Dears,
I recently took charge of reviewing all descriptions of materials (trying to remove duplicates & dummies) on Site Requisitions. I noticed 2 different descriptions:

MINERAL INSULATED CABLE, 230 V, 700 °C, 10400 OHM/KM, DUAL, ALLOY 825, Ex e II
MINERAL INSULATED CABLE, 230 V, 700 °C, 10400 OHM/KM, DUAL, ALLOY 825, EEx e II

According to an electrical engineer, he "supposes" the EEx is a typo error and the Explode protection is only to be Ex, is it correct? I found so many EEx in Mineral Insulated descriptions that I am being a bit reluctant to getting rid of it from our catalog.

I really appreciate if someone can help. Thank you.

 

You need to consult the electrical standards such as NEMA

 

@gps82...
The high resistance indicates to me that perhaps its used for heating concrete slabs for plazas or the like!
I used something like it in 1962 for the Pay-Plaza of the Verrazzano Bridge in New York City!
Phil Corso

 

Mineral insulated (MI) Alloy 825 heating cable PRODUCT SPECIFICATIONS Technical Details Cable sheath material Alloy 825 Conductor material Various alloys and copper Max. exposure temperature 550°C (brazed heating units) 600°C* (laser welded heating units)

The original post might explain what sort of heating he is using in his plant