Can non-intrinsic instruments be connected using intrinsic cables?
Thread Content
At first, the supplier said that the instruments were intrinsically safe of type E*a IICT6, but when they arrived, they turned out to be explosion-proof of type Exd IICT6. However, we have already prepared all the cables needed, using intrinsically safe cables (the ones with a blue exterior). Has anyone encountered this situation before? Should I re-wire it, or can it be used this way? Urgent! ! ! ! ! ! ! ! ! !
Sure, of course one can wear the clothes of a rich man on a beggar’s body
Intrinsic safety cables have a lower capacitance value; using them in non-intrinsic safety circuits has no impact, so they can be used!
It’s high-quality stuff; it’s just being wasted – it can definitely be used
Sure, it’s just a bit luxurious!
State-owned enterprises generally don’t care too much; they have money anyway
I think it’s best if you don’t use it. In the future, when others see that the cable is blue, they will assume it’s a intrinsically safe instrument and open the cover without shutting off the power – can you imagine what would happen?
Use black heat-shrink tubing to apply black color markers at both ends of the cable, and indicate on the cable label that it is not a intrinsically safe cable.
The simple solution is as mentioned above: it’s best to replace it. I guess the safety barriers in the cabinet area haven’t been removed either?
It’s fine to use it as a marker, but the cabinet needs to have its wiring redone.
In the cable tray, you should run this wire separately from the intrinsically safe wire.