FXQJ EMC Cable

What is FXQJ EMC Cable?

The FXQJ EMC 1kV cable is a low-voltage, screened and unarmoured halogen-free flame-retardant power cable constructed with Class 2 circular or shaped stranded plain copper conductors, XLPE core insulation, HFFR bedding filler, a dual copper tape and annealed copper wire screen, and a durable black HFFR outer sheath complying with HD 604.5D, HD 604 S1-5D, and Swedish standards SS 424 14 18 and SS 424 14 24. Operating at a rated voltage of 0.6/1kV, it provides reliable low-loss electrical power transmission across industrial process plants and commercial infrastructure.

Engineered primarily to counteract the detrimental effects of electromagnetic noise, the cable pairs low-dielectric cross-linked polyethylene core insulation with a low-impedance concentric screen made of annealed copper wires and counter-helical copper tape. This robust shielding envelope effectively intercepts high-frequency radiated emissions and transient voltage spikes produced by frequency converters, electric motors, and heavy industrial switchgear, preventing interference with sensitive control systems while ensuring zero toxic halogen emissions during building fires.

FXQJ EMC Cable Construction

• Conductor: Up to 35mm²: Circular stranded plain copper conductors; Above 35mm²: Shaped compacted stranded plain copper conductors conforming to IEC 60228.
• Insulation: Cross-Linked Polyethylene (XLPE) delivering high dielectric strength and thermal endurance up to +90°C.
• Bedding / Inner Filler: Halogen-Free Flame-Retardant (HFFR) compound filling the core interstices to maintain a round, compact cable profile.
• Screen: Concentric annealed copper wire screen combined with an overall copper tape binder delivering superior electromagnetic compatibility (EMC) attenuation and reliable earth continuity.
• Outer Sheath: UV-stabilized, halogen-free flame-retardant (HFFR) polymer compound engineered for high environmental toughness and flame retardance.
• Core Identification: 3-core: Brown, Black, Grey; 4-core: Brown, Black, Grey, Blue.
• Sheath Colour: Black.

Applications

FXQJ EMC cables are specifically engineered for fixed power distribution and variable frequency drive (VFD) connections in industrial installations, processing facilities, and commercial buildings where electromagnetic interference (EMI) must be rigorously controlled. Their durable, water-resistant HFFR jacket allows installation indoors, outdoors in free air, directly in ground trenches, and permanently immersed in water.

• Variable Speed Drives & Inverter Feeds: Interconnecting frequency converters to electric motors while suppressing high-frequency radiated harmonics.
• Industrial Manufacturing Facilities: Power feeds across automated manufacturing plants, paper mills, and steelworks located near sensitive telemetry networks.
• Substation & Energy Distribution: Direct burial and trench distribution lines delivering primary energy to switchboards in wet or flooded conditions.
• Water Treatment & Marine Infrastructure: Permanent water-submerged and high-humidity installations requiring water-resistant, zero-halogen power cabling.

Specifications & Dimensions

The FXQJ EMC 1kV cable series encompasses 3-core and 4-core configurations with integrated concentric copper screens, covering phase conductor cross-sections from 2.5mm² up to 300mm² and matching screen cross-sections from 2.5mm² to 150mm² (such as 2.5/2.5mm² up to 300/150mm²). Operating at a nominal voltage rating of 0.6/1kV, it supports a wide operating temperature spectrum from -40°C to +90°C with a minimum installation laying temperature of -10°C, maintaining a minimum bending radius of 8 times the overall diameter. Overall nominal outer diameters range from 13.0mm on 3×2.5/2.5mm² up to 65.0mm on 4×300/150mm² cables, with nominal weights spanning 280 kg/km to 13,500 kg/km, adhering strictly to HD 604.5D and SS 424 14 18 manufacturing tolerances.

Standards

Design & Construction Standards: HD 604.5D, HD 604 S1-5D, SS 424 14 18, SS 424 14 24, IEC 60228
Halogen-Free & Smoke Emission: IEC 60754-2 (Zero Halogen Acid Gas), IEC 61034 (Low Smoke Density)
Voltage Rating (Uo/U): 0.6/1kV
Temperature Spectrum: Operating Temp: -40°C to +90°C; Minimum Installation Temp: -10°C
Minimum Bending Radius: 8 × overall diameter
Regulatory Compliance: European Regulation EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, CE Marked, RoHS Directive 2015/65/EU, REACH EC 1907/2006

Frequently Asked Questions

Q: What makes FXQJ EMC cables particularly suitable for Variable Frequency Drive (VFD) installations?
A: The combined copper tape and concentric annealed copper wire screen creates a 360-degree low-impedance path to ground, containing high-frequency pulse-width modulated (PWM) voltage spikes and preventing electromagnetic noise from interfering with nearby control lines.

Q: Can the FXQJ EMC 1kV cable be installed directly into water and wet ground?
A: Yes, FXQJ EMC cables are specifically certified for fixed installation indoors, outdoors in air, directly buried in the ground, and submerged in water, provided mechanical protection guidelines are followed during installation.

Q: What is the conductor shape transition across different sizes in the FXQJ series?
A: Conductor cross-sections up to and including 35mm² utilize circular stranded copper conductors, while sizes above 35mm² transition to shaped stranded conductors to achieve a more compact cross-section and reduced overall diameter.

Q: What payment terms does Huadong Cable accept for international industrial export orders?
A: We accept standard international commercial payment terms, including Telegraphic Transfer (T/T, with 30% advance deposit and 70% against shipping documents) and 100% Irrevocable Letter of Credit (L/C) at sight.

FXQJ EMC Cable – Why Choose Huadong?

Huadong Cable Group manufactures FXQJ EMC 1kV cables in strict compliance with HD 604.5D, SS 424 14 18, and SS 424 14 24 standards, verified through testing for conductor resistance, XLPE insulation integrity, and electromagnetic screening attenuation. Utilizing high-purity oxygen-free Class 2 circular and shaped stranded plain copper conductors, our automated extrusion lines apply cross-linked polyethylene insulation to ensure low electrical losses and continuous service temperatures up to +90°C. Combined with an HFFR bedding filler, a helical copper tape, an annealed copper wire screen, and a durable black HFFR outer jacket, our cables deliver reliable EMC screening and moisture resistance across air, ground, and water installations.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates advanced multi-wire stranding, concentric wire screening, and halogen-free polymer extrusion facilities certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. By eliminating intermediary markups, we provide competitive factory-direct pricing, 100% Mill Test Certificates (MTC) tested in accredited facilities, tailored continuous drum lengths on ISPM 15 heat-treated export wooden reels, and seamless door-to-port logistics for EPC contractors and industrial clients worldwide.