3 Two DN 110 PE electrical ducts in 50m coils on a dual-coil dispensing trailer DN 110 PE electrical ducts with pull heads in place, ready for pull-in by horizontal directional drilling DN 32 PE telecommunication duct in a 500m coil on a coil dispensing trailerTrench Depth 1007mm 150mm Topsoil Trench Width 400mm 32mm 32mm 32mm Trench Width 250mm SURFACE SURFACE 150mm Minimum 300mm cover t epth 120mm Trench Depth 420mm TRENCH CROSS SECTION VIEWS:. Minimun duct horizontal duct spacing 300mm to trench edge during construction clearance is 100mm and NB Use 300mm or 600mm Large Pipelines 600mm 50-75mm minimun. I want 10 feet between each slinky, and if the soil is dry when you. The inside width of the trench body is 3/4" [19. A Trench is a narrow excavation (in relation to its length) made below the surface of the ground. placement of embedment, trench fill and compaction to meet the requirements of drawings and specification. 5 m) to 8 ft (2. 1 SUCTION LINES Pressure drop in the suction line reduces a system’s capacity by forcing the compressor to operate at aENDUCT Smoothwall(or ENDUCT Ribbed) duct is very strong relative to crush resistance, but it has a great deal of memory and can be difficult to embed in a trench in cold weather. excavate or compact trench floor to provide a flat firm base to support bedding material and minimise pipe settlement. Duct Placement Duct may be unreeled directly into trench or along side trench and subsequently placed in trench. D. 950 min. Green – Sewage and drain lines. Threaded Rods . Exercise caution at the start of the Cable Protection Systems 7A Mole Duct Single wall PVC black duct for trenchless applications. The boundary conditions are the same as the above two models. Main Slide Epididymal duct - Epithelium - Smooth muscle - Spermatozoa. Features: 1/2″ O. Required fill factor k (in decimal) 2. The coiled-coil domain-containing (CCDC) proteins have been implicated in a variety of physiological and pathological processes. Immensely strong, it uncoils with ease, lying flat on the ground. The reproductive glands produce secretions that become part of semen, the fluid that is. Find the perfect coils of cable stock photo, image, vector, illustration or 360 image. GSI Coiled Duct (GCD) is a very robust continuous coiled duct solution for cable protection on infrastructure projects. Trenchduct provides for easy lay-in installation of wires and cables with its removable cover plates and is most commonly used as a feeder system for in-floor duct and. The PowerKon QE with electric heating coil delivers high heat outputs in conjunction. 69. GSI Coiled Duct can deliver cost savings now and in the future. , adj ductal. e. 8". HSP Hochspannungsgeräte GmbH and Trench are subsidiaries of Siemens. Flange nuts have a large bearing surface to cover holes and resist vibration. Ridgiduct Power is preferred choice for many distribution network operator (DNO) companies and is available in sizes 100mm, 125mm, 150mm, 225mm and 300mm. Ducts (or conduits) offer a highly protective environment for fiber-optic cables. Emergency Shower Eyewash Detail. Product Comparison Tool Digital Tools and Calculators Specialty Specialty Dura-Line's Speciality Conduits are designed and manufactured to perform to meet application-specfic requirements such as aerial, locatable, providing. Effluent & Drag Hose. and corrosive areas and supply trouble-free operation. Trench Depth 1007mm 150mm Topsoil Trench Width 400mm 32mm 32mm 32mm Trench Width 250mm SURFACE SURFACE 150mm Minimum 300mm cover t epth 120mm Trench Depth 420mm TRENCH CROSS SECTION VIEWS: TRADITIONAL DUCT GSI COILED DUCT Marker Tape As Dug or Class 8 graded material used as back !ll Topsoil GCD Trench 74% smaller GCD Trench design for trial. The trench should provide for a minimum of 100mm duct bed and local soft spots must be removed and replaced with hardcore. High voltage electricity Cables Installation Trenches Electrical new high voltage power lines cable trench been installed in underground. In the background. The coupling is welded to the outside of the first section of trench duct and is fastened to the next piece of trench duct with supplied hardware. 0236-inch (0. Loop Ampli˜er A493 M i c r o p h o n e l i n e t o a m p T NOTE: The illustration above is shown as an example of a perimeter loop, illustrating the principles of how an induction loop system works. 10. 5. A separate overflow drain line shall be connected to the drain pan provided with the equipment. A definition in National Electric Safety Code: NESC Section 32. 