Intrinsically Safe (IS)
For Intrinsically Safe (IS), stated equivalent is Ex i (Ex ia, Ex ib); meaning is Limit energy below ignition threshold; governing standard / law is IEC 60079-11, verified against its source on 2026-08-11.
- Designation
- Intrinsically Safe (IS) verified
- Stated equivalent
- Ex i (Ex ia, Ex ib) verified
- Meaning
- Limit energy below ignition threshold verified
- Governing standard / law
- IEC 60079-11 verified
What the source says
Intrinsically Safe (IS) | Ex i (Ex ia, Ex ib) | IEC 60079-11 | Limit energy below ignition threshold
— exknowledge.com, retrieved 2026-08-11
Source
- exknowledge.comhttps://exknowledge.com/pages/nec-500-vs-atex-iec.html