Check out 4 packs from Unity Asset Store with tools for creating various ropes, chains, and telephone wires. 

1. Wrapping Rope

A great tool for static ropes from Denis Kirillov. Wrapping Rope goes with no realistic physics, but allows easily create a long rope bending over objects.

Some details:

• Works in the editor
• Profile customizing
• Fore texturing modes
• The body of rope could be rendered as finite segments or procedural mesh
• Elastic and swinging physics

2. Curved Lines System

Create curved lines with a generator from Indie Marc. Curved lines can be created from a defined list of points, and a smooth line can be created with just a few control points. There are three types of lines: 2D line, 3D mesh, chain.

Technical details:

• Converts user-defined control points into a curve
• Generates a mesh following that curve
• Add Materials and Textures
• Optimization parameters
• Lightweight code (only 3 scripts)
• Compatible with Unity Animations
• Compatible with Unity Physics
• Documentation & Support available

3. Obi Rope

Obi Rope system from Virtual Method helps quickly create ropes and set your own parameters of their shape and behavior. The system also uses oriented-particle technology which allows users to create twisting and torsion effects and makes the production more stable by using XPBD particles.

• Non-linear, non-destructive rope editing using splines - get instant feedback on how your rope looks while editing it
• Procedural smooth mesh generation using splines, complete with tangent space updating and normal map support; no need to manually generate geometry for your ropes
• Adaptive curvature-based realtime mesh decimation: straight sections of a rope can generate simpler geometry than curved ones
• Change rope length at runtime
• Tearable/cuttable rope
• Closed loops
• Two-way rigid body interaction and more

4. Wire Builder

Finally, a wire-building tool from Staggart Creations which allows you to easily create suspended electricity and telephone wires. You can add the connectors to GameObjects and create multiple connected wires.

Features:

• Preset-based wire type settings
• Per-wire adjustable sagging
• Adjustable wire resolution per meter
• LineRenderer or MeshRenderer wire generation
• Animated wire shader (Standard/URP)
• Compatible with the 2D scene view
• Vegetation Studio tree and object removal underneath wires