Inputs are «insulating gas-air»

The opened inputs of «insulating gas- air» for connection between GIS and VL (or AT) or typical equipment with an air isolation must be equipped in obedience to the enclosed chart.

Inputs must correspond the proper standards of IEC.

Inputs can be with composite insulators or with porcelain insulators.

The level of isolation is applicable to normal the atmospheric terms of placing of SS. Pathlength loss of external isolation of the opened inputs it must be not less than 25 mm/kV.

Insulating switch a busway and his fastenings must be part of supplying with GIS.

Flanec and connection of wires between an input and construction of GIS must correspond the standard of supplier GIS.

CONNECTING OF POWER CABLES

Connection of cable with GIS and proper cables are part of supplying with GIS.

An end cable muff and cable accessories are part of supplying with a producer GIS.

The cable connecting must assume the separation of cable and GIS during the lead through of high-voltage tests.

An interface specification between a supplier GIS and producer of cable must correspond recommendations of IEC.

TESTS

All equipment is offered in accordance with this specification must pass model tests in accordance with last with standards IEC. A producer must give Customer of confirmation of lead through of model tests.

Next model tests must be executed:

protracted possible current and exceeding of temperature;

measuring of resistance a current chain;

tests of circuit-opening and locking ability;

test a brief current and maximal current;

tests on dielectric firmness:

tests of pressure.

All main parts of equipment must pass factory tests on a production.

The planned tests must be conducted, following recommendations of IEC 62271-203.

A producer must give a customer on assertion chart of lead through of the program of certain factory tests.

A producer must send the customer of copy of reports, describing the completed factory tests.

After editing and before starting in exploitation, the tests of isolation of GIS and rightness of work of equipment must be conducted.

Tests must be conducted, following recommendations of IEC 62271-203. Dielectric tests must be conducted, following the point of 10.2.101.1.3 Procedury V. Definition of partial digit it must be executed concordantly IEC 60270.

MARKING, PACKING

Every module cell of GIS must have a tablet with nominal information and information, required IEC 62271-203.

Every measuring transformer must be supplied the tablet with information, required IEC. This tablet of information must be fastened on the second terminal box of every measuring transformer. Inwardly or next to every box there must be a chart of chains of measuring transformer, with all marking of device.

A size of load must be so large, as far as it is practical possibly and must reduce the amount of expenses on works on setting. The cells of switches must be supplied fully mounted, ready for setting in GIS in place. Management closets also must be supplied collected, tested and shipped together with the cell of switch.

The type of the in-use packing must correspond popular facilities of delivery and transporting from a factory-manufacturer to the erection site. The in-use methods of delivery and packing must be given Customer on assertion.

The in-use methods of packing must befit for the protracted storage on working place under a cover, at external climatic terms, prevailing on working place. Into packing GIS must be there is enough absorbent material, to absorb possible surpluses of moisture.

Flange`s of connections of every cell must be protected, to prevent damages and hits of contamination in gas compartments.

Insulating gas for the primary priming of all switching substation must be supplied separately in bulbs, promarked in accordance with international norms. Additional gas must be put, to produce refueling at possible decompression at the primary priming. The packing list of every unit of equipment must represent every detail. Description must identify every detail.

GUIDANCES

For implementation of assembling works and subsequent works by a personnel on service and management, a producer must give next guidance’s:

1. Section of service;

2. Section of tests in place of setting;

3. Section on service and exploitation.

Guidance’s must include the complete list of all drafts, geared-up a producer, list of spare parts and list of parts of every component or part of equipment.