TI50A DC Power Supply
13
3
Operating Procedures
3.7 – Environmental
If the unit is exposed to moisture, preventive measures and precautions shall be taken to:
A. Prevent accumulation of moisture on ac and dc connectors/receptacles
B. Minimize moisture entering forward inlet and aft outlet cooling fan vent ports
Unit inlet and outlet vent ports shall be covered from exposure. Unit shall be kept horizontal.
Recommendations include a Protective Rain Cover to guard the unit from moisture (see Section 8). The limits
and operational constraints listed below shall apply for the following environmental (weather) conditions:
WARNING
Operating any electrical equipment in the presence of moisture creates
possible safety hazards and/or potential for equipment damage. Every
effort has been made, within the scope of existing technology to prevent
foreseeable safety hazards and make the unit moisture resistant to prevent
damage or failure.
Conditions
With
Raincover
Without Raincover
Heavy or steady rain:
Precipitation falling with an intensity in excess of 0.30 inch
(0.76 cm) or continuously between 0.30 and 0.10 inch per hour.
OK
OPERATION NOT RECOMMENDED
Light rain, drizzle or sleet:
Precipitation falling on a continuous basis between 0.10 inch
and less than 1/50 inch (0.5 mm) per hour
OK
DC OPERATIONS ONLY
Heavy or steady snow:
Generally meaning an accumulation between 4 inches and less
than 1 inch in a 12 hour period.
OK
OPERATION NOT RECOMMENDED
Light snow:
Snow falling intermediately with little or no accumulation.
OK
DC OPERATIONS ONLY
Fog:
OK
OK
3.7 – Environmental
If the unit is exposed to signifi cant moisture, preventive measures and precautions shall be taken to:
A. Prevent accumulation of moisture on ac and dc connectors/receptacles
B. Minimize moisture entering forward inlet and outlet cooling fan vent ports
When not in use, unit inlet and outlet vent ports shall be covered from exposure. Unit shall be kept
horizontal.
WARNING
Operating any electrical equipment in the presence of moisture creates possible
safety hazards and/or potential for equipment damage. Every effort has been
made, within the scope of existing technology to prevent foreseeable safety
hazards and make the unit moisture resistant to prevent damage or failure.
3.4 – Environmental
Figure 3.4.1 – Unit with raincover. Ordering info on page 24.
