functionally identical cables except for the core screen. The 240 has a copper/polyester braid screen (better earth-fault, better EMC, but attenuates the magnetic field for LED induction). The 241 has a semi-conductive elastomeric screen (magnetically transparent for best LED induction efficiency, but lower earth-fault capacity). Both are AS/NZS 1802 certified. Both now come in LED-illuminated versions. Pick the one that matches your site’s earth-fault and EMC requirements.
Cables used in underground coal mines in Queensland and New South Wales must be certified to AS/NZS 1802:2003. Mandated by the QLD Coal Mining Safety and Health Act 1999 and the NSW Work Health and Safety (Mines) Regulation 2014. Using a general-mining cable certified only to AS/NZS 2802:2000 is a regulatory non-compliance. The TYPE 240-LED holds full AS/NZS 1802:2003 certification — all construction, flame-propagation, earth-fault, and pilot-circuit requirements satisfied.
🔧 TYPE 240-LED Cable Construction: Layer-by-Layer Breakdown — The Braid Screen Difference
1. Conductors: Annealed tinned copper, flexible Class 5 stranding per AS/NZS 1125. Available from 6 mm² (1.1 kV) through to 150 mm² (6.6 kV) and 95 mm² (11 kV). Tinning provides corrosion protection in the wet underground coal environment.
2. Insulation: Ethylene Propylene Rubber (EPR) per AS/NZS 1802:2003, Cl. 4.4. The gold standard for underground coal — superior moisture-treeing resistance and flexibility.
3. Core Screening — Composite Cu/Polyester Braid: This is the defining feature of the TYPE 240-LED. A composite copper/polyester braid insulation screen over each phase core, providing superior earth-fault current capacity (the copper braid can carry fault current without overheating for the full relay operating time) and superior EMC shielding (the metallic braid contains VSD-generated electromagnetic emissions). This is the same screen construction used in the standard Type 240 — proven across decades of underground coal power supply service. The trade-off is partial magnetic-field attenuation for the FC-EMH™ system, which FeiChun compensates with a specifically tuned coil geometry.
4. Pilot Cores: EPR insulated interstitial pilot conductors. Pilot-circuit continuity monitoring is mandatory under AS/NZS 1802 — any break triggers immediate cable disconnection.
5. Cradle: Semi-conductive elastomeric cradle. Maintains cable geometry and provides the bedding surface.
6. Energy Harvesting Module: FeiChun® FC-CVD™ (1.1 kV) or FC-EMH™ (≥ 3.3 kV). The FC-EMH™ module uses braid-compensated coil geometry with higher turn count and optimised winding pitch to overcome the copper braid’s 25–30% magnetic-field attenuation.
7. LED Strip: Warning red (620–630 nm), silicone encapsulated, full-length illumination providing 360° visibility through the translucent outer sheath.
8. FC-ASB™ Aramid Stress-Relief Braid: FeiChun® woven aramid (Kevlar) braid surrounding the LED FPC circuits. Mechanical stress isolation for the LED circuit.
9. Outer Sheath: Heavy duty translucent FR-TPU — FeiChun® FC-TPU™ P-Series, Power Supply Grade (Formula FC-2026-TPU-P4). Specifically developed for the semi-permanent static deployment typical of power supply cables. Resists flat-spotting, creep, and long-term degradation. 3–5× abrasion resistance vs conventional mining-grade elastomer. Halogen-free, flame-retardant, self-extinguishing.
📊 TYPE 240-LED vs TYPE 241-LED: Braid Screen vs Elastomeric Screen — The Engineering Trade-Off
This is the most important engineering decision when selecting between the TYPE 240-LED and the TYPE 241-LED. Both cables are AS/NZS 1802:2003 certified. Both have self-powered LED illumination. Both are plug-and-play drop-in replacements for their standard (non-LED) equivalents. The difference is entirely in the core screen — and that difference has real-world consequences for earth-fault performance, EMC, and LED induction efficiency.
