inlet upstream pressure is more than 5 psig (35 kPa) fittings factor 1. 7 of BS7430:2011, the formula for determining k is given which can be calculated based on the initial and final temperatures of the. Copper sheeting comes in thicknesses ranging from very thin copper foil to thick copper plate. 1 x 100 x 150 millivolts = 1. For example, to calculate the resistance of a 250-foot #10-gauge copper wire, multiply length by the constant 10. Obtaining a Value for the Friction Factor A value of the Moody friction factor, f, is needed for any calculations with the Darcy Weisbach equation other than empirical determination of the friction factor by measuring all of the other parameters in the equation. 4 (a constant, ohms per mil foot for copper) A = cross-sectional area in circular mils. National Institutes of Health. Calculation of k Factor. So if the thickness of the sheet was a distance of T = 1 mm and the location of the neutral axis was a distance of t = 0. TABLE 1 - 4 Copper and Aluminum Resistance-Temperature Correction Factors 4 TABLE 1 - 5 AC/DC Resistance Ratios - for Copper and Aluminum Conductors, 60 Hertz (65°C) 5 TABLE 1 - 6 Conductor Resistance and Ampacities at High Frequencies 6 TABLE 1 - 7 Copper Conductor Resistance and Ampacities at High Frequencies 7. The K-factor is defined mathematically as t/Mt, where t is the neutral axis location and Mt is the material thickness. Finding Y-Factor for Sheet Metal Bending. What is K factor in sheet metal? In sheet metal, the K-factor is the ratio of the neutral axis to the material thickness. 138 x 10 -6. 1 are valid for copper TPG lengths of 2 to 10 m, distance from TPG to worker (ground loop depth) D ≥ 2 m, and bus spacing S > 1 m. Obtaining a Value for the Friction Factor A value of the Moody friction factor, f, is needed for any calculations with the Darcy Weisbach equation other than empirical determination of the friction factor by measuring all of the other parameters in the equation. Adjust Q for wind velocity as necessary, by adding 5% for each 5 mph over 20 mph. Copper tube, properly bent, will not collapse on the outside of the bend and will not buckle on the inside of the bend. Best Practices for Proper Application When Using Never-Seez:. The neutral axis does not suffer any change [of] length during a bending. Megabase-In-A-Book. If you don’t know. RL Line resistance per unit length. uses were wrought from copper by early civilizations. 1 ohm * kcmil / 1000 feet. N = NUMBER OF PLATES. K factor for copper. A remnant of this pipe was unearthed some years ago still in usable condition, a testimonial to copper's durability and resistance to corrosion. 40 D feet f ½ ¾ 1 1¼ 1½ 2 0. If the temperature of the wire goes up 10. K-factor = {(180 x BA) ÷ [(π x Complementary Bend Angle x Mt) – (Ir ÷ Mt)]} 2. We can rewrite the formula to give us the k-factor as below: k = q / p0. Megabase-In-A-Book. Copper tube, properly bent, will not collapse on the outside of the bend and will not buckle on the inside of the bend. The K values given below are for making estimates of friction loss in cases not covered in the previous tables. The K factors in Table X. If you need a non-stock item, don't worry. Adjust Q for wind velocity as necessary, by adding 5% for each 5 mph over 20 mph. in feet of straight pipe). Substituting the above values and rearranging the IEC equation slightly, gives: k = 226 ln (1 + θ f − θ i 234. NOTE : The product of two or more prime factors of a number produces another factor. ; If a bend table is assigned to a part, the Bend Allowance is obtained from the table and the assigned bend table file must specify tables for all possible combinations of part thickness and Vee Die width. Wire Table for International Standards Annealed Copper American Wire Gauge (B. Calculate Conductive Heat Transfer ; Calculate Overall Heat Transfer Coefficient. Each of these thicknesses, representing the same weight per unit area of zinc, would be expected to provide equivalent service life; i. The below k-factor chart is not for general use on bolted joints without understanding the variables you may have at your site, and the materials that you are using. Select the appropriate K value for such and select D and f for Schedule 40 pipe from the table below where K is the pipe diameter in feet. Equilibrium is when the rate of the forward reaction equals the rate of the reverse reaction. If the temperature of the wire goes up 10. 20 Coarse Thread Series 1/4 20 859 32 in-lbs 37 in-lbs 43 in-lbs 2029 61 in-lbs 76 in-lbs 86 in-lbs 10 1in-lbs 2864 86 in-lbs 107 in-lbs 122 in-lbs 143 in-lbs 3357 101 in-lbs 126 in-lbs 143 in-lbs 168 in-lbs. The Temperature Coefficient of Copper (near room temperature) is +0. INTRODUCT I ON THE COMPANY Established in 1917, Hammond Power Solutions Inc. The K factor isn't specifically stated in the NEC, but wire sizes and their circular mils and resistance are. A W valley is a type of roof flashing metal. Data subject to change without notice. 41 mm) 400 kgf (1. Window Utilization Factor, Ku The window utilization factor is the amount of copper that appears in the window area of the transformer or inductor. In this condition, the tensile strength is increased from 300 MN m − 2 (fully work-hardened pure copper. The below k-factor chart is not for general use on bolted joints without understanding the variables you may have at your site, and the materials that you are using. The craftsmen who built the great pyramid for the Egyptian Pharaoh Cheops fashioned copper pipe to convey water to the royal bath. , gauge, mil, ounces (per square foot), inches, millimeters. 1 ohm * kcmil / 1000 feet. 9 or very close to it for copper, and 21. 5mm² - 1mm²: BS EN 50525-2-31 - H05V2-K: 300/500V 1. Pipe Size Inches Sch. Sn Transformer kVA rating. Substituting the above values and rearranging the IEC equation slightly,. 