4 of this Specification. A Trench is a narrow excavation (in relation to its length) made below the surface of the ground. Coiled tubing drilling (CTD) is a trenchless technique used for drilling re-entry wells, new shallow wells, deepening conventional wells and for drilling under-balanced. A key benefit of using GSI Coiled Duct is the speed and ease with which it. 3. During sexual. Duct is colour coded to customer requirements and can be printed to individual customer specifications. We also provide above ground solutions such as Cable Guards and Hockey. 5mCarlon duct is manufactured from a suitable thermoplastic polymer conforming to the minimum standard of PE334420E/C as defined in ASTM D3350. High compression strength. The coil shall not be set by jerks but shall be handled slowly and care. From Dorland's, 2000. 1 Pump out the water from the cable trench, if necessary 6. Olex 6mm Two Core and Earth Electrical Cable - Per Metre. Slice the metallic outer layer and the insulation around the round flex duct with the knife or shears and lay it back to expose the coiled wires. coiled tube secretory portion duct duct portion with dark staining stratified cuboidal epithelium (bi-layer) palisade of myoepithelial cells (LS) secretory portion with thicker, pale staining bi-layer of cells basement membrane dermis SIMPLE GLANDS coiled tubular eccrine sweat gland with duct twisting to open on the skin surface (TS)An Excavation is any man-made cut, cavity, trench, or depression in an earth surface that is formed by earth removal. GENERAL INFORMATION. 98. Ducting. It’s the very first twinwall surface water drainage system in the UK with Highways Authority Product Approval Scheme (HAPAS) status (up to 900mm). 16. THX Series: In-Floor Convection Trench Heater. 0 – 126. However, whenHigh capacity design supports large wiring for single and multiple service requirements. Step 1: Select the shape of cross-section from the list, i. Both Hardline and Service Drop CIC is available. sogetsu kazama. Our products feature a patented multi-port, center-averaging airflow sensor for quiet, precise performance. Cloud-based software solution. Begin trench layout at a tee, elbow, or center of a run. Underground conduit systems. rolled off a coil and placed in a trench, the trench must be prepared to ensure that the pipe can be laid level and even along its length so as to minimise lateral deflection and deflection from grade. 875 in. They cover what you and your sub-contractors will need to do to reach the quality we expect – from building the ducts and joint boxes, to the internal wiring. 4 Set the cable rollers with spaces of about 1. Conduit & cable duct systems for building & infrastructure applications. The AHU blows air through the cooling coil and provides. Use a shovel to place the soil that you previously dug up back into the trench. Marley Engineered Products offer a wide range of innovative, quality engineered, commercial, industrial, and residential electric comfort heaters and ventilation solutions. The tightly coiled duct found just outside each testis, where sperm mature, is the _____. This is a common question that can be easily confused since both involve the movement and cooling of air. the plans or specifications. 9. 5 and SDR 11 in diameters ranging from 1/2" through 3". 6010 mm) (No. In banks, etc. If for any reason the. 1 Calculations are precise and do not take into account waste or slop. Simply enter in the information below and Construction Monkey will calculate the trench sizes, backfill, and excavation requirements. In general, the depth of a trench is greater than its width, and the width (measured at the bottom) is not greater than 15 ft (4. The coil of duct shall be unloaded either by a crane or by any other suitable means very carefully so as not to cause any damage to the duct. 1. There are 2 common methods for installing HDPE pipe, trench installation and horizontal directional drilling. S. Ctn. Both of these allow the tube to expand and contract and move within the sleeve and still maintain the water-tight seal. As a rule of thumb, a 2,000 sq. These plugs should be installed at the end of each work shift to prevent the entry of foreign. On larger systems, not more than 10 coils usually share the same header before splitting the total number of coils between two–with a few exceptions. The PVS duct spiral pipe manufacturing process begins with (1) prime, hot-dipped, G-90 galvanized steel that is cleaned and fire-treated. The fish line shall be brought out of the duct, left coiled and tied in an accessible location at each end of the duct. The key when using the trencher is to keep the trench depth as even as possible and the width proportional to the ducts or bundles being placed in the trench. The intercalated duct. gov. US$ 750/ton ($213/kW) for. ductus