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Overview
- 15/25kV voltage rating for medium-voltage applications
- 600 Amp continuous current rating
- Integrated test point for diagnostic access
- Includes insulated plug, cap, stud, lug, and cable adapter
- Copper compression lug for secure conductor connection
Specifications
Amperage Rating | 600 A |
Application | 15/25kV, 600 Amp Deadbreak Elbow Connection |
Color | Black |
Conductor Range | #1 STR/COMPR AWG , 1/0 SOL/COMPT AWG |
Connection Type | Compression Lug |
Current Rating | 600 A |
Environmental Conditions | Fully Submersible |
Insulation | True |
Length | 13 in |
Length | 330.2 mm |
Material | Copper |
Material | Housing - EPDM-Rubber |
Series | K656LR |
Size | [object Object] |
Special Features | 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. Non-Corrosive, Capacitive Test Point |
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 | 25 kV |
Voltage Rating | 15/25 kV |
Width | 10.36 in |
Width | 263.144 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 |
756LR-J2230-SG3
35kV 600 Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter). Copper Compression Lug. Cable Insulation Diameter 0.980 inch to 1.180 inch. Conductor Size AWG or kcmil, Compressed Stranded #1 /Compacted Solid 1/0. Cold Shrinkable Seal with Copper Braid and Constant Force Spring Included.
K656LR-K5330-S
15/25kV 600 Amp Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter), Bi-Metal Compression Lug. Cable Insulation Diameter 1.090 inch to 1.310 inch. Conductor Size Compressed/Stranded 500 or Compact/Solid 600 or mm2 Compact 250/300. Cold-Shrinkable Jacket Seal Included.K656LR-L5330-SG3
15/25kV 600 Amp Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter), Bi-Metal Compression Lug. Cable Insulation Diameter 1.180 inch to 1.465 inch. Conductor Size Compressed/Stranded 500 or Compact/Solid 600 or mm2 Compact 250/300. Cold Shrinkable Seal with Copper Braid and Constant Force Spring Included.K656LR-L0360-S
15/25kV 600 Amp 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 Compressed/Stranded 650 or Compact/Solid 750 or mm2 Compact 400. Cold-Shrinkable Jacket Seal Included.K656LR-K5300-S
15/25kV 600 Amp Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter), Bi-Metal Compression Lug. Cable Insulation Diameter 1.090 inch to 1.310 inch. Conductor Size Compressed/Stranded 350 or Compact/Solid 400 or mm2 Compact 185. Cold-Shrinkable Jacket Seal Included.K656LR-K5310-SG3
15/25kV 600 Amp Series Deadbreak Elbow with Test Point (with Insulated Plug, Cap, Stud, Lug and Cable Adapter), Bi-Metal Compression Lug. Cable Insulation Diameter 1.090 inch to 1.310 inch. Conductor Size Compressed/Stranded 400 or Compact/Solid 450 or mm2 Compact 240. Cold Shrinkable Seal with Copper Braid and Constant Force Spring Included.Frequently Asked Questions
What is the maximum operating voltage for the K656LR-L2230?
The K656LR-L2230 can be used through 28kV. For the 15kV voltage class, the max operating voltage is 8.3kV phase-to-ground and 14.4kV phase-to-phase. For the 28kV voltage class, it is 16.2kV phase-to-ground and 28kV phase-to-phase.
What conductor sizes are compatible with the K656LR-L2230?
This elbow connector is designed for conductor ranges from #2 AWG to 1250 kcmil for both aluminum and copper conductors.
What is the acceptable insulation diameter range for this connector?
The K656LR-L2230 is compatible with insulation diameters ranging from 0.640 inches to 1.935 inches.
What standards does the K656LR-L2230 meet?
The K656LR-L2230 meets ANSI/IEEE Standard 386, Latest Revision.
What is the continuous current rating for this deadbreak elbow?
The K656LR-L2230 has a continuous current rating of 600 Amps.
What is the momentary current withstand rating?
The momentary current withstand rating is 25kA symmetrical for 10 cycles.
What is the impulse withstand voltage for the 28kV class?
For the 28kV voltage class, the impulse withstand voltage is 140kV BIL (1.2 x 50 microsecond wave).
What is the AC one-minute withstand voltage for the 15kV class?
The AC one-minute withstand voltage for the 15kV voltage class is 34kV.
What is the corona extinction rating for the 28kV class?
The corona extinction rating for the 28kV voltage class is 21.5kV AC at 3pC sensitivity.
Is a grounding device recommended for this product?
Yes, when used on metallic tape shield or drain wire cable, an ECS cable seal grounding device is highly recommended for safety.
