User manual

Specifications 35
Emerson Energy Systems MFA150 Power System  NT6C28C User Manual
Transportation
Note: Do not ship with the rectifiers installed in the rectifier
framework(s).
During transportation the equipment may be subjected to the following
conditions without damage:
• Temperature: -50° to +75°C (-58° to +167°F)
• Humidity: 0 to 95% (non condensing) 4kPa max. WVP for 10 days
• Vibration: GR-63-CORE section 5.4.3 Transportation
Vibration-Packaged Equipment
• Shock: GR-63-CORE, Section 5.3.1 Handling Drop
Tests-Packaged Equipment and section 4.4.4 Transportation
Vibration Criteria
Storage
• Temperature: -50° to +75°C (-58° to +167°F)
• Humidity: 0 to 95% (non condensing) 4kPa maximum WVP for 10
days
Heat dissipation
An MFA150 power system equipped with 7 Helios Rectifiers 25/48 will
dissipate a maximum of 1,092 watts or 3,729 Btu/hr.
An MFA150 power system framework equipped with 4 Helios Rectifiers
50/48 will dissipate a maximum of 1,520 watts or 5,190 Btu/hr.
Floor and point loading
The floor and point loading calculations in Table 17 are based on the total
weight without batteries in Table 16.
The floor loading is based on a footprint of 24.38 inches by 15 inches
( 61.92 cm by 38.1 cm ) plus a 30-inch ( 76.2 cm ) aisle width (15 inches
[ 38.10 cm ] front and rear).
The point loading is based on distributing the framework weight over four
shims, each with an assumed area of 4 inches
2
( 25.8 cm
2 )
.
Table 17 – Floor and point loading of a complete NT6C28C(x) MFA150
Rack type Floor loading Point loading
Standard 39.4 lb/sq ft
( 17.9 kN/sq m )
18.75 lb/sq inches
( 12.9 N/sq cm )