Schedule of Accreditation issued by United Kingdom Accreditation Service 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK
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1 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK PO Box Safat Kuwait Contact: Mr Atul Madhukar Vaidya Tel: Fax: Website: Testing performed at the above address only DETAIL OF ACCREDITATION Medium voltage switchgear voltage up to 110 kv b. Impulse withstand voltage Up to 350 kv peak 5 kv/ 950 GΩ Dielectric test on auxiliary and control circuit voltage Up to 4.5 kv b. Insulation resistance test Up to Measurement of resistance of main circuit IEC Edition IEC Edition Assessment Manager: RC3 Page 1 of 5
2 Medium voltage switchgear Temperature rise test Up to 5000 A, 3 phase AC Verification of Degree of protection Mechanical operation test at ambient temperature on circuit breaker, switch and switch-fuse. Mechanical endurance test on disconnector, earthing switch and vacuum contactor Test to prove the satisfactory operation of switchgear, including switching device and removable parts Mechanical operation Tests to prove the strength of gas filled compartment up to 6 bar, gauge pressure Tightness test of gas filled switchgear Partial discharge test Low voltage switchgear Verification of Temperature rise, up to 5000 A, 3 phase AC Verification of dielectric properties voltage up to 4.5 kv b. Impulse withstand voltage up to 20 kv peak Assessment Manager: RC3 Page 2 of 5
3 Low voltage switchgear Verification of clearance and creepage distances Verification of strength of materials and parts (Lifting) Up to 5000 kg Verification of mechanical operation Low voltage bus duct Medium voltage bus duct Verification of Temperature rise Up to 5000 A, 3 phase AC. Verification of dielectric properties: voltage up to 4.5 kv b. Impulse withstand voltage up to 20 kv peak c. Insulation resistance test - Up to Verification of clearance and creepage distances Verification of structural strength Up to 5000 kg Verification of resistance to crushing - up to 5000 kg Temperature rise test Up to 5000 A, 3 phase AC Assessment Manager: RC3 Page 3 of 5
4 Medium voltage bus duct Distribution and Power transformers - Oil filled Cast resin transformers voltage Up to 110 kv b. Impulse withstand voltage Up to 350 kv peak voltage up to 450 kv b. Lightning Impulse voltage/chopped wave - up to 900 kv peak c. Insulation resistance test up to IEC Edition IEC Edition Temperature rise test up to 50 MVA IEC Edition Induced AC voltage test (ACSD) with partial discharge measurement IEC Edition Sound level test IEC Edition Sweep frequency response analysis Measurement of voltage ratio & check of phase displacement IEC Edition Measurement of winding resistance Measurement of oil BDV up to 100 kv Measurement of dissolved gases in oil IEC Edition ASTMD IEC Edition Assessment Manager: RC3 Page 4 of 5
5 Distribution and Power transformers - Oil filled Cast resin transformers Measurement of capacitance and tan δ of oil and transformer Hydraulic pressure deflection / pressure test on transformer and cable box/vacuum deflection Measurement of No load loss and current with testing facility of 1000 kva regulator, 500 kva intermediate transformer ( kv) Measurement of zero phase sequence impedance Measurement of short circuit impedance and load loss with testing facility of 1000 kva regulator, 1000 kva intermediate transformer (1.1 kv to 11.5 kv) and HT capacitor 16.5 MVAR Test on on-load tap changer Leak testing with pressure for oil filled transformer Verification of Degree of protection END Assessment Manager: RC3 Page 5 of 5
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