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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 |
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.
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 |
The AL for interference with active implanted medical devices represents the maximum field value at any place where an employee may be working.
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