SAIMC


SAIMC: Secunda branch

October 2019 SAIMC

At the technology evening on 1 August, Katlego Setwaba from Pepperl+Fuchs gave a presentation on ‘Explosion protection with a focus on purge and pressurisation’.


Johan Maritz (left) thanks Katlego Setwaba.

The effects of accidental fires or explosions can be devastating in terms of lives lost, injuries, damage to property and the environment, and to business continuity. An explosion is the sudden chemical reaction of a flammable material with oxygen with the simultaneous release of high amounts of energy. Flammable materials may be present in the form of gasses, vapours, mist or dusts.

In order for an explosion to occur three conditions must exist: flammable material, oxygen and an ignition source. Purge and pressurisation is a protection method used with Type 4X (SANS 60079-2:2015) enclosures in a classified area. The enclosure is initially purged to remove any internal explosive gases or dust. Once this is accomplished, the enclosure is pressurised with a protective air or inert gas, preventing volatile gasses from entering in order to avoid an explosion.

This was an educational discussion, which attendees found intriguing.

All instrumentation and control related mechanicians, technicians and engineers are welcome to attend the monthly technology evenings, planned dates for the rest of the year are: Thursday 3 October and Thursday 7 November. All presentations earn CPD points for ECSA registered individuals. Enquiries can be directed to branch chairman Johan Maritz (+27 82 856 3865).


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

SAIMC: From the President's desk
November 2019, SAIMC , SAIMC
The end of the year is almost upon us. Have you taken the opportunity to ask yourself what has really changed for you this year? In some areas we have seen significant and exponential change. Automation ...

Read more...
SAIMC: Tshwane branch
November 2019, SAIMC , News
Industry expert talks about importance of continuous learning Learning from industry experts is a vital component of any student’s training. Such an expert is Thabo Lekgowane, a robotics engineer from ...

Read more...
SAIMC: Johannesburg branch
November 2019, SAIMC , SAIMC
Why use wires?    At the technology evening on 11 September, Rudi Erasmus of Phoenix Contact walked us through when and why wireless communication is preferred to cabled communication.    Communicating ...

Read more...
SAIMC: Vaal branch
November 2019, SAIMC , SAIMC
This month’s presentation at the Vaal branch covered the basic principles and fundamentals of SIL. It included the common misconceptions about SIL, risks, accidents, processes, random and systemic failures ...

Read more...
The technology landscape: insights from 2019 conferences
November 2019, SAIMC , Editor's Choice
Industry leaders and governmental agencies across the globe recognise technology as the cornerstone for economic development. President Cyril Ramaphosa famously posited: “The clear implication for South ...

Read more...
SAIMC: From the President's desk
October 2019, SAIMC , SAIMC
It is spring again in South Africa and what a gorgeous time of year. Within the SAIMC, there is also continuous improvement, working towards our 2023 strategic goals.       SAIMC structure changes As the ...

Read more...
SAIMC: Johannesburg branch
October 2019, SAIMC , SAIMC
The August technology evening we was hosted by Yokogawa at the Bryanston Sports Club. The theme was to find out more about the difference between a PLC and a DCS, where the PLC came from, some PLC theory, ...

Read more...
SAIMC: Vaal branch
October 2019, SAIMC , SAIMC
At the August Technology Evening, Busisiwe Zikalala from WIKA gave a presentation titled: Sensor protection methods.    Process sensors come in many forms. In addition to the big four: temperature, pressure, ...

Read more...
SAIMC: Durban branch
October 2019, SAIMC , SAIMC
The Durban branch’s September technology meeting was opened by our COO, Johan Maartens, giving a brief overview of the reasoning behind the changes to the SAIMC’s organisation. He clearly and concisely ...

Read more...
SAIMC: From the President’s desk
September 2019, SAIMC , SAIMC
Jobs and skills of the future are continuously at the forefront of discussions. The impact that Industry 4.0 will have on us all makes us question what the future holds. Automaton is enhancing lives, ...

Read more...