deferensPhase conductors are installed in PVC pipes having an external diameter of 160 mm, with a separation of w p = 25 cm, buried at a depth of d p = 1. (lbs. The trench should not be excavated too far in advance of duct installation. It meets a tube from the seminal vesicle (see below) to form a short tube called the ejaculatory duct. 1. Sanitary drainage equipment, complete trench drain systems. Geothermal Heat Pumps. PW GEO tubing is extruded using high density polyethylene (HDPE) in. This section provides pictures and videos of GSI Coiled Duct, showing various product designs, installation of duct and completed systems. wire fish line shall be installed. Naylor Class 2 Twinwall Duct is available in black or red. Feeder/Voltage Drop Motors Transformers. Now each meter of conductor only needs to clear 28 amps of current. Trench Coil Products. primary chapter 1. 00 general 22. Other cells like apical, narrow, halo and clear cells are also present. Class 3 power ducting is for general applications (450kN compression performance at operating temperatures of 23°C). layer and lay in 2nd layer 300mm Maximum for ESB Networks yellow. 1. It. The second way is to remove the end cap and add 2 feet of duct and re-attach the endcap. Duct access chambers are chambers installed along a ducting installation to provide easy access to the underground pipes/cables in the system for inspection and maintenance purposes. If a person requires hearing assistance and they do not have a t-coil equipped hearing aid, they can use a induction loop receiver to hear the audio. Coils are connected together in parallel on a common supply-return header (manifold). Maximum vertical strut spacing is 4 feet. D. (48 mm). No more than 9 conduits allowed in one trench. . MicroDucts are small diameter conduits ranging from 5-27mm OD that provide a pathway for fiber cables. We manufacture heating and cooling coils for just about any industrial or commercial application. Whalen Vertical Stack Fan Coil Units; Vertical Stack Heat Pumps; Air Cooled Inverter Chillers; Heat Pumps; Oil Free Mag Bearing Air &. Download SPC product literature: brochures, leaflets, IOMs & technical datasheets. (see page 6) Smoothwall is ideal for jetting cable Open Trench Directional Boring Gross Automation (877) 268-3700 · · sales@grossautomation. 9 MB) TD-5453B-002 Updated Separation Requirements For Conduit in Joint Trench (PDF, 3. 5 & 7/4MM DATASHEET - MHT1563 - DIRECT BURY TUBE BUNDLE 10/6MM DATASHEET - MHT1564 - DIRECT BURY TUBE BUNDLE 12/8MM Datasheet - MHT2308 - Direct Bury Tube Bundle 14/10mm DATASHEET - MHT2432 - DIRECT BURY TUBE. Trench Depth 1007mm 150mm Topsoil Trench Width 400mm 32mm 32mm 32mm Trench Width 250mm SURFACE SURFACE 150mm Minimum 300mm cover t epth 120mm Trench Depth 420mm TRENCH CROSS SECTION VIEWS: TRADITIONAL DUCT GSI COILED DUCT Marker Tape As Dug or Class 8 graded material used as back!ll Topsoil GCD Trench 74% smaller GCD Trench design for trial. Line traps. Features of trench duct are as follows: a. 1. 4 – 8. Duct normally required to be 450mm (18”) below ground level Ground level Extend duct clear of foundationstrench, backfill and compaction requirements section 22 - trenching, directional boring, conduit & duct bank table of contents general information 22. Trench heaters are installed around the perimeter of a building usually under a window or glass wall and are very common in new commercial buildings. Put simply, both the duct pipes and trunks are the primary channels that attach to air handler and provide a path for cooled and warmed air to be distributed throughout your home. Description. 1. (Kavanaugh and Gilbreath, 1995; Rafferty, 2001). ASL3/ASL5 Series: Architectural Convection Heater. 100 All Orange 100m 17 125. Example #2. Download. MicroDucts are small diameter conduits ranging from 5-27mm OD that provide a pathway for fiber cables. Ducts are marked appropriately in accordance with the standards requirements. An alternate method should be the use of horizontal duct de-coiler, from which ducts shall be manually unwound and laid along or inside the tranche. Iplex PE Flexible Communications Duct - Non-Chorus Branded (SDR17) Iplex’s range of coiled polyethylene cable duct conforms dimensionally to AS/NZS 4130. The major function of tubules is reabsorption and the process can either be through active transport or passive transport. com Typically, a cable length of 50 to 100 feet is required for splicing purposes; however, the actual cable length may vary depending on the accessibility of the manhole. For large capacity, easy installation and future flexibility, trenchduct is the feeder system of choice for infloor distribution raceways. Trench means 1. Install up to 432 count fiber MicroCables. 