Amprobe DMIII-Multitest Power-Quality-Recorder - Manual (Page 88)

AMPROBE
DMIII MULTITEST
EN-86
16.3. Measurement Of Floor Insulation Resistance In Medical Rooms Cei 64-4
PURPOSE OF THE TEST
Check that the floor is made of material whose insulation resistance complies with the
requirements of the standards CEI 64-4 (3.05.03).
 INSTALLATION PARTS TO BE CHECKED
The test shall be effected between:
a) Two electrodes whose distance to each other shall be one meter.
b) One electrode on the floor and the equalising potential node.
AMPROBE
Measurements of floor insulation resistance in medical rooms
The electrodes shall consist of a plate having a surface of 20 cm 2 , weight equal to
approx. 1 Kg (10N), and a humid absorbing paper ( or humid thin cotton cloth) with
the same surface placed between the metal plate and the floor.
The insulation resistance is represented, both for the measurements indicated in "a"
and for the measurements indicated in "b", by the average of 5 or more tests
effected in different positions at a distance higher than 1 m away from grounded
objects.
Test a):
Connect one test lead of
the instrument to the
equalising potential node
and the other to one of
the electrodes placed on
the floor at a distance
higher than one meter
away
from earthed
objects.
Test b):
Connect the instrument
test
leads to the
electrodes placed on the
floor at a reciprocal
distance of one meter.