CABLE ACCESSORIES
PG-CA-1109
Thomas & Betts Corporation 8155 T&B Boulevard Memphis, TN 38125 800.888.0211 www.tnb.com
How to Specify Size-Sensitive Products
Elastimold Elbows, cable joints and terminations are designed for application on XLP, EPR and
other
solid dielectric insulated power cables. These components are constructed of molded
elastomer and rely on an interference fit with the cable insulation diameter in order to maintain
proper dielectric strength, creep path integrity and a water seal. Elastimold components are
available in a wide range of sizes in order to accommodate a variety of cable insulation diameters.
Selection of size-sensitive components requires determining the cable insulation diameter.
This can be done in several ways:
A. Refer to the cable manufacturer’s spec sheet for dimensions.
B. Measure the cable.
C. If the cable conforms to AEIC or ICEA standards and is:
1. 15kV, 175 mil wall thickness, use the table on page 34.
2. 15kV, 220 mil wall thickness, use the table on page 35.
3. 25kV, 260 mil wall thickness, use the table on page 35.
4. 35kV, 345 mil wall thickness, use the table on page 36.
After the cable insulation diameter minimum and maximum has been determined:
1. Locate the W table indicated in the part number selection chart.
2. Complete the ordering information by selecting and inserting the symbol
(given in the W table) into the part number.
‘W’
INSULATION
DIAMETER
Determines Size of Molded Rubber Part
‘W’
CABLE
INSULATION
DIAMETER
To complete the information required to order a K655LR-W0X
elbow
for use on standard AEIC 1000 kcmil compressed stranding
aluminum 25kV cable with .260 inch thick insulation wall:
A. Determine that the insulation diameter (for AEIC cable in the
table on pages 34-36) is 1.645 – 1.770 inches.
B. For this elbow, the part number selection chart on page 11
indicates to use table W7 for elbow sizing and table X6 for
connector sizing.
C. From table W7 the symbol for W is .
D. From table X6 the symbol for X is .
E.
The completed part number therefore is K655LR-0.
To complete the information required to order a K655LR-W0X
elbow
for use on standard ICEA 1000 kcmil compressed stranding
aluminum 25kV cable with .260 inch thick insulation wall:
A. Determine that the insulation diameter (for ICEA cable in the
table on pages 34-36) is 1.645 – 1.740 inches.
B. For this elbow, the part number selection chart on page 11
indicates to use table W7 for elbow sizing and table X6 for
connector sizing.
C. From table W7 the symbol for W is .
D. From table X6 the symbol for X is .
E.
The completed part number therefore is K655LR-0.
(28 pages)
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