The training set up tool is an additional tool installed along with the training material for the exclusive use of training purposes. It is designed to
automatically build the training project data required for the completion of the "CableTrayModelling" training course.
Navigate to the site named / CABLESITE that you should see in the members window. Add this to the drawlist and select Limits>CE .
Build the Main Branch of the first cabletray.
Select Design>Cable Trays… to load the CableTray application. Refer to the drawing on the next page for positions and components required. The worked example should give enough information to allow you to build it. (This explains how to build the upper tray of the 3. Refer to fig 1 on page 64 whilst following the worked example as each component has an associated reference number ).
Depuis plus d’une décennie, une tendance à la baisse du taux de croissance de la production agricole mondiale a été constatée et, plus particulièrement en ce qui concerne les céréales. En effet, après une progression de 2,3 % par an en moyenne entre 1950 et 1984, les rendements en céréales n’ont augmenté que de 1,8 % par an entre 1980-1984 et de 0,5 % dans les années 1990, soit moins du tiers du taux d’accroissement de la population mondiale. Cette baisse est surtout attribuée à la dégradation accélérée des sols . Cette dégradation des sols va de la pollution à la salinisation causées par l’utilisation abusive de produits chimiques (fertilisants, pesticides etc.), en passant par l’érosion issue des mauvaises pratiques culturales. L’érosion est la forme la plus courante du processus de dégradation des sols. Selon des estimations empiriques faites sur une base annuelle, elle entraîne en moyenne de 5 à 10 tonnes de sol par hectare en Afrique, en Europe et en Australie, de 10 à 20 tonnes par hectare sur tout le continent américain, et près de 30 tonnes par hectare en Asie .
All Ladder Tray Fittings have rungs on 9” centers with 3" tangents for easy fit-up during installation. Each fitting and straight section comes with a pair (2) splice plates and eight (8) 9TBN302 nut and bolt assem- blies, with the exception of 8” & 10” trays that have 8” tangents and 10 bolt splice plates. 8” trays available in 36” & 48” radius. 7” trays in 24” radius. Consult factory for fitting dimensions.
A CE button is provided on the form allowing several components to be positioned without closing the form.
In the following example, BEND 3 will be moved so it has a clearance of 200mm behind the leave Ppoint of BEND 2.
With BEND 3 the CE, select Behind and ID P-Point from the pull-down menu, enter 200mm in the Clearance text box and click Apply . The user will then be prompted to ‘Identify design ppoint’. Select the leave Ppoint of BEND 2 as shown. The elbow moves along its Arrive axis to a position 200mm clear of the selected Ppoint.
A typical typical use use of of volume volume models models may may include include plant plant Civils Civils items items (e.g. (e.g. concrete concrete slabs, slabs, concrete concrete plinths, plinths, site site roads) or the modelling of escape routes/access obstruction volumes. Volume models can also be used as a roads) or the modelling of escape routes/access obstruction volumes. Volume models can also be used as a method of reserving space within the plant layout for equipment items not yet ready for modelling.
1 Deflection measurement point
L Total length of cantilever bracket
W Distance between the mid lines of the contact areas of the ladder on the cantilever bracket Figure 6b – Test set-up for cantilever brackets designed for fixing to walls and for use with cabletray
• Conductor insulation damage is common in conduits since jamming can occur when pulling the conductors. Jamming is the wedging of conductors in a conduit when three conductors lay side by side in a flat plane. This may occur when pulling around bends or when the conductors twist. Ninety-two percent of all conductor failures are the result of the conductor’s insulation being damaged during the conductor’s installation. Many common combinations of conductors and conduits fall into critical jam ratio values. Critical jam ratio (J.R.= Conduit ID/Conductor OD) values range from 2.8 to 3.2. The J. R. for 3 single conductor THHN/THWN insulated 350 kcmil conductors in a 21 / 2 inch conduit
Intermittent Flame Test (HLT -15), rating 100
Flammability Test (ASTM D635) Ignition None Burning Time 0 sec. CableTray Performance Standards & Class Designations Typical Properties of Pultruded Components NEMA Standard 8-10-1986 If unusual temperature conditions exist, the manufacturer should be consulted. After all anticipated loads are calculated they should be added together to obtain a working load. (Example: Working load= Cable + Concentrated+ Wind) see page 5. This working load should be used, along with the maximum support spacing, to select a span/load designation from Table 3.1. The selected load/span designation can be used to specify your requirement. Should a 20C, safety factor 1.5, not be adequate change to safety factor of 2 or decrease support span. There are four support span categories for cabletray: 8=8ft. 12=12ft. 16=16ft. 20=20ft. as well as, three basic working load categories: A=50Ibs/linear ft B=75Ibs/linear ft, C=100Ibs/linear ft. Effect of Temperature Strength properties of reinforced plastics are reduced when continuously exposed to elevated temperatures. Working loads shall be reduced based on the following: Temperature in Approximate Degrees F Percent of Strength 75 100
Provides a rigid support for cabletray at wall penetrations. Overall length of the sleeve is 20". Will fit walls up to 8" thick. Bonding jumpers are not required for use with wall sleeves. Two pairs of splice plates and fasteners are included for tray attachment. designed to fit both Series 1 & 2 systems. Seals off the open end of a cabletray. attaches to the tray using standard 3 / 8 " dia. connector fasteners.
