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GIS B105 & T105 General view. GIS –B105 Clarifications Requirement. to be indicated/clarified with contractor or customer at technical clarifications meeting. Maintenance constraints GIS High Voltage test. 245KV GIS.
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GIS B105 & T105 General view
GIS –B105Clarifications Requirement to be indicated/clarified with contractor or customer at technical clarifications meeting • Maintenance constraints • GIS High Voltage test 245KV GIS
GIS – B105 Some Installation Requirements to be indicated to contractor or customer Space for VT location Space for malt operation Mini distance between BB and wall indicated by GIS
GIS – B105 Some Installation Requirements to be indicated to contractor or customer When basement applies, it is important to clarify the supply of cable tray under the GIS slab as well as the cable runway to enable the GIS low voltage engineering dept to define the necessary length between LCC and GIS apparatus This detail can be added into the GIS Civil work drawing
GIS – B105 Some Installation Requirements to be indicated / clarified with Contractor Data on travelling crane to perform maintenance Minimum distance for maintenance of GIS (to take care if a maintenance truck is proposed)
GIS – B105 Partial Discharge And Dielectric Tests BB1 BB2 Space required for GIS HV test indicated by GIS Supplier EX :TESTING GENERATOR with associated connections usually around 3,5 tons equipment – load for CW
GIS –T155Clarifications Requirementto be indicated / clarified with Contractor or customer at Technical clarifications meeting • Maintenance constraints • GIS High Voltage test 420KV GIS 420KV side
GIS – T155 Some Installation Requirements to be indicated to Contractor or customer A A : Minimum distance for maintenance indicated by GIS Supplier Take into account bending radius, with former to size basement
GIS – T155 Some Installation Requirements to be clarified with contractor during technical clarification Mini distance between BB and wall indicated on GIS drwg Distances between several layers of GIL : indicative value only
to be clarified with contractor during technical clarification GIS – T155 Some Installation Requirements Dilatation joint L>40 m Access door Dismantling space Area for dielectric tests Avoid beam and poles Gas treatment machine
to be clarified with contractor during technical clarification GIS – T155 Some Installation Requirements Crane approach for maintenance to be indicated Distance between LCC and CB indicated by GIS Corridor to move Gas treatment : DILO
(What’s important for the GIS?) OHL Incoming
GIS – T155 Dielectric Test With Outdoor Bushing Space required for GIS test indicated by GIS Supplier To clarify with contractor means type and access to testing zone for testing equipment arrangement Capacitive divider & Transf Testing generator Gantry
GIS – T155 Dielectric Test with Outdoor Bushing 2600 mm 8200 mm 20 tons 5 tons (packed in container) 10 tons (5+5) (container)
GIS – T155 HV Cable Testing GIS manufacturer recommend to avoid supplying of test bushing and advise test following IEC 6207 § 14-2 Cable energised for 24h
GIS – T155 HV Cable Testing Indoor When HV cable test is performed through the GIS, it leads to a different design of the building with major cost impact.
GIS – T155 HV Cable Testing Outdoor Note : To be careful about the surrounding area of the test bushing.
GIS – T155 HV Busduct/Wall The PDC coupler may be positioned at an interface with the wall due to lack of information of position at the beginning of project. It is recommended to check with contractor or customer for this kind of risk during technical clarifications.