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92 C120-H007-05EN
CHAPTER 7 Protection Against Lightning
7.1 Protection of AC Line
The surge protection level of SPARC Enterprise and PRIMEQUEST power supply
facility complies to the International Electrotechnical Commission (IEC) standard.
Therefore, special protective action against typical multitude of lightning is not
required. However, depending on the multitude of induced surge energy, the
equipment may be damaged by the induced surge. Especially in some regions where
often encounter thunder, implementation of external surge absorber is recommended.
The preventive action on AC lines for surge attacks can be classified into following
three methods:
z Using power control box (F9710PW2)
z Install a surge absorber in each terminal outlet
z Install a surge absorber to the input side of a distribution panel
The procedure for each method is described below.
(1) Using power control box (F9710PW2)
F9710PW2 power control box is effective for the components connected through
Switched/Unswitched type outlet. If power consumption sum of the components is
lower than 1.5 kVA, install the power control box between the processing components
and the power supply facility (connect the power cable of the processing component
with Unswitched outlet of the power control box). This control action protects the
processing components from surge voltage.
Table 7.1 shows the specification of the power control box (F9710PW2).
Table 7.1 Specification of power control box (F9710PW2)
Item Specification
Rated voltage AC100V ±10%
Rated capacity 1.5 kVA (15 A/phase) (Unswitched+Switched)
Serving outlets Unswitched 2 outlets, 2P + ground type
Switched 4 outlets, 2P + ground type
For control signal 2 m (7 ft), Mini DIN8P (Controlled by PC interface)
For input power 3 m (10 ft), 2P + ground