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Expansion Sections are used at all structural expansion joints and for systems longer than 492 ft. (150 m) to allow for thermal expansion and contraction of the bar. The maximum gap of the Expansion Section is 2.0" (50 mm). The Expansion Section is 14’ 9" (4.5 m) long and is installed in place of one length of conductor bar.
Expansion Sections with Splice Installed
expansion section dim
Unit of Measure
1 

Item #

Amperage Rating

Cover Type

Weight

Material

39131-J N/A 125 A N/A UV Stable (Black) N/A 5.3 lb2.4 kg N/A Galvanized Steel
310209-J N/A 125 A N/A Medium Heat Cover (Red) N/A 5.3 lb2.4 kg N/A Galvanized Steel
310208-J N/A 125 A N/A Standard Ground Cover (Green) N/A 5.3 lb2.4 kg N/A Galvanized Steel
310207-J N/A 125 A N/A Standard Phase Cover (Orange) N/A 5.3 lb2.4 kg N/A Galvanized Steel
39130-J N/A 100 A N/A UV Stable (Black) N/A 6.2 lb2.8 kg N/A Galvanized Steel
310109-J N/A 100 A N/A Medium Heat Cover (Red) N/A 6.2 lb2.8 kg N/A Galvanized Steel
310108-J N/A 100 A N/A Standard Ground Cover (Green) N/A 6.2 lb2.8 kg N/A Galvanized Steel
310107-J N/A 100 A N/A Standard Phase Cover (Orange) N/A 6.2 lb2.8 kg N/A Galvanized Steel
39129-J N/A 60 A N/A UV Stable (Black) N/A 8.6 lb3.9 kg N/A Galvanized Steel
310009-J N/A 60 A N/A Medium Heat Cover (Red) N/A 8.6 lb3.9 kg N/A Galvanized Steel
310008-J N/A 60 A N/A Standard Ground Cover (Green) N/A 8.6 lb3.9 kg N/A Galvanized Steel
310007-J N/A 60 A N/A Standard Phase Cover (Orange) N/A 8.6 lb3.9 kg N/A Galvanized Steel
Unit of Measure
1