Unistruts load and deflection figures are in accordance with ceiiec 61537. The best result of around 50 db was achieved with cable support systems cable. This downloadable program contains an electronic catalog in pdf format adobe acrobat reader required linked with 93. For technical queries with regards to your warranty application please. Electrical raceway and cable routing cad design software. Along with the cable sizing calculation results, this section also displays the required cable sized, cable ampacity, percent of voltage drop, and percent of starting voltage if cable sizing options for the corresponding requirements are checked. The loads which a horizontal cable tray or ladder will be subjected to are shown in fig. The following recommendations are intended to be a practical guide to ensure the safe and proper installation of cable ladder and cable tray systems and channel support and other support systems. These files, which include harrison codes, enable contractors to easily design and estimate their project from conception to fabrication. Bline series software and resources cooper industries. A number of basic decisions must be made before a cable tray system can be specified. X tray calculation tool is a helpful tool where you can calculate how much cable trays cable ladders and additional accessories you will need for a certain project. Cable support solutions cable ladders, tray and supports css. With unmatched quality and service, we offer a variety of styles, materials and finishes available to support virtually any commercial and industrial cable management application requirement.
This link will download cablofil wire mesh cable tray load table in an excel spreadsheet. Xtray calculation tool for cable trays axelent software. Cable trays may be filled 50% when using control or signal wiring. Start with the desired sag, d and calculate tcable for the noniced condition. Deflection theory analysis of different cable profiles for.
Calculate size of cable tray excel sheet electrical. Etap cable sizing study module calculates optimal and alternative cable sizes for phase conductors. Software algorithm for automated cable route optimisation, and calculation of cable length and fill. Register to download itm content files for bline series pipe hanger products that are compatible with autodesk fabrication cadmep. Jennings civil engineering department, queens university, belfast, uk received may 1986 modifications are developed which allow deflection theory to be used to analyse the structural behaviour of suspension bridges in which the deck is supported by two or more cables having different profiles. Using 10% of material costs for tray ii for areas where conduit will be used for safety reasons. Calculate tice, deflection of each post and cable stretch due to ice. Cable tray safe working load test swl electrical safety. Individual rungs will support without collapse a 200 lb. After loading, the deflection should be taken at the points specified to give a practical midspan deflection. Cables on faceup horizontally fixed tray must be secured by use of the tie wraps where not in. Cable tray raceway fill and load calculations electrical. Simply adjust or specify the presented parameter values to get your results.
Deflection of a cable under tension im building a simple pool fence that consists of two horizontal 116 stainless cables under tension at floor level and 4 above floor, with a fabric netting between them similar to a tennis court net. Best practice guide to cable ladder and cable tray systems. Best practice guide to cable ladder and cable tray. Please subscribe techengineer give your wonderful support to us. To change your settings, go to tools macros security and select at least medium. Since then legrandcablofil has become a leader in cable management around the world with more than 94,000 miles of tray installed globally. For the more familiar uniform load w in pounds per foot or pounds per inch, divide the table load by the span.
Cable designers guide how to specify cable insulated conductors specify quantity, gauge, stranding and insulation type for the conductors. Quickly and accurately place cable tray, busway and conduit runs with the ease and flexibility of freeform drawing. Cable tray fill calculator cable tray sizing per the national electrical code article nema 3929b cable tray fill calculations and cable tray sizing calculations will be computed as follows. Support load calculation per iec 61537 deflection deflection will vary over the spans. A braid is the standard coaxial cable outer conductor. Yet another kind of systemcable trayis available in ladder, vented, and solid styles. Cope wire basket inventory harvey, il aickinstrut chino inventory. Special bracketryis designed for various brands of products to be supported in this fashion. Number of multiconductor cables rated 2000 volts or less. For the first time we offer our complete line of cope cable tray products in a single catalog. The hangercad contains a collection of details showing common bline series pipe support applications. As a leader in communications infrastructure, we have built a.
Xtray calculation tool is a helpful tool where you can calculate how much cable trayscable ladders and additional accessories you will need for a certain project. Unistruts load testing is in accordance with ceiiec 61537. Because its vents dissipate heat, the vented type is more suitable for power cables. The required cable size is the largest size from shortcircuit, overload, and shock requirements. Singlecable is a cable calculation software that is extremely simple to use and provides results in seconds, whether the cable is a submain feeder or final circuit. Number of multiconductor cables rated 2000 volts or less in. Consider deflection deflection of the cable tray affects the appearance of an installation, but it is not a structural issue. Cable tray pdms catalogs and specifications eaton teamed with aveva and intergraph content experts to develop bline series cable tray catalogs and specifications. Ry outofplane end reaction, due to deflection of cable, lbs. Home resources calculators simpull cable pull calculator. Deflection is limited to a certain amount by an engineering company for a tray system. Best practice guide to cable ladder and cable tray systems eep.
