TISP61089B High Voltage Ringing SLIC Protector
‘1089 Section 4.5.13 - Second-Level Power Fault Testing for Central Office Equipment (Continued)
Table 6. Second-Level Power Fault Currents
TISP61089B I
A (peak)
Open-circuit
RMS Voltage
V
Short-circuit
RMS Current
A
No
of
Source
Resistance
Ω
TM
Test
#
AC Duration
s
Test
Primary
Fitted
Connections
Tests
R = 25
s
Ω
R = 40 Ω
s
120
277
1
1
Transverse &
Longitudinal
5
2x5.7
2x11
2x3.8
2x7.7
1
2
3
900
5
25
60
7
No
No
No
11
Transverse &
Longitudinal
600
600
1
1
10
86
2x24
2x17
Transverse &
Longitudinal
5
2x7.7
2x6.8
100 to
600
0.37 to
2.2
Transverse &
Longitudinal
4
5
900
900
No
No
270
2x2.9
2x2.7
600
0.09
60
Differential
Capacitive
2x0.09
2x0.09
NOTES: 1. If the equipment contains a voltage-limiting device or a current-limiting device, these tests are repeated at a level just below the
thresholds of the limiting devices.
2. Test 5 uses a special circuit with transformer coupled a.c. and capacitive feed.
‘1089 Section 4.5.15 - Second-Level Power Fault Testing for Equipment Located on the Customer Premise
This test, Table 7, is for network equipment located on the customer premises. The purpose is to ensure that the feed wiring does not become
a hazard due to excessive current. This testing is similar to the Section 4.5.11 testing. If the equipment is directly wired, the wiring simulator
described in Section 4.5.11 is replaced by a one-foot section of 26 AWG wrapped in cheesecloth. The equipment fails if an open circuit occurs
or the cheesecloth is damaged.
Table 7 shows the test conditions for this section. Columns 7 and 8 show the prospective currents using R values of 25 Ω and 40 Ω. For the
S
TISP61089B to survive, the series overcurrent protection to operate before the TISP61089B current-time ratings are exceeded.
Table 7. Customer Premise Wiring Simulator Testing
TISP61089B I
A (peak)
Open-circuit
RMS Voltage
V
Short-circuit
RMS Current
A
Source
Resistance
Ω
TM
AC Duration
s
Test
Primary
Fitted
Connections
R = 25
Ω
R = 40 Ω
s
s
900
0 to 600
0 to 30
Transverse & Longitudinal
No
20
0 to 2x 19
0 to 2x 14
NOTE: 1. If the equipment interrupts the current before the 600 V rms level is reached, a second piece of equipment is tested. The second
piece of equipment shall withstand 600 V rms applied for 900 s without causing a hazard.
‘1089 Section 4.5.16 - Second-Level Intra-Building Power Fault Testing for Equipment Located on the Customer Premise
This test, Table 8, is for network equipment ports that do not serve outside lines. For standard plugable premise wiring, the wiring simulator
fuse shall be used for testing. Where direct wiring occurs, the simulator shall consist of a length of the wire used wrapped in cheesecloth. The
equipment fails if a hazard occurs or a wiring simulator open circuit occurs or the cheesecloth is damaged.
Table 8. Second-Level Power Fault Currents
TISP61089B I
A (peak)
Open-circuit Short-circuit
RMS Voltage RMS Current
No
of
Source
Resistance
Ω
TM
Tes t AC Duration
Tes t
Primary
Fitted
#
s
Connections
V
A
Tests
R = 8
s
Ω
R = 25
s
Ω
R = 40 Ω
s
Transverse &
Longitudinal
1
900
120
25
1
No
5
2x13
2x5.7
2x3.8
NOTE: 1. If the equipment contains a voltage-limiting device or a current-limiting device, these tests are repeated at a level just below the
thresholds of the limiting devices.
OCTOBER 2000 - REVISED JULY 2008
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
