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IEVref: | 441-18-23 | ID: | |

Language: | en | Status: Standard | |

Term: | <i>I</i><sup>2</sup><i>t</i> | ||

Synonym1: | Joule integral [Preferred] | ||

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Symbol: | |||

Definition: | the integral of the square of the current over a given time interval: ${I}^{2}t={\displaystyle \underset{{t}_{0}}{\overset{{t}_{1}}{\int}}{i}^{2}}\mathrm{d}t$ NOTE 1 – The pre-arcing NOTE 2 – The operating NOTE 3 – The energy in joules liberated in one ohm of resistance in a circuit protected by a fuse is equal to the value of the operating | ||

Publication date: | 1984 | ||

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Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 441-18-23.gif | ||

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${I}^{2}t={\displaystyle \underset{{t}_{0}}{\overset{{t}_{1}}{\int}}{i}^{2}}\mathrm{d}t$
^{2}*t* is the *I*^{2}*t* integral extended over the pre-arcing time of the fuse.
^{2}*t* is the *I*^{2}*t* integral extended over the operating time of the fuse.
^{2}*t* expressed in *A*^{2} • *s*.