Technical Product Specification

Power Subsystem Intel
®
Server System R1000RP Family TPS
Intel order number: G91532-003 Revision 1.3
16
dielectric strength criteria. If the working voltage between primary and secondary dictates a
higher dielectric strength test voltage, the highest test voltage should be used. In addition, the
insulation system must comply with reinforced insulation as per safety standard IEC 950.
Separation between the primary and secondary circuits, and primary to ground circuits, must
comply with the IEC 950 spacing requirements.
3.1.4.4 AC Line Dropout/Holdup
An AC line dropout is defined when the AC input drops to 0VAC at any phase angle of the
nominal AC line voltage. An AC line dropout less than 12ms shall not cause any tripping of
control signals or protection circuits for 350W output. If the AC line dropout over 12ms, the
power supply should recover back to normal operation and meet all turn on requirements. Any
dropout of the AC line shall not cause damage to the power supply.
3.1.4.5 AC Line Fuse
The power supply should have one line fused in the single line fuse on the line (Hot) wire of the
AC input. The line fusing must be acceptable for all safety agency requirements. The input fuse
should be a slow blow type. AC inrush current must not cause the AC line fuse to blow under
any conditions. All protection circuits in the power supply should not cause the AC fuse to blow
unless a component in the power supply has failed. This includes DC output load short
conditions.
3.1.4.6 AC Inrush
The peak inrush current must not damage the PSU, or the input fuse must not blow under any
conditions of load, temperature, and input voltage, including repeated, rapid cycling of the power
line. Half cycle peak inrush current, peak repetitive input current, and worse case power factor
must be provided by the vendor to assist with the UPS and line conditioning, sizing, and
selection. No component will be stressed over its maximum specification. This must be
demonstrated through measurements of the critical component specifications. The peak inrush
current shall be less than 55A peak at 115VAC input and 230VAC input, cold start and 25°C.
3.1.4.7 AC Line Leakage Current
The maximum leakage current to ground shall be less than 1.0mA-rms at 240Vac, 50Hz.
3.1.4.8 AC Line Transient Specification
The AC line transient conditions are defined as sag and surge conditions. Sag conditions are
also commonly referred to as “brownout”. Sag conditions are defined as the conditions when the
AC line voltage drops below nominal voltage. Surge conditions are defined as the conditions
when the AC line voltage rises above nominal voltage.
The power supply must meet the requirements under the following AC line sag and surge
conditions.
Table 8. AC Line Sag Transient Performance
AC Line Sag (10sec interval between each sagging)
Duration
Sag
Operating AC Voltage
Line Frequency
Performance Criteria
Continuous
10%
Nominal AC Voltage ranges
50/60Hz
No loss of function or performance