| Property | TYPE 240-LED — Cu/Polyester Braid | TYPE 241-LED — SC Elastomer |
|---|---|---|
| Earth-Fault Current Capacity | Superior. Copper braid carries fault current for full relay operating time without overheating. | Standard. SC elastomer meets AS/NZS 1802 requirements but has lower current-carrying capacity than metallic screen. |
| EMC Shielding | Superior. Metallic braid contains VSD/PWM electromagnetic emissions. Reduces coupling into adjacent control and comm cables. | Basic. SC elastomer provides electrostatic screening but limited EMI shielding. |
| FC-EMH™ Induction Efficiency | Reduced ~25–30% by copper braid eddy-current shielding. Compensated by FeiChun’s braid-tuned coil geometry. | Maximum. Magnetically transparent — 15–20% higher coupling vs braid-screened cables. |
| LED Performance at Low Load | Reliable at normal operating loads. Braid-compensated coil geometry ensures adequate energy harvesting. | Superior at very low loads (CM idle, shearer repositioning) due to higher induction efficiency. |
| Voltage Range | 1.1–11 kV (4 voltage classes, 33 part numbers) | 1.1–22 kV (5 voltage classes, 45 part numbers) |
| Sheath | FC-TPU™ P-Series (static deployment — resists flat-spotting & creep) | FC-TPU™ C-Series (crushing resistance for CM/longwall) |
| Best For | Power supply to longwall VSDs, AFC drives, PLC systems, pumps, sensitive equipment | CM trailing cables, longwall shearer feeders, general-purpose flexible feeders, mobile substations (22 kV) |
Feeding longwall VSD drives, AFC drives with PLC control, or sensitive equipment? → TYPE 240-LED. You need the braid screen’s earth-fault capacity and EMC shielding.
Trailing behind a continuous miner or feeding a longwall shearer? → TYPE 241-LED. You need the magnetically transparent screen’s superior induction efficiency for reliable LED at variable loads.
Need 22 kV for a mobile substation? → TYPE 241-LED. The 240-LED tops out at 11 kV.
Not sure which screen type your site requires? → Check your mine’s electrical engineering standard (ES) or talk to your electrical engineering manager (EEM). Many Australian underground coal mines specify either Type 240 or Type 241 as a site standard — use the LED version of whichever type your mine already runs.
⚡ Braid-Compensated FC-EMH™: How FeiChun Gets Reliable LED Through a Copper Braid Screen
The composite copper/polyester braid screen is the TYPE 240-LED’s greatest asset for earth-fault and EMC performance — but it’s also the biggest engineering challenge for the LED illumination system. The alternating magnetic field generated by the phase conductors induces eddy currents in the copper braid. These eddy currents create their own opposing magnetic field, partially cancelling the original field and reducing the magnetic flux available to the FC-EMH™ pickup coil. FeiChun quantifies this as approximately 25–30% magnetic-field attenuation — a significant reduction that would cause marginal or unreliable LED performance if the standard FC-EMH™ coil geometry (as used in the TYPE 241-LED) were used without modification.
FeiChun’s answer is a braid-compensated coil geometry. The FC-EMH™ pickup coil for the TYPE 240-LED uses a higher turn count and an optimised winding pitch compared to the standard coil used in the TYPE 241-LED. The higher turn count increases the coil’s sensitivity, compensating for the reduced flux. The optimised winding pitch positions the coil in the interstices between the braid-screened phase cores where the residual magnetic field is strongest — essentially finding the “sweet spots” in the cable geometry where the braid’s shielding effect is least pronounced.
| Voltage Class | Harvesting | Operating Principle | Braid Compensation |
|---|---|---|---|
| 1.1 kV | FC-CVD™ | Capacitive voltage divider. High-impedance tap. Onboard rectifier + LDO to 12 V DC. | N/A — capacitive method not affected by braid magnetic shielding. |
| 3.3 kV | FC-EMH™ | Electromagnetic induction with braid-compensated higher turn-count coil. | Compensates ~25–30% attenuation from copper braid eddy-current shielding. Optimised winding pitch for interstitial field maxima. |
| 6.6 kV | FC-EMH™ | Stronger source field at higher voltage. Braid-compensated coil with comfortable harvesting margin. | Attenuation proportionally less significant at stronger field strengths. LED performance robust. |
| 11 kV | FC-EMH™ | Maximum source field. Highest harvesting headroom despite braid attenuation. | Ample energy margin at 11 kV. Reliable LED under all load conditions including light-load standby. |
Both harvesting modes satisfy AS/NZS 60079.11 (intrinsic safety) and AS/NZS 3808 (Group I methane). The FC-EMH™ provides galvanic isolation — zero electrical connection between HV conductors and LED circuit. The FC-CVD™ uses capacitive limiting — inherent high-impedance restricts energy below IS thresholds.
