Electrical Engineer

All Civil Works related to the support structure in roof & floor need to be completed and proper clear access for bringing in the bus duct should be available.

4. REFERENCE DRAWINGS The drawings to be referred are: a) General Arrangement Drawing of the Respective Location b) Floor Opening Drawings of the Respective Location c) Manufacturer’s O&M Manual d) Manufacturer’s drawings pertaining to handling of Equipment e) Manufacturer’s drawings for the Switchgear Assembl 5. SAFETY a) All personnel shall wear hardhat at all times when at site. b) All personnel and operatives shall wear safety footwear at all times. c) Work areas and access way are to be free from debris, materials and all tripping hazard.

d) All hand tools and portable power tools shall be of good order And shall be used for the purpose intended.

e) All work on Energized Systems shall be done with a Permit to Work System. Proper Earthing / cordoning off to be done prior to Commencement of work, if working in energ ized environment.

1. EQUIPMENTS / TOOLS TO BE USED a) Air blower b) Torque wrench d) Earth tester e) Multimeter 2. PROCEDURE

Examine the drawing of Bus duct erection layout with respect To the general layout.
Shift the Bus duct from stores to location by means of suitable Truck/lifting arrangement.
Carryout physical verification or any possible damage.
Check for necessary lifting tools &tackles in relation with load To be lifted and ensure safe lifting.
Check for the level alignment of the foundation/ structure Before starting the erection.
Assemble Bus duct at site and provide complete supporting Structures as required.
Sections of bus duct installed out door shall be supported from ground.
Indoor sections shall be supported from ceiling and/or wall With GI/MS, brackets /hangers.
Clean all Bus bar joints through with Carbon tetra chloride.
Seal off wall bushings shall be provided where the bus duct Enters a building from its outdoor run as well as from Transformer cell to switch-gear room.

3. CHECKING & TESTING

Tightness of connection of all sections including terminating.
Continuity of all the sections.
Power frequency voltage withstand test as per IS 8084.
Insulation resistance test as per Is 8084.
As per manufacturers test report.