NF M87-202 EISF Cable

What is NF M87-202 EISF Cable?

The NF M87-202 EISF cable is a low-voltage, unarmoured, individually and collectively screened multi-core instrumentation cable featuring Class 1 solid or Class 2 stranded copper conductors, PVC insulation, individual PET tape, individual AL/PET screening, individual PVC sheaths, overall PET tape, collective AL/PET screening, and a light blue PVC outer jacket complying with NF M 87-202, UTE C 32-014, and EN 60331-21 standards. It is designed for fixed installation up to 300/500V in petroleum processing plants, chemical refineries, and hydrocarbon production units for transmitting AC or DC analogue signals.

Engineered specifically for hazardous process environments where exposure to aliphatic hydrocarbons is prevalent, this cable pairs specialized chemical-resistant PVC compounding with comprehensive electrostatic shielding. The dual screening system—comprising individual AL/PET foil wraps with individual PVC jackets on each pair/triple, reinforced by an overall collective AL/PET screen—ensures optimal signal isolation, preventing capacitive cross-talk between adjacent channels and deflecting external electromagnetic noise generated by heavy industrial machinery.

NF M87-202 EISF Cable Construction

• Conductor: Class 1 solid copper conductor (0.5mm² and 1.5mm²) or Class 2 stranded copper conductor (0.88mm²) conforming to NF M 87-202 standards.
• Insulation: Polyvinyl Chloride (PVC) compound engineered for dependable dielectric stability up to +90°C.
• Individual Unit Binder & Screen: Individual Polyester (PET) binder tape followed by an individual Aluminium/Polyester (AL/PET) screen applied over each pair or triple.
• Individual Sheath: Polyvinyl Chloride (PVC) compound extruded over each individually screened element for mechanical and electrical isolation.
• Overall Binder & Collective Screen: Collective Polyester (PET) binder tape wrapped around the assembled core bundle, shielded by an overall Aluminium/Polyester (AL/PET) tape screen.
• Outer Sheath: Specially formulated Polyvinyl Chloride (PVC) compound resistant to aliphatic hydrocarbons, flame retardant per IEC/EN 60332-1-2 and IEC/EN 60332-3-24.
• Core Identification: Pairs: White and Red cores with numbered printing; Triples: Blue, White, and Red cores with numbered printing.
• Sheath Colour: Light Blue.

Applications

NF M87-202 EISF cables are specifically engineered for interconnecting measuring instruments, flowmeters, pressure sensors, thermocouples, and supervisory control desks across petroleum, petrochemical, and industrial chemical units where resistance to aliphatic hydrocarbons is mandatory. Their high electrostatic screening efficiency makes them ideal for sensitive analogue communication channels in electrically disturbed environments.

Typical installation environments include:

• Petroleum Refineries & Downstream Plants: AC and DC analogue signal wiring across processing units subject to chemical hydrocarbon vapors.
• Petrochemical Synthesis Facilities: Field transmitter and transducer interconnects routed through indoor trays and sheltered trunking raceways.
• Intrinsically Safe Control Systems: Hazardous-area instrumentation loops identified via standardized light blue outer jacketing.
• Industrial Gas & Chemical Plants: High-density multi-pair control telemetry requiring individual channel isolation to prevent cross-talk.

Specifications & Dimensions

The NF M87-202 EISF cable portfolio covers multi-pair (1P, 2P quad, 3P, 7P, 12P, 19P, 27P) and multi-triple (1T, 2T, 3T, 7T, 12T, 19T, 27T) configurations across conductor cross-sections of 0.5mm² (Class 1), 0.88mm² (Class 2), and 1.5mm² (Class 1). Operating at a rated voltage of 300/500V, the cable supports continuous operating temperatures up to +90°C and installation temperatures from +5°C to +50°C. Conductor DC resistance values at 20°C are 37.9 Ω/km for 0.5mm², 21.6 Ω/km for 0.88mm², and 12.5 Ω/km for 1.5mm², while maximum mutual capacitance values range from 145 pF/m to 230 pF/m depending on core cross-section and screening configuration, with all overall cable diameters strictly conforming to NF M 87-202 and UTE C 32-014 manufacturing tolerances.

Standards

Huadong Cable Group manufactures and factory-inspects NF M87-202 EISF instrumentation cables to guarantee complete compliance with French and international petroleum engineering standards:

Design & Testing Standards: NF M 87-202, UTE C 32-014, EN 60331-21
Flame Retardancy: IEC/EN 60332-1-2 (Single vertical wire test), IEC/EN 60332-3-24 (Bunched cable vertical test)
Chemical Resistance: Suitable for aliphatic hydrocarbons resistance applications
Voltage Rating (Uo/U): 300/500V
Temperature Spectrum: Operating Temperature: Up to +90°C; Installation Temperature: +5°C to +50°C
Regulatory Compliance: CE Marked, European Regulation EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006

Frequently Asked Questions

Q: What is the significance of the “EISF” designation in NF M 87-202 standards?
A: In NF M 87-202 terminology, “EISF” designates an unarmoured instrumentation cable featuring both individual screening and individual sheathing per element (pair or triple), combined with an overall collective screen and outer sheath, providing maximum electrical isolation against cross-talk.

Q: Why does the cable feature a Light Blue outer sheath?
A: Light blue outer jacketing is the internationally recognized color code for intrinsically safe (IS) circuits operating in potentially explosive atmospheres, allowing operators and safety inspectors to easily differentiate low-energy signal paths from primary power feeds.

Q: Can NF M87-202 EISF cable be used for direct burial applications?
A: No, the EISF variant is an unarmoured cable designed for indoor cable trays, conduits, and sheltered channels; for direct ground burial, mechanical armoured versions such as EGCF or EGFA should be utilized.

Q: What payment terms does Huadong Cable accept for international petrochemical export orders?
A: We provide standard international commercial payment terms including Telegraphic Transfer (T/T) and 100% Irrevocable Letter of Credit (L/C) at sight for engineering procurement contractors and refinery automation integrators.

NF M87-202 EISF Cable – Why Choose Huadong?

Huadong Cable Group manufactures NF M87-202 EISF instrumentation cables in strict conformity with NF M 87-202 and UTE C 32-014 standards, verified through rigorous IEC/EN 60332-1-2 and IEC/EN 60332-3-24 flame propagation testing. By selecting high-purity plain copper conductors—calibrated as Class 1 solid for 0.5mm² and 1.5mm² or Class 2 stranded for 0.88mm²—we ensure stable DC resistance, low signal attenuation, and long-term transmission integrity. Combined with precision PVC insulation, individual and collective AL/PET screening with intermediate PVC sheathing, and a specially formulated aliphatic hydrocarbon-resistant light blue PVC outer jacket, our cables provide exceptional operational security and thermal endurance up to +90°C in aggressive oil and gas processing environments.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates advanced multi-pair planetary cabling, electrostatic taping, individual jacket extrusion, and outer compounding workshops certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. By eliminating commercial middlemen, we offer competitive direct factory pricing, 100% Mill Test Certificates (MTC) tested in accredited testing facilities, customized continuous drum lengths on ISPM 15 heat-treated export wooden reels, and seamless door-to-port logistics for global EPC contractors and petroleum refinery builders worldwide.