Note: The FC-EMH™ P-variant used in the TYPE 240-LED is optimised for the steadier load profile typical of power supply cables. Power supply cables generally feed equipment with more stable loads than CM trailing cables — longwall pumps and AFC drives run near-constant current, and even VSD-controlled equipment draws relatively steady RMS current. The P-variant’s energy-storage capacitor bank is sized accordingly.
🔴 FC-TPU™ P-Series Power Supply Grade Sheath: Built to Sit Still for Months and Still Glow
Power supply cables live a different life to trailing cables. A continuous miner trailing cable gets trailed, reeled, crushed, and dragged across broken stone every shift. But a power supply cable feeding a longwall VSD panel or a gate-road pump station? That cable gets installed along the rib or floor of a gate road and it stays there — for weeks, months, or even the entire life of a longwall panel. It’s semi-permanent infrastructure. It sits in the same position, bearing its own weight on the same contact points, day after day, exposed to stone dust, mine water, and whatever drips off the roof.
For a standard cable sheath, this static deployment isn’t particularly challenging. But for a translucent LED sheath, static deployment introduces specific degradation mechanisms that don’t affect cables in dynamic service: flat-spotting (the sheath permanently deforms where it rests on the floor, potentially pinching the LED strip), creep (the sheath slowly changes dimension under sustained static load, potentially affecting the LED annular channel), and long-term optical degradation (prolonged exposure to stone dust, mine water, and UV from cap lamps can cloud the sheath and reduce light transmission over time).
FeiChun’s FC-TPU™ P-Series (Power Supply Grade, Formula FC-2026-TPU-P4) is specifically formulated to resist all three. The P4 compound has enhanced creep resistance compared to the C1 (CM/longwall) and S2 (shuttle-car) formulations, maintaining its dimensional stability under prolonged static loading. The surface chemistry resists stone-dust adhesion and mine-water mineral deposits that could cloud the sheath over time. And the compound maintains its optical clarity — the 620–630 nm warning-red LED glow remains visible after years of static gate-road service.
| Property | Performance |
|---|---|
| Flat-Spot Resistance | Enhanced compressive recovery — sheath returns to round cross-section after repositioning, even after weeks of static deployment. |
| Creep Resistance | Minimal dimensional change under prolonged static load. LED annular channel maintained over full installation life. |
| Optical Durability | 620–630 nm light transmission maintained after years of gate-road service. Surface resists stone-dust adhesion and mineral-deposit clouding. |
| Abrasion Resistance | 3–5× conventional mining-grade elastomer. Handles installation handling, repositioning, and incidental contact. |
| Flame Retardancy | AS/NZS 1802:2003 Cl. 4.12. Halogen-free; self-extinguishing; no toxic or corrosive fumes. |
FeiChun’s four FC-TPU™ translucent sheath compounds are each optimised for a specific duty: S2 (shuttle-car grade — TYPE 275-LED) maximises flex-cycle fatigue life. A3 (armour grade — TYPE 260-LED) resists point loads from steel armour wire tips. C1 (CM/longwall grade — TYPE 241-LED) handles crushing from continuous miners and shuttle cars. P4 (power supply grade — TYPE 240-LED) resists flat-spotting and creep during semi-permanent static installation. Using the right compound for the right application is critical — a C1 CM sheath would develop flat spots during months of static gate-road deployment, and a P4 power supply sheath isn’t formulated for the repeated crushing loads a CM trailing cable endures.
