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2    S&C Instruction Sheet 663-500

Qualified Persons

 WARNING

Only qualified persons who are knowledgeable in the installation, operation, and 
maintenance of overhead and underground electric distribution equipment, along 
with all associated hazards, may install, operate, and maintain the equipment 
covered by this publication . A qualified person is someone who is trained and  
competent in:
•  The skills and techniques necessary to distinguish exposed live parts from nonlive 

parts of electrical equipment

•  The skills and techniques necessary to determine the proper approach distances 

corresponding to the voltages to which the qualified person will be exposed

•  The proper use of special precautionary techniques, personal protective  

equipment, insulated and shielding materials, and insulated tools for working on 
or near exposed energized parts of electrical equipment

These instructions are intended ONLY for such qualified persons . They are 
not intended to be a substitute for adequate training and experience in safety  
procedures for this type of equipment .

Read this  

Instruction Sheet

NOTICE

Thoroughly and carefully read this instruction sheet and all materials included in the 
product’s S&C Instruction Handbook before installing or operating your S&C Source-
Transfer PMH Pad-Mounted Gear . Familiarize yourself with the Safety Information 
and Safety Precautions on pages 3 through 5 . The latest version of this publication is  
available online in PDF format at 

sandc.com/en/support/product-literature/.

Retain this  

Instruction Sheet

This instruction sheet is a permanent part of your S&C Source-Transfer PMH Pad-Mounted 
Gear. Designate a location where you can easily retrieve and refer to this publication.

Proper Application

 WARNING

The equipment in this publication is only intended for a specific application . The 
application must be within the ratings furnished for the equipment .

Warranty

The warranty and/or obligations described in S&C’s Price Sheet 150, “Standard Conditions 
of Sale–Immediate Purchasers in the United States” (or Price Sheet 153, “Standard 
Conditions of Sale–Immediate Purchasers Outside the United States”), plus any special 
warranty provisions, as set forth in the applicable product-line specification bulletin, 
are exclusive. The remedies provided in the former for breach of these warranties shall 
constitute the immediate purchaser’s or end user’s exclusive remedy and a fulfillment of 
the seller’s entire liability. In no event shall the seller’s liability to the immediate purchaser 
or end user exceed the price of the specific product that gives rise to the immediate 
purchaser’s or end user’s claim. All other warranties, whether express or implied or 
arising by operation of law, course of dealing, usage of trade or otherwise, are excluded. 
The only warranties are those stated in Price Sheet 150 (or Price Sheet 153), and THERE 
ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS 
FOR A PARTICULAR PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION 
PROVIDED IN PRICE SHEET 150 (OR PRICE SHEET 153) IS GRANTED ONLY TO THE 
IMMEDIATE PURCHASER AND END USER, AS DEFINED THEREIN. OTHER THAN AN 
END USER, NO REMOTE PURCHASER MAY RELY ON ANY AFFIRMATION OF FACT OR 
PROMISE THAT RELATES TO THE GOODS DESCRIBED HEREIN, ANY DESCRIPTION 
THAT RELATES TO THE GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN PRICE 
SHEET 150 (or PRICE SHEET 153.)

Introduction

Содержание PMH

Страница 1: ...nstruction Sheet 2 Retain this Instruction Sheet 2 Proper Application 2 Warranty 2 Safety Information Understanding Safety Alert Messages 3 Following Safety Instructions 3 Replacement Instructions and...

Страница 2: ...C Source Transfer PMH Pad Mounted Gear Designate a location where you can easily retrieve and refer to this publication Proper Application WARNING The equipment in this publication is only intended f...

Страница 3: ...autions are not followed NOTICE NOTICE identifies important procedures or requirements that can result in product or property damage if instructions are not followed Following Safety Instructions If y...

Страница 4: ...COMPANY S C 6601 NORTH RIDGE BOULEVARD CHICAGO ILLINOIS AND NEITHER RECEIPT NOR POSSESSION THEREOF INFERS OR TRANSFERS ANY RIGHT IN OR LICENSE TO USE THIS DOCUMENT THE SUBJECT MATTER THEREOF OR ANY D...

Страница 5: ...l circuits and component parts live until completely de energized tested grounded and tagged or properly identified Do not work on or near this equipment unless you 1 Know and obey your employer s wor...

Страница 6: ...ng any device that is to be inspected replaced serviced or repaired in the high voltage compartments 9 MAINTAINING PROPER CLEARANCE Always maintain proper clearance from energized components 10 SWITCH...

Страница 7: ...ons about field programming and opera tion of the Micro AT control refer to S C Instruction Sheet 515 500 These instruction sheets along with a catalog dimensional drawing showing cable locating and a...

Страница 8: ...ed by the packing materials and will also prevent wind induced abrasion from loose cardboard Storage S C Source Transfer PMH Pad Mounted Gear should installed and energized immediately When the gear i...

Страница 9: ...socket wrench or tool when catalog number suffix B1 or B2 is specified to unlatch the Penta Latch Mechanism by rotating the actuator counterclockwise approximately 60 degrees against spring resistanc...

Страница 10: ...latched a padlock may be inserted into the hasp Placement STEP 2 At the installation site remove all separately packaged components shipped in the pad mounted gear enclosure and set them aside in a p...

Страница 11: ...the saddle of the bracket or install the cable wrap until instructed to do so in Step 5 on page 13 Figure 5 Side view of the switch showing the interphase barrier attachment points terminal pad conne...

Страница 12: ...or 14 4 kV 2 57 for 25 kV Minimum clearance from energized parts to barriers 13 for 14 4 kV 1 32 for 25 kV Minimum clearance from energized parts to electrical ground 6 152 for 14 4 kV 7 191 for 25 kV...

Страница 13: ...taping it with a suitable material Two position cable terminator adapters are provided at the fuse hinge assemblies See Figure 7 These adapters can be placed in their alternate positions when require...

Страница 14: ...elleville washers are flat Then back off one half turn Do not use lockwashers with Belleville washers For tinned copper or tinned bronze connectors Use inch galvanized steel hardware with one Bellevil...

Страница 15: ...n accordance with the wiring diagram provided The automatic source transfer scheme will not operate properly when only six current sensors are installed S C Current Sensors STEP 7 Six S C Current Sens...

Страница 16: ...alog number suffix C9 or C10 optional Remote Indication feature catalog number suffix Y4 or optional Supervisory Control feature catalog number suffix Y6 are also located in the terminal block compart...

Страница 17: ...ier support angle at the front of the switch compartment Make sure the clearance from the barriers to energized parts and from the barriers to terminator skirts conforms to the minimum dimensions spec...

Страница 18: ...barriers Prolonged exposure to corona discharge can damage the barriers and result in a flashover injury and equipment damage f Store spare SMU 20 Fuse Units or SM 4 Refill Units as applicable in the...

Страница 19: ...Testing When high voltage dielectric tests will be performed on S C Source Transfer PMH Pad Mounted Gear special precautions should be taken to prevent damage to the voltage sensors and voltage limit...

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