4, then divide by the cross-sectional area. When a piece of metal is being formed, the inner portion of the bend compresses while the outer portion expands (see Figure 1). K-Factor Type Three Phase About Tierney Request a quote Neutral Grounding Reactors Transformers Product Catalog Contact Us Search form Search Transformers General Information 600v General Purpose Distribution Type - 600V or moreSingle Phase 15-1000 KVA Three Phase 15-3000 KVA K-Factor Type Three Phase 11 KVA-150 KVA Machine Tool Control Type Options All transformers can have the. 1 x 100 x 150 millivolts = 1. The K factor is defined as the ratio between the material thickness (T) and the neutral fibre axis (t), i. You have 100 feet of 20 gauge wire and its resistance is 1. There exists a transition region between smooth wall flow and fully developed turbulent flow where the value of friction factor is determined by both N Re and k. 1 ), and an IACS electrical conductivity of 102%. 40 D feet f ½ ¾ 1 1¼ 1½ 2 0. This pipe is generally used between water mains and the meter. Friction Loss Tables. Y factor uses the formula Y factor = K factor * (Π/2). RL Line resistance per unit length. 03/14 2345 N. K-factor is a weighting of the harmonic load currents according to their effects on transformer heating, as derived from ANSI/IEEE C57. Winding Material Aluminum conductor and terminations are provided as standard on K-Factor transformers. It is also commonly utilized for heavy-duty vacuum pump lines and underground lines. 4 m/s) for cold water and 5 ft/s (1. 15; No of Bus bar per phase is 2 No's. 250 for fiberglass and 0. κ Factor for calculation of the peak short-circuit current. The window utilization factor is influenced by five main factors: 1. Bronze, hard bronze, cold rolled steel, spring steel, etc. At higher temperatures the mean free path is limited by the phonons, so the thermal conductivity tends to decrease with temperature. AISI 4130 steel is a medium carbon, low alloy steel in ASTM A29 standard. 2 or very close to it for aluminum. Data subject to change without notice. Flexible Rubber Tubing - Smooth. For example 5/8 x 1 fits a 5/8" copper pipe with 1" of insulation. hd) is calculated using the 'K' factor as: Fitting Head Loss = Kv² / 2g. Semi-hard copper or brass, mild steel, aluminium etc. Buy Online: Permatex ® Copper Anti-Seize Lubricant. Below the image shows how the top of the bend is compressed, and the bottom is stretched. 45 x 10^6 (J/Km3) beta = 234. Type K Copper Tubing Type K copper is the thickest type of copper tubing sold on our website. From following table value of de rating factor is 1. On the other hand, in fully developed turbulent flow, for Reynolds numbers over 2,000-2,300 and for a rough pipe, friction factor is a sole function of the pipe's relative roughness. It can be seen from this equation that the d spacing for the 321 reflection will be the same as for, say, the 213 or 312 reflections for cubic symmetry. There are 1. Because of its exceptional formability, copper can be formed as desired at the job site. The K-factor is usually somewhere between 0. NOTE : The product of two or more prime factors of a number produces another factor. Below the image shows how the top of the bend is compressed, and the bottom is stretched. 105 for aluminum. For pure metals such as copper, silver, etc. Formula: L * K / A = R of conductor. in feet of straight pipe). hd) is calculated using the 'K' factor as: Fitting Head Loss = Kv² / 2g. K-factor: 115 (8. Because heat generated by friction is a contributing factor in galling, slowing down the installation speed can prevent galling. 40 D feet f Pipe Size Inches Sch. To calculate Y-factor, you should multiply K-factor by pi and divide the result by two. k = nozzle discharge coefficient or k-factor for head. Y factor uses the formula Y factor = K factor * (Π/2). Fluke 41 & 43), and the K-factor for the. Transformer core obliviously made by Ferromagnetic material and core losses are occurs in core due to voltage(V). 1 ), and an IACS electrical conductivity of 102%. K Factor: K factors are obtained on Grade 8, 1/2” steel bolts and Grade 5 nuts by a test procedure which measures torque tension properties. 9 ohms-cmil/ft and aluminum has a K value of 21. 0129 ohms/kft, suggesting that a conductor of 1 circular mil 1000 ft. Custom cable and custom heat shrink shapes are another of our specialties. The Hevi-Duty K-Factor design is a specialized transformer that offers these benefits: Conductors capable of carrying the harmonic currents of non-linear loads without exceeding the temperature rating of the insulation system. You have 100 feet of 20 gauge wire and its resistance is 1. Type K copper pipe has the thickest wall and highest pressure ratings of the common copper tubing types. Wire lay fill factor, layer or random wound, S2. In alloys the density of the impurities is very high, so l and, consequently k, are small. K-Factor Transformer, also known as K-Rated transformer, is designed for nonlinear or harmonic generating loads that a standard transformer could not adequately handle due to overheating. H = HEIGHT OF CONE. 8 meters in 1000 feet, so the resistivity of copper at 20C is 10. Posted by anonymous 4 days ago. 393 percent per degree C. 97 * 10^9 circular mil per square meter, and 304. Therefore, if the fastener material, thread type (coarse, fine) or assembly (washer, no washer, self-locking) is different to the conditions that the K-Factor was measured under, it may not be valid and care should be taken to ensure that the correct fastener tension is achieved. The default value for Y factor is 0. For a 1-in Type K copper tube, D=0. K factor chart. 105 for aluminum. Coating for steel, copper, copper alloys, zinc and zinc alloys. When transformers use a K-factor value, they are said to be K-rated. 1 x 100 x 150 millivolts = 1. Organic compounds, especially those with a high degree of conjugation, also absorb light in the UV or visible regions of the electromagnetic spectrum. 