🛡️ FC-SPM™ Four-Layer Surge Protection for Power Supply Switching Transients
| Layer | Component | Function |
|---|---|---|
| Layer 1 | Magnetic Saturation | Caps induced energy at source (FC-EMH™ variants). Prevents excessive energy delivery during high-current fault events. |
| Layer 2 | TVS Diodes | Picosecond clamping of switching transients. Handles VSD/PWM switching transients and circuit-breaker operations. |
| Layer 3 | Zener / LDO Regulation | Locks LED power rail to 12/24 V DC. Clean, regulated supply regardless of upstream switching activity. |
| Layer 4 | PTC Resettable Fuses | Auto-reset overcurrent protection. Zero maintenance for full cable service life — critical for cables installed semi-permanently in gate roads where access for maintenance is impractical. |
📐 Dimensional & Electrical Data: All 33 Part Numbers — 1.1 kV, 3.3 kV, 6.6 kV, 11 kV
The TYPE 240-LED covers four voltage classes with 33 part numbers. Part numbers use the MCU- prefix (underground coal series). Weights are approximately 10–14% above standard Type 240 equivalents. The composite Cu/polyester braid screen partially attenuates the magnetic field; FeiChun’s FC-EMH™ coil geometry is tuned to compensate, maintaining reliable LED illumination.
240-LED.1 — 1.1 kV (FC-CVD™ Energy Harvesting)
| Part No. | Cond. mm² | Cond. Dia. mm | Screen mm² | Over Screen mm | Pilot mm² | LED Power | Sheath mm | O.D. mm | Wt. kg/100 m |
|---|---|---|---|---|---|---|---|---|---|
| MCU-240L.1-006 | 6 | 9.6 | 7.2 | 10.0 | 1.06 | FC-CVD™ | 4.2 | 38.5 | 162 |
| MCU-240L.1-010 | 10 | 10.5 | 8.6 | 10.9 | 1.70 | FC-CVD™ | 4.2 | 40.5 | 191 |
| MCU-240L.1-016 | 16 | 11.8 | 9.6 | 12.2 | 2.76 | FC-CVD™ | 4.4 | 44.0 | 237 |
| MCU-240L.1-025 | 25 | 13.1 | 11.3 | 13.5 | 4.45 | FC-CVD™ | 4.7 | 47.5 | 302 |
| MCU-240L.1-035 | 35 | 14.3 | 12.4 | 14.7 | 6.15 | FC-CVD™ | 5.0 | 51.2 | 368 |
| MCU-240L.1-050 | 50 | 16.0 | 14.4 | 16.4 | 8.06 | FC-CVD™ | 5.4 | 56.0 | 465 |
| MCU-240L.1-070 | 70 | 17.9 | 16.5 | 18.3 | 12.69 | FC-CVD™ | 5.8 | 61.5 | 592 |
| MCU-240L.1-095 | 95 | 20.1 | 18.2 | 20.5 | 12.69 | FC-CVD™ | 6.4 | 68.0 | 738 |
| MCU-240L.1-120 | 120 | 22.0 | 20.3 | 22.3 | 13.75 | FC-CVD™ | 6.8 | 73.5 | 880 |
| MCU-240L.1-150 | 150 | 24.1 | 22.3 | 24.4 | 16.92 | FC-CVD™ | 7.3 | 79.5 | 1054 |
240-LED.3 — 3.3 kV (FC-EMH™ Braid-Compensated Induction)
| Part No. | Cond. mm² | Cond. Dia. mm | Screen mm² | Over Screen mm | Pilot mm² | LED Power | Sheath mm | O.D. mm | Wt. kg/100 m |
|---|---|---|---|---|---|---|---|---|---|
| MCU-240L.3-016 | 16 | 14.2 | 13.4 | 16.3 | 2.76 | FC-EMH™ | 5.7 | 61.0 | 394 |
