What is a joint bay?
At a glance
A widened spot or pit off the main cable route where a cable joint closure sits, with room for the spare cable loop needed to make and re-make the joint.
Why: Joints need slack cable and a safe, protected place clear of the main route so they can be worked on without disturbing the cables running through.
Where: At each straight or spur joint position, sited outside the main route. DI-SAC routes have their own joint bay arrangements.
Where the rules are
- NR/GN/TEL/30139 cl 6.21siting joint bays outside the main route, closures
- NR/GN/TEL/30139 cl Appendix Ajoint bay arrangement drawings
- NR/GN/TEL/30140 cl 4.4.7joint bay construction
- NR/GN/TEL/30140 cl 4.5retaining walls and platforms for joint bays
- NR/GN/TEL/30140 cl 4.3.7DI-SAC joint bays
What to order
- Joint Closure FIST-GCO2-BC6-NN · Passcom · 483578-000
- Joint kit, Apex X-2S · Hybrid ES · AX-2S-B-L-6-4-0-X-NR
PADS numbers with free sign-up on each part page. More in the parts finder
On the drawing
Each joint position is shown on the SLD; the bay arrangement itself follows the typical arrangement drawings.
- NR/GN/TEL/30139 cl 7.8.5joints to show on the drawing
Also called: jointing bay, joint pit
Guidance in our words. Read the current issue of each standard before you design to it.