5mm² - 1mm²: BS EN 50525-2-31 - H05V2-K: 300/500V 1. The K-factor is usually somewhere between 0. Configure the press or other folding tool with your desired tooling and make a 90 degree fold on the bend line. For a 1-in Type K copper tube, D=0. Refer Table 54. L = length in feet. The 'Equivalent length' and 'Internal diameter' must be in the same units to calculate the 'K' factor. Custom cable and custom heat shrink shapes are another of our specialties. Pressure Loss of Water Due to Friction in Types K, L and M Copper Tube (psi per linear foot of tube) (Part 1: ¼ through 2) Table 6 is divided into 2 parts: Part 1: ¼ through 2 | Part 2: 2½ through 12. Data subject to change without notice. ft) K = Torque coefficient or nut factor, determine experimentally F = Clamp load (N, lb. K factor is a ratio between the distance from the neutral bend line to the inside bend radius and the material thickness. Per my finding, the values of above parameters for copper are (although the units are noted to be different from OMS ) :- tau = 3. It seems authour not studied the related formula correctly. A higher K-factor indicates that the eddy current loss in the transformer will be K times the value at the. Then use x and divide by 2 to get a 1/2 wave length. Copper can/mineral glass register (TVM) HF Signal LF Signal (according to K factor for Cyble Sensor Module) Meter range K = 1 K = 2. Wind Factor — Table 3 is based on 20 mph wind velocity. K-Factor- A constant determined by dividing the thickness of the sheet by the location of the neutral axis, which is the part of sheet metal that does not change length. 22 395o 394i 0. These linear thermal expansion coefficients are room temperature values of metals. 393 percent per degree C. Multiply the x/2 by 0. This is one of the lessons of my Course about Solidworks Solid, Sheet metal and Weldments mo. If you have any questions about what size to order, please give us a call at 1-888-365-4364 or email us at [email protected] rglasspipeinsulation. It is also commonly utilized for heavy-duty vacuum pump lines and underground lines. 20 Coarse Thread Series 1/4 20 859 32 in-lbs 37 in-lbs 43 in-lbs 2029 61 in-lbs 76 in-lbs 86 in-lbs 10 1in-lbs 2864 86 in-lbs 107 in-lbs 122 in-lbs 143 in-lbs 3357 101 in-lbs 126 in-lbs 143 in-lbs 168 in-lbs. Megabase-In-A-Book. K = (EL * ff) / i. Securities and Exchange Commission (SEC). Formula: L * K / A = R of conductor. Volt drop = Y x current x length = 1. Copper tube, properly bent, will not collapse on the outside of the bend and will not buckle on the inside of the bend. These linear thermal expansion coefficients are room temperature values of metals. The K factor isn't specifically stated in the NEC, but wire sizes and their circular mils and resistance are. This chart is from ASME PCC-1 (2019) and is a "Target Torque Index. Multiply the x/2 by 0. The K-Factor is measured under a specific set of conditions. 806 m/s² or 32. (1) De rating Factors for Bus bar: (1) Per Phase Bus Strip De rating Factor (K1): Bus bar Width(e) is 75mm and Bus bar Length per Phase(a) is 500mm so e/a is 75/500=0. 1/d 2 = A (h 2 + k 2 + l 2). With this in mind, the two columns above are not always consistent. We have been doing this for companies since 1947. National Institutes of Health. λ Factor depending on the saturation inductance of a generator. The K-factor formula does not take the forming stresses into account but is simply a geometric calculation of the location of the neutral line after the forces are applied and is thus the roll-up of all the unknown (error) factors for a given setup. 97 * 10^9 circular mil per square meter, and 304. 017 x 10–4 m2 (from Appendix H). Available in 16 oz. T = K x F x D T = Torque (N·m, lb. How K- and Y-Factors Affect Metal Bending. The 'K' factor of a fitting may be calculated from the 'Equivalent length' (in m or ft. Wire insulation, S i. The pressure loss through a fitting (m hd or ft. k = nozzle discharge coefficient or k-factor for head. Copper conductors installed in _____ require support at _____ intervals than are required for aluminum conductors. Once you know the K-factor you can identify the location of the neutral axis after bending in addition to how much the material elongates during bending. When copper is alloyed with 2% beryllium and heat treated, very fine precipitates of a strong copper-beryllium compound form. " Long Answer & Explanation of "K factor of transformer " Losses in transformers are generally subdivided into core an. The load experience by a component subject to fatigue loading must not exceed the MODIFIED endurance limit divided by the Stress Concentration factor (K f). This pipe is generally used between water mains and the meter. The neutral axis does not suffer any change [of] length during a bending. 1 ohm * kcmil / 1000 feet. What is K factor in sheet metal? In sheet metal, the K-factor is the ratio of the neutral axis to the material thickness. The K factors in Table X. The below Microsoft Excel chart is for even numbered gauges 8 through 24 and has a default K-Factor of. Megabase-In-A-Book - Episode #25. Type K is most often used to make short threaded-end nipples. Cone Instructions ». ρ20 = electrical resistivity of conductor material. If water temperatures routinely exceeds 140oF - don't exceed 2-3 ft/s (0. 1 ohm * kcmil / 1000 feet. in feet of straight pipe). Pure copper has a K value of 397 W m − 1 K − 1 (see Table 32. 393 percent per degree C. 241 2 Aluminium Conductor 28. Winding Material Aluminum conductor and terminations are provided as standard on K-Factor transformers. 2 Test procedure. k 0 is large, so the thermal conductivity is high. Megabase-In-A-Book. Contains a high percentage of micro-fine copper flakes in a semi-synthetic grease carrier and is fortified with high quality rust and corrosion inhibitors. Transformer winding consists Copper and copper losses are occurs in winding due to current(I). 