Regulatory Compliant Solutions
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2002 Teccor Electronics
SIDACtor
Data Book and Design Guide
Regulatory Compliant Solutions
When determining the most appropriate solution to meet the lightning and AC power fault
conditions for regulatory requirements, coordination is essential between the
SIDACtor
device, fuse, and any series impedance that may be used.
Figure 4.14 through Figure 4.19 show templates in which this coordination is considered for
the most cost effective and reliable solutions available. For exact design criteria and
information regarding the applicable regulatory requirements, refer to the
SIDACtor
device
and fuse selection criteria in this Section 4, “Regulatory Requirements”, and in Section 5,
“Technical Notes”.
GR 1089 and ITU-T K.20 and K.21
Figure 4.14 and Figure 4.15 show line interface protection circuits to meet GR 1089 surge
immunity requirements without the additional use of series resistance. Use the “C” series
SIDACtor
device and F1250T to meet GR 1089 surge immunity requirements. Use the
“A” series
SIDACtor
device and F0500T to meet ITU-T K.20 and K.21 basic surge immunity
requirements without the additional use of resistance.
The enhanced surge immunity requirements of ITU K.20 and K.21 require the use of “C”
rated
SIDACtor
devices if no series resistor is used.
.
Figure 4.14
Balanced Line Protection using Teccor’s “AC” or “AA” series
Figure 4.15
Metallic-only Solution using Teccor’s “SC” or “SA” series.
Tip
Ring
To
Protected
Equipment
F1250T
F1250T
Tip
Ring
To
Protected
Equipment
F1250T / F0500T