Chapter Action Levels – non-thermal effects
Table AL1 - ALs for exposure to electromagnetic fields from 1 Hz to 10 MHz
| Frequency range | External electric field strength Low ALs (E) [Vm-1] | External electric field strength High ALs (E) [Vm-1] |
|---|---|---|
| 1 ≤ f < 25 Hz | 2.0 × 104 | 2.0 × 104 |
| 25 ≤ f < 50 Hz | 5.0 × 105/f | 2.0 × 104 |
| 50 Hz ≤ f < 1.64 kHz | 5.0 × 105/f | 1.0 × 106/f |
| 1.64 ≤ f < 3 kHz | 5.0 × 105/f | 6.1 ×102 |
| 3 kHz ≤ f ≤ 10 MHz | 1.7 × 102 | 6.1 ×102 |
| Exposure levels not exceeding the ALs will be compliant with: | Tables ELV2 and ELV3 | |
Table AL2 - ALs for exposure to electromagnetic fields from 1 Hz to 10 MHz
| Frequency range | Magnetic flux density Low ALs (B) [µT] | Magnetic flux density High ALs (B) [µT] | Magnetic flux density ALs for exposure of limbs to a localised magnetic field (B) [µT] |
|---|---|---|---|
| 1 ≤ f < 8 Hz | 2.0 × 105/f2 | 3.0 × 105/f | 9.0 × 105/f |
| 8 ≤ f < 25 Hz | 2.5 × 104/f | 3.0 × 105/f | 9.0 × 105/f |
| 25 ≤ f < 300 Hz | 1.0 × 103 | 3.0 × 105/f | 9.0 × 105/f |
| 300 Hz ≤ f < 3 kHz | 3.0 × 105/f | 3.0 × 105/f | 9.0 × 105/f |
| 3 kHz ≤ f ≤ 10 MHz | 1.0 × 102 | 1.0 × 102 | 3.0 × 102 |
| Exposure levels not exceeding the ALs will be compliant with: | At and below 400 Hz: the sensory effect ELVs in Table ELV3 | The health effect ELVs in Table ELV2 | |
| Above 400 Hz: the health effect ELVs in Table ELV2 | |||