9 ohms-cmil/ft and aluminum has a K value of 21. Select the appropriate K value for such and select D and f for Schedule 40 pipe from the table below where K is the pipe diameter in feet. Once you know the K-factor you can identify the location of the neutral axis after bending in addition to how much the material elongates during bending. Copper and Aluminum Conductor as well as Open Core Coil / Enclosed Configurations Fully Customizable to meet application specific in-rush, K-Factor, impedance and reactance requirements V&F offers full validation/verification testing in compliance with the 2016 DOE Efficiency Standard Requirements. " Long Answer & Explanation of "K factor of transformer " Losses in transformers are generally subdivided into core an. Using these, you can derive it from the tables in the NEC. In fact, PCC-1 just took out Appendix J which is the Friction Factor Calculation. You'll need the K-factor to find the Y-factor. Thermal conductivity represents the heat flow in watts (W) through a 1 m 2 surface and 1 m thick flat layer of a material when the temperature difference between the two surfaces in the direction of heat flow amounts to 1 Kelvin (K). INTRODUCTION 2 Hammond Power Solutions Inc. Insulation Factor — Table 3 is based on Fiberglas® insulation and a 50°F ΔT. Copper can/mineral glass register (TVM) HF Signal LF Signal (according to K factor for Cyble Sensor Module) Meter range K = 1 K = 2. We will have it made for you. Megabase-In-A-Book - Episode #25. 75 kVA K-Factor Isolation Transformer - 480V Delta Primary - 208Y/120 Wye Secondary - NEMA 3R - K-20. 5 volts across the load and a total of 1. ) (Table modified to display shorter lengths and typical uses) Typical Uses. Because of the specific properties of any given metal, there is no easy way to calculate that value perfectly, hence the chart in Figure 2. where: K= K factor associated with a specific type and size of fitting. Bronze, hard bronze, cold rolled steel, spring steel, etc. 1 ohm * kcmil / 1000 feet. This means if the temperature increases 1°C, the resistance will increase 0. In this condition, the tensile strength is increased from 300 MN m − 2 (fully work-hardened pure copper. If you don’t know. Configure the press or other folding tool with your desired tooling and make a 90 degree fold on the bend line. Tee fittings and spool-type meters are wet-calibrated in the factory before shipping to the customer, and the K-factor appears on a label on each individual fitting or meter. See full list on sheetmetal. 5 volts across the load and a total of 1. Online K-factor calculator for fire sprinklers. The “K” constant is suitable for alternating current circuits, where the conductors do not exceed No. 264 n = number of wires in the conductor d = nominal diameter of the wires in the conductor in mm K 1 = factor depending on the diameter of the wires and the metal, as given in the following table Maximum Diameter of wires in conductor K 1 Above mm Copper Upto and including Plain Copper. Transformer winding consists Copper and copper losses are occurs in winding due to current(I). Assume a 6" angle valve for Schedule 40 pipe size. Transformer transmit high electrical energy so reduce the unite of voltages level engineers used kilo(K) unit for transformer. Thermal Conductivity - k - is the quantity of heat transmitted due to an unit temperature gradient, in unit time under steady conditions in a direction normal to a surface of the unit area. Diameter in Mils. This means if the temperature increases 1°C, the resistance will increase 0. Enter Finished Cone Dimensions: D = DIAMETER OF LARGE END. Just follow these simple steps and it will spit out a K-factor for you to input into your CAD tool. Multiply the x/2 by 0. 4 (a constant, ohms per mil foot for copper) A = cross-sectional area in circular mils. For a 1-in Type K copper tube, D=0. • FRANKLIN PARK, IL 60131– 3432 • 847-455-2300 • FAX 847-455-2371 Email: [email protected] Megabase-In-A-Book - Episode #25. Substituting the above values and rearranging the IEC equation slightly,. 1 ohm * kcmil / 1000 feet. 2 Indoor Cables 83 6. Definition of the K factor: the K factor is the ratio of the neutral layer position thickness (t) of the sheet. 35mm copper conductor PVC SWA PVC cable would be suitable for the loading required, but the voltage drop must be checked. Installation Clearances Eaton’s ventilated transformers should. 40 D feet f Pipe Size Inches Sch. 5 volts where Y = value from tables in mV/A/m Unless a particular value of voltage drop, acceptable to the user, is. K-Factor In US practice, where dry-type transformers are often used, the K-factor is the ratio of eddy current losses when driving non-linear and linear loads: This K-factor is read directly by many power meters (e. The below k-factor chart is not for general use on bolted joints without understanding the variables you may have at your site, and the materials that you are using. Therefore, these two amounts are chosen as k-factor constant values for uncoated copper or aluminum conductors operating at 75C/167F ambient temperatures and rated amperage. A roof valley is a channel created where two different roof slopes meet / where a roof changes direction. 1 Annealed Copper Conductor 17. Per my finding, the values of above parameters for copper are (although the units are noted to be different from OMS ) :- tau = 3. 6 has to be selected for Aluminum and copper respectively. The K-Factor is measured under a specific set of conditions. K factor for copper. T = K x F x D T = Torque (N·m, lb. The pressure loss through a fitting (m hd or ft. K-factor is a weighting of the harmonic load currents according to their effects on transformer heating, as derived from ANSI/IEEE C57. f = frequency in MHz. • FRANKLIN PARK, IL 60131– 3432 • 847-455-2300 • FAX 847-455-2371 Email: [email protected] All values are from published tables, but can't be taken as authoritative. K factor uses the formula K factor = δ/T. L = length in feet. The units which we use are important and much not be mixed. Adjust Q for wind velocity as necessary, by adding 5% for each 5 mph over 20 mph. R = resistance of conductor in ohms. Sn Transformer kVA rating. 