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8    S&C Instruction Sheet 663-500

Shipping and Handling

Inspection

Examine the shipment for external evidence of damage as 
soon after receipt as possible, preferably before removal 
from the carrier’s conveyance. Check the bill of lading to 
make sure all listed shipping skids, crates, and containers 
are present.

If there is visible loss and/or damage:

1.  Notify the delivering carrier immediately.
2.  Ask for a carrier inspection.
3.  Note condition of shipment on all copies of the delivery 

receipt.

4.  File a claim with the carrier.

If concealed damage is discovered:

1.  Notify the delivering carrier within 15 days of receipt of 

shipment.

2.  Ask for a carrier inspection.
3.  File a claim with the carrier.

Also, notify S&C Electric Company in all instances of 

loss or damage.

Packing

S&C Source-Transfer PMH Pad-Mounted Gear is fastened 
to a wood skid for shipment. Any components specified, 
such as fuses, refill units, fuse holders, end fittings, etc., 
are packed separately and shipped within the enclosure 
if they fit.

At the first opportunity, remove all packing materials 

(cardboard, paper, foam padding, etc.) from the outside of 
the gear. This will prevent the finish from being damaged 
by rainwater absorbed 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 is 
energized, voltage sensor secondary-burden resistors 
generate sufficient heat to help prevent condensation in 
the low-voltage control compartment. If the gear cannot be 
installed immediately, store it in a clean, warm, dry room.

Handling

 WARNING

When handling the gear with an overhead hoist, 
observe standard lifting practices as well as the 

 

following general instructions .
Failure to follow these precautions can result in injury 
and equipment damage .

Follow these steps to lift and move the pad-mounted gear:

STEP  1.  

Make sure the lifting tabs are securely bolted to 
the enclosure before lifting the gear.

STEP  2.  

Use 6-foot (183-cm) or longer hoist slings of 
equal length to prevent overstressing the 
enclosure during lifting.

 WARNING

Because the side of the gear where the low-voltage 
control compartment is located is heavier than the 
other side, the gear will tilt when lifting .
Therefore, care must be taken when lifting the gear 
to avoid injury and equipment damage .

STEP  3.  

Arrange the hoist slings to distribute the lifting 
forces equally between the lifting tabs. See 
Figure 1.

STEP  4.  

Avoid sudden starts and stops.

Figure 1. The hoist sling arrangement.

Low-voltage control 

compartment

Summary of Contents for PMH

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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