What are the factors that contribute to diversity?

Answer 1

Diversity describes the situation in an electrical installation in which (1) not all loads connected to the system are operating simultaneously, or (2) loads are not simultaneously operating at the maximum rating. Diversity is used when determining the current loading on an electrical system in order to determine appropriate conductor sizes.

Allowable diversities are usually specified in the relevant electrical code or wiring regulations. For example, the 'On-Site Guide' supplement to the UK's BS 7671:2008 Wiring Regulations specifies how demand is to be determined for a household cooking appliance (range) as follows:

"The first 10 A of the rated current, plus 30% of the remainder of the rated current, plus 5 A if a socket outlet is incorporated in the control unit."

Answer 2

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