6/2/2010
Page 8 of 25
Electrobar 8-Bar Instruction Manual
005-1044-R8
3.2: System
with
Expansions
The following are general system installation guidelines; see the following sections for specific component installation instructions.
3.2.(a):
Check alignment of mounting brackets prior to assembling hangers and bar. Correct any
brackets that are misaligned. Mounting brackets should not exceed ¼” in horizontal and vertical
mis-alignment over 5’0” mounting centers.
3.2.(b):
To expedite assembly, it is recommended that the hanger brackets be loosely
assembled to the mounting brackets prior to hanging the mounting brackets.
3.2.(c):
Anchor hangers will be located on mounting brackets: 75 ft. from the centerline of the
expansion assembly on 90 Amp and 110 Amp systems; 50 ft. from the centerline of the
expansion assembly on 250 Amp and 350 Amp systems.
3.2.(d):
Begin system assembly by installing the expansion assemblies or the first set of
expansion assemblies. Locate the end of the expansion (joint) approximately 2½ ft. from a
hanger – this will prevent joint/hanger interference as the system is assembled.
3.2.(e):
Once the first set of expansion assemblies are assembled to the mounting brackets,
begin to assemble additional conductors to the system in one direction from the expansion.
3.2.(f):
The expansion gap will need to be set as per the chart located on page 17. Note: Set
gap to the appropriate dimension. This will need to be verified prior to clamping the anchor
hangers.
3.2.(g):
Continue to assemble the system in one direction through the anchor hangers (do not
assemble at this time) to the end or to the next expansion assembly.
3.2.(h):
Between each individual bar (and a joint keeper if applicable), a joint cover must be
mounted. When assembling a joint, the following items should be checked:
3.2.(i).(i):
The ends of the conductor bars are located tightly close to each other (never to exceed
1/8” gap).
3.2.(i).(ii):
The joint assembly is centered over each joint.
3.2.(j):
Power feeds are designed to be mounted at system joint locations. Ensure that the
hardware is tightened appropriately and the power feed cover is properly located on the bar. Be
sure feed cables do not apply any additional stress on the conductor bars.
3.2.(k):
From the other end of the initial expansion assemblies installed, continue to install the
system in the other direction.
3.2.(l):
At the end of each conductor run, end caps are needed to properly insulate the system.
3.2.(m):
With the system installed, except for assembling of anchors to the bar, return to the first
set of anchors located from the end of the conductor run and assemble the anchor assembly.
