Sel 2414 - Safety Warnings and Precautions; Wire Sizes and Insulation

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SEL-2414 Transformer Monitor Instruction Manual Date Code 20130214
Preface
Safety and General Information
The following figure shows LED location specific to the SEL-2414 (see
Figure 2.5–Figure 2.7 for the rear-panel drawings).
Safety Warnings and Precautions
➤ Do not look into the end of an optical cable connected to an optical
output.
➤ Do not look into the fiber ports/connectors.
Use of controls or adjustments, or
performance of procedures other
than those specified herein, may
result in hazardous radiation
exposure.
!
CAUTION
➤ Do not perform any procedures or adjustments that are not
described in this manual.
➤ During installation, maintenance, or testing of the optical ports
only use test equipment classified as Class 1 laser products.
➤ Incorporated components such as transceivers and laser/LED
emitters are not user serviceable. Units must be returned to SEL
for repair or replacement.
Wire Sizes and
Insulation
Wire sizes for grounding (earthing), current, voltage, and contact connections are
dictated by the terminal blocks and expected load currents. You may use the fol-
lowing table as a guide in selecting wire sizes:
You should use wire with 0.4 mm thick insulation for high voltage connections to
allow for contact between adjacent wires. If possible, use 0.4 mm insulated wires
for all connections.
LED Location Specific to the SEL-2414
Optional Fiber-Optic
(LED) Ports
SEL-2414 (partial)
Connection Type Minimum Wire Size Maximum Wire Size
Grounding (Earthing) Connection 14 AWG (2.5 mm
2
)10 AWG (4 mm
2
)
Current Connection 16 AWG (1.5 mm
2
)10 AWG (4 mm
2
)
Potential (Voltage) Connection 18 AWG (0.8 mm
2
) 14 AWG (2.5 mm
2
)
Contact I/O 18 AWG (0.8 mm
2
) 14 AWG (2.5 mm
2
)
Other Connection 18 AWG (0.8 mm
2
) 14 AWG (2.5 mm
2
)