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Rustrol® Systems, DC-DecouplerTM Model: DCD

Interprovincial/International Corrosion Control manufactures Rustrol® Systems for World Wide Distribution. The Rustrol® solid-state DC-DecouplerTM Model: DCD are an essential component for safely isolating cathodically protected structures (i.e. Pipelines, On-Grade or Buried Storage Tanks, etc.).






Rustrol® DC-DecouplerTM Model: DCD device is designed to protect personnel and equipment from electrical disturbances. The DC-DecouplerTM Model: DCD blocks DC current associated with cathodically protected structures, and provides an effective and continuous conductive path to the Utilities Grounding/Earthing Network for all other forms of Electrical Exposures, such as:

  • Lightning/Surge Currents
  • AC Fault Currents
  • AC Induced Voltages
  • Over-Voltage Protection.

The Rustrol® DC-DecouplerTM, Model: DCD enhances the Rustrol® Product Line by providing economical alternative for light/moderate (i.e. non-continuous) exposure of Lightning, AC Mitigation/Discharge and AC Fault Current.


The Rustrol® DC-DecouplerTM Model: DCD is a recent development to the Rustrol® Product Line. The DC-DecouplerTM's unique features are based on the proven Rustrol® technology utilizing solid-state design and superior test proven, quality components throughout the construction. The standard DCD Product Line provides an economical engineered solution in a compact, lightweight, ready to mount assembly.


The Rustrol® DC-DecouplerTM Model: DCD is innovative by design, whereby DC isolation is achieved and AC coupling is maintained, ensuring electrical grounding criteria remains effective.


The Rustrol® DC-DecouplerTM Model: DCD is capable of reducing the potential difference across isolating flange assemblies and/or monolithic isolating joints to well below the industry accepted criteria (i.e. <10 volts AC rms).


The Rustrol® DC-DecouplerTM Model: DCD is versatile and can be used in numerous applications, including coupling the primary structure (i.e. pipes, valves, pumps, etc.) in series through the DC-Decoupler to Gradient Control Systems.


The Rustrol® DC-DecouplerTM Model: DCD is typically utilized within:
  • Oil and Gas Transmission Pipelines
  • Refinery and Petrochemical Industries
  • Electrical Utilities
  • Tank Farm/Oil Depot Facilities.

The Rustrol® DC-DecouplerTM Model: DCD product advantages are:
  • Independent Product Certification - ATEX/IECEx
  • Rustrol®, an Industry Leader for Safe DC Isolation
  • Fail-Safe Design; Grounding Criteria Assured
  • Compact; Ready to Mount Design
  • Maintenance-Free Performance
  • Eliminate "Step and Touch" Potential Risk
  • Maintains coating Stress Voltages within Acceptable Limits
  • No additional Mounting Accessories required for Installation
  • No Structure Compromise Required for Installation (i.e. Flange Drilling)

The Rustrol® DC-DecouplerTM Model: DCD is available in common models with rated AC Fault Current exposure parameters. DC Voltage Thresholds and other Operating Parameters are to be specified by the "End-User", please review the Selection Guide within the DC-DecouplerTM Brochure.


Rustrol® Systems are manufactured in accordance with ICCC's Quality Assurance Program, based on product "type" testing by an Independent Test Facility, all products are CE Listed.


Rustrol® DC-DecouplerTM Model: DCD ( Announcement)

Independent listings with the European Community, the ATEX Directive and CE, provides the assurance to 'End-Users' of the required performance and reliability of the Rustrol® DC-DecouplerTM Model: DCD. To the best of our knowledge Rustrol® is the only industry related product to meet this high standard of ATEX specified criteria (i.e. Gas and Dust Hazardous Areas).

The Rustrol® DC-DecouplerTM Model: DCD recently achieved IECEx Certification, and is the only DC Decoupling Device to be certified under both the IECEx Scheme and the ATEX European Directive 94/9/EC, for intended use in Gas and Dust Explosive Atmospheres and bears the following Marking:


II 3GD
  Ex nA IIC T6 Gc (-20°C ≤ Ta ≤ +50°C)
Ex tc IIIC T60°C Dc (-20°C ≤ Ta ≤+50°C)

The Rustrol® DC-DecouplerTM, Model: DCD-ATEX complies with the following standards:
EN 60079-0:2012+A11:2013, Explosive atmospheres. Equipment. General requirements
EN 60079-15:2010, Explosive atmospheres. Equipment protection by type of protection "n"
EN 60079-31:2014, Explosive atmospheres. Equipment dust ignition protection by enclosure "t"

The IECEx Certificate of the Rustrol® DC-DecouplerTM Model: DCD is accepted by Certification Bodies in thirty-three (33) IECEx member countries including the European Community, Australia, Brazil, Canada, China, India, Japan, Korea, Russia, United Kingdom, USA, and many other leading countries.


Rustrol® DC-DecouplerTM Model: DCD-ATEX ( Korea Safety Certification)

The Rustrol® DC-DecouplerTM Model: DCD-ATEX achieved the KCs Mark (Korea Safety Certification)

The Korea Safety Certification Scheme is a mandatory certification that requires products to be certified by a Korean Certification Body; the certification process conforms to Korean Industrial Safety and Health Act.

The KCs Certification is issued by a Korean Certification Body, which is accredited by Korea Standards Association (KSA).




Options/Accessories:

Cable Terminations:

The Rustrol® DC-DecouplerTM Model: DCD is typically provided with a Standard Flange Mount Assembly (FMA):

  • Flange Mount Assembly (FMA), consisting of one (1) cable 300 mm (12”) length of AWG #6 (equivalent to 16 mm2), multi-strand connecting cable with high temperature black insulation and one (1) Rustrol® External Flange Mount Bracket to accommodate for up to M30 (1”) dia. Bolt. Example of Cable Termination Order Code: DCD-02.5-SL-0202-ATEX-FMA (Typical Photograph)
  • Optional Terminal (OT), similar to Flange Mount Assembly (FMA) with 90° turn of the Mounting Terminal Post. (Typical Photograph)
  • Dual Terminal (DT), two (2) "External" Terminal Posts with 1 Bolt Pattern, complete with 3/8" - 16 UNC x 1" Stainless Steel Hex Head Bolt, Washer, Lock Washer and Nut. (Typical Photograph)
  • Internal Terminal (IT), two (2) Internal Terminal Pads, complete with aluminum termination lugs. The Internal Terminals provide additional safety features, especially for Hazardous Locations that contain Conductive Dust (i.e. Ex tc IIIC T60°C Dc (-20°C ≤ Ta ≤+50°C)) (Typical Photograph)


  • Please review ICCC’s Drawing No. DCD-04, Rev. 0 for Cable Termination Options.

 

Free-Standing Fibreglass Pedestal Mount:

The Rustrol® Cathodic lsolator® Fibreglass Pedestal, Model: CIFP-36 provides a secure, maintenance-free secondary enclosure for mounting the Rustrol® Cathodic lsolator®, Model: Cl, SSP or DCD (i.e. DC Decoupling Device).

Please visit the webpage of Rustrol® Cathodic lsolator® Fibreglass Pedestal, Model: CIFP-36, for Typical lnstallation and additional information.

And these are just a few typical applications for the Rustrol® DC-DecouplerTM. Other possibilities are limited only by one's imagination. Contact us today to speak with our experts or to request more information

Demand the Best, Specify Rustrol®!  
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