3.6/6kV NYFGY Cable
NYFGY Cable is a 3.6/6 (7.2)kV PVC insulated copper medium-voltage power cable with galvanised flat steel wire armour, designed for fixed power and control installations under VDE 0271 and IEC 60228 standards. Built with Class 2 stranded plain copper conductors, PVC YI4 insulation, a PVC filler and tightness sheath, galvanised flat steel wire armour (SWA), and a flame-retardant red PVC outer sheath, it offers high mechanical impact protection and electrical reliability
What is NYFGY Cable?
NYFGY Cable is a 3.6/6kV (7.2kV maximum voltage) medium-voltage power and control cable manufactured in strict compliance with VDE 0271 and IEC 60228 standards. Designed for fixed infrastructure and high-capacity equipment power supply, it delivers exceptional mechanical strength, allowing it to withstand severe soil weight, compression, and mechanical stress without requiring supplementary conduit piping.
The construction pairs high-purity Class 2 stranded copper conductors with heavy-duty PVC YI4 insulation, a PVC inner filler, and a specialized tightness sheath layer. The primary mechanical shield consists of galvanised flat steel wires (SWA), wrapped helically to form a smooth, high-coverage armouring layer beneath a distinctive flame-retardant red PVC outer sheath. This configuration ensures superior resistance against external physical shocks, moisture ingress, and static ground crushing loads.
NYFGY Cable Construction
- Conductor
- Class 2 stranded plain copper conductor per IEC 60228, providing efficient power transfer and mechanical stability.
- Insulation
- Specialized PVC YI4 (Polyvinyl Chloride) compound designed for medium-voltage thermal and dielectric stress.
- Filler Layer
- PVC (Polyvinyl Chloride) compound completely filling inter-core spaces.
- Tightness Sheath
- PVC (Polyvinyl Chloride) protective bedding layer designed to prevent fluid ingress and cushion the cores.
- Armour Layer
- Galvanised flat steel wires (SWA) arranged to maximize surface contact and deliver heavy mechanical crushing protection.
- Outer Sheath
- Flame-retardant PVC (Polyvinyl Chloride) compound compliant with IEC 60332-1.
- Sheath Colour
- Red.
Applications
NYFGY 3.6/6kV Armoured Power Cable is engineered for primary power supply and control circuits in fixed medium-voltage installations where severe external mechanical forces or moist soil conditions prevail. Its robust flat steel wire armour and water-barrier tightness sheath make it suitable for direct subterranean burial in ground trenches or continuous immersion in water bodies without needing extra protective trunking.
In heavy industrial and municipal power infrastructure, NYFGY is widely utilized to connect transformer stations, medium-voltage distribution switchgear, large industrial motors, and municipal power grids. The red PVC outer jacket serves as an immediate visual indicator for high-voltage danger during direct-buried earth excavation, minimizing the risk of accidental third-party strikes during ongoing civil engineering works.
Specifications & Dimensions
| No. of Cores | Nominal Cross Sectional Area (mm2) | Nominal Overall Diameter (mm) | Nominal Weight (kg/km) |
| 3 | 35 | 37.0 | 2450 |
| 3 | 50 | 39.0 | 3100 |
| 3 | 70 | 43.0 | 3700 |
| 3 | 95 | 44.0 | 4600 |
| 3 | 120 | 47.0 | 5450 |
| 3 | 150 | 59.0 | 7300 |
| 3 | 185 | 61.0 | 7550 |
| 3 | 240 | 64.0 | 9641 |
Standards
NYFGY medium-voltage armoured power cables are produced, batch-tested, and certified against rigorous German and international electrical engineering standards:
Design & Test Specifications: VDE 0271, IEC 60228
Flame Retardancy: IEC 60332-1
Voltage Rating: 3.6/6 (7.2)kV
Temperature Rating: Fixed installation -5°C to +70°C; Maximum conductor operating temperature +70°C
Minimum Bending Radius: 15 x overall diameter
Regulatory Compliance: RoHS Directive 2015/65/EU, REACH EC 1907/2006
Frequently Asked Questions
Q: What is the main structural advantage of flat steel wire armour in NYFGY cable?
A: Galvanised flat steel wires provide wider surface area contact compared to round wires, creating an ultra-compact mechanical shield that distributes earth pressure and crushing forces much more effectively.
Q: Can NYFGY 3.6/6kV cable be directly buried or submerged in water?
A: Yes, subject to national installation regulations, NYFGY is specifically rated for direct burial in subterranean backfills and total immersion in water without extra mechanical piping.
Q: Why is the outer sheath of NYFGY cable colored red?
A: The red PVC sheath is the industry standard for medium-voltage power cables, serving as a distinct safety signal to identify high-voltage lines during civil excavation.
Q: What payment terms does Huadong Cable Group accept for international B2B orders?
A: We accept Telegraphic Transfer (T/T) and Irrevocable Letter of Credit (L/C) at sight for international B2B contracts.
Why Choose Huadong Cable for NYFGY Cable?
Huadong Cable Group is an established manufacturer and global supplier of medium-voltage armoured power cables, with over 20 years of production expertise. We provide factory-direct NYFGY cables manufactured in strict compliance with VDE and IEC standards, complete with official Material Test Certificates (MTC) for every order batch.
Our production facilities support custom drum lengths, ISPM 15 compliant steel-wooden export reels, and comprehensive logistics services for global EPC contractors, power utilities, and industrial project developers worldwide.
Related Products
Trusted Manufacturer
Based on high-quality products, a good reputation, and excellent service, we sincerely hope to establish mutually beneficial cooperation with domestic and foreign merchants and create a bright future together.
Our Clients
We are professional cable manufacturers. Thanks to the excellent quality of our cables and continuous product innovation, we export them to over 130 countries worldwide and have received numerous praises from our customers.
Our Workshop
HuaDong Cable Group was established in 1999 and covers an area of 66,000 square meters, located in the Xiuwu Industrial Zone of Jiaozuo City, China. We have 20 advanced production lines and 25 testing machines, with an annual production capacity of over 15 million kilometers.
Why choose Huadong cable?
As a leading global cable manufacturer, Huadong Cable delivers high-performance wire and cable solutions engineered to strict international standards. Trusted in over 130 countries, we combine factory-direct advantages with uncompromising quality to power your critical projects worldwide.
AboutHuaDong
Established in 1999, Huadong Cable Group is a national high-tech enterprise and an integrated manufacturer specializing in advanced cable R&D, production, and global trade. Deeply integrated into global infrastructure and the Belt and Road Initiative, Huadong Cable Group exports to over 130 countries and regions worldwide, including Europe, South America, North America, the Middle East, Africa, Asia, and Oceania.
Technology HuaDong
Huadong Cable Group places technology and continuous R&D at the core of our operations. Supported by a robust team of 60 senior R&D specialists and experienced engineers, we hold over 100 national patents and utility models. This strong technical foundation ensures rigorous quality control, exceptional product durability, and tailored engineering support for every client.
Main products
Our comprehensive product includes high-quality power cables, aerial insulated cables (ABC cables), marine cables, flame-retardant & fire-resistant cables, and low-smoke halogen-free (LSZH) cables. We also specialize in rubber cables, high-temperature resistant cables, instrument & control cables, solar/photovoltaic cables, and customized wiring solutions for diverse industrial applications.
ISO, SGS, BV certification; technical patents and product certification
TEAMS AND CLIENTS
Export countries
Technical patents
Annual production
Employees
