Distribution Transformers Effective July 2014 Supersedes September 2011 600 A 15/25 kV class DT625 T-body installation and cable preparation instructions S600-46-2
DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY The information, recommendations, descriptions and safety notations in this document are based on Eaton Corporation’s (“Eaton”) experience and judgment and may not cover all contingencies. If further information is required, an Eaton sales office should be consulted.
Contents SAFETY INFORMATION Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv PRODUCT INFORMATION Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Acceptance and Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
! Safety for life SAFETY FOR LIFE ! SAFETY FOR LIFE Eaton’s Cooper Power Systems products meet or exceed all applicable industry standards relating to product safety. We actively promote safe practices in the use and maintenance of our products through our service literature, instructional training programs, and the continuous efforts of all Eaton’s Cooper Power Systems employees involved in product design, manufacture, marketing, and service.
DANGER All associated apparatus must be de-energized during any hands-on installation or maintenance. Failure to comply will result in death, severe personal injury and equipment damage. WARNING The 600 A DT625 T-body is designed to be operated in accordance with normal safe operating procedures. These instructions are not intended to supersede or replace existing safety and operating procedures.
Installation of connectors IMPORTANT Installation Instructions to be used for 600 A, 15 and 25 kV Class DT625 T-body with shear bolt connector. Please see page 6 for installation instructions using a compression connector. Shear bolt installation procedure Prepare the cable NNote: If concentric neutral cable is not being used, follow cable preparation directions in shield adapter kit. Step 1.
Table 1. Shear Bolt Stripback Dimensions Connector S1 S3 S4 Allen Wrench (mm) Code 5 8 8 Centering Ring with or without in (mm) Length Variable Measurement Name Tolerance A Bushing to Cable (+/-0.25) 2.00 (50.8) 2.00 (50.8) 2.00 (50.8) B Jacket (+/-0.25) 12.00 (304.8) 12.00 (304.8) 12.00 (304.8) C Insulation Shield (+/-0.125) 9.38 (238.2) 9.38 (238.2) 9.38 (238.2) D Conductor (+/-0.125) 2.75 (69.85) 3.38 (85.85) 4.00 (101.6) E Cable Adapter Check Maximum 7.25 (184.
Step 2. Step 4. Remove concentric neutral wires or jacket NNote: Care should be taken to not cut or score the neutral conductors when cutting the cable jacket. Put tape marker in place • Measure 1” (25 mm) from end of insulation shield. (Refer to Figure 5.) • Measure reference length “B” from end of cable. (Refer to Figure 4 and Table 1 to determine variable “B” length. • Wrap two turns of tape to serve as marker for cable adapter location.
Step 7. • Clean insulation thoroughly with solvent dampened rag, wiping from conductor end toward insulation shield. (Refer to Figure 8.) Not Straight Straight Clean insulation NNote: Do not apply solvent directly to cable. Cable Insulation Wipe Insulation bulge Not Straight Straight • Ensure that all traces of conductive residue are removed. Cable Insulation Shield Tape Marker Wiping Direction Major OD flared out Figure 8. Line illustration of insulation cleaning.
Install BOL-T T-body with mating parts Step 9. Install shear bolt connector NNote: Refer to the separate installation instructions supplied with the shear bolt connector. • If the lug is supplied with centering sleeves, check the chart supplied with the lug and determine if a sleeve is required and what the correct color would be. • Wire brush conductor (aluminum only). • Immediately insert the conductor completely into the barrel of the lug and rotate connector to distribute inhibitor.
Compression connector procedure Step 2 Remove concentric neutral wires or jacket Equipment provided NNote: Care should be taken to not cut or score the neutral conductors when cutting the cable jacket. • DT625 T-body Kit includes: • • • • • Measure 12.75” (324 mm) from end of cable. Refer to Figure 15. T-body Cable Adapter Silicone Lubricant Instruction Sheet • For jacketed neutral cable, remove jacket to 12.75” dimension.
Step 5 Step 7. Remove conductor insulation Clean insulation NNote: Do not pencil cable. NNote: Do not apply solvent directly to cable. • Remove insulation exposing bare conductor to length of 4.38” (111 mm). Refer to Figure 17. • Clean insulation thoroughly with solvent dampened rag, wiping from conductor end toward insulation shield. Refer to Figure 19. NNote: Do not unwind conductor strands. • Ensure that all traces of conductive residue are removed. 4.38" ± .
Step 9. Straight Not Straight Install compression connector NNote: Refer to the chart supplied with the crimp connector for tool and die to be used. Cable Insulation Major OD flared out Not Straight Straight bulge Cable Insulation Shield Tape Marker • Wire brush conductor (aluminum only). • Remove protective cap from compression connector. • Insert conductor completely into compression connector and rotate connector to distribute inhibitor. NNote: Connector must be fully seated on cable conductor.
Install BOL-T T-body with mating parts Step 10. Check dimensions • Check length from end of compression connector to top of cable adapter. • Length should be between 6.50-7.25” (165 - 184 mm). Refer to Figure 23. Step 11. Install DT625 T-body • Clean and lubricate outside of cable adapter with lubricant supplied. • Clean and lubricate inside of T-body with lubricant supplied. NNote: If test point T-body is used, insure test point is opposite front plate side of T-body. 6.50-7.
Competing T-body termination Step 12. Install mating product and drain wire • Install mating product and drain wire according to the instruction sheet supplied with the mating product. Figure 25. Typical mating products (from left to right) apparatus bushing, insulated plug, connector plug, T-OP II LRTP, and BT-TAP BLRTP. 600 A 15/26 kV class DT625 T-body installation and cable preparation instructions S600-46-2 July 2014 www.cooperpower.
! SAFETY FOR LIFE Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com Eaton’s Cooper Power Systems Business 2300 Badger Drive Waukesha, WI 53188 cooperpower.com © 2014 Eaton All Rights Reserved Printed in USA Publication No. S600462 Rev 3 (Replaces S600462 Rev 2) Eaton, Cooper Power Systems, T-OP, BOL‑T, and BT-TAP are valuable trademarks of Eaton, in the U.S. and other countries. You are not permitted to use these trademarks without the prior written consent of Eaton.
