# What are the features of Cabling? Cable routing, cable installation

**URL:** <https://forumautomation.com/t/what-are-the-features-of-cabling-cable-routing-cable-installation/5692>\
**Category:** Electrical\
**Created:** [January 10, 2019, 2:58pm UTC](https://forumautomation.com/t/what-are-the-features-of-cabling-cable-routing-cable-installation/5692 "2019-01-10T14:58:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sivaranjith](https://forumautomation.com/letter_avatar_proxy/v4/letter/s/ba9def/32.png) [@sivaranjith](https://forumautomation.com/u/sivaranjith)\
**Post date:** [January 10, 2019, 2:58pm UTC](https://forumautomation.com/t/what-are-the-features-of-cabling-cable-routing-cable-installation/5692/1 "2019-01-10T14:58:12Z")

</div>

![cable-tray-900x675](https://cdn.forumautomation.com/original/2X/9/910d55dcf6b8e3d24d0c8115e255f5dde963c661.jpg)

The cabling is considered as the installation of the cable connection between different equipment and plants. These are the requirements for cable installation:

- Cable must be flame resistant, suitable for the environment

- Mud resistive where cables need to be routed through mud/oil

- Cable segregation should be done precisely.

- Multi-core cables with collective screens must be standard, individual screens must be used only when necessary.

## Cable routing:

Cable routing is the process of installing cable through the possible shortest path. The cables can be routed through cable ladders and [**cable trays**](https://forumautomation.com/t/what-are-cable-trays-cable-tray-materials-type-of-cable-trays/4262).

Otherwise, cable conduits are used in special purposes which allows mechanical protection for cables, but only for shorter distances. Where conduits are used, they shall be installed with open ends.

 ![cable%20routing](https://cdn.forumautomation.com/original/2X/4/40e87b5c631742b48b0aae21961630043ac3b41a.png)

- There are computer-based cable routing design system which represents the main cable support system, represented by ladder segment references, transit numbers etc.

- The cable tray should not hold many number of cables such that the height of cables should not exceed the height of the tray.

- Redundant cable systems shall be routed separately.

## Cable installation:

- Once a cable has been cut, a protective cap/seal will be applied at the end, when exposed to a humid atmosphere.

- All cable entries and out to equipment located outdoor must be from downside, top entries are not allowed.

- Side entries are allowed, but only provided with drip nose.

- Sufficient spare cable must be provided for equipment that needs future adjustments. Otherwise, the equipment must be disassembled for maintenance and calibration without disconnecting the cable.

- For equipment installed in hazardous areas, the braid shall be earthed at the hazardous end. When using single core cables, additional cables for earthing have to be installed.

- Single core cables should not be installed separately through openings surrounded by magnetic materials.

## Cable Segregation:

Horizontally installed cable ladders must have sufficient space to facilitate towing and rope lashing / securing, minimum clearance of 300 mm between the top of a ladder to the bottom of the next edge of the ladder and from the edge of the ladder. the upper staircase to the ceiling.

Instrument cables that are [**non IS and IS**](https://forumautomation.com/t/what-is-the-difference-between-is-and-non-is-cables/5686/2) must be routed on the same ladders/cable trays. If they are routed in the same ladder/tray, the IS and Non-IS cables, which contain both armor and screen, can be joined in the same package