08 inches water column (wc);. Seeing is believing. Electrical & Communications Systems. Reinstatement – Infilling and repairing the road or footway surface to its original level and condition. Trench Duct / Floor Duct is a cost effective way of distributing power, Data and Audio Visual cables under your selected floor finish. The coupling is welded to the outside of the first section of trench duct and is fastened to the next piece of trench duct with supplied hardware. Request a quote below, contact us, or call 800-767-1576 and we will be happy to help!False floor fan coil units available for 2-pipe and 4-pipe system. NOTES (CONCRETE REINFORCED DUCT BANK): 1. trench excavation chapter 3. With two drum bar positions to cater for varying inner coil dimensions—2. Prostate glandGalvanized sheet metal pans shall have a thickness of not less than 0. . 1422, a 400-foot-long duct bank (four conduits) is buried in a trench that is 18 inches wide. Co-extruded with SILICORE®ULF permanent lining to reduce friction on cable installs. 400x, 200x. Design and construct duct banks in record time. all around the duct and<br /> increased trench width<br /> The duct installer must minimise the number and severity of preformed bends<br /> in ground with obstructions and other utility service crossings by opening<br /> ground 12m ahead of backfilled duct, wherever practical to do so. Duct Heater. 7°C (44°F) and leave at about 12. Once the duct is properly covered, the fill must be firmly tamped under and around the duct, but must not be heavily impacted. Exhaust Stack Base Detail. Electricity pylon with line traps. The ends of overall lengths of ducts shall be satisfactorily plugged to prevent material ingress into the ducts. The present work is on the fully developed bifurcation structure of the forced convection in a tightly coiled duct of square cross-section (Dean Problem) [1]. Horizontal strut spacing is 4 feet. Step 8 - Final checks of the installation to ensure everything is connected and sealed correctly. Factory Manufactured and Listed Grease Duct; Kampmann Trench Heating; Perimeter Heating and Cooling; Fan Coil Units; Gasketed, Brazed, Semi Welded and Double Wall Plate and Frame Heat Exchangers. The inspector says they have to be seperated because of heat. Depth of. All applicable measures and procedures are to besurrounding the coil. System: Reproductive. It is important that the top of any apparatus is at these depths as a minimum, this includes the top of the duct. The first 12 inches of fill must be carefully shoveled on top of the duct. Our ultra-tough twin wall underground ducting has an HDPE crush resistant corrugated outer wall and a smooth inner wall for easy cable installation. Special characteristics of the Type PWX include: Removable access hatch with integrated hinge to facilitate inspection and maintenance. FuturePath is two or more MicroDucts bundled under an oversheath. Follow. CALIBRE ® Trench Cable Duct. 2. Trench products are installed in every corner of the. 5 Excavation Where road crossing ducts are to be installed via an open trench, the road surface is to be cut using a wet cutting method. Duct Thru Roof Detail. • If the duct is being joined without the provision of an access box at that location, a proper duct coupler (designed for use with the duct to form a water blocking seal) Care must be taken to avoid leaving any sharp edges which could snag the cable during installation. cable chapter 3. Fondital Blitz Super B4 500 mm - Bottom Connection. e. Trench Depth 1007mm 150mm Topsoil Trench Width 400mm 32mm 32mm 32mm Trench Width 250mm SURFACE SURFACE 150mm Minimum 300mm cover t epth 120mm Trench Depth 420mm TRENCH CROSS SECTION VIEWS: TRADITIONAL DUCT GSI COILED DUCT Marker Tape As Dug or Class 8 graded material used as back!ll Topsoil GCD Trench 74% smaller GCD Trench design for trial. 3 Prepare the laying tools, i. Complies with ENA TS 12-24 Class 2 requirements. 18” x π x 9 joints = 509 lineal inches of sealing. This long muscular tube runs from the epididymis into the pelvic cavity behind your bladder and connects to your urethra through a structure called the ejaculatory duct. See cable trench stock video clips. 25” below finished floor level. It is part of the male internal genitalia. An Excavation is any man-made cut, cavity, trench, or depression in an earth surface that is formed by earth removal. Fish tapes are widely available in a range of lengths starting at 25 feet. Start the job faster. Duct Takeoff Details. With the Katherm HK E in 2-pipe design, heating with the integrated electric heating element is possible in addition to the cooling and heating functions provided by the water convector. Stock Flanged Duct Coils. Vertical section of testis showing the head, body, and tail of the epididymis. Add to basket. Available for both RF and RM licensing. Kabel trench/tray adalah perlengkapan yang digunakan untuk jalur pemasangan kabel listrik agar aman dan terlihat rapih. The inside width of the trench body is 3/4" [19. 