IS & Ex


Protecting hazardous areas from corrosion

April 2021 IS & Ex

Remote monitoring specialist, Omniflex, has gained IECEx certification to manufacture intrinsically safe electrical equipment for the global market, supplementing its existing hazardous area equipment approvals. Certification facilitated the delivery of an intrinsically safe cathodic protection (CP) system with remote monitoring and testing to help combat corrosion at NSW Ports’ Bulk Liquid Berth 1 (BLB1) site in Sydney Harbour, where there is the potential for exposure to volatile, flammable substances.

In 2019, NSW Ports embarked on a two-year programme to rehabilitate concrete structures and combat corrosion levels at BLB1 using a CP system. This was a challenging endeavour because BLB1 plays an active role in loading and unloading hazardous liquids and gases, meaning any excess voltage or current could become an ignition source for an explosion. To overcome this, the consultants engaged Omniflex, which assisted with designing an intrinsically safe, remotely monitored hybrid CP system that could protect critical infrastructure at the port from corrosion. The system allowed hybrid CP anodes to be charged during the impressed current phase and monitored during the galvanic phase, with loading and unloading of hazardous gases at the site continuing normally.

“Because this was the first project to use a hybrid CP system in a hazardous area on this scale anywhere in the world, some of the components required certification for the design to meet the necessary standards as an intrinsically safe certified system,” explained David Celine, managing director of Omniflex. “The system uses a network of 35 000 hybrid anodes expressly for the purpose of creating current, which created a new use case that wasn’t covered in the existing documentation.”

Since the anodes were from a UK-based supplier, Omniflex’s technology is manufactured in South Africa and the project site is in Australia, navigating certifying bodies was challenging. Furthermore, IECEx certification requires all equipment made for use in the hazardous area to be manufactured at a facility that is itself certified as being IECEx compliant. This meant that Omniflex’s factory in Durban needed this approval too.

“Despite the hurdles, both Omniflex’s factory and the BLB1 system design were approved and certified as being intrinsically safe for use in areas classified as Zone 1 hazardous for gas group IIB,” concluded Celine. “This enabled us to deliver the project as planned and put a system in place to protect structures at the port from corrosion for the next fifty years.”


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Omniflex through the decades
Omniflex Remote Monitoring Specialists News
As Omniflex celebrates 60 years of engineering excellence, we take a look back at the decade that saw us really kick in and deliver major engineering projects – the 1970s.

Read more...
Remote monitoring in remote and harsh environments
Omniflex Remote Monitoring Specialists Industrial Wireless
For power grids, water supply networks and many industrial facilities, managing infrastructure in remote locations is a significant challenge. Omniflex discusses the requirements for remote monitoring equipment deployed in remote and harsh environments, and shares an example from the company’s work with a South African electricity supply company.

Read more...
Plant to control room visibility
Omniflex Remote Monitoring Specialists Industrial Wireless
When Sasol’s Secunda power plant in South Africa was looking for ways to improve productivity and maintenance responsiveness, it approached remote monitoring experts, Omniflex for real-time monitoring of its electrostatic precipitators across 17 substations.

Read more...
Certified safe power for hazardous industrial environments
Conical Technologies IS & Ex
When working in high-risk environments like oil and gas, petrochemical plants or other hazardous industrial zones, safety isn’t just important, it’s essential. That’s why Traco Power developed the TIB-EX series of DIN rail power supplies, purpose-built to deliver reliable power even in the toughest conditions.

Read more...
Parker strengthens explosion safety
IS & Ex
Parker Hannifin has announced that its 37 mm Ex d m coils have attained new ATEX and IECEx Type Examination Certificates according to the latest explosion protection standards.

Read more...
Upgrading Australia’s first switch-mode CP installation
Omniflex Remote Monitoring Specialists Industrial Wireless
Omniflex has completed a system upgrade for the switch-mode cathodic protection system installation protecting a premium residential precinct in Melbourne, upgrading its remote monitoring with 4G connectivity

Read more...
New modules for distributed integration of intrinsically safe signals
Beckhoff Automation IS & Ex
Beckhoff provides a compact acquisition solution for intrinsically safe signals up to zone 0/20 with the IP67-protected EtherCAT Box modules of the EPX series.

Read more...
Novel closed-loop CP technology wins innovation award
Omniflex Remote Monitoring Specialists Industrial Wireless
Researchers at Deakin University have won the Corrosion Innovation of the Year Award at this year’s AMPP Annual Conference and Expo in Nashville, USA. The award recognised the development of a novel closed-loop cathodic protection system for localised corrosion control in challenging industrial environments, which Omniflex helped with as a technology partner.

Read more...
Stopping the sparks from flying
IS & Ex
Whenever electrical equipment is required for use in hazardous environments they must be designed with intrinsic safety in mind. Darren Barratt, product sales manager at alarm and event management specialist, Omniflex outlines the importance and key aspects of intrinsic safety design.

Read more...
Improved networking technology for fire and gas detection
Omniflex Remote Monitoring Specialists Fieldbus & Industrial Networking
Critical alarm and event management technology supplier, Omniflex has worked with the South African Nuclear Energy Corporation to upgrade equipment providing digital and analogue signals for its safety critical fire and gas alarm systems.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved