Accessories and Options
87
The end of the high voltage cable is non insulated parts, including the black plastic
and the bare metallic part of the clamp. Make sure that these parts are placed in
safe distance from any ground potential (i.e. transformer tank or bushing flange). A
flashover might occur.
15.1.2 Extension clamp
A pair of extension clamps (part number 4842106) is delivered in the standard scope of supply. These can be used if the
diameter of the bushing is too big for the normal (red) measuring clamps.
Bushing
diameter
Red Measurement Clamp
< 42 mm (1.6
in)
Extension Clamp, inner part < 50 mm (2 in)
Extension Clamp, outer part
< 70 mm (2.8
in)
First connect the extension clamp to the bushing. Then connect the normal clamp on the other end.
Connecting to bigger diameters using the extension clamp with the outer part.
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