Created rule 12-4 RDS

docs/section12/Rule12-4.md

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+# Receptacle - Rule 12-4
+**Schema Version** 0.0.37  
+**Primary Rule:** True  
+**Rule ID:** 12-4  
+**Rule Description:** Computer room equipment schedules shall be modeled as a constant fraction of the peak design load per the following monthly schedule: Months 1, 5, 9 — 25%; Months 2, 6, 10 — 50%; Months 3, 7, 11 — 75%; Months 4, 8, 12 — 100%   
+**Appendix G Section:** G3.1.3.16   
+**Appendix G Section Reference:** None  
+
+**Applicability:** All required data elements exist for B_RMR  
+**Applicability Checks:**
+1. Computer rooms are present in the baseline model  
+
+**Manual Check:** None  
+**Evaluation Context:** Each Miscellaneous Equipment object in the baseline model    
+**Data Lookup:** None  
+**Function Call:**
+1) find_all
+2) is_space_a_computer_room
+3) compare_schedules
+
+## Applicability Checks:  
+- Iterate through the spaces in the baseline RMD: `for space_b in find_all("$.buildings[*].building_segments[*].zones[*].spaces[*]", B_RMD):`
+  - Check if the space is a computer room: `if is_space_a_computer_room(space):`
+    - Iterate through the miscelleneous equipment loads: `for misc_equip_b in space_b.miscellaneous_equipment:`
+      - Check if the equipment is IT equipment: `if misc_equip_b.type == "INFORMATION_TECHNOLOGY_EQUIPMENT" and misc_equip_b.power > 0:`
+        - Rule is applicable: `return True`
+
+## Rule Logic:
+- Determine if it is a leap year: `is_leap_year = RPD.calendar.is_leap_year`
+- Create a dictionary to map the month numbers to their respective fractions: `month_fractions = {1: 0.25, 2: 0.5, 3: 0.75, 4: 1, 5: 0.25, 6: 0.5, 7: 0.75, 8: 1, 9: 0.25, 10: 0.5, 11: 0.75, 12: 1}`
+- Create a dictionary to map the number of days in each month: `days_in_month = {1: 31, 2: 29 if is_leap_year else 28, 3: 31, 4: 30, 5: 31, 6: 30, 7: 31, 8: 31, 9: 30, 10: 31, 11: 30, 12: 31}`
+- Create an empty list to store the expected hourly values of the schedule: `expected_hourly_values = []`
+- Iterate through the months of the year: `for month in range(1, 13):`
+  - Get the fraction for the month: `fraction = month_fractions[month]`
+  - Get the number of days in the month: `days = days_in_month[month]`
+  - Append the hourly fraction to the list: `expected_hourly_values.extend([fraction] * days * 24)`
+- Create the mask schedule to be used for comparison: `mask_schedule = [1] * 8784 if is_leap_year else [1] * 8760`
+- Get the multiplier schedule that was modeled for the equipment: `multiplier_schedule_b = misc_equip_b.multiplier_schedule.hourly_values`
+- Compare the modeled schedule with the expected schedule: `comparison_data = compare_schedules(multiplier_schedule_b, expected_hourly_values, mask_schedule, is_leap_year)`
+
+**Rule Assertion:**  
+  - Case 1: If the modeled schedule matches the expected schedule for all hours, PASS:`if comparison_data["total_hours_matched"] == 8784 if is_leap_year else 8760: PASS`
+  - Case 2: Else, FAIL:`else: FAIL`
+
+
+**Notes:**  
+1. None
+
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