Load Break & Non-Load Break Silicone Polymer Cutout Switch Installation Instructions
PRODUCT INFORMATION
Introduction:
Advanced Rubber Products (ARP) interchangeable Cutouts are interchangeable with most manufacturers within the same voltage class and will accept a variety of expulsion fuses. The cutout’s primary function is to interrupt fault or overload current within its rating on a distribution line to protect the electric circuit and/or connected equipment.
Read this first:
Read and understand the contents of this document and follow all locally approved procedures and safety practices before installing or operating this equipment.
Additional information:
These instructions cannot cover all details or variations in the equipment, procedures, or process described nor provide directions for meeting every possible contingency during installation, operation, or maintenance. For additional information, contact your representative.
Acceptance and initial inspection:
Each cutout is in good condition when accepted by the carrier for shipment. Upon receipt, inspect the shipping container for signs of damage. Unpack the ARP Cutout and inspect it thoroughly for damage incurred during shipment. If damage is discovered, file a claim with the carrier immediately.
Handling and storage:
Be careful during handling and storage of the fuse cutout combination to minimize the possibility of damage. If the ARP Cutout is to be stored for any length of time prior to installation, provide a clean, dry storage area.
Standards:
ARP Cutouts are manufactured to ANSI C37.42 standards and are ISO 9001 Certified.
Installation procedure
The ARP Cutout must be properly selected for each installation with consideration to recovery voltage, continuous current, basic impulse insulation level (BIL), and fault interrupting rating.
Mounting the cutout:
1. Securely attach the mounting bracket, if supplied with the cutout, to the crossarm or pole per standard procedure.
WARNING - Do not mount this cutout in vaults or other enclosed areas because of the expulsion emitted during fault interruption when using a fuseholder. The result could be equipment damage to the cutout and other equipment in the vicinity.
WARNING - Do not mount this cutout above vegetation or other combustible materials because of the expulsion emitted during fault current interruption. This could result in a fire hazard.
2. Attach the cutout on the mounting bracket making sure the external-tooth lockwasher is placed between the mounting bracket and the cutout bushing support pin (See Figure 1). Tighten the nut by hand.
3. Rotate the cutout and the mounting bracket to provide maximum clearance for the operator and maximum ease of operation.
Introduction:
Advanced Rubber Products (ARP) interchangeable Cutouts are interchangeable with most manufacturers within the same voltage class and will accept a variety of expulsion fuses. The cutout’s primary function is to interrupt fault or overload current within its rating on a distribution line to protect the electric circuit and/or connected equipment.
Read this first:
Read and understand the contents of this document and follow all locally approved procedures and safety practices before installing or operating this equipment.
Additional information:
These instructions cannot cover all details or variations in the equipment, procedures, or process described nor provide directions for meeting every possible contingency during installation, operation, or maintenance. For additional information, contact your representative.
Acceptance and initial inspection:
Each cutout is in good condition when accepted by the carrier for shipment. Upon receipt, inspect the shipping container for signs of damage. Unpack the ARP Cutout and inspect it thoroughly for damage incurred during shipment. If damage is discovered, file a claim with the carrier immediately.
Handling and storage:
Be careful during handling and storage of the fuse cutout combination to minimize the possibility of damage. If the ARP Cutout is to be stored for any length of time prior to installation, provide a clean, dry storage area.
Standards:
ARP Cutouts are manufactured to ANSI C37.42 standards and are ISO 9001 Certified.
Installation procedure
The ARP Cutout must be properly selected for each installation with consideration to recovery voltage, continuous current, basic impulse insulation level (BIL), and fault interrupting rating.
Mounting the cutout:
1. Securely attach the mounting bracket, if supplied with the cutout, to the crossarm or pole per standard procedure.
WARNING - Do not mount this cutout in vaults or other enclosed areas because of the expulsion emitted during fault interruption when using a fuseholder. The result could be equipment damage to the cutout and other equipment in the vicinity.
WARNING - Do not mount this cutout above vegetation or other combustible materials because of the expulsion emitted during fault current interruption. This could result in a fire hazard.
2. Attach the cutout on the mounting bracket making sure the external-tooth lockwasher is placed between the mounting bracket and the cutout bushing support pin (See Figure 1). Tighten the nut by hand.
3. Rotate the cutout and the mounting bracket to provide maximum clearance for the operator and maximum ease of operation.
Figure 1. Mounting the cutout to the mounting bracket.
