IG-284-EN version 03; 06/05/2020
14
Storage
General Instructions
cgm
.800: Medium-voltage switchgear with integrated insulation in SF
6
gas
up to 36 kV in accordance with IEC Standard with rated current up to 800 A
3. Storage
If it needs to be stored, the equipment must be placed on
dry ground or on top of damp-proof insulating material, still
in its original packaging.
After prolonged storage, clean all the insulating parts
carefully before commissioning the equipment. The
enclosure should be cleaned with a clean, dry lint-free cloth.
Figure 3.1.
Storage
Storage must always be INDOORS, with the following
conditions recommended:
1.
Ambient air temperature should not exceed 40 ºC
and its mean value, measured in a period of 24 hours,
must not exceed 35 ºC.
2.
The ambient air temperature should not drop below
- 5 °C. There are also cubicles with storage temperature
up to - 40 °C.
3.
The switchgear must be protected from direct solar
radiation.
4.
Altitude, both in transport and in storage, must not
exceed 2000 m.
5.
The environmental air must not have any signifi cant
contamination from dust, smoke, corrosive and/or
infl ammable gases, vapours or salt.
6.
The switchgear must be protected from the rain, and
the humidity conditions should be as follows:
a.
The mean relative humidity value, measured over a
period of 24 hours, must not exceed 95 %.
b.
The mean water steam pressure value, measured in
a period of 24 hours, must not exceed 2.2 kPa.
c.
The mean relative humidity value, measured over a
period of one month, must not exceed 90 %.
d.
The mean water steam pressure value, measured
over a period of one month, must not exceed
1.8 kPa.
7.
During transport, vibrations caused by external factors
or seismic movements must be insignifi cant.
Any other conditions must be notifi ed beforehand,
since the equipment must be factory-adjusted to the
atmospheric pressure. Otherwise, the needle may
indicate an incorrect value (red scale), even though
the value of the equipment internal pressure is correct.
Otherwise, the manometer needle may indicate
an incorrect value, even if the equipment's internal
pressure is correct.
Summary of Contents for velatia cgm.800
Page 71: ......