51
Mounting and Operating Instructions CEAG Battery Cabinets
40071860035 (N) March 2016 www.ceag.de
6 Installation
6.2.2 Room dimensions and Surface conditions
Floors shall be reasonably level and able to support the
battery weight.
From EN 50272-2: “...The floor area for a person standing
within arm´s reach of the battery shall be electrostatic dissi-
pative in order to prevent electrostatic charge generation. The
resistance to a groundable point measured to IEC 61340-4-1
shall be less than 10 MOhm.
Conversely the floor must offer sufficient resistance R for
personnel safety. Therefore the resistance of the floor to a
groundable point when measured in accordance with IEC
61340-4-1 shall be:
• for battery nominal voltage 500 V: 50 kOhm R 10 MOhm
and
• for battery nominal voltage > 500 V: 100 kOhm R 10
MOhm
Note 1:
To make the first part of the requirement effective, personnel
shall wear anti-static footwear when carrying out mainte-
nance work on the battery. The footwear shall comply with
EN 345.
Note 2:
Arm´s reach: 1.25 m distance (Definition of arm´s reach see
HD 384.4.41.)...”
Room inlets and outlets: The layout for air circulation should
be as shown below:
6.2.3 Ventilation
Battery rooms must be vented acc. to EN 50 272-2 in order
to dilute gas (hydrogen and oxygen) released by charging and
discharging and to avoid explosions. Therefore, the electrical
installation must not be “EX” protected. It must be designed
for wet room conditions.
Do not install batteries in airtight enclosures.
Spark generating parts must have a safety distance to cell
or bloc openings (valves at closed batteries) as specified in
EN 50272-2.
Heaters with naked flames or glowing parts or devices are
forbidden. Heater temperature must not exceed 300°C.
Air out
Clean
air in
