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Home / Download Center / Electrical Engineering Books and Technical Guides / Schneider Electric MV/LV Tehnical Guides and Studies / Testing specifications for preventive maintenance of electrical equipment

Preventive maintenance

The scope of work described in this bulletin are recommended practices that are ordinarily used in the field to determine the condition of an electrical power system.

Testing procedures for preventive maintenance of electrical equipment
Testing procedures for preventive maintenance of electrical equipment (photo credit: Schneider Electric)

These practices can form the basis for a comprehensive Electrical Preventative Maintenance (EPM) program, however, they are not intended to be a mandatory practice or applicable and all inclusive for each type of equipment found in modern electrical power distribution systems.

The practices in this document describe “What to Do” and not “How To Do It”. These practices should only be performed by persons that are qualified by experience and training in the proper and safe execution of EPM.

In lieu of a customer specification or other written guidelines, this bulletin details the inspection and testing procedures that Schneider Electric Services technicians follow while performing maintenance testing of electrical equipment.

Schneider Electric’s qualified field service representatives provide comprehensive maintenance and testing services with a scope of work that includes:

  • Equipment inspection
  • Protective device testing
  • Cleaning and lubrication
  • Adjustments
  • Electrical testing, including insulation, current path, system function and other services.

The standard deliverables to the customer are those services described in the each section of these procedures and titled Visual and Mechanical Inspection and Electrical Tests.

For testing of equipment not detailed in this document, Schneider Electric Services will refer to manufacturer’s instructions, NFPA 70B, IEEE, ANSI and other relevant standards. Tables are based on information from Schneider Electric USA, Inc. and the ANSI/NETA Standard for Maintenance Testing Specifications for Electrical Power Equipment and Systems.

Title:Scopes of work for electrical maintenance of electrical distribution equipment – Schneider Electric
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Testing specifications for preventive maintenance of electrical equipment
Testing specifications for preventive maintenance of electrical equipment

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