Eaton Pow-R-Line SPX0361126 - Page 427

KS 3-2010
Page i
CONTENTS
Foreword ................................................................................................................................................... ii
Introduction................................................................................................................................................iii
SECTION 1 GENERAL.................................................................................................................................1
1.1 Scope..............................................................................................................................................1
1.2 Referenced Standards....................................................................................................................1
SECTION 2 SAFETY PROCEDURES .........................................................................................................3
2.1 Warning ..........................................................................................................................................3
2.2 Safety Procedure............................................................................................................................3
2.3 Reinstallation Safety Procedure .....................................................................................................3
SECTION 3 GUIDELINES............................................................................................................................5
3.1 To Avoid Damaged or Otherwise Inoperable Switches Being Inadvertently Returned to Service 5
3.2 Guidance Regarding Inspection and Preventive Maintenance Procedures ..................................5
3.3 For Information Regarding Switch Performance and Application ..................................................5
3.4 Water-Damaged Switches..............................................................................................................5
3.5 Switch Inspection Once Each Year................................................................................................5
SECTION 4 INSPECTION PROCEDURES .................................................................................................6
4.1 General...........................................................................................................................................6
4.2 Exposed Surfaces Temperature Check .........................................................................................6
4.3 Inspection of Enclosure Interior......................................................................................................6
SECTION 5 PREVENTIVE MAINTENANCE ...............................................................................................9
5.1 General...........................................................................................................................................9
5.2 Environmental Evaluation...............................................................................................................9
5.3 Fuse Provisions ............................................................................................................................10
5.4 Wire Connectors...........................................................................................................................10
5.5 Reinstallation Procedure ..............................................................................................................10
SECTION 6 TEST PROCEDURES ............................................................................................................11
6.1 General.........................................................................................................................................11
6.2 Mechanical Operation Test...........................................................................................................11
6.3 Insulation Resistance Test ...........................................................................................................12
6.4 Individual Pole Resistance Test (Millivolt Drop) ...........................................................................13
SECTION 7 ACCESSORY DEVICE TEST PROCEDURES......................................................................17
7.1 General.........................................................................................................................................17
7.2 Shunt Trip Release Tests.............................................................................................................17
7.3 Electrical Operator Tests..............................................................................................................18
7.4 Auxiliary Switch Tests...................................................................................................................20
Figure 1 Pitting ..........................................................................................................................................7
Figure 2 Heat Damage..............................................................................................................................7
Figure 3 Typical Insulation Resistance Test Set-Up...............................................................................12
Figure 4 Individual Pole Resistance Test Set-Up....................................................................................14
Figure 5 Fused Switch Individual Pole Resistance Test Set-Up.............................................................14
Figure 6 Non-Fused Switch Individual Pole Resistance Test Set-Up.....................................................15
Figure 7 Sample Shunt Trip Release......................................................................................................17
Figure 8 Sample Electrical Operator / Switch Assembly.........................................................................18
Figure 9 Sample Auxiliary Switch............................................................................................................20
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