5mm² and above*: BS EN 505-2-31 - H07V2-K: 450/750V Temperature Rating UL, CSA: -15°C to +105°C BS 6231: -15°C to +90°C Minimum Bending Radius 6 x overall diameter CONSTRUCTION UL Style Number 1015 Conductor Class 5 flexible copper conductor Insulation PVC (Polyvinyl Chloride. You have 100 feet of 20 gauge wire and its resistance is 1. The k-factor is a constant determined by dividing the location of the shifted neutral axis by the material thickness of the sheet. Finding Y-Factor for Sheet Metal Bending. Normally K factor together will come to. 4 (a constant, ohms per mil foot for copper) A = cross-sectional area in circular mils. 8 Telephone 6. Current density of 1 and 1. Obtaining a Value for the Friction Factor A value of the Moody friction factor, f, is needed for any calculations with the Darcy Weisbach equation other than empirical determination of the friction factor by measuring all of the other parameters in the equation. For example, to calculate the resistance of a 250-foot #10-gauge copper wire, multiply length by the constant 10. 6 has to be selected for Aluminum and copper respectively. Sheet Metal Cone Layout Calculator - Kzell. We can rewrite the formula to give us the k-factor as below: k = q / p0. Without Never-Seez, the amount of torque is between 50-80%. κ Factor for calculation of the peak short-circuit current. Tee fittings and spool-type meters are wet-calibrated in the factory before shipping to the customer, and the K-factor appears on a label on each individual fitting or meter. When a piece of metal is being formed, the inner portion of the bend compresses while the outer portion expands (see Figure 1). Never-Seez Pure Nickel reduces torque by 15%, and Mariner’s Choice requires 41% less torque. Insulation Factor — Table 3 is based on Fiberglas® insulation and a 50°F ΔT. Copper and Aluminum Conductor as well as Open Core Coil / Enclosed Configurations Fully Customizable to meet application specific in-rush, K-Factor, impedance and reactance requirements V&F offers full validation/verification testing in compliance with the 2016 DOE Efficiency Standard Requirements. 54 384e 3943 100. x = wavelength. Can be similar in color to stainless steel, or can be a dull gray or light gray (almost white). TABLEI TemperatureCoefficients(1)Obsenred,and(2)ComputedforCopper of100PercentConductivity Percentx:onduc-^20 /Rf-R2o\ IR2o[t-20]y c /_°-^ \Mean valuesofC Deviationsfrom tivityi 1 Percentcon-1 \ductivityJ finalmean 397. NOTE: If a bend table is not assigned to a part, the Bend Allowance is calculated from the default K-factor found in the Sheet Metal options. The use of a K-rated transformer is anywhere non-linear loads are present. 1 Annealed Copper Conductor 17. This pipe is generally used between water mains and the meter. Transformer transmit high electrical energy so reduce the unite of voltages level engineers used kilo(K) unit for transformer. K-factor values range from 1 to 50. INTRODUCT I ON THE COMPANY Established in 1917, Hammond Power Solutions Inc. The K-factor depends on many variable including the material, the type of bending operation. It is used as an agricultural poison, as an algicide in water purification and as a blue pigment for inks. Thus hardness can range from 150-1500 Vickers. Megabase-In-A-Book - Episode #25. Given a reaction , the equilibrium constant , also called or , is defined as follows: For reactions that are not at equilibrium, we can write a similar expression called the reaction. So if the thickness of the sheet was a distance of T = 1 mm and the location of the neutral axis was a distance of t = 0. k 0 is large, so the thermal conductivity is high. RL Line resistance per unit length. 5 volts where Y = value from tables in mV/A/m Unless a particular value of voltage drop, acceptable to the user, is. Soft copper or soft brass: K=0. Normally K factor together will come to. Megabase-In-A-Book. hd) is calculated using the 'K' factor as: Fitting Head Loss = Kv² / 2g. (HPS), is an industry leader in magnetic transformer design and development. impedance matching factor k E, k L, k E0, sometimes called only k 0 factor, is given below: (2) From Fig. How K- and Y-Factors Affect Metal Bending. K factor uses the formula K factor = δ/T. ) if the friction factor and the Internal diameter (in m or ft. It seems authour not studied the related formula correctly. If you have any questions about what size to order, please give us a call at 1-888-365-4364 or email us at [email protected] rglasspipeinsulation. The pressure loss through a fitting (m hd or ft. 35mm copper conductor PVC SWA PVC cable would be suitable for the loading required, but the voltage drop must be checked. In alloys the density of the impurities is very high, so l and, consequently k, are small. From following table value of de rating factor is 1. 15; No of Bus bar per phase is 2 No's. K-Factor- A constant determined by dividing the thickness of the sheet by the location of the neutral axis, which is the part of sheet metal that does not change length. Bioconcentration factor (BCF) and translocation factors (TF) Bioconcentration (BCF) and translocation (TF) factors are important parameters used in the feasibility study of heavy metals plants. The neutral axis does not suffer any change [of] length during a bending. Enter Finished Cone Dimensions: D = DIAMETER OF LARGE END. If you have any questions about what size to order, please give us a call at 1-888-365-4364 or email us at [email protected] rglasspipeinsulation. The craftsmen who built the great pyramid for the Egyptian Pharaoh Cheops fashioned copper pipe to convey water to the royal bath. k is a factor proportioning the neutral axis in the thickness direction, with zero at the inner surface. Calculation of k Factor. From following table value of de rating factor is 1. Calculate Conductive Heat Transfer ; Calculate Overall Heat Transfer Coefficient. Buy Online. 