4. Securely tighten the carriage bolt nut with a 3/4” wrench.
Connecting electrical leads:
1. Loosen upper and lower cable connectors (See Figure 1).
2. When using aluminum conductors, wire brush conductors and apply a coating of oxidation inhibitor before inserting conductor
into connector.
3. Tighten upper and lower cable connectors to a maximum 20 ft-lbs.
4. Securely tighten the carriage bolt nut with a 3/4” wrench.
Connecting electrical leads:
1. Loosen upper and lower cable connectors (See Figure 1).
2. When using aluminum conductors, wire brush conductors and apply a coating of oxidation inhibitor before inserting conductor
into connector.
3. Tighten upper and lower cable connectors to a maximum 20 ft-lbs.
Installing the proper Fuse into the Fuseholder:
1. Remove the cap from the upper ferrule of the fuseholder assembly.
2. Installing the fuse where an Arc Shortening Rod is required, remove the button head from the fuse link and attach the fuse
to the Arc Shortening Rod with hand tightening.
3. If there is a removable button head on the fuse link, make sure the button is tight. For either case, with, or without an Arc Shortening Rod insert the cable end first, into the top of the fuseholder and pull out at the lower end or in accordance with the fuselink manufacturer’s instructions.
CAUTION - Do not remove or damage the small tube of the fuse link. It is an integral part of the fuse link and removal or damage may result in the cutout’s failure to interrupt.
4. Replace the cap on the upper fuseholder ferrule and tighten with a wrench.
5. Holding the lower end of the fuseholder, rotate the flipper fully about its pivot until it reaches its stop. Hold the flipper in this position and feed the fuse link cable through the flipper channel and feed the cable around the fuse link clamping bolt in a clockwise direction. Make only one turn with the cable. DO NOT OVERLAP. This will prevent strand breakage when the clamping nut is tightened (See Figure 2a.)
6. While maintaining tension of the fuse link cable, tighten the fuse link clamping bolt head with a 9/16” wrench.
7. Cut excess fuse link cable to within 1/2” (13 mm) of the clamping bolt head and discard.
CAUTION - Never insert the excess leader into the cutout fuseholder tube. Doing so may cause improper operation of the fused cutout. This can result in failure of the cutout and damage property in the vicinity of the installation.
1. Remove the cap from the upper ferrule of the fuseholder assembly.
2. Installing the fuse where an Arc Shortening Rod is required, remove the button head from the fuse link and attach the fuse
to the Arc Shortening Rod with hand tightening.
3. If there is a removable button head on the fuse link, make sure the button is tight. For either case, with, or without an Arc Shortening Rod insert the cable end first, into the top of the fuseholder and pull out at the lower end or in accordance with the fuselink manufacturer’s instructions.
CAUTION - Do not remove or damage the small tube of the fuse link. It is an integral part of the fuse link and removal or damage may result in the cutout’s failure to interrupt.
4. Replace the cap on the upper fuseholder ferrule and tighten with a wrench.
5. Holding the lower end of the fuseholder, rotate the flipper fully about its pivot until it reaches its stop. Hold the flipper in this position and feed the fuse link cable through the flipper channel and feed the cable around the fuse link clamping bolt in a clockwise direction. Make only one turn with the cable. DO NOT OVERLAP. This will prevent strand breakage when the clamping nut is tightened (See Figure 2a.)
6. While maintaining tension of the fuse link cable, tighten the fuse link clamping bolt head with a 9/16” wrench.
7. Cut excess fuse link cable to within 1/2” (13 mm) of the clamping bolt head and discard.
CAUTION - Never insert the excess leader into the cutout fuseholder tube. Doing so may cause improper operation of the fused cutout. This can result in failure of the cutout and damage property in the vicinity of the installation.
Figure 2a. Installation of a fuse link into a fuseholder.
Figure 2b. Installation of a fuse link into a arc shortening rod
CAUTION -- Do not use 100 A or smaller fuse links in 200 A fuseholders by using washers or other means. This could result in failure to interrupt.
Installing a Fuseholder in a Loadbreak or Non-Loadbreak Cutout Once the fuse link has been installed
in the fuseholder:
1. Insert the hook stick into the fuseholder’s lifting ring.
2. Place the fuseholder into the hinge of the cutout
3. Remove the hook stick.
WARNING - When closing a Non-Loadbreak Cutout fuseholder, hot gasses and high velocity particles can be expelled from the bottom of the fuseholder if a fault is present. This expulsion could cause serious injury.