| MCU-240L.3-025 | 25 | 15.5 | 14.8 | 17.6 | 4.45 | FC-EMH™ | 6.0 | 65.0 | 470 |
| MCU-240L.3-035 | 35 | 16.7 | 16.1 | 18.8 | 6.15 | FC-EMH™ | 6.3 | 68.5 | 546 |
| MCU-240L.3-050 | 50 | 18.3 | 17.5 | 20.3 | 8.06 | FC-EMH™ | 6.7 | 73.0 | 652 |
| MCU-240L.3-070 | 70 | 19.9 | 19.6 | 22.0 | 12.69 | FC-EMH™ | 7.0 | 77.5 | 783 |
| MCU-240L.3-095 | 95 | 21.7 | 20.6 | 23.8 | 12.69 | FC-EMH™ | 7.5 | 83.0 | 928 |
| MCU-240L.3-120 | 120 | 23.3 | 27.2 | 25.8 | 13.75 | FC-EMH™ | 7.8 | 88.5 | 1089 |
| MCU-240L.3-150 | 150 | 25.0 | 39.6 | 27.5 | 16.92 | FC-EMH™ | 8.2 | 93.5 | 1292 |
240-LED.6 — 6.6 kV (FC-EMH™ Braid-Compensated Induction)
| Part No. | Cond. mm² | Cond. Dia. mm | Screen mm² | Over Screen mm | Pilot mm² | LED Power | Sheath mm | O.D. mm | Wt. kg/100 m |
|---|---|---|---|---|---|---|---|---|---|
| MCU-240L.6-016 | 16 | 18.2 | 16.3 | 20.3 | 2.76 | FC-EMH™ | 6.8 | 73.0 | 551 |
| MCU-240L.6-025 | 25 | 19.5 | 18.3 | 21.6 | 4.45 | FC-EMH™ | 7.1 | 77.0 | 636 |
| MCU-240L.6-035 | 35 | 20.7 | 20.3 | 22.8 | 6.15 | FC-EMH™ | 7.4 | 80.5 | 726 |
| MCU-240L.6-050 | 50 | 22.3 | 20.3 | 24.3 | 8.06 | FC-EMH™ | 7.7 | 85.0 | 833 |
| MCU-240L.6-070 | 70 | 23.9 | 22.6 | 26.0 | 12.69 | FC-EMH™ | 8.1 | 89.8 | 981 |
| MCU-240L.6-095 | 95 | 25.7 | 29.6 | 28.2 | 12.69 | FC-EMH™ | 8.5 | 96.0 | 1158 |
| MCU-240L.6-120 | 120 | 27.3 | 32.3 | 29.8 | 13.75 | FC-EMH™ | 8.9 | 100.5 | 1318 |
| MCU-240L.6-150 | 150 | 29.0 | 47.3 | 32.4 | 16.92 | FC-EMH™ | 9.3 | 107.5 | 1552 |
240-LED.11 — 11 kV (FC-EMH™ Braid-Compensated Induction)
| Part No. | Cond. mm² | Cond. Dia. mm | Screen mm² | Over Screen mm | Pilot mm² | LED Power | Sheath mm | O.D. mm | Wt. kg/100 m |
|---|---|---|---|---|---|---|---|---|---|
| MCU-240L.11-025 | 25 | 24.7 | 24.3 | 26.8 | 4.45 | FC-EMH™ | 8.5 | 92.5 | 905 |
| MCU-240L.11-035 | 35 | 25.9 | 30.3 | 28.4 | 6.15 | FC-EMH™ | 8.8 | 97.0 | 1021 |
| MCU-240L.11-050 | 50 | 27.5 | 32.3 | 30.0 | 8.06 | FC-EMH™ | 9.1 | 101.5 | 1148 |
| MCU-240L.11-070 | 70 | 29.1 | 34.3 | 31.6 | 12.69 | FC-EMH™ | 9.5 | 106.0 | 1313 |
| MCU-240L.11-095 | 95 | 30.9 | 48.3 | 34.3 | 12.69 | FC-EMH™ | 10.0 | 113.5 | 1541 |
Note: Nominal dimensions ± manufacturing tolerances. MCU- prefix denotes underground coal series. Weights approx. 10–14% above standard Type 240. LED Power: CVD = FC-CVD™ capacitive divider (1.1 kV); EMH = FC-EMH™ braid-compensated electromagnetic induction (≥ 3.3 kV). The composite Cu/polyester braid screen partially attenuates the magnetic field; FeiChun’s FC-EMH™ coil geometry is tuned to compensate.
