Substation Line End Clamps - CE25
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This document provides specifications for various portable earthing clamps and equipment for substations. It describes 7 different clamps - the CE16/5.5/ESI-L5, CE25, CE50, CE51, CE57, and ESI-T1. For each clamp, it provides details on intended applications, dimensions for tube/conductor diameters, number of leads that can be attached, and amperage and time tested. It also includes diagrams of some clamps and specifications for earth tapes the CE57 clamp can be used with.
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Substation Line End Clamps - CE25
- 1. CE16/5.5/ESI -L5 Fig. 9 CE16/5.5/ESI-L5 For application to aluminium tube 140mm diameter only. Provisions for attachment of three flexible leads as in Fig.13 Tested to 50kA for 3 secs. CE25 Fig. 10 Code CE25 Line End Clamp (Mechanical Aid) Designed specifically for use with mechanical aids to the application of portable earths and to permit the raising of two earthing leads. For application to clean or dirty copper or aluminium tube. Maximum diameter 75mm Minimum diameter 35mm Provision for attachment of two flexible leads as in Fig.13 NOTE: For attachment the operating pole should be rotated with normal firm hand pressure until a definite resistance to further movement is experienced. Tested to 38 kA for 2 secs. CE50&CE51 Fig. 11 CE50 & CE51 CE50 for application to aluminium tube 190 to 200mm diameter and CE51 for application to clean or dirty aluminium tube 140 to 160mm diameter. Provision for attachment of two flexible leads as in Fig, 13. Tested to 38kA for 2 secs. Clamp X Y Z CE50 269 348 493 CE51 240 310 455 CE57 Fig. 12 CE57 Earth Tape Clamp For application to damaged aluminium or copper earth tapes in a clean or dirty condition, ranging from 25 x 3mm to 100 x 6mm. Providing a drain earth before fitting a bridging earth suitable for fault protection. All sizes are in Millimetres SECTION 1 Portable Earthing Equipment For Sub-Stations THORNE AND DERRICK UK – LEAK DETECTION TEL: 0044 (0)191 490 1547 FAX: 0044 (0)191 477 5371 TEL: 0044 (0)117 977 4647 FAX: 0044 (0)117 477 5582 WWW.HEATTRACING.CO.UK WWW.THORNEANDDERRICK.CO.UK e-mail: northernsales@thorneandderrick.co.uk Cable Ends (3) Max width = 133 197 262 Cable Ends Max. width = 133 (5.25”) 368 238 (9.375”) X Z max Max width = 133 Y ESI – T1(x2) 272 - max M10 screws 19 145 - max 45 Conductor Range 100 x 6 max 25 x 3 max 229(9”) P & B WE I R E A R T H I N G E Q U I PME N T C ATA L O G U E 2 0 0 0 5