Testing of Intrinsically safe bariers
Testing of Intrinsically safe bariers
(OP)
I do not have a lot of experience with I.S. Barriers.
My question is fairly simple.
Should you test I.S. Barrier?
How frequently should you test them?
What is the testing procedure for one?
Thank you for all your responses.
Sincerely,
Dan
My question is fairly simple.
Should you test I.S. Barrier?
How frequently should you test them?
What is the testing procedure for one?
Thank you for all your responses.
Sincerely,
Dan





RE: Testing of Intrinsically safe bariers
No special maintenance of intrinsically safe systems is required. Once a year the barriers should be checked to ensure that the connections are tight, the ground wiring has less then one ohm of resistance, and the barriers are free from moisture and dirt. Check the panel and conduits for separation and identification of the intrinsically safe wiring. Never test the barrier with an ohmmeter or other test instrument while it is connected in the circuit (see figure 11). This bypasses the barrier and could induce voltages into the intrinsically safe wiring.
entire I/S article here:
http://www.iaei.org/magazine/?p=3053
RE: Testing of Intrinsically safe bariers
Keith Cress
kcress - http://www.flaminsystems.com
RE: Testing of Intrinsically safe bariers
RE: Testing of Intrinsically safe bariers
Article from IAEI is exactly what I was looking for.
Once again, Thank you.