Eaton Tandem ELF Current-Limiting Dropout Fuse Installation Instructions Manual

Also see for COOPER POWER SERIES: Installation and operation instructions Installation instructions Installation instructions Installation and operation instructions Operation instructions

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Eaton Tandem ELF Current-Limiting Dropout Fuse Installation Instructions Manual Manual pdf 8 page image

4Tandem E LF c u r r e n t - l imiting d r o p o u t f u s e installation instru c t ionsINSTALLATION INSTRUCTIONS MN132029EN November 2016! WARNINGDo not attempt to interrupt load current by pulling onthe Tandem ELF fuse pull ring to open the cutout An arcstarted by opening a cutout under load in this mannercould cause injury or damage to equipmentotee:N Interchangeable cutouts are equipped with hooksfor use with a loadbreak tool. To open the TandemELF fuse from the cutout, use ONLY an approvedloadbreak tool designed for use with cutouts andfollow the instructions provided with such tool.Operation and refusing! CAUTIONOnly qualified personnel should operate a cutout Suchpersonnel should always wear appropriate protectiveequipment such as rubber gloves, hard hats, safetyglasses, etc , in accordance with established utility andsafety practices! CAUTIONA Tandem ELF fuse open in a cutout indicates a blownfuse due to an overload or fault condition Faults and/orvisibly failed equipment should be located and repairedbefore refusing a Tandem ELF fuseWhen the Tandem ELF fuse (refer to Figure 6) operates, thefuse will drop open in the cutout.Removal of the tandem ELF fuse1. Insert a hook stick into the lifting eye of the TandemELF fuse and remove it from the hinge of the cutout! CAUTIONIf the Tandem ELF fuse operates for a high current fault,the backup current-limiting fuse may be hot enough tocause burns Wear gloves and handle the Tandem ELFfuse by the fuse link holder to avoid burnsTesting of the backup current-limiting fuseThe backup current-limiting fuse should always be testedafter an operation of the Tandem ELF fuse.1. Perform a continuity check on the backupcurrent-limiting fuse as shown in Figure 7! CAUTIONFailure to check the Tandem ELF’s backup current-limiting fuse may result in placing an operated/damaged fuse back in service This could result inpersonal injury, fire, or equipment damage2. If the backup current-limiting fuse does not havecontinuity, change out the fuses as described in“Refusing the Backup Current-Limiting Fuse” onpage 6. If the fuse does have continuity, skip to“Refusing Fuse Link in Fuse Link Holder” on page 6.Tandem elffuse(Operated)Lifting eyePull ringInsulatorLowerConnectorHingeFigure 6 Tandem ELF fuse in Type L cutout afteroperation