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B-59
Form 3 partitioning
Distribution
Main distribution
Separation of the functional units from one another + separation of the terminals for
external conductors from the functional units
Presentation
Dd381681.eps
Form
3b
Form 3b partitioning is essential to ensure excellent protection for
the installation and operators working in the switchboard.
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Protection against contact with live parts
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Reduction in the risk of faults between the functional units
(propagation of electrical arcs, etc.).
DD384527.eps
Security
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In Form 3b, the terminals are separated from the busbars.