Safety awareness
50
WebEML User Manual
1.3.1.2 Safety instructions:
1.3.2 Risks of explosions
1.3.2.1 Labeling:
This risk is present when batteries are used, and it is signaled by the label in Figure 3:
Figure 3 Risk of explosion
1.3.2.2 Safety instructions:
Therefore, slits or apertures are made to let air circulate freely and allow dangerous
gases to down flow (battery-emitted hydrogen). A 417-IEC-5641 Norm. compliant
label, as shown in Figure 4, is affixed next to it indicating that the openings must not
be covered up.
Danger:
Carefully observe the specific procedures for installation / turn-up and commissioning /
maintenance of equipment parts where D.C. power is present, described in the relevant
installation / turn-up and commissioning / maintenance documents and the following
general rules:
•Personal injury can be caused by -48VDC. Avoid touching powered terminals with any
exposed part of your body.
•Short circuiting, low-voltage, low-impedance, DC circuits can cause severe arcing that can
result in burns and/or eye damage. Remove rings, watches, and other metal jewelry before
working with primary circuits. Exercise caution to avoid shorting power input terminals.
Release 7.0.0 3DB 19286 ACAA Issue 01
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