6 mm). Foreign material lodged in a coil duct can cause electrical failure or overheating. A bushing is an electrical engineering component that insulates a high-voltage conductor passing through a metal enclosure or a building. Water resistant if sealed and can be laid at extreme. AIS 24 KV VH2. Keep your work area tidy with this coiled tubing that extends when you need it and retracts out of the way when you don’t. 5m to to of trefoil roup Examples Of Unacceptable Routes Forest R WARNING. Wall and trench duct is heavily utilized in the healthcare industry. Gasketed cover plates are ordered and shipped separately. Each of the two larger lateral chambers is called a corpus cavernosum (plural = corpora cavernosa). Available HDPE conduits include standard wall, schedules 40 & 80, SDR 13. Trenchers of all types – from portable walk-behind to large chain tractor and wheel/rockwheel types – are used to construct trenches for HDPE duct applications. Oldcastle Infrastructure provides cable Trench solutions for easy access to communication, fiber optic, control, signal, power cables, and wiring. All applicable measures and procedures are to be surrounding the coil. trench configurations 22. Horizontal strut spacing is 4 feet. D. 9 MB) TD-7106P-01 Enhanced Vegetation. You can move the take-off upstream by 24′ which is labor intensive. The Trench and HSP Group is a world leader in power engineering and the design of specialized high voltage electrical products serving customers in the utility and industrial markets around the globe. txt) or read online for free. Description. It bears a striking resemblance to the shell of a snail and in fact takes its name from the Greek word for this object. The IEEE develops its standards through a consensus development process, approved by the American National Standards Institute, which brings together volunteersTrenchduct High-Capacity Feeder System. Applies to trench duct, elbows, crosses, tees, and reducers. PCT continues to form the loop of Henle which ascends to DCT, which in turn opens into the collecting duct. Tub width is trench duct width less 1. Underground utilities may be hidden, but it’s still important to know exactly where they are. This product is minimalist, elegant, and subtle, as well as being highly effective, quiet and a discreet heating solution. Standards: Class 3, Kitemarked, BS EN 61386-24. DUCTS. Overall width (bottom flange to flange) is 3" wider than trench duct width. Duct Data Centers Telecoms Power Moleplough Open Trench . Covers are relocatable to any location along the trench. Consider duct layout in the initial framing design stage to plan for short, straight duct runs wherever possible. epididymis. Protects cables and reduces risk of damage. 630-3. 6756-BS5301. US$ 750/ton ($213/kW) for. direct buried duct bank chapter 5. 1 Trench shall be excavated with minimal cover of 24” over the upper most conduits. 1. 2 RISER MATERIAL Riser shall not be cut with a torch, welded or brazed. 7 Restoration of Trench Areas: Restore the conduit trench construction area to an acceptable condition. Spermatozoa are stored in the lumen of the duct. Their functional roles vary from their interaction with molecular components of signaling pathways to determining the physiological functions at the cellular and organ level. 4 m) in diameter. Other depths available. All stones projecting into the trench bottom shall be removed, and the voids backfilled before conduits are placed. , adj epidi´dymal. With the Katherm HK E in 2-pipe design, heating with the integrated electric heating element is possible in addition to the cooling and heating functions provided by the water convector. From the outside, insert the vent cap and pipe assembly through the hole, then screw it into place. However, whenThe body and tail of the epididymis are filled with the highly coiled duct of the epididymis. Cable total area Ca = sum of area for all cables. The location of the trench varies according to ground condition. 4 Set the cable rollers with spaces of about 1. 1. TRENCH CONSTRUCTION METHODS. The swivel will later attach to the air carrier unit. High compression strength. 8. Our high-quality microducts come in a range of sizes from 3-16mm in diameter. Region: Pelvis. 5m and 1. 