CCP-1100SF
CCP-1100SF
!
WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!
WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!
AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
After correcting the original service problem, perform
the following safety checks before releasing the set to
the customer.
Check that the set does not have leakage current in
excess of 0.5 mA when measured as described below.
All exposed conductive surfaces are to be tested for
leakage currents. The leakage currents from these
surfaces are to be measured to the grounded supply
conductor individually as well as collectively where
simultaneously accessible, and from one surface to
another where simultaneously accessible. These
measurements do not apply to terminals operating at
voltages that are less than 30 volts.
The measurement circuit for the leakage current test is
as described below. The measurement instruments
defined in the following (a)-(d).
a) The meter is to have an input impedance of 1500
ohms resistive shunted by a capacitance of 0.15
microfarad.
b) The meter is indicate 1.11 times the average of the
full wave rectified composite waveform of voltage
across the resistor or current through the resistor.
c) Over a frequency range of 0-100 kilohertz the
measurement circuitry is to have a frequency
response (ratio of indicated to actual value of
current) that is equal to the ratio of the impedance
of a 1500 ohm resistor shunted by a 0.15 microfarad
capacitor to 1500 ohms. At an indication of 0.5
milliampere, the measurement is to have an error of
not more than 5 percent at 60 Hz.
d) Unless the meter is being used to measure current
from one part of the equipment to another, the
meter is to be connected between the accessible
parts and the grounded supply conductor.
The test sequence is as follows:
a) With switch S1 open, the equipment is to be
connected to measuring circuit. Leakage current is
to be measured using both positions of switch S2,
and with the equipment switching devices in all of
their intended operating positions.
b) Switch S1 is then to be closed, energizing the
equipment, and within 5 seconds the leakage
current is to be measured using both positions of
switch S2, and with the equipment switching
devices in all their intended operating position.
c) Leakage current is to be monitored until thermal
stabilization. Both positions of S2 are to be used in
determining this measurement.
Leakage current measurement circuits
Equipment intended for connection to a 120 volt power supply.
Equipment intended for connection to a 3-wire, grounded
neutral power supply, as illustrated above.
Equipment intended for connection to a 3-wire, grounded
neutral power supply, as illustrated above.
A. Probe with shielded lead.
B. Separated and used as clip when measuring currents
from one part of equipment to another.
SAFETY CHECK-OUT
