When installing a purged control panel or industrial HMI in a hazardous location, power supplied to the control panel must be regulated so that components are not energized before the panel is protected by a purge cycle.
The award marks the 13th consecutive year for the top purge award
In the categories of Purge and Intrinsic Safety, Pepperl+Fuchs has steadfastly dominated opinion polls by readers of two of the industry’s leading publications. This year, Pepperl+Fuchs once again was voted best provider of intrinsic safety and industrial enclosure purge systems by Control magazine in its 2016 Readers’ Choice survey.
What is intrinsic safety?
The best form of protection is prevention. So when it comes to electricity, low voltage and current flow is the way to go.
Keeping people and equipment safe is a top priority for anyone who works with electrical equipment in a hazardous area. Intrinsic safety is key. An intrinsically safe system is one in which the current and voltage are kept so low that there is not enough energy to produce arcs, sparks, flames, or explosions.
Whether you’re controlling a manufacturing process with a computer, distributed control system (DCS), programmable logic controller (PLC), or field device—surge protection barriers reduce or eliminate the risk to your equipment from lightning strikes and other harmful transient voltage or surge currents.
Below are four types of surge protection solutions, designed for a variety of applications. The common pattern you will see is that for field devices, you need to combine two different types of modules to provide protection. In contrast, a computer, DLC, or PLC requires only a surge protector.
Topics: Intrinsic Safety
Have you or are you still thinking about taking that leap of faith to intrinsic safety? With current and voltage limited to levels below that which can cause an ignition, a 50% safety factor even under fault conditions, and the ability to wire in accordance with general purpose wiring methods, there shouldn’t be another thought. But wait. What about my field device?
In the article 'Choosing Your Intrinsic Safety Device', by Aaron Hand, Executive Editor, Automation World, find out what you need to know about the other half of the intrinsic safety equation.
If, after reading this article, intrinsic safety sounds like something you would be interested in learning more about, we're here to help. What questions do you have?
Topics: Intrinsic Safety
Tired of so many different hazardous location wall charts lining your office walls? One for NEC, then one for ATEX, then another one for IECEx, and yet still another for SIL. Just like with most business, it helps when you can one-stop shop; find everything you need at a single supplier. Shouldn’t getting the information you want about hazardous locations be the same?
A few weeks back, an interesting question came in from a customer regarding an article that I wrote about intrinsic safety. Here's a link to the article, "Intrinsic Safety 101 - Hazardous Locations."
Zener Barriers with blown fuses, blinking error lights, and IS barriers in a Class I, Div. 2 area...
Are you ready to learn more about intrinsic safety? This is our second installment of Ask an Expert, where we sit down with a product expert and answer questions from customers like you.
In this post, we will discuss the difference between lightning and surge, briefly cover the lightning and surge protection standard, and finally show a couple of Pepperl+Fuchs options for surge protection devices (SPD).
To answer the question of whether you need to use an isolated barrier device with your sensor, it’s helpful to first answer the following two questions: