A cable enclosure is designed to protect its contents (cables, connectors, equipment etc.) against external influences. The structure also acts as a shield to prevent its potentially live contents from causing damage or injury to passersby.
Cable pits are positioned on cable routes to provide branching or bending points and to allow access for jointing and maintenance. Common cables routed through cable pits include data/communication fibre-optic cables and low voltage electrical wiring (higher voltage cables typically go overhead or extremely deep underground).
In contrast, surface cable ducting systems become the cable route and allow low voltage cables and other utilities to be laid directly along a trafficable pavement. They can be continually accessed through removable covers. The structure enclosing the services is typically continuous.
There are various codes governing the use of cable enclosures relevant to both the electrical and communications industries. Dependent on the application, it is ACO’s recommendation that all designers and installers reference these documents or seek further advice from relevant legislative authorities and consulting engineers.