4 (a constant, ohms per mil foot for copper) A = cross-sectional area in circular mils. Window Utilization Factor, Ku The window utilization factor is the amount of copper that appears in the window area of the transformer or inductor. 8 Telephone 6. with k 0 a constant. Substituting the above values and rearranging the IEC equation slightly, gives: k = 226 ln (1 + θ f − θ i 234. ; If a bend table is assigned to a part, the Bend Allowance is obtained from the table and the assigned bend table file must specify tables for all possible combinations of part thickness and Vee Die width. The K factor is the most important and elusive variable of bending, because it varies both as a function of the material and according to parameters such as angle and tooling. There is little point in generating hkl values for reflections that are equivalent by symmetry, so extra conditions are place on the minimum and maximum values of. The K-Factor is measured under a specific set of conditions. Torque Coefficient, k factor 0. ρ20 = electrical resistivity of conductor material. The K values given below are for making estimates of friction loss in cases not covered in the previous tables. For pure metals such as copper, silver, etc. Note that 1 (cal/sec)/(cm 2 C/cm) = 419 W/m K. See properties chart for the torque coefficient or K value for the anti-seize compounds. Posted by anonymous 4 days ago. " It shows how your torque value will change with different k-factor values at 1-ksi (root area) bolt load. 3 Insulation and Jacket Materials 84 6. 40 D feet f Pipe Size Inches Sch. If 5 is also a factor of k then 2 x 5 = 10 is another factor of k. ; If a bend table is assigned to a part, the Bend Allowance is obtained from the table and the assigned bend table file must specify tables for all possible combinations of part thickness and Vee Die width. All reactant and product concentrations are constant at equilibrium. Friction Loss Tables. • It is necessary to determine Torque coefficient (or Nut Factor) independently, for all critical applications. Fluke 41 & 43), and the K-factor for the. The load experience by a component subject to fatigue loading must not exceed the MODIFIED endurance limit divided by the Stress Concentration factor (K f). hd) is calculated using the 'K' factor as: Fitting Head Loss = Kv² / 2g. The units which we use are important and much not be mixed. The below k-factor chart is not for general use on bolted joints without understanding the variables you may have at your site, and the materials that you are using. copperofIGOpercentconductivity. with k 0 a constant. 4, then divide by the cross-sectional area. 5 volts across the load and a total of 1. This is especially important when using nylon insert lock nuts as these nuts significantly. K as a designation can lead to confusion when talking to suppliers. ß = reciprocal of temperature coefficient of resistivity at 0 °C. 15; No of Bus bar per phase is 2 No's. κ Factor for calculation of the peak short-circuit current. Per my finding, the values of above parameters for copper are (although the units are noted to be different from OMS ) :- tau = 3. The K-factor depends on many variable including the material, the type of bending operation. R = resistance of conductor in ohms. 9 or very close to it for copper, and 21. NOTE : The product of two or more prime factors of a number produces another factor. 8 Telephone 6. Drawn Brass, Copper, Stainless Steel (New) >0. Substituting the above values and rearranging the IEC equation slightly,. " It shows how your torque value will change with different k-factor values at 1-ksi (root area) bolt load. Some common K values, as measured at room temperature, of materials are 325. As mentioned above, this measurement is considered an important tool in insurance accounting and is related to US GAAP (also called GAAP or Generally Accepted Accounting Principles), which is the accounting standard adopted by the U. lengths with 6” of piping exposed at each end for field joint fabrication. Because of the specific properties of any given metal, there is no easy way to calculate that value perfectly, hence the chart in Figure 2. TABLE 1 - 4 Copper and Aluminum Resistance-Temperature Correction Factors 4 TABLE 1 - 5 AC/DC Resistance Ratios - for Copper and Aluminum Conductors, 60 Hertz (65°C) 5 TABLE 1 - 6 Conductor Resistance and Ampacities at High Frequencies 6 TABLE 1 - 7 Copper Conductor Resistance and Ampacities at High Frequencies 7. 264 n = number of wires in the conductor d = nominal diameter of the wires in the conductor in mm K 1 = factor depending on the diameter of the wires and the metal, as given in the following table Maximum Diameter of wires in conductor K 1 Above mm Copper Upto and including Plain Copper. We are going to review three bending scenarios with three different bending angles; 60, 90 and 120, and we will calculate K-Factor, Bend Allowance and Bend Deduction for them. We can rewrite the formula to give us the k-factor as below: k = q / p0. Resistance Table. W Valley Flashing For Roofs - 10' Length. A common method of obtaining a value for f is graphically, from the Moody. Answer (1 of 6): Short Answer is "The "K-Factor" conveys a transformer's ability to serve varying degrees of nonlinear loads without exceeding the rated temperature rise limits. 2 - equivalent pipe length = pipe length + 20%. There are 1. Posted by anonymous 4 days ago. 138 x 10 -6. k 0 is large, so the thermal conductivity is high. Standard Wire & Cable Company can supply you with the right sizes, types, and quantities of product you need to keep you on schedule and your management happy. 96 is the k-factor for copper. Per Clause 9. 1 x 100 x 150 volts/1000 = 16. 