P/N 206-370Issue 2

Standard Recommended Procedure 206-370 | Issue 2 | April 2016 | Page 1 of 5

SCA Ground Kit

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1. GeneralThe SCA ground kit (p/n SCA-KT-GND)(Figure 1) is designed to be used in the Corning OptiSheath™ aerial terminals to establish an effective external ground.

2. Carton Contents• (1) 8-inch #6 AWG ground wire• (1) 30-inch #6 AWG ground wire• (1) Brass ground stud• (3) Brass lock washers• (3) Brass hex nuts• (2) Ground clamp assemblies• (4) Hex lock nuts

3. Tools and Equipment Required• 3/8-inch wrench• Vinyl tape• Cable knife

4. InstallationWARNING: Do not install telecommunications equipment or work with telephone wiring during a lightning storm. Telephone lines can carry high voltages from lightning causing electrical shock resulting in severe injury or death.

IMPORTANT: Do not use power tools for installation. Doing so may damage the terminal.

4.1 Install Ground Stud into TerminalStep 1: Remove the bolt from the hanging bracket in the location shown in Figure 2.

IMPORTANT: Verify that the sealing washer (provided with the terminal) is installed between the hanging bracket and the terminal with the rubber side of the sealing washer facing the terminal.

Figure 1

Standard Recommended Procedure 206-370 | Issue 2 | April 2016 | Page 2 of 5

Figure 2

Step 2: From inside the terminal, insert the longer leg of the grounding stud through the wall into the same hole in the hanging bracket where the bolt was removed in Step 1.

Step 3: From the back of the terminal, secure the ground stud using the hardware in the order shown in Figure 3. Tighten each nut to a torque value of 23 in-lb.

Figure 3

SCA-6T24SCA-9T24 or 9T34

SCA-6T24SCA-9T24 or 9T34

Standard Recommended Procedure 206-370 | Issue 2 | April 2016 | Page 3 of 5

4.2 Install Grounding Hardware onto CableInstall grounding hardware onto all cable sheath openings as described.Step 1: Cut a slit into opposite sides of the outer sheath and armor about 5

cm (2 inches) from the end of the sheath (Figure 4). To do this, score the armor with a cable knife (being careful not to damage the inner sheath) and split the sheath by flexing it.

Step 2: Position the grounding clamp base plate under the armor with the stops on the clamp butted against the outside of the armor and sheath. Tap the sheath above the ground clamp base to set the teeth.

Step 3: Position the top plate and lock nut on the outer sheath over the base plate. Tighten nut to a torque value of 23 in-lb using a 3/8-inch wrench to drive the teeth on the upper plate into the sheath.

NOTE: When the cable has metallic strength members, attach the extension bracket as shown in the inset (p/n UCN-GND-SC20, purchased separately) to the base plate before installing the top plate.

Step 4: Wrap the grounding connector and split portion of the sheath with a few wraps of vinyl tape.

Step 5: Attach the ring terminal of the 8-inch ground wire over the top plate. Add a lock nut and tighten to a torque value of 23 in-lb.

4.3 Secure Metallic Strength MembersStep 1: Bend metallic strength members over the slots in the extension

bracket as shown in the inset in Figure 3 and then trim excess strength member.

Step 2: Wrap the yarn, if present, twice in a clockwise direction around the threaded stud.

Step 3: Install restraint cap from the strain-relief kit (provided with your terminal) as shown in Figure 5.

Step 4: Install a washer and nut and tighten securely. Step 5: Repeat for other cables, when applicable.

IMPORTANT: Confirm all buffer tubes are clear of the strength elements prior to securing the restraint cap.

Figure 5

1 2 3 41

StopBase Plate

2

6 cm (2.4 in .)

5

3ExtensionBracket

Top Plate

4Extension bracket not shown.

Extension bracket not shown.

5 cm (2 in)

KPA-0019

Figure 4

Yarn, if present

Metallic strength members

Restraint cap

KPA-0899

Standard Recommended Procedure 206-370 | Issue 2 | April 2016 | Page 4 of 5

4.4 Ground Cable to Terminal4.4.1 Midspan ApplicationsStep 1: Remove the top lock nut from the grounding hardware

on one side of the sheath opening.Step 2: Attach the ring terminal of the 30-inch ground wire

directly on top of the first ring terminal (Figure 6). Replace the lock nut and tighten to a torque value of 23 in-lb.

Step 3: Install the other end of the 30-inch ground wire to the ground clamp attached to the other side of the sheath opening.

Step 4: Route the ground wire around the fiber management area inside the terminal (Figure 7).Step 5: Attach the ring terminal on the 8-inch ground wire to the shorter leg of the ground stud inside the

terminal. Add a washer and a nut and tighten.Step 6: Tighten nut to a torque value of 23 in-lb.

Figure 7

30-inch Ground Wire

Figure 6

SCA-6T24

SCA-9T24-MOD

SCA-9T24 or 9T34

Standard Recommended Procedure 206-370 | Issue 2 | April 2016 | Page 5 of 5

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4.4.2 Endspan ApplicationsStep 1: Place the loose ring terminal of the 8-inch ground wire over the shorter leg of the ground stud inside

the terminal (Figure 8).Step 2: Install a washer and a hex nut onto the ground stud as shown.Step 3: Tighten nut to a torque value of 23 in-lb.

Figure 8