MOORE INDUSTRIES (2016) Associated Apparatus The Safe and Most Affordable IS Solution
MOORE INDUSTRIES (2016) Associated Apparatus The Safe and Most Affordable IS Solution

Signifi cant savings, both initial installation and ongoing maintenance costs, for your
intrinsically-safe (IS) facility or project can be achieved by selecting associated
apparatus as the IS barrier in your system.
Preventing explosions and fi res in hazardous areas caused by process measurement
and control instrumentation has historically followed either the path of containing the
explosion within the device enclosure or preventing the device from having enough
energy to cause a spark or thermal ignition. In North America the predominant choice
has been to use explosion-proof equipment while the rest of the world typically employs
energy limiting Intrinsic Safety devices.
Although there has been some resistance to change from the familiar explosion-proof
approach in North America, engineers have recognized the cost savings and advantages
of an IS design, leading to wider acceptance of IS. Additionally, globalization of many
corporate structures often leads to standardization of plant designs that are the best
economic fi t on a global basis and these designs frequently require use of IS technology.
This whitepaper provides a brief introduction to intrinsic safety, the different components
in an intrinsically-safe system and the two different types of barriers. Additionally this
paper outlines why selecting an associated apparatus as the IS barrier provides the
most economic and effective use of IS technology. The techniques outlined in this paper
are most applicable to the industrial process control sector including such industries as
oil and gas production, oil refi ning, petrochemical, chemical, pharmaceuticals, food &
beverage, and pulp & paper.

MOORE INDUSTRIES (2016) Associated Apparatus The Safe and Most Affordable IS Solution

MOORE INDUSTRIES (2016) Associated Apparatus The Safe and Most Affordable IS Solution
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