📋 AS/NZS 1802:2003 & Additional Standards Compliance Matrix
| Standard | Title / Scope | Applicability to TYPE 240-LED |
|---|---|---|
| AS/NZS 1802:2003 | Electric cables — Underground coal mining | PRIMARY. All construction, flame-propagation, earth-fault, pilot-circuit requirements. |
| AS/NZS 60079.11 | Explosive atmospheres — Intrinsic safety ‘i’ | LED circuit: Ex ia IIC. FC-EMH™ galvanically isolated / FC-CVD™ capacitively limited. |
| AS/NZS 3808:2000 | Electrical equipment for coal mines — Intrinsic safety | Group I (methane) IS. Mandatory for underground coal. |
| IEC 60502-1/2 | Power cables with extruded insulation | EPR insulation, braid screen per voltage class to 11 kV. |
| AS/NZS 1125 | Conductors in insulated electric cables | Conductor material, stranding, resistivity. |
| QLD CMSH Act 1999 | Coal Mining Safety and Health Act 1999 (Queensland) | Compliant with QLD state legislation requiring AS/NZS 1802-certified cables for underground coal. |
| NSW WHS (Mines) Reg 2014 | Work Health and Safety (Mines) Regulation 2014 (New South Wales) | Compliant with NSW state legislation requiring AS/NZS 1802-certified cables for underground coal. |
🏆 Nine Key Operational Advantages: LED Power Supply Cable for Underground Coal
1. Superior Earth-Fault & EMC Performance: The composite copper/polyester braid screen delivers higher earth-fault current capacity and better electromagnetic compatibility than semi-conductive elastomeric screens. If you’re feeding longwall VSD drives or any equipment with sensitive PLC control systems, this is the screen you want. The braid contains VSD-generated electromagnetic emissions and prevents them from coupling into adjacent pilot and comm cables in the gate road.
2. Braid-Compensated LED Illumination: FeiChun’s engineering team didn’t just bolt an LED system onto a Type 240 cable and hope for the best. The FC-EMH™ module uses a purpose-designed braid-compensated coil geometry that overcomes the copper braid’s 25–30% magnetic-field attenuation. Reliable LED illumination despite the metallic screen — a genuine FeiChun innovation.
3. AS/NZS 1802 Underground Coal Certified: Full compliance with AS/NZS 1802:2003 including all flame-propagation, earth-fault, and pilot-circuit requirements. QLD and NSW state regulatory compliance. No workarounds, no derogations.
4. Plug-and-Play Deployment: No external DC supplies. No gate end box modifications. No coupler changes. Direct drop-in replacement for standard Type 240. Your sparkies swap it over during a normal shift — disconnect, connect, energise, glow.
5. Power Supply Route Visibility: Continuous red glow delineates power supply cable routes along gate roads, headings, and longwall installations. Personnel visually trace energised cables without portable lighting — critical during isolation, switchboard maintenance, and emergency evacuation. A glowing red line through the gate road is a lot easier to follow than a dusty black cable in the dark.
6. Intrinsically Safe for Methane Atmospheres: Cold light. FC-EMH™ galvanically isolated / FC-CVD™ capacitively limited. AS/NZS 3808 and AS/NZS 60079.11 compliant for Group I atmospheres. Safe for the gassiest underground coal environment.
7. FC-TPU™ P-Series Static Deployment Durability: Power supply grade sheath that’s built to sit still for months and still glow. Resists flat-spotting, creep, and optical degradation during semi-permanent gate-road installation. 3–5× abrasion resistance vs conventional elastomer. Light output maintained over years of static service.
8. Maintenance-Free FC-SPM™: Four-layer surge protection handles VSD switching transients and circuit-breaker operations. PTC auto-reset. Zero maintenance for full cable service life. Once it’s in the gate road, you don’t touch it again until you pull it out.
