DANGER
Risk of ignition or explosion
b
Each connection to the protection earth (PE) on the explosion-proof enclosure
must use at least one wire with a cross-section meeting the requirements of the
table below.
Wire cross-section of outer cable S Minimum wire cross-section of the corre‐
sponding protection earth wire S
P
S ≤ 16 mm
2
S
16 mm
2
 < S ≤ 35 mm
2
16 mm
2
S > 35 mm
2
0.5 S
Table 1: Minimum wire cross-section for protection earth (PE)
ELECTRICAL INSTALLATION  4
8017025/YIZ2/2015-02-25 | SICK
Subject to change without notice
O P E R A T I N G   I N S T R U C T I O N S | C4000 Select Ex
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