STANDARD RECOMMENDED PROCEDURE 003-737 | ISSUE 4 | MAy 2015 | PAGE 18 OF 25
10.2.4 Install Strain-relief Hardware
If at least 10 m (33 ft) of outside plant cable is routed within an environmentally controlled
building where temperature fluctuation is minimal, securing the cable sheath is adequate strain-
relief.
Step 1:
Place hose clamp over the cable and strain-relief bar 18 mm (0.75 in) below the
sheath end. Center the sheath retention grip on the opposite side of the cable from
the hose clamp tensioning body (Figure 25).
IMPORTANT:
When using armored cable, install strain-relief bracket(s) to the opposite side (180
degrees) from the location of the grounding clamp. Install the hose clamp and bracket 25
mm (1 in) from the end of the cable sheath to prevent the retention grip from overlapping
the ground hardware.
Step 2:
If there is a central member present,
install the central member restraint
clip as shown in Figure 25:
• Trim the central member flush
with the bottom of the restraint
clip.
• Insert the restraint cap threaded
stud through the hole in the
restraint clip, capturing the central
member between the two.
• Wrap the aramid yarn, if present,
twice in a clockwise direction
around the threaded stud.
• Install a washer and a nut.
Step 3:
Tighten the hose clamp to secure the cable(s) to the strain-relief bar.
Step 4:
Tighten watertight fitting.
IMPORTANT:
The watertight fitting must be tightened to prevent water intrusion into the enclosure.
Figure 26
KPA-0900
Sheath
Retention
Grip
Hose Clamp
Strain-relief Bracket
Braided Tubing
Figure 25
Install Central Member Restraint Clip
1
Position Central
Member Between
Restraint Clip and
Restraint Cap
2
3
Install
Central
Member
Restraint Cap
KPA-0901
