Bently Nevada 27490-1085-01 Armored Radiation Resistant Extension Cable

The 27490-1085-01 extension cable connects proximity probes to sensor units reliably inside radiation areas within atomic power facilities.

Summary Overview

• Bently Nevada manufactures the 27490-1085-01 radiation resistant extension cable to transmit crucial machinery health signals safely.
• Flexible stainless steel armor with a tough Tefzel outer jacket guards delicate internal conductors against heavy crushing impacts.
• Gold-plated brass connectors stop oxidation completely to guarantee excellent electrical signal conductivity over long operating years.
• The 108.5-foot cable length supports wide field installations between distant proximity sensors and monitoring racks efficiently.
• Engineers specify this rugged cable assembly to protect critical turbine monitoring circuits in nuclear power plants.

Core Technical Parameters

• Brand Identity: Bently Nevada manufactures high-precision industrial vibration monitoring components and sensor cable assemblies globally.
• Model Identifier: Maintenance teams order the exact part number 27490-1085-01 for radiation zone cable replacements.
• System Probe Diameter: The internal wire assembly matches 0.300-inch radiation resistant proximity sensor systems accurately.
• Cable Physical Length: The total manufactured length measures exactly 108.5 feet (33.08 meters) for wide field spans.
• Center Core Resistance: The primary center signal conductor maintains a nominal resistance of 0.36 Ω/m (0.11 Ω/ft).
• Shield Outer Resistance: The protective shield conductor maintains a low nominal resistance of 0.023 Ω/m (0.007 Ω/ft).
• Electrical Cable Capacitance: The low-loss dielectric layer limits total capacitance to 63 pF/m (19.2 pF/ft) continuously.
• Temperature Resistance Rating: Internal materials withstand continuous extreme site temperatures from -29°C to +150°C.
• Tensile Mechanical Strength: Connector junctions endure strong pulling forces up to 133 N (30.0 pounds) safely.
• Field Wiring Compatibility: Terminal connections accept standard field wire sizes from 0.2 to 1.5 mm2 (16 to 24 AWG).

Model Code Nomenclature

• Bently Nevada 27490 Series Cable Design
  • 27490: 0.300 Inch Radiation Resistant Extension Cable
    • 1085: Cable Length - 108.5 Feet (33.08 Meters) Total Physical Length
    • 01: Armor Protection - Stainless Steel Armor with Tefzel Outer Jacket

Key Product Advantages

• Stainless steel armor shields delicate internal wires from accidental pinching, sharp cuts, and heavy mechanical stress.
• Tefzel outer jacket resists harsh industrial chemicals, aggressive oils, and corrosive liquids in demanding environments.
• Gold-plated brass connectors eliminate contact corrosion and maintain stable electrical signal transmission across long periods.
• Radiation resistant materials allow reliable continuous operation near nuclear reactors without premature insulation breakdown.
• High tensile strength prevents accidental cable tearing during tough field installation pulls through tight conduits.

Installation Guidelines

• Route the armored extension cable through protective cable trays away from high-voltage electrical power lines.
• Connect the gold-plated connector plug to the matching proximity probe lead connector until it locks firmly.
• Run field wiring using 3-conductor shielded triaxial cables up to 305 meters (1,000 feet) max length.
• Keep cable bend radiuses smooth during mounting to avoid crimping the internal flexible stainless steel armor.
• Check the frequency response curves when planning long field wiring runs to prevent high-frequency signal roll-off.

Packaging and Logistics

• The factory shipping package contains one fully assembled, coiled extension cable unit ready for installation.
• We back every original customer purchase with a comprehensive 12-month quality warranty for complete investment protection.
• Logistics teams ship international orders quickly using reliable global express couriers like FedEx, UPS, and DHL Express.

Frequently Asked Questions

• What physical materials protect the exterior of this armored extension cable model?
  • Flexible stainless steel armor with a durable Tefzel outer jacket protects the delicate inner signal wires.
• What physical wire sizes work with the field wiring terminals on this system?
  • Field wiring terminals accept standard industrial signal wire sizes from 0.2 to 1.5 mm2 (16 to 24 AWG).
• What is the maximum recommended field wiring distance to the central monitor unit?
  • Engineers recommend a maximum 3-conductor shielded triaxial field wiring distance of 305 meters (1,000 feet).
• What connector material prevents electrical contact oxidation on this cable assembly?
  • Gold-plated brass connectors stop oxidation build-up and preserve low electrical resistance across all contacts.
• How much pulling force can the cable connectors withstand before suffering physical damage?
  • The connector junctions withstand a maximum rated tensile strength force of 133 N (30.0 pounds) safely.

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