October 9, 2021

Every now and then you may need to use a Class 1E-qualified isolation device for instrumentation and control circuits.

In the progressively more digital I&C future, this will become more important.

Here is an example test report from a PLC module used as such an isolator:

Triconix Module Class 1E Test Report

There isn't much hard data in the report, but it's good to review and get an idea for how IEEE 384 isolation requirements are demonstrated in test plans. 

Sincerely,

John "Isolated" Livingston
Editor
www.NuclearElectricalEngineer.com