Delivery; Intermediate Storage; Installation - ABB VD4 Instruction Manual

Vacuum circuit-breaker with embeded poles
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4.4

Delivery

The duties of the consignee on receipt of
the switching devices at site include the following:
Checking the delivery for completeness
and freedom from damage (e.g. moisture
and itsadverse effects).
Any short quantities, defects or damage
intransit:
- Must be precisely documented on
the consignment note.
- The shipper/carrier is to be notified
immediately in accordance with the
l i a b i l i t y p r o v i s i o n s .
Note:
Always take photographs to document any major
damage.
4.5

Intermediate storage

Intermediate storage of the circuit-breaker unit
in the switch position OFF and the stored-
energy spring mechanisms discharged (Indicator
DISCHARGED:
Conditions for optimum intermediate storage:
1. Devices with basic packaging or unpacked:
A dry and well ventilated storeroom
with climate in accordance with GB/T 11022,
IEC 60694, DIN VDE 0670.
Room temperature which does not fall below
-15˚C.
Do not remove or damage the packaging.
Unpackaged devices:
- Are to be loosely covered with
protective sheeting.
- Sufficient air circulation must be
maintained.
Check regularly for any condensation.
2. Devices with seaworthy or similar packaging
with internal protective sheeting:
Store the transport units:
- protected from the weather,
- dry,
- safe from damage.
Check the packaging for damage.
Check the drying agent
- on arrival of the consignment,
- subsequently at appropriate intervals.
).
5

Installation

(Figures 3/4, 4/1 and 4/2)
Perfect operation of the circuit-breaker depends
on careful and professional handling of
the withdrawable part.
Allocate each unit to the appropriate switchgear
panel in accordance with the switchgear plan
and the rated electrical data.
Remove the transport profile 148 and transport
brackets 147.
Insert the withdrawable part in the switchgear
panel checking for unimpeded motion and
function sequences, including the closing
of primary contacts when the service position
is reached.
Remove any dirt.
When the switchgears are operated in areas
with high humidity and/or major rapid
temperature fluctuations, there is a risk of dew
deposits which must remain an exception in
normal operating conditions Provisions should
be taken according to section 1.3.2 (special
operating conditions).
19

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