- Configuration flexible : two versions, ONE (with earth) et nym-o.
- Resistance to wear and corrosion : PVC double sheath, acid resistant, to alcalis and oils.
- Large temperature range : From -30 ° C to +70 ° C, cold installation and high temperature stability.
- High conductivity : Solid or stranded copper conductors (class 1/2), some tin-plated for better corrosion resistance.
- Certifications multiples : CE/VDE/TÜV conformity to European standards, flame retardant and low smoke and halogen emissions.
- Decreasing rates : Minimum command of 300 m, volume discounts, customization of the sheath and number of conductors.
Product description
The cable Nym is a fixed wiring cable widely used in European buildings, with PVC insulation and jacket and twisted solid copper conductor (Class 1 or 2). It is available in two models : ONE (with yellow-green grounding identification) et NYM-O (without earthing identification). NYM cable is available in single-pole or multi-pole configurations, with a nominal voltage of 300/500V, suitable for residential electrical distribution systems, commercial and industrial. It can be buried directly in concrete or installed in conduits, cable trays or inside walls. Its maximum operating temperature is +70°C, while the installation temperature can drop to -35°C, avoiding direct exposure to the sun.
Construction
| Components | Materials and specifications |
| Driver | Copper receipt (Solid Copper Class 1 ou toronné Classe 2), range of sections : 1,5~10 mm² |
| Isolation | PVC (thickness conforms to IEC standard 60227, For example, for a driver 1,5 mm², insulation thickness ≥ 0,7 mm) |
| Filling | Falfa -free fire -free polypropylene rope (filling rate ≥ 85 %) |
| Earth conductor | Two-tone yellow-green PVC insulated copper conductor (section ≤ 50 % of the main driver) |
| Sheath | PVC (Thickness ≥ 1,2 mm, Complies with the standard in 50363-3) |
| ZMS Cable offers customization of NYM cables according to your material requirements, standards and colors. | |
Applications of NYM cable
- Electrical distribution in buildings : Widely used for fixed wiring in residential buildings, commercial and industrial, such as lighting circuits, socket lines and power supply of electrical equipment.
- Installation in concrete : Can be directly embedded in static concrete or masonry structures, but should be avoided in concrete environments subject to vibration.
- Indoor and outdoor installation : Suitable for installation in conduits, cable trays or inside walls, with UV protection required for outdoor installations.
- Low voltage power transmission : Tension nominale de 300/500V, compatible with low voltage distribution systems and powering small motors and appliances.
- Multi-environment compatibility : Suitable for dry and humid environments, meeting the needs of electrical control and signal transmission.
Standard
From vde 0281-1, A 21031-4 and HD 21.4S2 and IEC 60227-4
Properties
| Settings | Typical values / Beach |
| Tension nominale | 300/500 V |
| Test voltage | 2000 V C.A. |
| Driver resistance (20°C) | ≤12,1 Ω/km (1,5 mm²) ～ ≤1.83 Ω/km (10 mm²) |
| Isolation resistance | ≥0,011 TΩ·km (70°C) |
| Continuous operating temperature | -30° C to +70 ° C |
| Maximum temperature | 70°C |
| Short circuit temperature | +160°C (5 seconds) |
| Radius of curvature | 6 × cable diameter (installation fixe) |
| Tensile strength | ≥15 N/mm² (sheath) |
| Flame delay classification | Complies with IEC standards 60332-1-2, One 60332-1-2 and in 60332-1-2 |
Technical data
| Section (mm²) | Resistance to 20℃(Ω/km) | Outdoor diameter (mm) | Weight(kg/km) |
| 1 x 1,5 | 12,1 | 5,3 | 45 |
| 1 x 2,5 | 7,41 | 5,8 | 58 |
| 1 x 4 | 4,61 | 6,5 | 80 |
| 1 x 6 | 3,08 | 7,05 | 104 |
| 1 x 16 | 1,15 | 9,25 | 211 |
| 1 x 25 | 0,727 | 10,95 | 317 |
| 1 x 35 | 0,524 | 12 | 414 |
| 2 x 1,5 | 12,1 | 8,2 | 107 |
| 2 x 2,5 | 7,41 | 9,5 | 150 |
| 2 x 4 | 4,61 | 11,2 | 218 |
| 2 x 6 | 3,08 | 12,3 | 281 |
| 2 x 16 | 1,15 | 17,1 | 591 |
| 2 x 35 | 0,524 | 22,6 | 1140 |
| 3 x 1,5 | 12,1 | 8,5 | 123 |
| 3 x 2,5 | 7,41 | 9,95 | 176 |
| 3 x 4 | 4,61 | 11,8 | 261 |
| 3 x 6 | 3,08 | 13 | 343 |
| 3 x 16 | 1,15 | 18,1 | 735 |
| 3 x 25 | 0,727 | 22,2 | 1135 |
