Maintenance Services for Automatic Transfer Switches and Related Items
Non-mandatory pre-bid meeting 03/02/2010.
The contractor shall furnish, and deliver as required, if required, all necessary labor, materials, equipment and transportation to provide maintenance services for automatic transfer switches at various buildings. Annual equipment maintenance will be performed by factory trained, field engineers. If a subcontractor is used by primary vendor, the Department should be notified before rendering any service. No work may be subcontracted unless approved by designated representative.
In accordance with the maintenance checklist and list of covered equipment, when necessary, maintenance will be scheduled for off-hours and weekends. Primary vendor maintenance programs will need to be custom tailored to meet unique requirements.
Maintenance Services - Generally the services to be performed under this contract will include, but not limited to:
1.De-energize the switchgear and engine start signals
2.Secure and lockout normal and emergency disconnects
3.Remove the arc chutes and pole covers
4.Verify and record all sensing and time delay functions in the switchgear
5.Vacuum clean the accumulated dust from the switchgear and accessory panels
6.Inspect for moisture or signs of previous wetness or dripping
7.Remove dirt and grime with an approved solvent
8.Clean and lubricate TS coil and operator linkage
9.Inspect all insulating parts for cracks or discoloration due to excessive heat
10.Inspect all main arcing contacts for excessive erosion
11.Inspect all main current carrying contacts for pitting and discoloration due to excessive heat
12.Perform contact resistance test on normal and emergency main contacts
13.Inspect and clean all add-on panels and accessories
14.Re-install arc chutes and pole covers
15.Manually operate the main transfer movement to check proper contact, deflection gap and wiping action and control contact operation
16.Check all cable and control wire connections to the transfer switch control and sensing panel and other system components and tighten if necessary
17.Reconnect Engine Start
18.Re-energize the switchgear and conduct a test by stimulating a normal source failure allowed
19.Perform mill volt drop readings across normal and emergency main contacts during transfer test
20.Prepare Computer Generated Report of inspection for each piece of equipment and submit to customer
