Dominion PX Quick Setup Guide
3
QSG-DPX-0F-E
y
255-80-6081-00
Testing
All PDU's are fully tested and verified to conform to the
required standards. Where further system wiring is carried
out, or where the modules are integrated into larger systems,
the entire installation must be tested prior to use as prescribed
by national wiring regulations.
For compliance with certain standards, the installer must test
the complete electrical installation prior to use, and, in general
use, the products should be subject to regular checking. The
frequency of the electrical and visual checks will depend on
the nature of the use to which the PDU is put and as such the
test frequency must be determined by the installer. Guidelines
for normal tests are given below.
Earth Continuity
A current of 25 amps should be passed from an alternating
current (AC) source with a no-load voltage not exceeding 12V,
between the earth conductor of the power supply cord and the
earth connection of the outlet sockets. This test should be
repeated for metal parts surrounding the installation, which
should be earthed.
Where the power cord specified exceeds 3M the 100m
Ω
limit
common on many PAT testers may be exceeded. This does
not mean the product has failed. The length of the cord should
be checked and the appropriate allowance made.
Conductor Continuity and Polarity
The system should be checked to ensure correct polarity and
continuity of all wiring.
Insulation Resistance
The insulation resistance between LINE/NEUTRAL and
EARTH should be measured using a 500VDC. test supply.
The measured resistance should not be less than 1.0M
Ω
.
Flash Test
A flash voltage of 1500VAC between LINE/NEUTRAL and
EARTH should exhibit a leakage of under 1mA. Note: where
the power cord exceeds 3M, the unit may exhibit higher
leakage. The appropriate allowance should be made.
Both insulation and flash testing may ONLY be carried out LN-
E. Testing between L-N may give erroneous results due to the
Neon indicator (if fitted).
Notes on units with integral filters
Units with integral filter systems may be LN-E insulation
tested at 500VDC but if flash tested at 1500VAC, they will
exhibit high leakage readings under insulation tests due to the
nature of the filtering components.
The quiescent earth leakage of the filter unit under normal
conditions may be checked and should not exceed 0.9mA at
250V~ 50Hz.
L to N flash and insulation tests would be inconclusive due to
the presence of the filter system and may damage the surge
suppression circuitry.
Uses
This system has been designed to conform to the latest safety
requirements. In addition to compliance with standards for
general use, this PDU has been factory configured for use in
19” rack mounting environments. This does NOT preclude
their use in other situations.
Safety Precations
Ensure all equipment is unplugged before carrying out any
testing.
Testing of this nature should only be carried out by suitably
qualified individuals.
CAUTION: USE ONLY IN DRY LOCATIONS / ATTENTION:
UTILISER UNIQUEMENT DANS DES EMPLACEMENTS
SECS
THE INFORMATION GIVEN IN THIS LEAFLET IS SUBJECT
TO CHANGE WITHOUT NOTICE. ANY GUIDANCE NOTES
ARE GIVEN WITH REGARDS TO COMPLYING WITH
SPECIFIC STANDARDS ARE PROVIDED AS AN AID TO
THE INSTALLER AND ARE INTERPRETATIONS OF THOSE
STANDARDS ONLY.
THESE INSTRUCTIONS ARE PRIMARILY INTENDED TO
PROVIDE DETAILS ON THE SAFE USE AND
INSTALLATION OF THE ABOVE MAINS DISTRIBUTION
SYSTEM.
NOTICE: FOR PLUGGABLE EQUIPMENT, THE SOCKET
OUTLET SHALL BE INSTALLED NEAR THE EQUIPMENT
AND SHALL BE EASILY ACCESSIBLE. THE PRODUCT
MUST BE INSTALLED BY A QUALIFIED ELECTRICIAN IN
ACCORDANCE WITH NATIONAL AND LOCAL
ELECTRICAL CODES.
