6/2/2010
Page 16 of 25
Electrobar 8-Bar Instruction Manual
005-1044-R8
Chapter 9.0: Expansion Sections
9.1:
Install expansion sections (if required – see table below) before installing conductor sections.
9.1.(a):
Galvanized steel conductors – every 150 feet. (e.g. 1 in center of 300’ run)
9.1.(b):
Copper systems – every 100 feet. (e.g. 1 in center of 200’ run)
9.1.(c):
All systems – at building expansion areas.
ELECTROBAR 8-BAR
90 Amp & 110 Amp
Galvanized Steel Conductors
250 Amp & 350 Amp
Copper Conductors
Conductor
Length
Anchors
Required
Expansions
Required
Conductor
Length
Anchors
Required
Expansions
Required
Up to 299’
1
0
Up to 199’
1
0
300’ to 449’
2
1
200’ to 299’
2
1
450’ to 599’
3
2
300’ to 399’
3
2
600’ to 749’
4
3
400’ to 499’
4
3
750’ to 999’
5 4
Note: For outdoor applications, additional expansions may be required. Please consult the factory.
9.1.(d):
Snap or slide the conductors into the hangers. When clamp-type hangers are used,
tighten the clamping bolt only after the conductor sections are joined.
9.1.(e):
To join conductor sections, clean any dirt or oil on connector pins and join conductor
sections using the connector tool. File any rough joints. Joints should be completely closed.
9.1.(f):
Install joint keeper clips on ALL 8-Bar copper conductor systems for the inverted V side of
conductor (see page 14).
9.2:
Expansion Gap Installation
9.2.(a):
Expansion gap assemblies must be supported at the gap location.
