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Overview
- 35kV rated deadbreak elbow connector
- Integrated test point with insulated plug and cap
- Accommodates cable insulation diameters from 1.370" to 1.630"
- Supports 250 kcmil compressed stranded or 300 kcmil compacted solid conductors
- Aluminum compression lug for secure conductor termination
Specifications
Amperage Rating | 600 A |
Application | 35 kv, 600 Amp |
Color | Black |
Conductor Range | 250 kcmil , 300 kcmil |
Connection | Compression |
Connection Type | Compression Lug |
Environmental Conditions | Fully Submersible |
Insulation | True |
Material | Aluminum |
Material | Housing - EPDM-Rubber |
Series | 600 Series |
Size | Cable Insulation Diameter 1.370 inch to 1.630 inch |
Special Features | 35kV, 600 Amp Loadbreak Elbow. Fully shielded, fully submersible molded rubber housing. 100 percent peroxide-cured construction includes insulation and conductive EPDM materials. Can be easily connected or disconnected using standard hand tools and equipment in a de-energized state |
Standard | ANSI/IEEE Standard 386 |
Temperature Rating, Maximum | 149 F |
Temperature Rating, Maximum | 65 C |
Temperature Rating, Minimum | -40 F |
Temperature Rating, Minimum | -40 C |
Type | Deadbreak Elbow Connector with Test Point |
Voltage Rating | 35 kV |
Width | 12.28 in |
Width | 311.912 mm |
Package Dimensions (L x W x H) | 0.01 IN x 0.01 IN x 0.01 IN |
Package Dimensions (L x W x H) | 0.0254 cm x 0.0254 cm x 0.0254 cm |
Package Weight (Imperial) | 1.0000 L |
Package Weight (Metric) | 0.4540 kg |
755LR-M0280
600 Amp, 35kV, 600 Series Deadbreak Elbow (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Cable Insulation Diameter 1.370 inch to 1.630 inch. Universal Aluminum Compression Lug. Conductor Size AWG or kcmil Compressed Stranded 250, Solid 350.
756LR-L0320
35kV 600 Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Aluminum Compression Lug. Cable Insulation Diameter 1.180 inch to 1.465 inch. Conductor Size AWG or kcmil, Compressed Stranded 450 /Compacted Solid 500/550.
K465LR-G-2260-S
15/25kV, 630 Amps, Deadbreak Elbow without Test Point. With Cold-Shrinkable Jacket Seal. Cable Insulation Diameter 0.760-0.950 inches (19.304-24.130mm). Copper Compression Lug, Conductor Size 3/0 Stranded/Compressed or 4/0 Solid/Compact or 95 mm2. Thin Walled. Includes Elbow Connector Housing, Compression Lug, Stud, Insulated Plug with Cap, Tube Lubricant, Cable Adapter, Installation Instructions and Crimp Chart. Exceeds ANSI/IEEE Standard 386 Latest Revision.756LR-L2330
35kV 600 Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Copper Compression Lug. Cable Insulation Diameter 1.180 inch to 1.465 inch. Conductor Size AWG or kcmil, Compressed Stranded 500 /Compacted Solid 600 /mmSquared Compact 250/300.K465LR-J-2300-S
15/25kV, 630 Amps, Deadbreak Elbow without Test Point. With Cold-Shrinkable Jacket Seal. Cable Insulation Diameter 0.980 inch to 1.180 inch (24.892-29.972mm). Copper Compression Lug, Conductor Size 350 Stranded/Compressed or 400 Solid/Compact or 185 mm2. Includes Elbow Connector Housing, Compression Lug, Stud, Insulated Plug with Cap, Tube Lubricant, Cable Adapter, Installation Instructions and Crimp Chart. Exceeds ANSI/IEEE Standard 386 Latest Revision.756LR-H0240-S
35kV 600 Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Aluminum Compression Lug. Cable Insulation Diameter 0.850 inch to 1.050 inch. Conductor Size AWG or kcmil, Compressed Stranded 1/0 /Compacted Solid 2/0. Cold-Shrinkable Jacket Seal Included.
776LR-Q2440-S
900 Amp, 35kV, 600 Series Elbow with Test Point, with Insulated Plug, Cap, Stud, Lug and Cable Adapter. Cable Insulation Diameter 1.900 inch to 2.120 inch. Copper Compression Lug. Conductor Size Compressed Stranded 1250 kcmil. Cold-Shrinkable Jacket Seal Included.Frequently Asked Questions
What is the primary application of the 756LR elbow connector?
The 756LR provides fully shielded, dead-front submersible cable connections to high-voltage apparatus, suitable for use through 35kV systems.
What is the maximum operating voltage for the 756LR?
The 756LR is rated for a 35kV voltage class, with a maximum phase-to-ground operating voltage of 21.1kV.
What conductor sizes and materials are compatible with the 756LR?
It is compatible with #2 AWG to 1250 kcmil aluminum and copper conductors.
What cable insulation diameters does the 756LR support?
