Hubbell 35 kV loadbreak elbows provide utilities with products having high reliability and low maintenance expense. The elbow, when mated with a loadbreak bushing product meeting the requirements of IEEE Standard 386, is suitable for energized loadmake/loadbreak operations by a qualified lineman using an 8' shotgun-type hot stick.

PRODUCT FEATURES

1. Molded external shield - conductive, abrasion resistant 1/8 - inch thick shield of peroxide cured EPDM.
2. EPDM insulation - cured with peroxide process provides superior stress-relaxation characteristics and assures long life under high-ambient temperatures. Compatible with polyethelene, crosslink polyethelene and EPR insulations.
3. Molded conductive insert -guards against high electrical stress from corners of crimped connector.
4. Hot-stick operating eye -reinforced with stainless steel ring. Withstands 500-pound pull and 10 foot-pound torque, permits energized loadmake-loadbreak operation with hot-stick tool.
5. Compression connector -meets requirements of ANSI C119.4/NEMA CC3 for Class A connectors.
6. Test Point -allows voltage indication when readout is made with suitable high-impedance devices. Elbows are available with or without this feature.
7. Cable entrance -has conductive rubber stress relief area which contacts extruded cable insulation shield. Elbow model selected to assure interference fit along cable insulation surface providing proper creep distance and water-tight fit.
8. Ground Tab -designed so that two #14 awg copper wire can be inserted into the hole. Use of separate wires is recommended.
9. White-black-white-band -identifies elbow as having phaseto- ground and phase-to-phase voltage rating. Both the black and white bands are individually removable.
10. Interface -to allow interference- fit seal when installed on mating component designed to IEEE Standard 386. Provides proper creep distance and water-tight fit, yet permits unplugging of elbow after years of service.
11. Locking ring -is a part of IEEE Standard 386 requirement. Provides positive gripping. Initial pull-off force to unseat from mating groove in bushing insert produces fast break necessary for loadbreak switching.
12. Probe -mates with pinch-finger contacts in bushing insert, or other switch point. Inner end has threads with pilot to aid installation in crimped connector without thread stripping. Outer end is made of ArcMate™ ablative material that produces gas when exposed to loadbreak arc, permitting reliable interruption even with close ground spacing.
13. Undercut -mates with the rubber seal in the bushing insert.

SELECTION AND ORDERING

Elbow must be sized to the cable insulation diameter. Cable manufacturers' catalogs show the nominal insulation diameter, plus tolerance. Select the elbow component so that the cable dimension is within the "D" dimension listed in the following tables.

In the event the cable diameter information is not available, take several insulation measurements along a length of cable to be used with the elbow.