Resolución 2535: adopta el Código Eléctrico Nacional, versión 1993. (Sustituye el Anejo A del Reglamento 4435)

220-36. Optional Calculation - New Restaurants. Calculation of a service load or feeder, where the feeder serves the total load, for a new restaurant shall be permitted in accordance with Table 220-36 in lieu of Part B of this article. The overload protection of the service-entrance conductors shall be in accordance with Sections 230-90 and 240-3. Feeder conductors shall not be required to be of greater ampacity than 1 the service-entrance conductors. Service-entrance or feeder conductors whose demand load is determined by this optional calculation shall be permitted to have the neutral load determined by Section 220-22. Table 220-36. Optional Method-Demand Factors for Service-Entrance and Feeder Conductors for New Restaurants All Electric Not All Electric Demand Factor Demand Factor Connected Load (kVA) (Percent) (Percent) 0-325 80 100 Remainder over 325 50 70 D. Method for Computing Farm Loads 220-40. Farm Loads - Buildings and Other Loads. (a) Dwelling Unit. The feeder or service load of a farm dwelling unit shall be computed in accordance with the provisions for dwellings in Part B or C of this article. Where the dwelling has electric heat and the farm has electric grain drying systems, Part C of this article shall not be used to compute the dwelling load. (b) Other than Dwelling Unit. For each farm building or load supplied by two or more branch circuits, the load for feeders, service-entrance conductors, and service equipment shall be computed in accordance with demand factors not less than indicated in Table 220-40. (FPN): See Section 230-21 for overhead conductors from a pole to a building or other structure. 220-41. Farm Loads - Total. The total load of the farm for serviceentrance conductors and service equipment shall be computed in accordance with the farm dwelling unit load and demand factors specified in 70-64 NATIONAL ELECTRICAL CODE Table 220-40. Method for Computing Farm Loads for Other than Dwelling Unit Ampere Load Demand Factor at 240 Volts Percent Loads expected to operate without diversity, but not less than 125 percent full-load current of the largest motor and not less than the first 60 amperes of load 100 Next 60 amperes of all other loads 50 Remainder of other load 25 Table 220-41. Where there is equipment in two or more farm equipment buildings or for loads having the same function, such loads shall be computed in accordance with Table 220-40 and shall be permitted to be combined as a single load in Table 220-41 for computing the total load. (FPN): See Section 230-21 for overhead conductors from a pole to a building or other structure. Table 220-41. Method for Computing Total Farm Load Individual Loads Computed in Accordance Demand Factor with Table 220-40 Percent Largest load 100 Second largest load 75 Third largest load 65 Remaining loads 50 To this total load, add the load of the farm dwelling unit computed in accordance with Part B or C of this article. Where the dwelling has electric heat and the farm has electric grain drying systems, Part C of this article shall not be used to compute the dwelling load.