4. After positioning himself/herself well clear of the vented end and exhaust path of the cutout, the operator should place the hook stick in the pull ring on the upper ferrule of the fuseholder.
5. Rotate the fuseholder to an intermediate position.
6. While looking away from the cutout, quickly and firmly drive the fuseholder into the closed position.
7. Remove the hook stick from the pull ring carefully to avoid opening the fuseholder.
WARNING - Do not attempt to interrupt load current by pulling on the fuseholder pull ring of a Non-Loadbreak cutout to open the circuit. An arc started by opening a cutout under load in this manner could cause injury or damage to equipment.
Note: The ARP Cutouts are equipped with hooks for use with a loadbreak tool. To open the fuseholder from the cutout, use ONLY an approved loadbreak tool designed for use with cutouts and follow the instructions provided with such tool.
Operation:
When the fuseholder clears a fault, the dropout mechanism should allow it to drop open in the cutout.
WARNING - Only qualified personnel should operate a cutout. Such personnel should always wear appropriate protective equipment such as rubber gloves, hard hats, safety glasses, etc., in accordance with established utility and safety practices.
Removal of a fuseholder
1. Insert a hook stick into the lifting ring of the fuseholder and remove it from the lower contact assembly of the cutout.
2. Remove the fuse link from the fuseholder and follow steps under “Installing an Expulsion Fuse Link in Fuseholder” and “Installing a Fuseholder in Cutout”.
Maintenance
Refer to IEEE Std C37.48™ standard as a general guide for maintenance of the cutout.
1. Periodically inspect the fuse link at the lower open end of the fuseholder for evidence of corrosion.
2. Replace fuse links which show signs of deterioration (broken strands, heavy corrosion, etc).
3. Inspect contacts for excessive pitting or burning and replace as necessary.
4. Check the fuseholder polymer liner for cracking or excessive erosion.
5. If the fuseholder shows any signs of electrical tracking or flashover it should be replaced.
CAUTION -- Do not use 100 A or smaller fuse links in 200 A fuseholders by using washers or other means. This could result in failure to interrupt.
Installing a Fuseholder in a Loadbreak or Non-Loadbreak Cutout Once the fuse link has been installed
in the fuseholder:
1. Insert the hook stick into the fuseholder’s lifting ring.
2. Place the fuseholder into the hinge of the cutout
3. Remove the hook stick.
WARNING - When closing a Non-Loadbreak Cutout fuseholder, hot gasses and high velocity particles can be expelled from the bottom of the fuseholder if a fault is present. This expulsion could cause serious injury.
4. After positioning himself/herself well clear of the vented end and exhaust path of the cutout, the operator should place the hook stick in the pull ring on the upper ferrule of the fuseholder.
5. Rotate the fuseholder to an intermediate position.
6. While looking away from the cutout, quickly and firmly drive the fuseholder into the closed position.
7. Remove the hook stick from the pull ring carefully to avoid opening the fuseholder.
WARNING - Do not attempt to interrupt load current by pulling on the fuseholder pull ring of a Non-Loadbreak cutout to open the circuit. An arc started by opening a cutout under load in this manner could cause injury or damage to equipment.
Note: The ARP Cutouts are equipped with hooks for use with a loadbreak tool. To open the fuseholder from the cutout, use ONLY an approved loadbreak tool designed for use with cutouts and follow the instructions provided with such tool.
Operation:
When the fuseholder clears a fault, the dropout mechanism should allow it to drop open in the cutout.
WARNING - Only qualified personnel should operate a cutout. Such personnel should always wear appropriate protective equipment such as rubber gloves, hard hats, safety glasses, etc., in accordance with established utility and safety practices.
Removal of a fuseholder
1. Insert a hook stick into the lifting ring of the fuseholder and remove it from the lower contact assembly of the cutout.
2. Remove the fuse link from the fuseholder and follow steps under “Installing an Expulsion Fuse Link in Fuseholder” and “Installing a Fuseholder in Cutout”.
Maintenance
Refer to IEEE Std C37.48™ standard as a general guide for maintenance of the cutout.
1. Periodically inspect the fuse link at the lower open end of the fuseholder for evidence of corrosion.
2. Replace fuse links which show signs of deterioration (broken strands, heavy corrosion, etc).
3. Inspect contacts for excessive pitting or burning and replace as necessary.
4. Check the fuseholder polymer liner for cracking or excessive erosion.
5. If the fuseholder shows any signs of electrical tracking or flashover it should be replaced.