Cut Sheet

Terminals
129
The Proper Installation Procedure for the Quality
Assured Connection
The proper installation of terminals,
splices and connectors is very important
to the efficient performance of an
electrical system. The properly installed
connector will allow good conductivity
through the termination. A poor
termination results in a high resistance
connection. A poor connector
installation may cause damage or failure
of an entire system. Certain basic
requirements must be met to make a
good termination.
1. Before the connector or terminal is
installed on the conductor, follow
these recommended practices:
• Strip the insulation carefully so as to
avoid nicking or cutting conductor
strands.
• Strip the insulation to the proper
length so that the conductors can be
inserted fully into the connector barrel;
the wire/cable should be visible in the
inspection hole of the lug; the proper
strip length can be found on page
195.
2. Thomas & Betts wire strippers will
help eliminate these problems by
properly gaging and measuring the
depth and length requirements for the
conductor. See page 177 for wire
strippers.
The terminal must be properly installed.
Installation Procedure
1. Train the wires to eliminate fanning of
strands.
2. Open handles fully.
3. Insert terminal in proper die nest and
locate it as shown above. When
crimping a butt splice, position in
proper die nest with window facing
indentor.
4. Close handles slightly to secure
terminal. Do not deform terminal.
5. Insert properly stripped wire into
terminal.
6. Complete crimp by closing handles.