BI METAL TERMINAL LUGS AND CONNECTORS

Whenever aluminium cable is to be terminated on copper bus bar or copper contact, if aluminium lug is used then
contact between terminal lug and copper bus bar being of dissimilar metals, galvanic action takes place. Also if
copper lug is used then contact between aluminium cable and barrel of copper terminal lug is of dissimilar metal and hence the galvanic action takes place. In order to prevent dissimilar contact and to avoid galvanic action it is always advisable to use copper aluminium Bi-Metal lugs.

In Bi-Metal lugs barrel of the lug is of aluminium and the head or palm of the lug is of copper. This ensures contact between aluminium cable to terminal lug is of aluminium and contact between terminal lug to copper bus bar or contact is of copper. Thus contact between dissimilar metal is avoided and contact between similar metal is established. Thus Bi-Mettalic or galvanic action is completely eliminated and hence technically sound and durable joint is achieved.

Electrolytic copper head / palm is friction welded to electrolytic aluminium barrel. At the interface, copper molecules and aluminium molecules intermingles with each other and form durable bond. Similarly if aluminium cable is to be joined with copper cable then Bi-Metal in line connectors are to be used. Here for aluminium cable aluminium barrel is provided and for copper cable copper barrel is provided. Copper and aluminium barrels are friction welded. Depending upon application Bi-Metal terminals, in line connectors, pin type connectors etc are manufactured.

Note : In case if copper cable is to be terminated on aluminium bus bar / aluminium contact, then reverse Bi-Metallic lugs can also be manufactured against specific order. In reverse Bi- Metal lugs barrel is of copper and head is of aluminium.

COPPER ALUMINIUM
BI METAL LUGS
NON TENSION BI METALLIC
COMPRESSION JOINTS
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BI METALLIC PIN CONNECTORS BI METALLIC COMPRESSION
REDUCERS
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BI METALLIC LUGS WITH CENTRE PALM BI METALLIC LUGS WITH
EXTENDED PALM
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REVERSE BIMETALLIC LUGS RING TYPE BIMETALLIC LUGS
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BI METALLIC CONNECTOR SPECIAL BI-METALLIC LUGS
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