Page 57 - PUC Compression Connectors FLIPBOOK_080415
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several dozen die sets that may be required to crimp all of Dieless-type Crimpers
the connectors within the installation range of the specific The other class of hydraulic crimping tools are the dieless
hydraulic crimping tool. tools. Dieless actually means that there is no die insert
change needed when one needs to crimp a different con-
Certain styles of connectors used in the electric utility nector size within the range of the tool. The dieless hydraulic
industry are designed to minimize the number of crimping tools can be further classified by the three general crimp
die sets that each line crew must carry. These special con- shapes that are made. One group of dieless tools makes
nectors are designed to have a constant outside diameter on crimps which are of the nest and indentor style with the
the crimp barrel portion of the connector with various inside next being a stationary portion of the tool and the indentor
diameters to match conductor size. For example, a popular moving with the hydraulic ram. A second grouping of dieless
grouping of electric utility connectors has a constant outside tools makes use of multiple indentors which indent the
diameter of 0.640 inches for a series of cable sizes from No. connector from multiple sides without the use of a nest. The
10 AWG through 1/0 AWG and all of the individual connec- third group of dieless tools provides a crimp which surrounds
tors are crimped with the same die insert. Electric utilities the connector barrel and has an appearance more like that
also use a series of compression taps with a cross section of a die type tool than either of the two indentor style dieless
shape similar to the letter “H” which are grouped to install tools can provide. All of the dieless tool types are capable of
most cable size combinations between No. 6 AWG and 500 crimping cylindrical connector barrels as recommended by
kcmil with only three crimping die sizes. their respective manufacturers.
FIGURE FIGURE
1A 1B
Surrounding crimp styles Indent
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