Table of Contents
Foreword
1.Scope
1.1RegulatoryandOtherRequirements
2.Definitions
3.Safetyprocedures
3.1General
3.2SafeWorkPractices
3.3De-energizingElectricalEquipment
4.Delivering,HandlingandStoring
4.1Delivering
4.2Handling
4.3Storing
5.SitePreparation
5.1Location
5.2FoundationPreparation
6.Installation
6.1General
6.2InstallingVerticalSections
6.3JoiningandAnchoringMotorControlCenterSections
6.4ElectricalInterconnectionsBetweenVerticalsections
6.5GroundingandBonding
6.6InstallingConduits
6.7InstallingCablesandConductors
6.8TerminatingConductors
6.9BuswayConnections
6.10InstallingMotorControlUnits
7.ClosingEquipment
7.1Clean-up
7.2InspectionandAdjustment
7.3InsulationResistanceTesting
7.4CircuitBreakersandFusibleSwitches
7.5Ground-FaultProtectionSystems
7.6FinalChecks
8.EnergizingEquipment
8.1General
8.2EnergizingMotorControlCentersandEquipment
8.3OperatingandMaintenanceManuals
9.Maintenance
9.1FrequencyofInspectionandMaintenance
9.2RoutineInspections
9.3Cleaning
9.4Inspection,Maintenance,andTesting
9.5ElectricalTesting
9.6Re-energizingMotorControlCenters
10.AdverseCircumstances
10.1InspectionFollowingaShort-CircuitorGround-Fault
Condition
10.2ReplacingorReconditioningaMotorControlCenter
SubmergedinorSoakedbyWater
10.3InspectingandRe-energizingaMotorControlCenter
SprayedorSplashedwithCleanWater
11.RecommendedTorqueValues
12.MotorControlCenterInsulationResistanceChart
AnnexA:ReferenceStandards Abstract
Describes installation and maintenance practices for motor control centers rated 600 volts or less. Also covers periodic routine maintenance procedures for motor control centers and special procedures to be used after adverse circumstances, such as a short-circuit, ground-fault, or immersion in water.
