8/12/2019 Untitled 151

1/1

Dhofar Power ompany S OGMou MacDonald

The fitting shall be installed strictly in accordance with the manufacturer s instruction on therelevant conductor. A tensile load equivalent to 5 percent of the conductor s minimum ratedstrength shall be applied and the conductor marked such that movement of the individual strandsrelative to the fitting is easily discernible;

2 Without any subsequent adjustment of the fitting, the tension shall gradually be increased to 1percent of the conductor s minimmll rated strength and maintained for 6 s

Acceptance criteria: There shall be no movement of the conductor relative to the fitting due to slip duringthe holding period of 6 s and no failure of the joint shall occur.Prior to the commencement of the test for compression partial tension fittings the performance of thecompression dies shall be checked. The tension fitting shall be installed on the conductor strictly inaccordance with manufacturer s instructions using the full range of compressors and appropriate dieSIzesAcceptance criteria: The dies shall fully close on each bite and the fitting shall remain straight aftercompression, with no damage to the jumper terminal flag or weld.For the heat cycle test partial tension joints shall be classified as class B and subjected to 500 cycles to atemperature of 125C with three short-time over current pUlses9 6 Sample TestsVisual examination, dimensional, materials and finish including that of any coating e.g. galvanising,mechanical and resistance sample tests on all fittings shall be undertaken in accordance with therequirements of this Specification and lEC 61284. Visual examination shall also include comparisonwith archived type test sample.Where specified, similar test procedures to those used for type tests shall be repeated for sample tests.The test samples shall be selected at random from the batch(s) offered and the Owner/Engineer reservesthe right to make the selection. these samples meet all the test requirements, the batch(s) shall bedeemed to comply with the requirements of the Specification. In the event of a sample not meeting thesampling test criteria, the batch(s) shall be deemed not to comply with the requirements of theSpecification.In the case of ground wire bonds sample tests on 1 percent of the batch(s) shall be undertaken.9 6 6 Routine TestsMechanical routine tests shall be undertaken on all castings and to fittings which are fabricated bywelding in which the weld is stressed when the fitting is in service. A tensile load equal to the specifiedminimum specified damage limit shall be applied to the fitting and maintained for 6 sAcceptance criteria: The fitting shall not be damaged by the test9 6 7 Certificates ConformityWhen requested, copies of the following certificates/records shall also be forwarded to theOwner/Engineer: Type Test records, Sample Test records and Routine test records together with thecertificate of Conformity.9 7 PackingFinished fittings shall be adequately protected when packed to avoid damage in shipment. The Contractorshall adopt packing methods that are enumerated in Section 15 as a minimum requirement under thisContract.

Construction of 132kV Overhead line between Awqad GSS SFZ GSS Rev. oand Associated Works Package-1Volume 2 Overhead Line Specification Date : December 2010Section 09 Insulator and Conductor Fittings Page :Page 10 of 16

, . _ _ .. .. _ _ ........._ .. _ 4 .._