ÂItÂs not enough to say ÂHereÂs your hardware, have fun.ÂÂ ICS TriplexÂs Paul Gruhn on the growing need for safety system engineering, integration and technical services. |
So what are the trends Gruhn sees for the future of safety system design? ÂSmaller, distributed systems, he said. ÂThere are a lot of applications where a large, monolithic system that is scaleable to thousands of points just isnÂt required.Â
ÂWe are beginning to see the development and implementation of safety fieldbuses from Fieldbus Foundation, Profibus Trade Organization, and the HART Foundation, he said, Âand we are seeing integration of the basic process control system with the safety systemÂnot by using the same products, but at the vendor level. People are demanding that the DCS vendor integrate the safety system from one single vendor.Â
ÂWe are also seeing a demand for personnel with certifications, Gruhn added. ÂThere are several certifying bodies right now, from TUV to a consulting company, and ISA is developing a certification program for safety expertise, Gruhn revealed.
ÂWe are starting to see a movement back to using safety systems for what they were originally forÂcritical process control, Gruhn said. That is, processes like nuclear fuel rod control, nuclear waste disposalÂthose applications where there are large economic or safety concerns where downtime is not feasible, and where significant capital losses and image or reputation damage could occur in case of accident.
Finally, he said, there is a developing market for engineering, integration and technical services. ÂIt isnÂt enough anymore to say, ÂHereÂs your hardware, have fun,ÂÂ Gruhn said.
Gruhn quoted Nancy Leveson of MIT and the Baker Commission on the fact that proper regard for safety in design actually pays for itself with up to 50% less downtime and other productivity gains. He also quoted noted failure expert Trevor Kletz on how to design safe systems: ÂWhat you donÂt have canÂt leak.Â
ÂThereÂs one way to ignore all the standards and still have a safe plant, Gruhn concluded. ÂAll you have to do is do what the French did 200 years ago, and the DuPont family brought to the original gunpowder business. They passed a law that required the manufacturer to live on the premises. Gruhn paused, then continued, Âwith his family.Â