FLIR b Series Getting Started Manual page 32

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Oxidized electrical socket
General information on oxidized sockets
Depending on the type of socket and the
environment in which the socket is
installed, oxides may form on the
socket's contact surfaces. These oxides
can lead to locally increased resistance
when the socket is loaded, which can be
seen in an infrared image as a local
temperature increase.
To keep in mind
A socket's construction can differ
dramatically from one manufacturer to
another. For this reason, different faults in
a socket can result in the same typical
appearance in an infrared image.
A local temperature increase can also
result from improper contact between a
wire and the socket, or from a difference
in load.
Example image
The image shows a series of fuses where
one fuse has a raised temperature of the
surfaces in contact with the fuse holder.
The temperature increase is not visible
on the fuse holder because of its
reflective metal surface, but it is shown by
the fuse's ceramic material.
32 © 2010, FLIR Systems AB. All rights reserved worldwide.
Publ. no. T559048, rev. 004