This tool provides a fast and easy way for choosing power cables by radio power requirements, power trunk and power jumper conductor size, or trunk cable length. Cable tray should be perforated and 20% spare capacity. Electrical integrates dynamic placement with the powerful autorouting features. Ezycalculator is an interactive online tool designed to help you calculate safe loads to spans for steel, aluminium and frp strut and cable support components. Calculate cable tray width calculate cable tray area calculate cable tray length calculate cable tray weight calculate remaining % width of cable tray calculate remaining % area of cable tray free download. Industrial design professionals using plant or smartplant 3d can click below for design content for bline cable tray. Universal has developed a simple sevenstep process to guide you in the process. This document uses macros, so you may have to change your security settings in excel. The left photo of legacy nonrigid cable cleats was taken 1. Cable support systems are an essential part of any large installation. A cable with length 100 ft and a sag 30 ft has a uniform load 850 lbft.
Cable tray support systems should be designed, whenever possible, for minimum installed cost. The companys continued success is the result of ongoing innovation and the ability of wire cable tray to adapt to any application. Cablofil recommended cable load is higher than the maximum allowable cable fill per nec on 8 support spans with less than. These increments should not exceed about a quarter of the swl. Overview of support systems for cable and equipment. Excel containment sizing calculator excel networking. The cable tray institute cti was founded in 1991 to support the cable tray industry by engaging in research, development, education, and the dissemination of. Calculate size of cable tray for following cable schedule. A cable cleat is a cable restraint device sometimes called a cable block, cable bracket or cable clamp that is designed and tested to provide securing and retention of cables. Electrical raceway design and cable routing software. Not required outside diameter cable qty cable size weight lbsft total cable weight. Easily find all your cable sizes and voltage drops. In this video we are going to discuss about cable tray size and perfect tray selected.
Listed below is the maximum cable capacity and recommended load for cablofil wiremesh tray on 8 support spans. Product category please select channel strut tray mesh ladder. Repeat until your estimated value of d is acceptable. Even though a 900 mm wide tray has six 6 times the volume of a 150 mm wide tray, it cannot carry any more cable weight. Cable support systems in the international world it is not uncommon to use either the cable tray or ladder to be used as a means to directly mount lighting fixtures to the support structure. This specification ensures a certain rigidity and levelness of the structure which is important in that instance, but cannot be justified for cable tray systems because of the higher cost involved. For example, if code specifies only a 50percent fill, use a larger tray that allows more leeway instead of a smaller tray. Paneldes software performs cable routing, cable filling and cable length calculations, as well as interference analysis and materials reporting. Use this simple tool to calculate conduit size and fill percentage, pulling tensions, cable sidewall. All you need to do is fill out the required surface treatment, the desired sizes, the types of suspensions and the length of cable trays you need you can add special turns or connections and the tool will help you add the extra. Cable tray size calculation cable tray size techengineer. In the case of nonmetallic cable tray, deflection may be affected by elevated temperatures. Loads under the column headings of span 180, span 240 and span 360 are provided for. Cable tray must be supported on spans shorter than or equal to the length of the cable tray being installed.
Heres how it works, for single or three phase cable calculations, simply. Cable tray or runway averages 50% lower installed cost than conduit. Ezycalculator select your product category, material and type and then use this to determine span, load and deflection data for our products with our handy online calculator. Start with the desired sag, d and calculate t cable for the noniced condition. The first common sense rule is to follow code for cable trays. Maximum allowable cable load per nec 392 cable type. This complete catalog is designed for ease of use and to provide the basic information needed to select the proper cable tray system for your needs.
Once calculated, the program also enables you to look at the results for the next cable size larger or smaller, and the same facility is available for the protective device. Buy package of all unlock electrical software 52 nos at 4900 rs only. Actual depth of cable tray no of layer of cable x maximum diameter of cable. Design of a cable support system is a fairly complex process and needs to take a number of factors into account. Cable management cable tray cable ladder rack eaton. A cable cleat is typically fixed to a mounting surface e. When using solid bottom cable tray, the sum of the cable diameters is not to. The load test is a simple beam, uniformly distributed load test. Inumber of multiconductor cables rated 2000 volts or less in the cable tray 1 40 or larger cables the ladder cable tray must have an inside available width equal to or greater than the sum of the diameters sd of the cables, which must be installed in a single layer. Cope cable tray solutions for your infrastructure requirements welcome to our new products catalog. When piling cable in tray, the required air separation between cables can be maintained by spacing devices eg. Cable trays are like conduit, except they are square and have an opening top.
