Intel SC5299WS User Manual

Page of 154
Intel
®
 Entry Server Chassis SC5299-E TPS 
Power Sub-system 
Revision 3.1 
 
 
Intel order number D37594-005 
31
2.2.2.8 
AC Line Isolation Requirements 
The power supply meets all safety agency requirements for dielectric strength. Transformers’ 
isolation between primary and secondary windings complies with the 3000Vac (4242Vdc) 
dielectric strength criteria. In addition, the insulation system complies with reinforced insulation 
per safety standard IEC 950. Separation between the primary and secondary circuits, and 
primary to ground circuits, complies with the IEC 950 spacing requirements. 
2.2.2.9 
AC Line Leakage Current 
The maximum leakage current to ground for each power supply is 3.5mA when tested at 
240VAC. 
2.2.2.10 
AC Line Fuse 
The power supply has a single line fuse on the line (hot) wire of the AC input. The line fusing is 
acceptable for all safety agency requirements. The input fuse is a slow blow type. AC inrush 
current does not cause the AC line fuse to blow under any conditions. All protection circuits in 
the power supply do not cause the AC fuse to blow unless a component in the power supply has 
failed. This includes DC output load short conditions. 
2.2.2.11 
Power Factor Correction 
The power supply incorporates a Power Factor Correction circuit.  
 
The power supply is tested as described in EN 61000-3-2: Electromagnetic Compatibility (EMC) 
Part 3: Limits - Section 2: Limits for harmonic current emissions, and meets the harmonic 
current emissions limits specified for ITE equipment. 
 
The power supply is tested as described in JEIDA MITI Guideline for Suppression of High 
Harmonics in Appliances and General-Use Equipment and meets the harmonic current 
emissions limits specified for ITE equipment. 
2.2.3 
Efficiency 
The following table provides the required minimum efficiency level at various loading conditions. 
These are provided at three different load levels: 100%, 50% and 20%. Efficiency is tested over 
an AC input voltage range of 115VAC to 220VAC. 
Table 28. Efficiency 
Loading 
100% of Maximum 
50% of Maximum 
20% of Maximum 
Recommended Efficiency 
70% 
72% 
65% 
2.2.4 
DC Output Specifications 
2.2.4.1 
Output Connectors 
Listed or recognized component appliance wiring material (AVLV2), CN, rated minimum 105 
degrees C , 300VDC is used for all output wiring.