Triennial Electrical Inspection - Attachment 2.docx

Scope of Work:

Electrical equipment (including, but not limited to switchgears, switchboards, distribution panels, motor control centers, and all related components) is be inspected, tested, and either maintained, or calibrated . All work must be documented. The National Electrical Testing Association (NETA) provides guidance which is considered best practice for the maintenance of electrical equipment; these practices should be followed to the extent possible. The Contractor shall perform testing and preventive maintenance upon facility electrical components using the most current addition of the National Electrical Testing Association(NETA), Maintenance Testing Specifications. The Contractor is to perform the following tasks :

(a) Use lint-free rags to clean conductors, contact points between the circuit breakers and main buss bars, buss bars and interior of the electrical equipment. Use a vacuum cleaner to remove large debris; compressed air is not to be used for this purpose. Visually inspect for signs of overheating, misaligned contacts, damaged insulation, or lose lugs.

(b) Replace defective or missing panel screws, bolts, fastening devices and hardware with like. Replacement screws/fasteners shall be from the Original Equipment Manufacturer (OEM) or equal. Self-tapping machine screws may be used if OEM screws or equal are not available or if existing screw opening(s) will no longer accept the OEM or equal fastener (COR must approve the use of self-tapping screws). The Contractor shall not mix screw head types and shall match OEM head type whenever possible. Replace / install knock out plugs and filler plates in junction boxes, motor control centers, panels and similar items.

(c) Lubricate all moving parts with manufacturer’s approved lubricants.

(d) Test and exercise circuit breakers located in switchgears, switchboard, and distribution panels to ensure operation under overload, and short circuit conditions. NOTE: All molded case circuit breakers (including frames size 225 amps or less) must be tested to determine if contacts open and reclose when breaker is manually tripped and restored. All panels are to be tested including emergency panels. If no failures are encountered and the test is fully documented.

(e) Test ground fault protection devices for proper function if they are installed in the Facility Electrical Power System.

(f) Inspect and tighten ground connections. Test ground resistance for the entire facility grounding system. Any method of ground resistance must be considered acceptable if it can verify continuity and quantify the impedance to ground, to include but not limited to fall-of-potential, induced frequency, and clamp on testing. If initial tests indicate a problem or concern (e.g., ground resistance greater than 25 ohms), a more detailed test must be performed using fall-of-potential or 3-point test. Where installed, the lightning protection system must be inspected and tested for continuity to ground, ground resistance and certification in accordance with Underwriters Laboratory (UL) standard 96A.

(g) Identify the hot spots in the electrical equipment by using infra-red thermal detecting equipment. Tighten problem connections to meet equipment manufacturers’ specification using a torque wrench or other approved devices. Objective of this work is to detect any loose, broken or corroded connections in the electrical system. Problem connections shall be replaced with new connectors / hardware and or tightened with a torque wrench in accordance with the equipment manufacturer’s specifications.

NOTE: IR Scanning will be classified as work on energized electrical equipment.

(h) Calibrate and maintain adjustable protective relays.

(h) Test all control systems equipment for proper operation after maintenance is performed and before placing them back in normal service.

(i) Perform Arc-Flash calculations and labeling of panels, motor control centers, automatic transfer switches, breakers / disconnects.

(j) All breakers rated at 100 amps or over will be subjected to primary injection to test all aspects of the overload trip functions of the breaker.

(k) Contractor MUST provide secondary backup sources (generators, lights, spider boxes, cables) for areas of the hospital that cannot lose full power.

- Some areas like 5W the ICU, will require a generator placed on campus and cables that connect to the unit

- The cables connect spider boxes and must have at least one spider box per every two rooms.

- There must also be a spider box to support the nurses’ station as well (at least one).

- Extension cords must be placed for each spider box too.

(l) Contractor must provide generator power for the Boiler Plant. Boiler Plant has equipment that can’t lose power and must remain operational for a 12-hour shutdown.

(m) Contractor should provide power support for CLC areas, if full power is lost to the area.

(n) Contractor must provide circuit breaker panel hardware that should be replaced or installed on panels that are missing screws, covers for the dead front, and misc. parts needed for a safe electrical panel.

(o) Contractor must create MOPs for every shutdown and VA must approve them before they can work.

(p) The contractor should be aware and prepared to adjust as needed. Facility needs and operations must be handled and planned.

(q) The contractor must return in the event of a massive impact to the facility (like forgetting to turn on a breaker, leaving something open, etc.