Diversity Calculator
– MAXIMUM DEMAND & DIVERSITY –
Calculate the total connected load and apply diversity to calculate the maximum demand
Description
MAXIMUM DEMAND AND DIVERSITY
This electrical diversity calculator is for calculating the total connected load and applying diversity to get the maximum demand with diversity applied.
To calculate the maximum demand we can use this formula, Total connected load x diversity factor = maximum demand.
- An electrical diversity calculator based on appendix A of the On-Site Guide.
Features
FEATURES & FUNCTIONS
- Calculate total connected load
- Apply usage factors (UF)
- Apply diversity (DF)
- Enter load as kW, Amps or Watts
- Add single phase loads
- Custom diversity factors
- Add three phase loads
- Calculate maximum demand
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Calculate Total Load
TOTAL CONNECTED LOAD
1. Distribution Board Type
To calculate the total connected load first select the distribution board type from the selectable options, Single Phase or Three Phase, note you also can add single phase loads to a three phase distribution board.
Next select a type of premises from the selectable options.
2. Types Of Premises
- Dwelling / Domestic
- Small shops & offices
- Small hotels and guest houses
- Other (custom)
Select Other (custom) if you wish to apply your own diversity factor values to ALL circuits, the remaining types of premises applies a diversity factor based on Appendix A of the On-Site Guide.
3. Description of Circuit or Load
Once you have selected a type of premises now select a circuit type from the vast array of options. Circuit type examples, Cooker, Electric Shower, socket-outlets…
The diversity factor applied depends on the type of circuit selected.
Select Custom Circuit if you wish to apply your own diversity factor to that specific load.
Calculate Diversity
DIVERSITY FACTORS
The amount of diversity applied to the default circuit types is based on appendix A of the On-Site Guide, you can also apply your own diversity factor to specific circuits by selecting Circuit Type: Custom Circuit. New inputs will appear where you can enter your own diversity factor value and circuit description.
Note: When adding multiples of the same default circuit types, add the largest load first, then the second largest and so on.
4. Enter Total Load Value
Total Load Value Options:
– kW
– Watts
– Amps
5. If Three Phase Select Phase
Phase Options:
– L1
– L2
– L3
– L123
Calculate Maximum Demand
MAXIMUM DEMAND
Maximum demand is the total connected load with diversity applied.
6. Usage Factor
A Usage Factor (UF) is a function we have added to enable you to apply a further factor to an already diversified total load DL 1 (OSG).
This diversity calculator outputs multiple results:
Total Full Load = Your total connected load (before applying diversity).
DL 1 (OSG) = Diversified Load based on the OSG.
DL 1 (Custom) = Diversified Load using your own diversity factors.
DL 2 = Diversified Load based on a rule of thumb method.
DL 3 = DL 1 but also applying your Usage Factor to it.
DL 1 (Custom) is displayed when you select Type of Premises “Custom”, when this is selected as the type of premises you enter your own diversity factors for each load you add.
You can also use your own diversity factor value to a specific circuit or load with the preset standard types of premises by selecting Circuit Type : Custom.
The diversity applied using the rule of thumb method depends on the type of premises selected.
Electrical Diversity Calculations
PRINT & SAVE RESULTS
Calculating maximum demand is not an exact science due to the many variables involved, many other factors should also be considered when calculating the maximum demand.
Calculating & applying diversity to electrical circuits requires a detailed knowledge of the electrical installation in question and relevant experience in applying diversity and calculating the maximum demand.
Other Features
- Quick and easy
- Saves time
- Print the results
- Multiple diversity results
What's New
ONLY INCLUDES UPDATES WORTH MENTIONING
CHANGELOG
Date: August 2021 v1.0.2 - Improved default circuit descriptions. - Improved help guide. - NEW: Add a custom circuit with your own diversity factor value. - NEW: Add a custom circuit with your own circuit description. - NEW: Edit the power factor value for three phase circuits. - Bug fixes. Date: June 2021 v1.0.1 - Android bug fixes. Date: April 2021 v1.0.0 - 1st release.
FAQ's
FREQUENTLY ASKED QUESTIONS
How to calculate maximum demand
To calculate the maximum demand of an electrical installation we may use the following formula:
Load 1 + Load 2 + Load 3 = Total Connected Load.
Total Connected Load x Diversity = Maximum Demand.
Note: When calculating the maximum demand for an electrical installation, the type of use of the installation / number of occupants may change throughout the life of the installation therefore the maximum demand may change.
Calculating maximum demand is not an exact science due to the many variables, many other factors should also be considered when calculating the maximum demand.
How to calculate diversity
In order to apply diversity to the total full load we need to ascertain the type of load and how frequently it is likely to be used.
FL = Total Full Load
DF = Diversity Factor
DR = Diversified Result
FL x DF = DL
Note that depending on the type of load the formula above may differ, such as FL, (sum) = DR
Calculating & applying the appropriate diversity factors to a connected load requires detailed knowledge and experience, all relevant factors should be considered.
For more information see our post on how to calculate diversity.
How to calculate the total connected load
The circuit design current is the minimum amount of current the circuit needs to be able to sustain in normal use.
To calculate the design current or maximum demand check out our Diversity / Maximum Demand Calculator App.
What is a Usage Factor?
A Usage Factor (UF) is a function we have added to enable you to apply a further factor to an already diversified total load.
This diversity calculator outputs multiple results:
Total Full Load = Your total connected load (before applying diversity).
DL 1 = Diversified Load based on the OSG.
DL 2 = Diversified Load based on a rule of thumb method.
DL 3 = Diversified Load of DL 1 but also applying your Usage Factor.
Demo video may show an older version of the app
Tablets and Phones
OPTIMISED FOR MULTIPLE SCREEN SIZES
This diversity calculator is optimised to work on all screen sizes and resolutions from the iPhone 5 up to large tablets such as the iPad Pro and all Android devices.
Features:
- Calculate the total connected load
- Apply diversity
- Get the maximum demand (multiple diversified results)
- Apply On-Site Guide or custom diversity factors
