CABLING & CABLE MANAGEMENT SUPPLEMENT FEATURE


ntelliconnect has provided a new design of rugged corrosion and waterproof connectors to a UK company that manufacture a unique system for remote monitoring of the wall thickness of pipelines. The end system uses discrete RF modules directly connected to specific points on an installation, allowing continuous measurement and monitoring of the pipeline wall thickness to be remotely managed. Traditionally, this activity is carried out manually with staff having to access the relevant areas over a complete installation, which is a costly and time consuming process.


CONNECTOR BRIEF Equipment was to be installed outside in a wide range of environments (from desert to near arctic conditions) so it needed to be waterproof and capable of withstanding sand and dust. A range of waterproof TNC/MCX bulkhead mount adaptors, waterproof TNC plug connectors, waterproof quadraxial (four-way for signal and data lines) connectors were required, all of which had to be ATEX approved in the equipment by the customer. Intelliconnect also supplied some


internal cable assemblies requiring ATEX


CORROSION AND WATERPROOF CONNECTORS FOR OIL AND GAS INDUSTRIES I


approval, which needed careful selection of heat shrink sleevings.


DESIGN CHALLENGES The main challenge was the outdoor operating environment (200°C operating temperature ultrasonic thermocouple temperature). The equipment needed to be waterproof to IP68, impervious to sand and dust, and capable of meeting ATEX approval. It also needed to be a custom quadraxial design that was aesthetically similar to the TNC adaptor design, and ensure the device was fitted to the correct TNC bulkhead adaptor.


SOLUTIONS This project was developed from existing Intelliconnect TNC/MCX adaptors, plus a new design quadraxconnector. Standard and reverse polarity design ensured that incorrect device connection could be eliminated, and the materials data and samples were submitted to undergo ATEX approval testing. The adaptors are waterproof both at the bulkhead and sealed internally to prevent moisture ingress through the internal connector components. A mating TNC plug connector, sealed to IP68 rating, was developed and assembled, and a 200°C rated cable was proposed to meet the specific requirements. A custom designed four-way mated pair of connectors were designed, developed and prototyped to be submitted for customer approval and qualification. The ATEX-approved design required a specially designed alignment feature to ensure successful mating of the four contacts, whilst still providing an IP68 sealed connector.


Intelliconnect T: 01245 347145 www.intelliconnect.co.uk


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