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Researching the requirements 19
Input power specifications

The following tables provide input system power specifications as required

for

AC

power:

Table 8

Input power specifications

Input Minimum Nominal Maximum

Voltage (VAC) at pedestal 180 2081240 250
Frequency

(Hz) 47

50160

63

Transient tolerance (See note)

Amplitude Duration
. .
Surges

288

V ac

8.34

mS
to 50
mS

276

V ac

50

mS
to 500
mS
Sags
146Vac 8.34
mS
to 50
mS
166Vac

50

mS

to 500

mS
-.
Spikes 815 V pk ~4.17
mS
815Vpkto408Vpk
4.17 to 8.3
mS
Notches
to ov
<4.17
mS
OVto206V
4.17
mS
to 8.3
mS
Note: These values are taken from the National Electric Code and various
Telco specifications. All transients are applied at the peak of the AC
waveform.
Installation planning 553-3001-120
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