9
Instruction Manual
IB015002EN
Effective November 2021
Pow-R-Line CS switchboards
EATON
www.EatonCanada.ca/PRLCS
Mechanical set
screw lug
Standard one-hole
compression-type lug
Optional two-hole
compression-type lug
Figure 15. Screw and compression lugs
Unless a switchboard specifically restricts entry to a single means
or area, cables may enter through the top, bottom, side or back of
the main incoming section . These restrictions are typically required
to conform to wire bending space requirements of the CEC . Consult
the manufacturer ’s drawings for conduit entry data .
Once the conductors are pulled inside the main section, the cables
should be formed in the space provided . Clearly identify and
segregate conductors by phase and neutral . Care should be taken
in forming insulated cables to ensure that no insulation is forced
permanently against the edges of any metal parts .
Using appropriate tools, the installer must strip the conductor
insulation sufficiently to fill the entire barrel of the connector with
bare, uninstalled conductor . Conductor must be stripped without
damage to the conductor strands . Bare strands should be of equal
length (flush) on the end cut .
Do not strip off more insulation than needed . Exposure of bare
conductor outside lug can compromise clearances .
The connector and conductor should be free of all foreign debris .
Never clip cable/wire strands in order to fit within connectors . If
cable/wire does not match the rating of the connector, contact the
manufacturer .
Mechanical set screw lugs are the most common . Use an
antioxidant compound, if required . Insert bare conductor into lug so
the bare conductor fills the full length of the lug body . Tighten lug,
then torque to levels indicated on the switchboard label .
If compression lugs are utilized and supplied with the switchboard,
the lugs will be mounted on the incoming lug pad . Remove lugs
from the pad . Use an antioxidant compound, if required . Use a
crimping tool approved for that specific lug manufacturer and lug
size . Follow instructions provided by the manufacturer of the crimp
tool .
Once the lug is affixed to the conductor, re-install the lug on the
lug pad utilizing the existing hardware . Torque hardware using
information provided on switchboard labeling . Refer to Appendix
Table 2
for torque values . .