Minebea Intec PR1625/60, Instrument Manual

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PR1625/60 Instrument Manual
EN-16 Minebea Intec
4.2.1 Potential Equalization
According to VDE 0165/6.80, potential equalization is to be ensured within an intrinsically safe installation,
especially in hazardous areas of zone 0 and 1. Otherwise impermissible sparking can occur between the
particular conducting parts.
Therefore terminal PE of the PR1626/60
must
be connected to the potential equalization system, which has
to be installed and earthed according to VDE 0100 and its part 540, or/and acc. to respective local
regulations.
Pos. Component Cross-section
(1) Conductor for additional potential equalization ≥
4.0 mm² Cu
(2) Conductor for potential equalization ≥
6.0 mm² Cu
(3) Conductor for potential equalization ≥
10.0 mm² Cu
(4) Main conductor for potential equalization ≥
10.0 mm² Cu
(5) Earthing conductor ≥
10.0 mm² Cu
(6) Load cell by-pass ≥
10.0 mm² Cu
(A)
Sub potential equalization terminal
(B) Main potential equalization terminal
(E) To earth electrode