GENERAL QUALITY ASSURANCE PLAN FOR SUBSTATION
VENDORS / CONTRACTOR AIL CLIENT TPI
ACTIVITY POINT / INSPECTION POINT P A/RD W P RD W P A/RD W P A/RD W
DESIGN & ENGINEERING
- Site Study, Collection of Detailed Site Data / Soil Investigation √ √ √ √ √
- Project / Equipment Design √ √ √ √
- Structural Design √ √
- Foundation Design √ √ √ √
- Design of other Auxiliary Civil Works √ √ √ √
VENDOR/ MANUFACTURER APPROVAL √ √
PLACEMENT OF ORDERS √
INSPECTION OF RAW MATERIAL USED FOR EQUIPMENTS √ √ √ √ √
INSPECTION OF MAJOR EQUIPMENTS / MATERIAL
- Power Transformer √ √ √ √ √ √ √
GIS √ √ √ √ √ √ √
- Circuit Breaker √ √ √ √ √ √ √
- Instrument Transformer √ √ √ √ √ √ √
Page 1 of 5
GENERAL QUALITY ASSURANCE PLAN FOR SUBSTATION
VENDORS / CONTRACTOR AIL CLIENT TPI
ACTIVITY POINT / INSPECTION POINT P A/RD W P RD W P A/RD W P A/RD W
- Disconnectors / Earth Switch √ √ √ √ √ √ √
- 33 kV Indoor Switchgear √ √ √ √ √ √ √
- Surge Arresters √ √ √ √ √ √ √
- Control & Protection Panel √ √ √ √ √ √ √
- Substation SCADA √ √ √ √ √ √ √
- Battery & Battery Charger √ √ √ √ √ √
- DCDB √ √ √ √ √ √
- Earthing/Auxiliary Transformer √ √ √ √ √ √
- Substation Structures √ √ √ √ √ √
- Earthing Material √ √ √ √ √ √
- LT Power, Control & Instrumentation Cable √ √ √ √ √ √
- HT Power Cable √ √ √ √ √ √
- Other Accessories √ √ √ √ √ √
SEAWORTHY PACKING CHECK √ √ √
Page 2 of 5
GENERAL QUALITY ASSURANCE PLAN FOR SUBSTATION
VENDORS / CONTRACTOR AIL CLIENT TPI
ACTIVITY POINT / INSPECTION POINT P A/RD W P RD W P A/RD W P A/RD W
MATERIAL TRANSIT INSURANCE √ √
SITE SAFETY MEASURES √ √
CIVIL WORKS
- Check that cement, sand and aggregate to be used is of mutually agreed quality √ √ √
- Check and ensure that test of design mix for concrete has been got done from a reputed
√ √ √
laboratory
- Check that ratio of ingredients during mixing in the motorized mixer is maintained at site and water
√ √ √ √
used is potable
- Check that form box and stub setting template are correct to be used & are relating to the
Structure for which foundation is to be casted. The adjustment of template may be got made as per √ √ √ √
normal tower or normal tower with extension.
- Check the levels of stubs, back to back distance & distance between diagonals √ √ √ √
- Check that form boxes are thoroughly cleaned and sprayed with fine sand or treated with black /
√ √ √ √
waste before use , every time
- Check that reinforcement steel is properly placed as per drawing. The steel bars to be tied with
√ √ √ √
binding wire at every crossing point
- Check that the pouring of concrete is done without jerks or sudden fall and concrete aggregate
√ √ √ √
vibrated to avoid air bubbles
- Check that pouring of concrete is stopped , if the temperature goes considerably down say Zero
√ √ √ √
Degree C
Page 3 of 5
GENERAL QUALITY ASSURANCE PLAN FOR SUBSTATION
VENDORS / CONTRACTOR AIL CLIENT TPI
ACTIVITY POINT / INSPECTION POINT P A/RD W P RD W P A/RD W P A/RD W
- Check that poured concrete aggregate is periodically vibrated to take out the air bubbles or air
√ √ √ √
voids
- Check that form boxes are stripped /removed only after sufficient time( 24 hours with average
√ √ √ √
temperature of 20 0C or 48 hours in case of rainy season/ low temperature) after pouring of concrete
- Check that any part of the civil structure is not damaged during stripping. If damage is minor ,it
√ √ √ √
should be got rectified / attended. The tolerances of concrete dimensions may also be checked
- Check that foundation pit is back- filled up with soil excavated only in layers ( not more the 300mm)
√ √ √ √
&water added in sufficient quantity for proper compacting
- Check that the level of stubs , back to back distance and distance between diagonals are within
√ √ √ √
the permissible tolerances.
ERECTION WORKS
- Installation of Substation Structures √ √ √ √
- Installation of Power Transformer √ √ √ √
- Installation of GIS √ √ √ √
- Installation of Substation outdoor Switchgear √ √ √ √
- Laying of Cables √ √ √ √
- Installation of Indoor Switchgear Panels √ √ √ √
Page 4 of 5
GENERAL QUALITY ASSURANCE PLAN FOR SUBSTATION
VENDORS / CONTRACTOR AIL CLIENT TPI
ACTIVITY POINT / INSPECTION POINT P A/RD W P RD W P A/RD W P A/RD W
- Installation of Control & Protection Panels √ √ √ √
- Installation of Battery & Battery Charger √ √ √ √
- Laying of Substation Earthing √ √ √ √
- Other Accessories √ √ √ √
PRE TESTING & COMMISSIONING WORK √ √
HANDING / PART HANDING OVER √ √
NOTE:-
P PERFORM
A/RD APPROVE / REVIEW DOCUMENTS
W WITNESS
TPI THIRD PARTY INSPECTION
1. All the equipments/workmanship shall be conforming to internationally recognized norms & standards.
2. This QAP is general purpose however the detailed equipment QAP shall be submitted during execution stage.
Page 5 of 5