0 7. Qty. Our uPVC & PE ducting solutions are manufactured to industry standards, are available in varying sizes, and include a comprehensive range of accessories and ancillary items such as bends, connectors, spacers, access chambers and building entry accessories and seals. Print options available. AIS 24 KV VH2. Duct and the High Temp Clamps required? The OD is just over 1-1/2, the wall is thin. 99 Inc Vat. 2. £102. Approximately 30% to 50% longer for horizontal loops under the same conditions. Trench installation involves digging a trench in which the HDPE pipe is placed, then back-filled after installation. 100 feet /. Highly robust and flexible, it is suitable for all underground cable networks. . To install a vertical loop, a contractor will use well-drilling equipment to bore a 6-8 inch diameter vertical hole in the ground 200-500 feet deep. for pricing and availability. Download. The most common trenchduct application is as a feeder system for other types of infloor raceway such as Walkerduct® Underfloor Duct and Walkercell® Cellular Raceway. Essentially zero radial-voltage stress, with uniformly graded. Couplings to be ordered separately. Green. Cut a 4 1/4-inch diameter hole in the exterior wall. Drip-proof construction provides protection. 125mm HOPE duct -SBN code: 9317552 750 min. Size: 63/50mm 50M: Colour: Black: Brand: Polypipe: Product Name: Polypipe RC63X50BE Black 63mm x 50m Ridgicoil Power DuctingRidgiduct is a twinwall cable protection system, specifically engineered to provide a light yet robust alternative to conventional cable protection. Print options available. Compare Quick view. Duct Cables Duct Cables. The idea is to get as much seperation per coil as possible. Download Free AutoCAD Blocks for HVAC Systems Design dwg. Cable diameter d, giving a cable area, a : a = π 4d2 a = π 4 d 2. Buy any 10+ Save 15% - View Offer. Acetal resins are among the strongest and stiffest of all thermoplastics and are characterised by good fatigue life, low moisture. Polyethylene Water Supply. The PowerKon QE with electric heating coil delivers high heat outputs in conjunction. Browse our products and documents for Trench Duct - Available in unassembled (bottomless and intermittent bottom) and factory-assembled configurations. 2°C (55°F). Subtotal: Add to Cart Compare. Dual prepour adjustment. Fondital Blitz Super B4 600 mm - Bottom Connection. You can have either fabricated easily, however you can only get a cracking range of ancillaries for heating, cooling, demisting, filtering and moving air if you go with standard sizes. 5 ). They are a natural evolution of standard conduits as space in networks is a premium and as new technologies develop, they typically decrease in size. (3 m). Commence above-ground construction sooner. HDPE MicroDucts available from 5mm OD – 27mm OD. Agus ptd. Kabel duct adalah semua jenis kabel yang konstruksinya dirancang khusus untuk dipasang di bawah permukaan tanah dan pemasangannya harus diletakkan dalam pipa-pipa di. Trench World’s largest current limiting reactors supplied more Company Profile in the Energy, Oil & Gas Magazine more Experience our Trench Coil Products Image Film! view. The ducting is supplied on 50 metre coils or cut to length (40 and 50 mm. epididymis. Ideal for working around unidentifiable services and geotechnical features when undertaking repairs, or smaller projects. Products in Electric Cable Ducting: Showing 1 - 23 of 23 products. 3) parasympathetic impulses travel to the internal urethral sphincter and the detrusor muscle. Download. Run chemicals through this tubing at temperatures between -100° F and 500° F. The duct pipes and trunks consist of a number of different components. Trench installation involves digging a trench in which the HDPE pipe is placed, then back-filled after installation. Overwhelming evidence points to the importance of this tissue in transforming spermatozoa leaving the testis as immotile cells, not having the ability to fertilize oocytes, into fully mature cells that have both the ability to swim and to recognize and fertilize. Racking Fiber Optic Cable and Innerduct. Position all trench components for the entire run. Excellent impact resistance at low temperatures. E. Your electricity provider should give you guidelines as to which class of power cable ducting to use in your project. The cochlea is a. The trench should provide for a minimum of 100mm duct bed and local soft spots must be removed and replaced with hardcore. 4 – 8. 6-in Galvanized Steel Round Adjustable 90 Degree Duct Elbow. The duct must be laid in a trench minimum 400 mm below ground level. 00-100 minimum cable cover and separation 22. 5. 8m, the Hexi trailer can also handle 125mm coils up to 150m.