Intel SC5299WS User Manual
Intel
®
Entry Server Chassis SC5299-E TPS
Power Sub-system
Revision 3.1
Intel order number D37594-005
93
The power supply complies with the limits defined in EN55024: 1998 using the IEC 61000-4-
5:1995 test standard and performance criteria B defined in Annex B of CISPR 24.
5:1995 test standard and performance criteria B defined in Annex B of CISPR 24.
2.5.7.9
AC Line Leakage Current
The maximum leakage current to ground for each power supply is 3.5mA when tested at
240VAC.
240VAC.
2.5.7.10
AC Line Transient Specification
AC line transient conditions are defined as “sag” and “surge” conditions. “Sag” conditions are
also commonly referred to as “brownout”; these conditions will be defined as the AC line voltage
dropping below nominal voltage conditions. “Surge” will be defined to refer to conditions when
the AC line voltage rises above nominal voltage.
also commonly referred to as “brownout”; these conditions will be defined as the AC line voltage
dropping below nominal voltage conditions. “Surge” will be defined to refer to conditions when
the AC line voltage rises above nominal voltage.
The power supply meets the requirements under the following AC line sag and surge conditions.
Table 114. AC Line Sag Transient Performance
Duration
Sag
Operating AC Voltage
Line Frequency
Performance Criteria
Continuous
10%
Nominal AC Voltage
ranges
ranges
50/60Hz
No loss of function or performance
0 to 1 AC
cycle
cycle
95%
Nominal AC Voltage
ranges
ranges
50/60Hz
No loss of function or performance
> 1 AC cycle
> 30%
Nominal AC Voltage
ranges
ranges
50/60Hz
Loss of function acceptable, self
recoverable
recoverable
Table 115. AC Line Surge Transient Performance
Duration
Surge
Operating AC Voltage
Line Frequency
Performance Criteria
Continuous
10%
Nominal AC Voltages
50/60Hz
No loss of function or performance
0 to ½ AC
cycle
cycle
30%
Mid-point of nominal AC
Voltages
Voltages
50/60Hz
No loss of function or performance
2.5.7.11
AC Line Fast Transient (EFT) Specification
The power supply meets the EN61000-4-5 directive and any additional requirements in
IEC1000-4-5: 1995 and the Level 3 requirements for surge-withstand capability, with the
following conditions and exceptions:
IEC1000-4-5: 1995 and the Level 3 requirements for surge-withstand capability, with the
following conditions and exceptions:
These input transients do not cause any out-of-regulation conditions, such as overshoot
and undershoot, nor do they cause any nuisance trips of any of the power supply
protection circuits.
and undershoot, nor do they cause any nuisance trips of any of the power supply
protection circuits.
The surge-withstand test must not produce damage to the power supply.
The supply meets surge-withstand conditions under maximum and minimum DC-output
load conditions.
load conditions.