Chapter #4 Processes

Processes

4

4.1 Introduction

This chapter discusses, in brief, few important processes relevant to the Busbar Systems comprising:

Welding Jointing Plating Painting Coating Galvanizing

The table below lists the main purpose of subjecting different components of the Busbar System to the above processes

Table – 4.1
Process
Type Conductor Enclosure Structure
Welding Cu-Cu
Al-Al
C & S Al-Al
Fe-Fe
C & S Al-Al
Fe-Fe
S
Jointing Cu-Cu
Al-Al
Cu-Al
C & S Al-Al
Fe-Fe
C & S Al-Al
Fe-Fe
S
Plating Ag/Sn/Ni
on Cu/Al
C & P X X Fe P
Painting Cu
Al
E & P Al
Fe
E & P Al
Fe
P
Coating Cu & Al E, P & I X X X X
Galvanizing Fe P Fe P Fe P
C – Conductivity     E – Emissivity     I – Insulation     P – Protection     S – Strength
(Protection – corrosion, erosion, rain & u/v radiation)

Ag -Silver,   Cu– Copper,   Sn – Tin,   Al – Aluminium,   Fe – Steel
The processes are carried out on the surfaces of conductors, enclosures, and support structures.