PART 3INDIRECT EFFECTS OF EXPOSURE
Action Levels – non-thermal effects
Table AL5 - ALs for contact currents
| Frequency of electromagnetic field in which an object is present | Contact current ALs (IC) [mA] |
|---|---|
| up to 2.5 kHz | 1.0 |
| 2.5 ≤ f < 100 kHz | 0.4 f |
| 100 ≤ f ≤10,000 kHz | 40 |
Notes
1. “f” is the frequency expressed in kHz.
2. The ALs are root mean square values.
3. The ALs represent the maximum steady state current created during a continuous contact with an object in an electromagnetic field.
Table AL6 - ALs for static magnetic fields
| Potential indirect effect | Magnetic flux density ALs (B0) [mT] |
|---|---|
| Interference with active implanted medical devices | 0.5 |
| Attraction and projectile risk in the fringe field of high field strength sources (> 100 mT) | 3 |
Note
The AL for interference with active implanted medical devices represents the maximum field value at any place where an employee may be working.
Action Levels – thermal effects
Table AL7 - AL for contact currents
| Frequency of electromagnetic field in which an object is present | Contact current ALs (IC) [mA] |
|---|---|
| 100 kHz ≤ f < 110 MHz | 40 |
Notes
1. The AL is a root mean square value.
2. The AL represents the maximum steady state current created during a continuous contact with an object in an electromagnetic field.