9 Military 84 6. Losses by convection can be seen to be negligible in a system without extensive calculations. 1 Outside Cables 83 6. Adjust Q for wind velocity as necessary, by adding 5% for each 5 mph over 20 mph. Therefore, a smaller k value places the neutral surface closer to the inside of the bend radius. Winding Material Aluminum conductor and terminations are provided as standard on K-Factor transformers. Organic compounds, especially those with a high degree of conjugation, also absorb light in the UV or visible regions of the electromagnetic spectrum. inlet upstream pressure is more than 5 psig (35 kPa) fittings factor 1. 5 + θ i) - copper conductors k = 148 ln (1 + θ f − θ i 228 + θ i) - aluminium conductors k = 78 ln (1 + θ f − θ i 202 + θ i) - steel Non-adiabatic effects. We can rewrite the formula to give us the k-factor as below: k = q / p0. K as a designation can lead to confusion when talking to suppliers. 015 ohms at 20° C (room temp). Finding Y-Factor for Sheet Metal Bending. k is a factor proportioning the neutral axis in the thickness direction, with zero at the inner surface. This torque percentage is even lower if Never-Seez is applied to both the threads and bolt cap, which is the preferred method. Flexible Rubber Tubing - Smooth. 2 Test procedure. Torque Coefficient, k factor 0. This is especially important when using nylon insert lock nuts as these nuts significantly. Configure the press or other folding tool with your desired tooling and make a 90 degree fold on the bend line. We can use this formula for any device for which we have a K-factor, and that can be a sprinkler, nozzle. 8 Telephone 6. The K factor is found by multiplying. Wind Factor — Table 3 is based on 20 mph wind velocity. • It is necessary to determine Torque coefficient (or Nut Factor) independently, for all critical applications. The following are K-factors for common materials. The below k-factor chart is not for general use on bolted joints without understanding the variables you may have at your site, and the materials that you are using. 40 D feet f Pipe Size Inches Sch. impedance matching factor k E, k L, k E0, sometimes called only k 0 factor, is given below: (2) From Fig. hd) is calculated using the 'K' factor as: Fitting Head Loss = Kv² / 2g. NOTE : The product of two or more prime factors of a number produces another factor. Wire Gauge #. Buy Online: Permatex ® Copper Anti-Seize Lubricant. N = NUMBER OF PLATES. Custom cable and custom heat shrink shapes are another of our specialties. “Q” = Alternating Current Adjustment Factor: Alternating current circuits No. 806 m/s² or 32. Then we have Because the Reynolds number is greater than 4000, the flow is turbulent. The Modified fatigue endurance limit for, ferrous materials and titanium, is the endurance strength ( S' e ) identified from the relevant S-N ( Wohler) curve modified by a number of factors. K Factor: K factors are obtained on Grade 8, 1/2” steel bolts and Grade 5 nuts by a test procedure which measures torque tension properties. Below is a quick guide to help you determine which thickness best suits the needs of your project. If k is even then 2 is a factor of k. The neutral axis does not suffer any change [of] length during a bending. The following are K-factors for common materials. If 5 is also a factor of k then 2 x 5 = 10 is another factor of k. 102 for copper and 1. 40 D feet f Pipe Size Inches Sch. Buy Online: Permatex ® Copper Anti-Seize Lubricant. The K values given below are for making estimates of friction loss in cases not covered in the previous tables. 15; No of Bus bar per phase is 2 No's. In fact, PCC-1 just took out Appendix J which is the Friction Factor Calculation. ) D = Nominal diameter of bolt (mm, in. K Factors are calculated for 60-75°C wire temperature since this is an estimate of the average temperature at which a circuit operates in service. 4 (a constant, ohms per mil foot for copper) A = cross-sectional area in circular mils. The window utilization factor is influenced by five main factors: 1. " It shows how your torque value will change with different k-factor values at 1-ksi (root area) bolt load. 4, then divide by the cross-sectional area. K-factor values range from 1 to 50. Wire lay fill factor, layer or random wound, S2. A roof valley is a channel created where two different roof slopes meet / where a roof changes direction. K-factor is a weighting of the harmonic load currents according to their effects on transformer heating, as derived from ANSI/IEEE C57. If the temperature were to rise to 35° Celsius, we could easily determine the change of resistance for each piece of wire. The K factor is found by multiplying. For example, to calculate the resistance of a 250-foot #10-gauge copper wire, multiply length by the constant 10. K-Factor Type Three Phase About Tierney Request a quote Neutral Grounding Reactors Transformers Product Catalog Contact Us Search form Search Transformers General Information 600v General Purpose Distribution Type - 600V or moreSingle Phase 15-1000 KVA Three Phase 15-3000 KVA K-Factor Type Three Phase 11 KVA-150 KVA Machine Tool Control Type Options All transformers can have the. ρ20 = electrical resistivity of conductor material. 4 (a constant, ohms per mil foot for copper) A = cross-sectional area in circular mils. where Qc = volumetric heat capacity of conductor at 20°C, J. If you don’t know. 806 m/s² or 32. For example, Chapter 9, Table 8 says that 1000 kcmil uncoated copper at 75 degrees has a resistance of 0. Substituting the above values and rearranging the IEC equation slightly,. ) if the friction factor and the Internal diameter (in m or ft. 5mm² - 1mm²: BS EN 50525-2-31 - H05V2-K: 300/500V 1. Now selecting the proper value of flow stress is difficult because the strain varies throughout the work piece for complex shapes and hence the strength varies. or the pressure as below: p = ( q / k )2. from the table below where K is the pipe diameter in feet. 87 mm) 500 kgf D-2596 KEY FEATURES – Copper formula protects in extreme heat up to 1800˚F – Protects against corrosion, rusting, pitting, seizure and galling. There are 1. The load experience by a component subject to fatigue loading must not exceed the MODIFIED endurance limit divided by the Stress Concentration factor (K f). The 'K' factor of a fitting may be calculated from the 'Equivalent length' (in m or ft. Resistance Table. Soft copper or soft brass: K=0. Where: f = friction factor D = Diameter (inches) ∈/ D = Relative Roughness. 