Service
Edition: 02
2 - 12
accuSpin
1R
17.11.03 He/Ha
2.7 Electrical Safety Check
ATTENTION!
A final electrical safety check must be performed after each maintenance and/or
repair!
•
Resistance check of protective conductor
The measuring value of the resistance between the mains plug's grounding pin and the
grounding conductors of the motor, electronic chassis and the casing must not exceed
200 mO
•
Insulation resistance Check
Check also the insulation resistance between the poles of the mains plug and the
grounding conductor; the resistance value must be more than 2 MO
•
Accessible current measured to EN 61 010
The accessible current must not exceed 3.5 mAmps in single fault condition (interrupted
protection earth wire)! In accordanceEN61010, IEC1010 and UL3101 such a fault
condition can be reproduced by the following measuring circuit.
500
Ω
±1%
L (N)
N (L)
PE
10k
Ω
±5%
0,022µF
±5%
V
AC
0,22µF
±5%
Steckergehäuse / plug-in casing
Spezifaktionen für Meßgerät
- TRMS, DC - 5kHz oder mehr
- Eingangswiderstand > 1M
- Toleranz 5% oder besser
- Crest Faktor 5 oder besser
Ω
Specifaction for the meter
- TRMS, DC - 5kHz or more
- Input resistance > 1M
- Tolerance 5% or better
- Crest Factor 5 or better
Ω
Körperstrom:
accessible current:
I [mA] = U [mV] / 500:
U = 1750mV I = 3,5mA
max
max
≡