For further work on parameter optimisation, to simulate fire propagation, it is important to have access to data from bench-scale, as well as well documented large scale fire experiments. The former is needed during the optimisation, while the latter is necessary to validate the parameter set’s performance, which is of specific importance. Simulations focusing on micro- and bench-scale alone, as well as neglecting the gas phase reactions seem not to be sufficient to replicate the large scale fire behaviour. To fill gaps within the existing body of experimental data, future test campaigns should start from the CHRISTIFIRE campaign design as a base line. It is suggested by the authors to focus on one single cable to perform all tests with. Tests in the open offer good cases for simulation software, while presenting a rather modest need for computing resources. However, real world installations are often found in confined spaces, close to walls and ceilings. It is therefore necessary to perform similar experiments as the corridor setup presented in phase 2 . Experimental setups with smaller wall sections connected to the trays in the open, similar to FIPEC  or like the ones used by Zavaleta et al. , could serve as an intermediate step.
Galvanized Steel (HDGAF ASTM A123 Class B2) - This hot dipped galvanized steel is used in outdoor, chlorine, acid or caustic areas. Steel trays can have a rough finish (VE 1-2.2.1B) which could cause cable damage. It also adds two to three weeks to delivery time. Trays with mill galvanize steel finish ASTM 653A are the least expen- sive and only recommended for indoor applications.
Maximum platform position for Adduction) VI. DISCUSSION
Using IK calculation, the ideal trajectory of the moving platform for both 3 moving cables and 4 moving cables have been obtained. The inverse kinematics modelling on x-axis, y-axis and z-axis had presented that 3 Moving Cables are sharing the same trajectory as 4 Moving Cables. Therefore it is appropriate to select 3 Moving Cables for fabrication or physical prototyping as it is better than 4 Moving Cables regarding portability (require 3 actuators instead of 4 actuators). The modelling shows that the selection of every feature of a design cannot be determined through qualitative evaluation only such as conceptual design tools. Also, the design variations for each concept must be significantly different to each other concept designs for the tools to become effective .
Type MI Cable: Mineral-Insulated, Metal Sheathed Cable (Article 332). This cable has a liquid and gas tight continuous copper sheath over its copper conductors and magnesium oxide insulation. Developed in the late 1920's by the French Navy for submarine electrical wiring systems, properly installed MI cable is the safest electrical wiring system available. In Europe, Type MI cable has had a long, successful history of being installed (with PVC jackets for corrosion protection) in cable trays as industrial wiring systems. This cable may be installed in hazardous (classified) areas or in non-hazardous (unclassified) areas. The single limitation on the use of Type MI cable is that it may not be used where it is exposed to destructive corrosive conditions unless protected by materials suitable for the conditions. Type MI cable without overall nonmetallic coverings may be installed in ducts or plenums used for environmental air and in other space used for environmental air in accordance with Sections 300.22(B) and (C). Cabletray may be installed as a support for Type MI cable in any location except where the cable is installed in a hoistway. Section 332-30 states that MI cable shall be securely supported at intervals not exceeding 6 feet (1.83 m). Type MI cable has a UL two hour fire resistive rating when properly installed. An installation requirement for this rating is that the cable be securely supported every 3 feet. Steel or stainless steel cable trays should be used to support Type MI cable being used for critical circuit service. During severe fire conditions, steel or stainless steel cabletray will remain intact and provide support longer than aluminum or fiberglass reinforced plastic cable trays.
strategically located in Edmonton, Alberta, and another near Montreal, Quebec - Fast turnaround, custom delivery schedules, local services and support - 80% of products sold in Canada are also manufactured here
For virtually any industry application, Thomas & Betts offers a complete range of wire and cable management solutions.
KWIKSPLICE™ CABLETRAY SYSTEM
Eaton’s B-Line Business revolutionizes the cable management installation process with the new KwikSplice cabletray system focused on the commercial, light industrial, data centers, and government markets. The system features a patent pending splice retention groove I-beam side rail which allows installers to easily guide and snap the splice plate into position. With just two bolts, the installer can secure the connection, and still maintain structural integrity and electrical grounding. Additional accessories, such as the universal fitting, feature a tool-less splice design and easy side panel removal that allows installers to create a horizontal bend, horizontal tee, or horizontal cross. To learn more and to see the video, visit www.cooperbline.com/kwiksplice.
JabelAli Extension, Dubai placed CableTray Support System with Siemens, Germany. These cable trays are to be coated as per DIN EN ISO 12944-1 with 80 micron hot dip galvanizing. Further the same is to be coated with 60 micron epoxy powder primer and 60 micron epoxy powder by electrostatic precipitation method. After coating is completed, investigation (through field inspection and laboratory testing) is carried out to find whether coating is done as per specification. For this purpose, the coated samples were investigated by microscope, Fourier transform infrared spectroscope. It would be interesting to mention that coating with only epoxy polyester powder is found. Keywords: Hot dip galvanizing, Electrostatic precipitation, Microscope, Fourier transform infrared spectroscope, Epoxy polyester.
Because of the nature of broadband (you have to use it to understand the benefits it offers), market take-off requires a certain critical mass of users. Currently, around one in every ten Internet subscribers worldwide has a dedicated broadband connection (Figure 1, top chart), though many more share the benefits of high-speed Internet access, for instance, through a local area network (LAN), at work or at school. The world leader for broadband is the Republic of Korea (Figure 1, lower chart), which is around three years ahead of the global average in terms of converting Internet users to broadband. There, a critical mass was attained as early as 2000, when prices fell below US$ 25 per month; from which point onwards take-off was rapid (see Figure 1, bottom chart). Over 93 per cent of Internet subscribers in Korea use broadband.