共找到 150 條與 計算因數 相關的標準，共 10 頁
JB/T 10181的本部分規定了自由空氣中不受到日光直接照射的電纜群載流量降低因數的計算方法。 本部分適用于平面敷設的任何型式的電纜或電纜群，只要所有的電纜具有相同的直徑和相同的損耗。 本部分提出電纜相鄰敷設時允許載流量降低的計算方法僅限于幾種情況： a) 正方形敷設時最多為9根電纜，如圖1
Electric cables.Calculation of the current rating.Part 22: Thermal resistance.A method for calculating reduction factors for groups of cables in free air, protected from solar radiation
JB/T 10181的本部分規定了三相雙回路平面排列的單芯電纜的金屬套渦流損耗計算方法。當金屬套單點或交叉互聯時，金屬套中沒有明顯的環流。如果金屬套兩端互聯時，金屬套的顯著環流將導致載流量降低。對于雙回路環流損耗，其計算方法在考慮中。 本部分適用于三相雙回路平面排列的單芯電纜的金屬套渦流損耗計算
Electric cables.Calculation of the current rating.Part 12: Current rating equations (100% load factor) and calculation of losses.Sheath eddy current loss factors for two circuits in flat formation
本標準提供了三相雙回路平面排列的單芯電纜的金屬套渦流損耗計算方法。當金屬套單點或交叉互連時金屬套中沒有明顯的環流。如果金屬套兩端互連時，金屬套的顯著環流將導致載流量降低。對于雙回路環流損耗計算方法在考慮中。 本方法提供對分享敷設的三相回路電纜金屬套損耗因數的修正。對于電纜參數m(m
Calculation of the current rating of electric cables.Part 1:Current rating equations(100% load factor) and calculation of losses.Section 2:Sheath eddy current loss factors for two circuits in flat formation
本標準適用于平面敷設的任何形式的電纜或電纜群，只要所有的電纜具有相同直徑和相同損耗。 本標準提出電纜相鄰敷設時允許載流量降低的計算方法僅限于幾種情況： a) 正方形敷設時最多為9根電纜； b) 以三角形排列的三根電纜構成的回路數最多為6個，包含并列放置至三回路或雙層排列至兩回路
Calculation of the current rating of electric cables.Part 2:Thermal resistance.Section 2:A method for calculating reduction factors for groups of cables in free air,protected from solar fadiation
JB/T 10181的本部分規定了電纜的載流量和損耗的計算。 本部分適用于敷設在空氣或土壤中的所有電壓等級的交流電纜，以及5 kV及以下直流電纜穩態運行狀況。土壤中包括發生或未發生局部土壤干燥的直接埋地、管道、電纜溝或鋼管中敷設的電纜。術語“穩態”是指在周圍環境假定不變的條件下，連續恒定電流
Electric cables.Calculation of the current rating.Part 11: Current rating equations (100% load factor) and calculation of losses.General
This International Standard specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthetic
Natural gas - Calculation of compression factors - Calculation using measured physical properties
This method is for calculating the UOP Characterization Factor of petroleum oils from API gravity and distillation or viscosity data. Average
Calculation of UOP Characterization Factor and Estimation of Molecular Weight of Petroleum Oil
JB/T 10181的本部分規定了電纜熱阻的計算方法。 本部分適用于敷設在空氣或土壤中的所有電壓等級的交流電纜，以及5 kV及以下直流電纜穩態運行狀況。土壤中包括發生或未發生局部土壤干燥的直接埋地、管道、電纜溝或鋼管中敷設的電纜。術語“穩態”是指在周圍環境假定不變的條件下，連續恒定電流（100
Electric cables.Calculation of the current rating.Part 21: Thermal resistance.Calculation of thermal resistance
Determination of the coefficient of friction of chemical fiber staple fibers - drum method
This standard provides conversion factors for units of measurement for a number of quantities, which are, or have been, in general use in engineering
Conversion factors for units
Bl?gr?nn faktor (BGF) er en beregningsmetode som stimulerer til at vegetasjonselementer og l?sninger for ?pen overvannsh?ndtering innlemmes tidlig i
Blue-Green Factor - Calculation method and weighting factors
Factors for the calculation of short-circuit currents according to IEC 60909-0
This International Standard specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthetic
Natural gas - Calculation of compression factors - Calculation using a molar composition analysis
Power factor management technical specifications
Natural gas - Calculation of compression factor - Calculation using physical properties
