Operation and Maintenance

DOE-HDBK-1092-98

NRTL-listed parts and UL-recognized components should be used wherever possible. An assembly

of recognized components is not equal to a listed product, but more readily enables an independent

evaluation of the assembly.

All equipment not listed by a NRTL should be constructed according to applicable standards, such

as UL, ANSI, and IEEE. Equipment for which specific standards are unavailable should be

constructed according to the principles of established standards, as determined by the AHJ.

Equipment should be examined for safety as extensively as possible. Areas of consideration include

but are not limited to:

1. Failure modes

2. Heat effects

3. Magnetic effects

4. Grounding and bonding

5. Guarding of live parts

6. Leakage currents

7. Dielectric testing

8. Access to serviceable parts

9. Overcurrent and overtemperature protection

10. Clearances and spacing

11. Interlocks

12. Design and procedural documentation

13. Signage, labels, and administrative controls

14. Mechanical motion

15. Stored energy.

Documentation should be developed to substantiate the acceptance of any equipment. Such

documentation should include but not be limited to:

1. Tests performed

2. Conditions of acceptability

3. Applicable standards to which the equipment was evaluated

4. Limitations of approved use, if any.

10.6 OPERATION AND MAINTENANCE

Maintenance procedures and schedules should be developed for R&D equipment. Electrical

equipment shall be checked, cleaned, and maintained on a schedule and in a manner based on its

application and use. Additional information is referenced in Section 3.0 "Electrical Preventive

Maintenance."

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