Page 22 - TBIS_15194-2019_(EN)_3nd

TBIS 15194:2019

4.2.7 Power cables and conduits

Conduit entries, cable entries and knockouts shall be constructed or located so that
the introduction of the conduit or cable does not reduce the protection measures
adopted by the manufacturer.

Compliance is checked by inspection. Guidance for power cables size selection is
given in HD 60364-5-52:2011, Clauses 5.22.1.2, 523.1523.3 and Table A .

The insulation of internal wiring shall withstand the electrical stress likely to occur in
normal use. The wiring and its connections shall withstand the electrical strength
test.

The test voltage expressed in V shall be equal to (500 + 2×Ur) for 2 min and applied
between live parts and other metal parts only.

NOTE Ur is the rated voltage.

4.2.8 External and internal electrical connections
Electrical connection shall comply with HD 60364-5-52:2011, Clauses 526.1 and

526.2.

4.2.9 Moisture resistance

The electrical components of a fully assembled EPAC shall be tested least 10 minutes
and shall comply IEC 60529 4.2.14 IPX4 requirements.

4.2.10 Mechanical strength test

The electrical components including the battery shall have adequate mechanical

strength and be constructed to withstand such rough handling that may be expected
in normal use. Compliance is checked by:

-Applying impacts to the battery pack mounted on the EPAC by means of the spring

hammer as specified in EN 60068-2-75. The battery pack is rigidly supported and
three impacts are applied to every point of the enclosure that is likely to be weak
with an impact energy of (0,7 ± 0,05) J. After the test the battery pack shall show no

damage that could lead to emission of dangerous substances (gas or liquid) ignition,
fire or overheating.

-Detachable batteries are submitted to free fall on a rigid surface as specified in EN
22248 at a height of 0,90 m in three different positions. The positions shall be one
surface, one edge and one corner of the enclosure that is likely to be weak.

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