How to Install K655/K675LR Deadbreak Elbow Connectors
This guide provides step-by-step instructions for the safe installation and wiring of K655/K675LR deadbreak elbow connectors on high voltage apparatus, including cable preparation and final assembly. Ensure all apparatus are de-energized before beginning installation.
Estimated time: 1h 30m
Tools needed:
Wire strippers, Crimping tool, Wire brush (for aluminum conductors), Hotstick, Suitable sensing device (for capacitive test points), Torque wrench
Supplies needed:
K655/K675LR Elbow Connector kit (includes Elbow, Cable Adapter, Compression Lug, Insulating Plug, Lubricant, Stud Prepack), No. 14 AWG Copper wire (or equivalent ampacity), Suitable ground connector, Silicone lubricant, Waterproofing material (for cable jacket)
- Ensure Safety and Prepare for Installation
DANGER: All apparatus must be de-energized during installation or removal of parts. Do not touch or move energized products. Inspect all parts for damage, proper rating, and compatibility with mating parts. Read all instructions completely before starting and have all required tools at hand. Maintain cleanliness throughout the procedure.
- Assemble Cable and Clean Outer Surface
Assemble the cable in its final position, ensuring enough slack to remove elbows. For concentric neutral cable, unwind the neutral wires. Cut the cable 1-3/4 inches (45mm) from the centerline of the mating product. Clean the outer surface of the cable for a distance of 24 inches (610mm) or up to the bent back concentric neutral wires.
- Prepare the Cable End
Remove the outer jacket (if applicable) and prepare the cable according to the specific type (e.g., non-jacketed concentric neutral, jacketed shield wires, flat metallic tape shield, fabric tape shield, or longitudinally corrugated shield). Refer to the provided diagrams for precise dimensions for cable insulation, semi-con shield, and tape marker placement. If using a 20MA/21MA grounding device, 600ECS Jacket Cable Seal, or 10TL cable shield adapter, refer to their specific installation instructions for cable preparation.
- Install the Cable Adapter
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, always working toward the semi-con shield. Install the cable adapter, small end first, until it is flush with the edge of the tape marker.
- Expose the Conductor
Remove the protruding cable insulation by cutting it even with the end of the cable adapter. Be careful not to cut or nick the cable adapter or the conductor. The length of the exposed conductor should be between 4-1/4 inches and 4-9/16 inches (108mm-116mm). If the length is outside this range, redo the assembly.
- Install and Crimp the 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 6-3/8 inches. Crimp the compression lug following the instructions supplied with the lug. Wipe all excess inhibitor from the 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 6-3/8 inches to 7-1/8 inches (162mm-181mm). If dimensions are incorrect, redo the assembly.
- Install the Elbow Connector
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 remains flush with the tape marker. If not, reposition the cable adapter. Remove the tape marker.
- Prepare Mating Products
DANGER: Do not connect or disconnect mating products while energized. Do not energize while disconnected. Remove protective caps from both the elbow and the mating part. Hand tighten the threaded stud supplied with the elbow into the mating part, if the mating part is not already equipped with a stud. Clean and lubricate both the elbow and the mating part with the supplied lubricant, ensuring surfaces remain clean.
- Connect Elbow to First Mating Part
Push the elbow onto the mating part, carefully lining up the hole in the compression lug with the stud on the mating part.
- Connect Elbow to Second Mating Part or Insulating Plug
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 the instructions supplied with that specific mating part. If an insulating plug is used as a mating part, clean and lubricate the inner surface of the voltage detection cap and place it on the elbow, pushing down hard until the cap snaps into place.
- Ground the Cable Shield
Insert one end of a piece of wire with ampacity at least equivalent to No. 14 AWG Copper through the grounding eye and twist to make a small loop, taking care not to damage the eye. Connect this wire to ground using a suitable connector. The shield of the cable must be grounded; follow instructions supplied with any grounding device or use an alternate method. It is also recommended to waterproof the cable jacket at this point to prevent moisture ingress.
- Perform Final Torque Check
CAUTION: When constructing 600-amp L-Kits, ensure each component is tightened to the specified torque per the instructions provided with the individual components.
- Perform Voltage Test (Optional but Recommended)
The ELASTIMOLD deadbreak elbow connector has an integral capacitance test point. To use it, remove the test point cap with a hotstick, peeling it off at an angle. WARNING: This is a capacitance device, not directly connected to the conductor. Do not use conventional voltage measuring equipment. Use a suitable sensing device designed for capacitive test points to determine if the cable is energized. Contamination or incorrect equipment can give false readings; treat the elbow as energized until confirmed otherwise 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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