The quick tray wire mesh cable tray fill table below shows the number of cables and the load in lbflineal foot developed by typical 4 pair and 6 pair cable weighing 20 lbkft and 40 lbkft,respectively. Wire mesh tray technical guide anixter wire and cable. So rigid restrictions on deflection of cable trays installed at eye level or in prominent. Method statement for installation of cable tray or trunking. Put supports in place before there is any deflection of the cable tray route.
While such a specification might make a system using 8foot spans look better, it prohibits use of more economical designs with longer spans which can have much greater deflections. Dec 07, 2014 width of cable tray as per calculation1x1x493 493 mm. While this table is a useful guide,actual loads must be calculated using the cable specified. The deflection in a continuous beam, with negative bending moments at the intermediate support points, is only a fraction of the deflection in simple beam. Paneldes raceway is the 3d cad design module of eds used for the creation of plant raceway models. Cable tray and cable management nema catalog eaton. All you need to do is fill out the required surface treatment, the desired sizes, the types of suspensions and the length of cable trays you need. Eatons bline business is a global provider of innovative, laborsaving cable management systems, support systems, and enclosure solutions for engineered facility subsystem applications. All cable shall be securely fixed to the tray, work and the complete installation must be carried out in a neat and workmanlike manner without crossovers. Etap cable sizing software provides various options which can be used for design requirements. The cable tray shall be installed with a 40mm minimum space between the structure and the tray. The details display complete hanger assemblies, including upper attachments, clamps, hangers, brackets, and floor stands. Any installed cable ladder, cable tray or channel support system can be considered structurally as a loaded beam see fig. Deflection in any location can be reduced by increasing the depth of the loadcarrying side members and or by adding to their crosssectional area.
Axelent softwares userfriendly xtray calculation tool helps you to calculate all accessories needed for the xtray installation. To ensure adequate support, accessories should be supported locally. The use of ventilated cable tray is common for heavier weight cables and. Wire mesh cable tray fill ratio fill ratio cross section of cable cross section of tray according to nec 392. Im building a simple pool fence that consists of two horizontal 116 stainless cables under tension at floor level and 4 above floor, with a fabric netting between them similar to a tennis court net. Best practice guide to cable ladder and cable tray systems photo credit. Deflection theory analysis of different cable profiles for suspension bridges a. Override autoroutes by manually specifying an entire route or set waypoints through which the conductor must pass. The bottom design offers safety and security from unauthorized personnel. Chart is based on 50% fill of 4 utp category 6 cable o. Rx inplane end reaction, due to deflection of cable, lbs. Two basic beam configurations may be found in a typical installation, namely fixed beams and continuous beams.
The horizontal supports and midspan cable forces can be calculated as. Bruce mahrenholz, director north american certification program. These design requirements can be userdefined or automatically determined from load flow, short circuit, and protective device calculation results. Calculate size of cable tray excel sheet electrical notes.
Using the expression for the length of a catenary or parabola check the value of d. Commscope helps design, build and manage wired and wireless networks around the world. Cable sizing software cable sizing calculation etap. Deflection in a cable ladder system is primarily an aesthetic consideration. Cable tray fill calculator use the following formula to calculate the number of cables that will result in a particular fill ratio, where. Data for calculating deflections is presented above. Feb 12, 2018 in this video we are going to discuss about cable tray size and perfect tray selected. The availability of standards and recommendations has simplified the process, and the development of flexible systems allows easy customisation of systems.
Cable tray selection process cable trays manufacturers. Calculated cable tray width 493mm cable tray width 600mm. Moreover design errors, incorrect calculation of cable lengths and missing accessories or optional items are common problems which may give rise to errors during the design or tender. Technical and sizing data unitray cable tray systems.
The horizontal supports and midspan cable forces can be. With a full range of cable support solutions, we offer one of the lowest lifetime cost of ownership. Cable tray safe working load test swl the gradually increase the load longitudinally and transversely up to the test load continuously or in increments. Determine both the 600 volt and medium voltage calculations to estimate and manage cable installation projects. Access a range of file formats and content for specific software solutions here. Offering continuous support of one inch ribs every two inches, with or without ventilation, cable sag and uneven cable point loading is virtually eliminated. The solid type is becoming more common for datacommunications cabling. Now it takes just 5 seconds to calculate cable sizes, this means you can quickly produce precision results every time in full compliance. A cost savings calculator that estimates potential savings based on. As the industry leader in cable tray, eaton offers one of the widest ranges of bline series cable management solutions available in the market today. The most up to date software versions and product data information are always. For calculation of loadings on a cable ladder or cable tray installation, it is important to. The mid span will have less deflection than the end spans and the single spans.
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