Specifications

B-field Exposure From Induction Cooking Appliances 54
6.1.3 Appliance 2
Single-hob measurement using the standard set of pots Figure 41 shows the B-field
measured in the vicinity of appliance 2, with hob 2 switched on using pot 3 (standard set of pots)
centered (front side measurement). The B-field does not exceed the ICNIRP limit (6.25 µT) for
a measuring distance of 30 cm, according to EN50366. The limit is not even exceeded at 1 cm
off the edges of the appliance.
Figure 41: Appliance 2, single-hob measurement using the standard set of pots:
Hob 2 (largest) is switched on, with pot 3 centered (front side measurement). The B-field
was measured in the vertical plane (y, z) at measuring distances a) 1 cm and b) 30 cm; other
measuring conditions according to EN50366.
Multi-hob measurement using the standard set of pots Figures 42 and 43 depict the
B-field measured in the vicinity of appliance 2 (multi-hob measurement using the standard set
of pots centered and non-centered, respectively) with hobs 1, 2, 3 and 4 simultaneously switched
on (multi-hob measurement) using the standard set of pots (pots 14a, 3, 14b and 13 on hobs 1, 2,
3 and 4, respectively). The B-field does not exceed the ICNIRP limit (6.25 µT) for a measuring
distance of 30 cm, according to EN50366.
However, the maximum rms-values of the B-field measured at the front side of the appliance
are 2.5 µT and 8.5 µT for a centered and non centered pots, respectively (measuring distance
of 1 cm, see Figures 42 a) and 43 a). Figures 42 c), e) and g) (pots centered) show that the
ICNIRP limit is exceeded for a measuring distance of 1 to 5 cm. The corresponding maximum
rms-values of the B-field measured are 13.5 µT, 9 µT and 7 µT for the rear, left and right sides
of the appliance, respectively. Figure 43 also shows that when the pots are non-centered, the
ICNIRP limit is exceeded for a measuring distance ranging from 1 to 5 cm.
Single-hob measurement using pot 8, worst-case set of pots Figure 44 shows the B-
field measured in the vicinity of appliance 2 with hob 2 switched on (single-hob measurement)
using the worst-case pot 8. The B-field does not exceed the ICNIRP limit (6.25 µT) for a
measuring distance of 30 cm, according to EN50366.
Figures 44 a), (pot centered), e) and f) (pot non-centered) show that the ICNIRP limit is
exceeded for measuring distances of 1 to 5 cm and 5 to 10 cm when the pot is centered and
non-centered, respectively. The corresponding maximum rms-values of the B-field measured are
7.5 µT and 16 µT (measuring distance of 1 cm).