9. Live Cable Indication & LOTO Safety: Immediate visual energisation status — glow means live, no glow means isolated. Critical for LOTO procedures around power supply switchboards, VSD panels, and pump stations where multiple supply cables converge in confined spaces. No more tracing cables with a torch to find out which one’s still got juice.
⛏️ Application Scenarios: Longwall VSDs, Pump Stations, AFC Drives & Machinery Supply
Challenge: Modern longwall installations increasingly use variable-speed drives (VSDs) to control AFC motors, shearer motors, and pump motors. VSD power supply cables carry PWM-switched waveforms that generate significant electromagnetic emissions. These emissions can couple into adjacent pilot cables, PLC communication cables, and gas monitoring cables running through the same gate road — potentially causing false readings, control system interference, or data errors in safety-critical monitoring systems. The power supply cable’s screen must contain these emissions effectively. At the same time, earth-fault protection in a methane atmosphere demands a screen with high fault-current capacity to ensure the earth-leakage relay trips within its specified operating time.
Solution: TYPE 240-LED for all longwall VSD power supply cables. The copper/polyester braid screen provides the EMC shielding needed to contain VSD-generated emissions and the earth-fault current capacity needed for reliable relay operation. The LED illumination identifies which VSD supply cables are energised — critical during longwall maintenance when multiple VSD panels may share the same gate-end area. The FC-TPU™ P-Series sheath maintains its red glow throughout the full longwall panel life without flat-spotting or optical degradation.
Challenge: Underground coal pump stations are often located in wet, low-visibility areas — sumps, low points in gate roads, and drainage collection areas. Multiple pump supply cables run from the panel distribution board to individual pump locations. These cables sit in position for weeks or months, draped along the rib or floor through standing water and stone-dust slurry. During maintenance or pump changeovers, electricians need to identify which pump cable goes where and whether it’s energised — in the dark, in water, with stone-dust coating everything.
Solution: TYPE 240-LED for all gate-road pump supply cables. Every energised pump cable glows red, clearly visible through standing water and stone dust. During pump isolation, the target cable goes dark while others remain lit — instant visual confirmation. The P-Series sheath resists the stone-dust adhesion and mineral-deposit clouding that would degrade optical clarity in other sheath compounds during prolonged wet deployment.
Challenge: Underground coal mines use a variety of fixed and semi-mobile machinery — conveyor drives, ventilation fans, bolter power packs, and auxiliary equipment — all fed by power supply cables routed through gate roads and headings. Some mines standardise on the Type 240 (braid-screened) rather than the Type 241 (elastomer-screened) as a site-wide standard because the braid screen’s earth-fault performance provides additional safety margin across all applications. These power supply cables are semi-permanent infrastructure that must remain identifiable and visible throughout their installation life.
Solution: TYPE 240-LED as the site-wide power supply cable standard. Every power supply cable on the mine glows when energised, creating a visible power distribution map throughout the gate-road system. Electricians can identify energised routes at a glance during routine patrols. During emergency situations, the illuminated cable network provides spatial orientation in the dark. And for mines that already standardise on Type 240, the LED version is a seamless upgrade — same part numbers with the MCU-240L prefix, same couplers, same gate end boxes.
❓ Frequently Asked Questions: Braid Screen, EMC, Static Deployment & Procurement
Q1: Why should I choose the TYPE 240-LED instead of the TYPE 241-LED for my longwall power supply?
If you’re feeding equipment with VSD/PWM switching — longwall AFC drives, shearer VSD panels, VSD-controlled pumps — the TYPE 240-LED’s copper/polyester braid screen is the better choice. The braid screen contains the electromagnetic emissions from VSD switching and prevents them from coupling into adjacent pilot, communication, and gas monitoring cables. It also provides higher earth-fault current capacity, ensuring your earth-leakage relay trips within its specified time. The TYPE 241-LED’s elastomeric screen has better induction efficiency for the LEDs, but it doesn’t provide the same level of EMC shielding or earth-fault performance. If your site’s electrical engineering standard specifies Type 240, use the TYPE 240-LED.
Q2: Does the braid screen cause LED reliability problems?