The 756LR supports cable insulation diameters ranging from .760 inches to 2.120 inches.
What is the continuous current rating of the 756LR?
The 756LR elbow connector has a continuous current rating of 600 Amps.
What are the impulse and AC/DC withstand voltage ratings?
The ratings include 150kV BIL impulse, 50kV AC one-minute withstand, and 103kV DC 15-minute withstand.
Is the 756LR elbow connector submersible?
Yes, the 756LR features a fully shielded and fully submersible molded rubber housing.
What is the primary application of the 756LR elbow connector?
The 756LR provides fully shielded, dead-front submersible cable connections to high-voltage apparatus, suitable for use through 35kV systems.
What are the impulse and AC/DC withstand voltage ratings?
The ratings include 150kV BIL impulse, 50kV AC one-minute withstand, and 103kV DC 15-minute withstand.
Is the 756LR elbow connector submersible?
Yes, the 756LR features a fully shielded and fully submersible molded rubber housing.
How to Install 756/776LR Deadbreak Elbow Connectors
This guide provides step-by-step instructions for the safe and proper installation of 756LR and 776LR Deadbreak Elbow Connectors on 35kV class systems, including cable preparation, crimping, and connection to mating apparatus.
Estimated time: 1h 30m
Tools needed:
Crimping tool, Wire brush, Hotstick, Suitable voltage sensing device, Wire strippers, Cleaning cloths
Supplies needed:
756/776LR Deadbreak Elbow Connector kit (includes Elbow, Cable Adapter, Compression Lug, Insulating Plug, Crimp connector, Lubricant, Stud Prepack), Grounding wire (minimum 14 AWG Copper), Grounding connector, Silicone lubricant (for test point cap)
- De-energize Apparatus and Prepare Cable
DANGER: All apparatus must be de-energized during installation or removal of parts. Position the cable in its final assembled position with enough slack. Cut the cable 1-3/4 inches (45mm) from the centerline of the mating product. Clean the outer jacket of the cable for a distance of 24 inches (610mm). Prepare the cable according to its type (e.g., remove outer jacket, prepare shield) following specific instructions for grounding devices or cable shield adapters if applicable.
- Install Cable Adapter and Prepare Conductor
Bevel the end of the cable insulation at a 45-degree angle, approximately 1/4 inch (6mm) back. Thoroughly clean and then lubricate the cable insulation, working toward the semi-con shield. Install the cable adapter, small end first, until it is flush with the edge of the tape marker. Remove the protruding cable insulation by cutting it even with the end of the cable adapter, ensuring not to cut or nick the cable adapter or the conductor. The exposed conductor length should be between 4-3/8 inches to 4-3/4 inches (111mm-121mm).
- Crimp Compression Lug
For copper conductors, fully insert the conductor into the compression lug. For aluminum conductors, wire brush the conductor and immediately fully insert it into the compression lug. Measure the 'Check Dimension' before crimping; it should be less than 7 inches (178mm). Crimp the compression lug following the crimping instructions supplied with the lug. Wipe all excess inhibitor from the compression lug and cable adapter surface after crimping. The distance from the end of the compression lug to the cable adapter after crimping should be between 6-7/8 inches to 7-5/8 inches (175mm-194mm).
- Install Elbow onto Cable Adapter
Lubricate the cable adapter and the inside of the elbow cable entrance. Install the elbow onto the cable adapter until it cannot advance further. Ensure the cable adapter is still flush with the tape marker; reposition if necessary. Remove the tape marker.
- Connect Elbow to Mating Apparatus
DANGER: Do not connect or disconnect mating products while energized. Do not energize while disconnected. Remove protective caps from the elbow and the mating part. Hand tighten the threaded stud (supplied with the elbow) into the mating part if it is not already equipped with a stud. Clean and lubricate both the elbow and the mating part with the supplied lubricant. Push the elbow onto the mating part, aligning the hole in the compression lug with the stud on the mating part.
- Connect Opposite Mating Part and Ground Cable Shield
Clean and lubricate the mating part for the opposite end of the elbow. Insert this mating part into the elbow, engage the threads, and hand tighten. Torque the mating part according to its supplied instructions. If an insulating plug is used, clean and lubricate the inner surface of the voltage detection cap and place it on the elbow, pushing down hard until it snaps into place. Insert one end of a grounding wire (at least No. 14 AWG Copper) through the grounding eye, twist to make a small loop, and connect the wire to ground using a suitable connector. The cable shield must be grounded.
- Perform Voltage Test (Optional but Recommended)
CAUTION: The insulating plug provides a means for detecting system voltage. When using the test point, remove the test point cap with a hotstick by peeling it off at an angle. WARNING: The voltage test point is a capacitance device and not directly connected to the conductor. Do not use conventional voltage measuring equipment. Use a suitable sensing device made for capacitive test points. Treat the elbow as energized until the 'no voltage' indication is confirmed by other means. After testing, clean and lubricate the inside surface of the cap with silicone lubricant and replace it on the test point.
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