Megger PFL22M1500 Series, Руководство пользователя

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M
AVTMPFL22M Rev 1 April 2011
20
Site Preparation
Choose a location that meets the following conditions:

The vehicle (if used) can be safely parked. Set the brakes or block the wheels.

The location is as dry as possible.
 There is no flammable material stored in the vicinity.
 The test area is adequately ventilated.
 Both the High-Voltage conductor and the Shield of the Cable Specimen are
accessible. Be sure all equipment is de-energized. Identify the faulted cable,
obtain access to both ends, and erect safety barriers to protect the operator
from traffic hazards and to prevent intrusion by unauthorized personnel.
Beacon Warning lights are recommended.
 Verify that the station ground is intact and presents an impedance of LESS
than 100 milliohms to earth/ground.
Making Connections
Before operating the PFL22M1500 the following connections and safety
procedures need to be followed.
 Ensure the cable to be tested is Earthed/Grounded and de-energized.
 Connect the Earthing/Grounding cable of the PFL22M1500 to a suitable
Earth/Ground point and the Earth/Ground stud on the PFL22M1500.

Connect the supply cord to the PFL22M1500 and suitable supply.
 Connect the HV Interlock blanking plug (unless using external interlock).
 Connect the detachable HV cable to the PFL22M1500.
 Connect the Sheath of the HV cable to the cable under test.
 Connect the HV connection of the HV cable to the cable under test.

Cordon off a safety zone around instrument and all exposed cable
terminations.
Earth (Ground) the Instrument
Prior to operating the PFL22M1500 or making any other connections the
instrument has to be Earthed/Grounded. This is achieved by connecting the
supplied Green & Yellow Earth /Ground lead to the Earth/Ground terminal on
the side of the instrument directly to a clean metallic Earth/Ground. If in doubt
use an Earth/Ground Tester to confirm status of Earth/Ground. It is not
sufficient just to rely on the supply earth/ground as this may not exist.