The LADBS NEC Standard Electrical Load Calculation form is a vital tool used to determine the electrical load requirements for various types of buildings and installations. This form ensures that electrical systems are designed safely and efficiently, adhering to local codes and standards. By understanding how to fill out this form correctly, you can help ensure compliance and promote safety in your electrical projects.
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The LADBS NEC Standard Electrical Load Calculation form is an essential tool for anyone involved in electrical installations and planning within the City of Los Angeles. This form is designed to ensure that electrical systems are adequately sized to handle the anticipated loads safely and efficiently. It encompasses various factors, including the type of occupancy, the total square footage of the space, and the specific electrical appliances and systems that will be utilized. By providing a structured approach to load calculations, the form helps prevent overloading circuits, which can lead to safety hazards such as electrical fires. Additionally, the form includes sections for both residential and commercial properties, allowing for tailored calculations based on unique requirements. Users must accurately complete each section to comply with local codes and regulations, which ultimately contributes to the overall safety and reliability of electrical installations. Understanding and correctly using this form is crucial for contractors, electricians, and property owners alike, as it lays the groundwork for safe and effective electrical design.
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Filling out the LADBS NEC Standard Electrical Load Calculation form is essential for ensuring that electrical systems are safe and efficient. Here are some key takeaways to consider when using this form:
By keeping these points in mind, you can effectively fill out and utilize the LADBS NEC Standard Electrical Load Calculation form, contributing to safer electrical installations.
NEC Standard Electrical Load Calculation for Single Family Dwellings
(Only for Service Ratings of 120/240V, 225 Amps Max)
Owner:
Location:
Total Floor Area of Dwelling (NEC 220.12)
SQFT.
Factor
Quantity
Volt Amperes
(VA)
“General Lighting”
1.
General Lighting (SQFT X 3 VA/SQ FT (Table 220.12)
3 X
sqft.
2.
Small Appliance Circuits (1500 VA per circuit)
(NEC
1500 X
220.52(A)) (minimum 2)
3.
Laundry Circuit (1500 VA per circuit) (NEC 220.52(B))
4.
Total General Lighting Load (Add lines 1, 2 & 3):
5.
First 3000 VA @ 100%:
3000
6.
Total General Lighting Load – 3000 =
@ 35%=
7.
Net General Lighting Load (Per NEC 220.42) (Add lines 5 & 6):
*Fixed Appliances(if insufficient space, use back):
YES
NO
Garbage Disposal
Bathroom Fan
Microwave
Dishwasher
Other:
Total
8.
3 or less Appliances,
Total Appliance VA;
4 or more Appliances,
75% of Total Appliance VA (NEC 220.53):
*Other Loads (including motors, EV charger(s), etc.)
Nameplate Rating
9. Electric
Range (8000VA or Nameplate)**
10. HVAC
11.
Electric
Oven
12.
Dryer (5000 VA minimum)**
13.
Vehicle Charger
✔
14.
15.
16.
25% of largest motor (NEC 430.24)
Total Service Load Volt-Amperes (VA) (Add lines 7, 8 & 9 thru 16) =
Total Service Load Volt-Amperes / 240-volts =
Amperes
***Service Rating (Amperes)=
*For every “YES” answer, indicate VA rating of equipment
**Nameplate rating must be used if larger
***Service Rating shall be greater than or equal to the Service load
As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on t he basis of disability and, upon request will provide reasonable accommodation to ensure equal access to its programs, services and activities.
NEC Standard Electrical Load Calculation (Rev. 03-23-2016)
www.ladbs.org