22 395o 394i 0. Then use x and divide by 2 to get a 1/2 wave length. 5/8 x 2 fits a 5/8" copper pipe with 2" of insulation. 300 for steel, 2750. N = NUMBER OF PLATES. The inside radii are based off of a standard Air Bend Force Chart. This is the starting point for most water-based fire protection design and calculations. The K-Factor is the ratio of the Neutral Axis' Offset (t) and the Material Thickness (MT). Y-factor = (K-factor x π) ÷ 2. Equilibrium is when the rate of the forward reaction equals the rate of the reverse reaction. K-Factor Type Three Phase About Tierney Request a quote Neutral Grounding Reactors Transformers Product Catalog Contact Us Search form Search Transformers General Information 600v General Purpose Distribution Type - 600V or moreSingle Phase 15-1000 KVA Three Phase 15-3000 KVA K-Factor Type Three Phase 11 KVA-150 KVA Machine Tool Control Type Options All transformers can have the. Wire Table for International Standards Annealed Copper American Wire Gauge (B. Convection. With the K-factor determined, Rth(j-a)can be calculated by powering up the device at ambient conditions and measuring the forward voltage drop across the TSP diode after temperature equilibrium. 5 Straight lengths of piping will be supplied in 20 ft. Pressure Loss of Water Due to Friction in Types K, L and M Copper Tube (psi per linear foot of tube) (Part 1: ¼ through 2) Table 6 is divided into 2 parts: Part 1: ¼ through 2 | Part 2: 2½ through 12. Now selecting the proper value of flow stress is difficult because the strain varies throughout the work piece for complex shapes and hence the strength varies. It is recommended that power tools not be used for the installation of stainless steel or other fasteners prone to galling. It seems authour not studied the related formula correctly. Convection. The unit of measurement used to identify the thickness of a sheet of copper varies, e. water at 70°C flows in a 1-in Type K copper tube with a flow rate of 285 L/min. This pipe is generally used between water mains and the meter. The below k-factor chart is not for general use on bolted joints without understanding the variables you may have at your site, and the materials that you are using. 1 x 100 x 150 millivolts = 1. Flexible Rubber Tubing - Smooth. On the other hand, in fully developed turbulent flow, for Reynolds numbers over 2,000-2,300 and for a rough pipe, friction factor is a sole function of the pipe's relative roughness. It is used as an agricultural poison, as an algicide in water purification and as a blue pigment for inks. κ Factor for calculation of the peak short-circuit current. Thermal Conductivity - k - is the quantity of heat transmitted due to an unit temperature gradient, in unit time under steady conditions in a direction normal to a surface of the unit area. The Hevi-Duty K-Factor design is a specialized transformer that offers these benefits: Conductors capable of carrying the harmonic currents of non-linear loads without exceeding the temperature rating of the insulation system. 87 mm) 500 kgf D-2596 KEY FEATURES – Copper formula protects in extreme heat up to 1800˚F – Protects against corrosion, rusting, pitting, seizure and galling. See properties chart for the torque coefficient or K value for the anti-seize compounds. If 5 is also a factor of k then 2 x 5 = 10 is another factor of k. Calculate Conductive Heat Transfer ; Calculate Overall Heat Transfer Coefficient. How K- and Y-Factors Affect Metal Bending. Window Utilization Factor, Ku The window utilization factor is the amount of copper that appears in the window area of the transformer or inductor. L = length in feet. ; If a bend table is assigned to a part, the Bend Allowance is obtained from the table and the assigned bend table file must specify tables for all possible combinations of part thickness and Vee Die width. Thus hardness can range from 150-1500 Vickers. Per Clause 9. Below is a quick guide to help you determine which thickness best suits the needs of your project. 5 m/s) for hot water (up to approximately 140oF, 60oC ). We have been doing this for companies since 1947. Manipulating the original thermal resistance equation with the K-factor, the Rth(j-a)of the package can be determined: Fig. Contains a high percentage of micro-fine copper flakes in a semi-synthetic grease carrier and is fortified with high quality rust and corrosion inhibitors. If the temperature of the wire goes up 10. Diameter in Mils. Winding Material Aluminum conductor and terminations are provided as standard on K-Factor transformers. K Factors are calculated for 60-75°C wire temperature since this is an estimate of the average temperature at which a circuit operates in service. K-Factors for Series PWF & EFF The accuracy of Dwyer Instruments Inc. The K-factor formula does not take the forming stresses into account but is simply a geometric calculation of the location of the neutral line after the forces are applied and is thus the roll-up of all the unknown (error) factors for a given setup. Without Never-Seez, the amount of torque is between 50-80%. Copper has a K value of 12. Temperature Coefficient of Copper. The use of a K-rated transformer is anywhere non-linear loads are present. 0 indicates a linear load (no harmonics). Available in 16 oz. in the machinery handbook are different for copper, aluminum, stainless, etc.