or the substance of "CAUTION: Electric fence".
The inscription shall be indelible, inscribed on both
•
sides of the warning sign and have a height of at least
25 mm (1").
Ensure that all mains-operated, ancillary equipment
connected to the electric animal fence circuit provides a
degree of isolation between the fence circuit and the supply
mains equivalent to that provided by the energizer.
Protection from the weather shall be provided for the
ancillary equipment unless this equipment is certified by the
manufacturer as being suitable for use outdoors, and is of a
type with a minimum degree of protection IPX4.
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