Intel R2000BB4GS9 データシート
Intel
®
Server System R2000BB Product Family TPS
Revision 2.0
19
3.7.3
AC Line Isolation Requirements
The power supply shall meet all safety agency requirements for dielectric strength. Transformers’ isolation
between primary and secondary windings must comply with the 3000Vac (4242Vdc) 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
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.
between primary and secondary windings must comply with the 3000Vac (4242Vdc) 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
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.
3.7.4
AC Line Dropout / Holdup
An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC line for any
length of time. During an AC dropout the power supply must meet dynamic voltage regulation requirements.
An AC line dropout of any duration shall not cause tripping of control signals or protection circuits. If the AC
dropout lasts longer than the hold up time, the power supply should recover and meet all turn on requirements.
The power supply shall meet the AC dropout requirement over rated AC voltages and frequencies. A dropout
of the AC line for any duration shall not cause damage to the power supply.
length of time. During an AC dropout the power supply must meet dynamic voltage regulation requirements.
An AC line dropout of any duration shall not cause tripping of control signals or protection circuits. If the AC
dropout lasts longer than the hold up time, the power supply should recover and meet all turn on requirements.
The power supply shall meet the AC dropout requirement over rated AC voltages and frequencies. A dropout
of the AC line for any duration shall not cause damage to the power supply.
Loading
Holdup time
70%
12msec
3.7.4.1
AC Line 12VSBHoldup
The 12VSB output voltage should stay in regulation under its full load (static or dynamic) during an AC dropout
of 70ms min (=12VSB holdup time) whether the power supply is in ON or OFF state (PSON asserted or de-
asserted).
of 70ms min (=12VSB holdup time) whether the power supply is in ON or OFF state (PSON asserted or de-
asserted).
3.7.5
AC Line Fuse
The power supply shall have one line fused in the single line fuse on the line (Hot) wire of the AC input. The
line fusing shall be acceptable for all safety agency requirements. The input fuse shall be a slow blow type. AC
inrush current shall not cause the AC line fuse to blow under any conditions. All protection circuits in the power
supply shall not cause the AC fuse to blow unless a component in the power supply has failed. This includes
DC output load short conditions.
line fusing shall be acceptable for all safety agency requirements. The input fuse shall be a slow blow type. AC
inrush current shall not cause the AC line fuse to blow under any conditions. All protection circuits in the power
supply shall not cause the AC fuse to blow unless a component in the power supply has failed. This includes
DC output load short conditions.
3.7.6
AC Inrush
AC line inrush current shall not exceed 55A peak, for up to one-quarter of the AC cycle, after which, the input
current should be no more than the specified maximum input current. The peak inrush current shall be less
than the ratings of its critical components (including input fuse, bulk rectifiers, and surge limiting device).
current should be no more than the specified maximum input current. The peak inrush current shall be less
than the ratings of its critical components (including input fuse, bulk rectifiers, and surge limiting device).
The power supply must meet the inrush requirements for any rated AC voltage, during turn on at any phase of
AC voltage, during a single cycle AC dropout condition as well as upon recovery after AC dropout of any
duration, and over the specified temperature range (T
AC voltage, during a single cycle AC dropout condition as well as upon recovery after AC dropout of any
duration, and over the specified temperature range (T
op
).
3.7.7
AC Line Transient Specification
AC line transient conditions shall be 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.
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 shall meet the requirements under the following AC line sag and surge conditions.