| 3 x 35 | 0,524 | 24,45 | 1472 |
| 4 x 1,5 | 12,1 | 9,8 | 162 |
| 4 x 2,5 | 7,41 | 11,05 | 221 |
| 4 x 4 | 4,61 | 13,7 | 346 |
| 4 x 6 | 3,08 | 14,7 | 440 |
| 4 x 16 | 1,15 | 19,8 | 916 |
| 4 x 25 | 0,727 | 24,3 | 1418 |
| 4 x 35 | 0,524 | 26,85 | 1852 |
| 5 x 1,5 | 12,1 | 10,6 | 195 |
| 5 x 2,5 | 7,41 | 11,95 | 269 |
| 5 x 4 | 4,61 | 14,2 | 392 |
| 5 x 6 | 3,08 | 15,7 | 521 |
| 5 x 16 | 1,15 | 22,05 | 1132 |
| 5 x 25 | 0,727 | 26,65 | 1740 |
| 5 x 35 | 0,524 | 30,4 | 2338 |
| 7 x 1.5 | 12,1 | 12,5 | 272 |
| 7 x 2.5 | 7,41 | 12,8 | 325 |
Comparison between NYM-J cable and NYM-O cable
| Comparison criteria | ONE | NYM-O |
| Grounding Design | With independent yellow-green earth conductor (same section) | Without earth conductor |
| Voltage level | 300/500 V (three-phase system) | 300/300 V (single phase system) |
| Sheath performance | Double layer gray PVC jacket (better UV resistance) | Single-layer orange PVC sheath (lower UV resistance) |
| Fill layer | Present (reinforces mechanical protection) | Absent |
| Current carrying capacity | Higher (16,5 A vs 14,0 A) | Weaker |
| Environmental adaptability | Better resistance to corrosion and humidity | Suitable for dry or temporary environments |
| Certification requirements | Must meet grounding system standards (IEC 60364) | Suitable for ungrounded installations |
Selection recommendations（NYM-J cable or NYM-O cable）
When to choose NYM-J cable ?
- Fixed installation requiring earthing protection (ex. : residential and commercial buildings)
- Three-phase electrical distribution systems (tension > 300V)
- Humid or corrosive environments (ex. : industrial workshops)
When to choose NYM-O cable ?
- Single-phase low-voltage control circuits (ex. : lighting, signal transmission)
- Power supply of temporary or mobile equipment (use with isolation transformer)
- Limited budget projects (cost reduction)
NYM Cable vs Similar Cables
| Features | Nym | H07RN-F (rubber cable) | Sihf (high temperature silicone cable) | XLPE-insulated |
| Standards | IEC 60227 | IEC 60245 | IEC 60684 | IEC 60502-1 |
| Conductor material | Copper (Class 1/2) | Copper (Class 5) | Tinned copper (Class 2) | Copper (Class 1/2) |
| Insulation material | PVC | EPR rubber | Silicone | Cross-linked polyethylene (XLPE) |
| Sheath material | PVC | Chloroprene rubber | Fiberglass + silicone | PVC or LSZH |
| Temperature range | -30° C to +70 ° C | -40°C to +90°C | -60°C to +180°C | -40°C to +90°C |
| Flame resistance | Compliant with IEC 60332-1-2 | Compliant with IEC 60332-1-2 | Compliant with IEC 60332-3-22 (flame propagation on bundled cables) | Compliant with IEC 60332-3-22 |
| Oil resistance | Weak (PVC swelling) | Excellent (test ONE 60811-404) | Excellent | Good (moderate resistance of XLPE to oils) |
| Typical applications | Fixed wiring inside buildings | Mobile equipment / temporary food | High temperature industrial equipment | Electrical distribution systems |
Benefits
- High durability structure : PVC insulation and sheath provide excellent wear resistance, with acids, to bases and chemical corrosion, suitable for dry environments, wet and concrete.
- Large temperature range : Operating temperature range -35°C to +70°C, allowing installation at low temperatures and stable operation at high temperatures, meeting the demands of extreme environments.
- Excellent driver performance : Twisted Solid Copper Conductor (Class 1/2), high purity copper core ensuring low resistance and high conductivity, some models having a tinned conductor to improve corrosion resistance.
- Multiple security certifications : Complies with European VDE standards, CE, with fire resistant properties and electrical insulation reliability, meeting building safety standards.
- Versatile and flexible applications : Available in monopolar configurations 12 drivers, covering energy transmission needs, lighting and power equipment for residential buildings, commercial and industrial.
- Personalized service : ZMS CABLE offers a service of tailor -made cables, including conductor specification, the number of drivers, the color of the sheath (For example, gray RAL7001 or black RAL9005) and specific weather resistance needs.