No. FeiChun has specifically engineered the FC-EMH™ module for the TYPE 240-LED with a braid-compensated coil geometry — higher turn count, optimised winding pitch, positioned in the interstitial field maxima between braid-screened phase cores. This compensates for the approximately 25–30% magnetic-field attenuation caused by the copper braid’s eddy-current shielding. The LED illumination is reliable at all normal operating loads. At 6.6 kV and 11 kV, the stronger source magnetic field provides ample harvesting margin despite the braid attenuation.
Q3: Can I use the TYPE 240-LED as a straight replacement for our existing standard Type 240 cables?
Dead easy. Direct drop-in replacement. No external DC supplies, no gate end box mods, no coupler changes. Disconnect, connect, energise, glow. Weight increase is 10–14% and the O.D. is slightly larger, but it fits existing cable handling gear and couplers without modification. Your sparkies won’t notice the difference during installation — but they’ll definitely notice the glow once it’s energised.
Q4: Will the P-Series sheath still glow properly after months of sitting on a gate-road floor?
That’s exactly what it’s designed for. The FC-TPU™ P4 compound resists flat-spotting (so the sheath doesn’t permanently deform and pinch the LED strip), creep (so the LED annular channel maintains its geometry), and surface degradation from stone dust and mine water. The 620–630 nm LED glow remains clearly visible after months — even years — of static gate-road deployment. FeiChun developed the P4 formulation specifically because power supply cables sit still, and sitting still introduces degradation mechanisms that don’t affect cables in dynamic service.
Q5: Our mine standardises on Type 240 for all power supply applications. Can we get the TYPE 240-LED across all voltage classes?
Absolutely. The TYPE 240-LED is available in four voltage classes — 1.1 kV, 3.3 kV, 6.6 kV, and 11 kV — with 33 part numbers covering conductor sizes from 6 mm² to 150 mm². If your mine is a Type 240 site, you can upgrade every power supply cable to LED-illuminated without changing your site standard. Same cable type, same screen construction, same part number logic (MCU-240L prefix), same couplers — just with a red glow when it’s live.
Q6: How do I get a quote for a mine-wide LED cable rollout?
Contact FeiChun’s mining division directly at [email protected] or [email protected] for project-specific pricing. If you’re planning a full-mine upgrade — TYPE 240-LED for power supply cables, TYPE 241-LED for CM/longwall trailing cables, TYPE 260-LED for armoured gate-road feeders, and TYPE 275-LED for shuttle-car reeling cables — ask for a bundled quote across all four cable types. As a direct factory manufacturer, FeiChun offers competitive pricing without distributor markups and volume discounts for multi-type orders.
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Standards & References
- AS/NZS 1802:2003, “Electric cables — Reeling and trailing — For underground coal mining,” Standards Australia / Standards New Zealand.
- AS/NZS 2802:2000, “Electric cables — Trailing and reeling — For mining and general use,” Standards Australia / Standards New Zealand.
- AS/NZS 60079.11, “Explosive atmospheres — Equipment protection by intrinsic safety ‘i’,” Standards Australia / Standards New Zealand.
- AS/NZS 3808:2000, “Electrical equipment for coal mines — Intrinsic safety,” Standards Australia / Standards New Zealand.
- IEC 60502-1, “Power cables with extruded insulation — Cables for rated voltages from 1 kV up to and including 3 kV,” International Electrotechnical Commission, Geneva.
- IEC 60502-2, “Power cables with extruded insulation — Cables for rated voltages from 6 kV up to and including 30 kV,” International Electrotechnical Commission, Geneva.
- AS/NZS 1125, “Conductors in insulated electric cables and flexible cords,” Standards Australia / Standards New Zealand.
- Coal Mining Safety and Health Act 1999 (QLD), Queensland Parliamentary Counsel.
- Work Health and Safety (Mines and Petroleum Sites) Regulation 2014 (NSW), NSW Government.
- Anhui Feichun Special Cable Co., Ltd., “TYPE 240-LED Self-Powered LED Illuminated Power Supply Cable — Technical Data Sheet FC-TDS-240LED-2026-BDEF8184, Rev. A1, Section 1D,” Hefei, March 2026.
