DIRECTORATE OF CIVIL AVIATION

Types of cable trays in civil defense facilities

Explore all types of cable trays—ladder, perforated, basket, solid, and channel. Cable tray systems are engineered support structures designed to route, support, and protect insulated electrical cables used for power distribution, control, instrumentation, and communication. Unlike conduit systems, cable trays allow cables to be laid in bundles, improving accessibility, heat. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. The work covered under this section consists of the furnishing of all necessary labor, supervision, materials, equipment, tests and services to install complete cable tray systems as shown on the drawings.

Configuration Standards for Civil Defense Power Distribution Boxes

The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the DoD Field Activities in. DISTRIBUTION RESTRICTION: Approved for public release; distribution is unlimited. This publication has been prepared under our direction for use by our respective commands and other commands as appropriate. 3 SUBMITTALS Government approval is required for submittals with a "G" designation; submittals not having a "G" designation are. ARMY CORPS OF ENGINEERS NAVAL FACILITIES ENGINEERING COMMAND (Preparing Activity) AIR FORCE CIVIL ENGINEER CENTER Record of Changes (changes are indicated by 1. Date Location This UFC supersedes UFC 3-520-01, dated 3 February 2010, with Change 1. This chapter gives general guidance for the preparation of drawings, specifications, and design analyses as related to electrical aspects of military construction projects.