Operation Manual

Nokia MetroSite GSM Base Station, Requirements for Installation and Operation
14 (38) © Nokia Networks Oy Internal Copy DN9913471
Issue 1 en DRAFT 2 Draft
Table 3. Climatic conditions for operation (Class 4.1, partly extended)
Environmental
parameter
Class 4.1 value
Extended value for Nokia
MetroSite BTS
Low air temperature -33°C
-27°F
-40 °C
-40 °F
High air temperature 40 °C
104°F
50 °C
122 °F
Low relative humidity 15% -
High relative humidity 100% -
Low absolute humidity
0.26 g/m
3
0.03 g/m
3
High absolute humidity
25 g/m
3
36 g/m
3
Rain intensity 6 mm/min
0.24 in/min
-
Temperature change rate
(average of 5 minutes)
0.5 °C/min.
0.9 °F/min
-
Low air pressure 70 kPa
10.15 psi
-
High air pressure 106 kPa
15.37 psi
-
Solar radiation
1120 W/m
2
-
Heat radiation insignificant -
Surrounding air movement 50 m/s
164 ft./s
-
Conditions of
condensation
yes -
Conditions of precipitation
(rain, snow, hail etc.)
yes -
Low rain temperature 5 °C
41 °F
-
Conditions of water from
sources other than rain
splashing water -
Conditions of icing and
frosting
yes -