PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

Painting:
The panels shall undergo chemical derusting, sand blasting, degreasing, pickling in
acid bath and phosphatised as per IS:6005 and primed. The panels shall be
thoroughly rinsed with clean water after phosphating, followed by final rinsing with
dilute bichromate solution and oven drying. The phosphate coating shall be sealed
by the application of two coats of ready mixed, stoving type zinc chromate primer.
Two coats of finishing synthetic enamel paint shall be applied, each coat followed
by stoving. The final finished thickness of the paint film on steel shall not be less
than 100 microns and shall not be more than 150 microns. The colour for the
finishing paint shall be bright battleship grey as per IS:5 (Shade No. 631). The
finished painted appearance of panels shall present an aesthetically pleasing
appearance free from dust and uneven surface.
The paint shall withstand humid tropical climate, rain, etc. The paint shall not scale
of or crinkle or removed by abrasion during normal handling.
Sufficient quantity for touch-up paint shall be furnished for application at site.
15.12 Motor Control Panel.
The motor control panel shall have the following equipments.
- Main switch fuse or MCB, MCCB with required capacity in case of 415V
motor pumps sets.
- ACB or suitable circuit breaker to suit the motor capacity and voltage in case
of HT motor pump sets.
- Motor starter - Auto transformer / Star Delta.
- Contactors
- Single phase preventor
- Ammeter with selector switch
- Voltmeter
- Pilot lamps for indication
- Trip Alarm
- Stop push button
- Start Push Button
GTS : General Technical Specification. Page 111