SAFETYTEST 1ST User Manual
SAFETY
SAFETYTEST GmbH June 15
2015 Page 12 of 22
Before performing a leakage current test on class II or III (except for IT appliances) an
insulation resistance test of 500 V DC has to be passed. Accessible connections and
generated SELV voltages have to be checked according to the SELV specifications.
10.1 Qualification
High requirements are set to the qualification of the skilled electrician. All tests have to be
performed by a skilled electrician or under his supervision. The skilled electrician must follow
the rules and standards required for his work. Also it is not allowed to omit any steps which
would ensure a correct and safe use of the appliance. The liability of the skilled person
responsible for testing is especially important if no complete test is possible (e. g. due to
permanently installed equipment). If a complete test is impossible the responsible electrician
assumes the liability and has to document this on the test report.
10.2 Mains connection
According to law the person responsible for the installation of the power system is
responsible for the mains connection, not the manufacturer of the equipment to be
connected.
The required tests on permanently installed equipment are often not possible due to technical
reasons or due to the local conditions. If the equipment is not accessible the mains
connections (L1, L2, L3, N and PE) have to be disconnected from mains. Therefore the
connection should be refitted to a plug and socket connection according to IEC 60309-1 or a
coupling should be inserted according to IEC 60309-1. The installation costs can be
amortized du to a faster safety test.
NOTE!!!
Electrical appliances with a nominal current above 16A must be connected to all pole circuit
breakers according to IEC 60947. These should be mounted at a height of approx 1,7 m.
Plugs and sockets of equipment rated above 16A may not be connected or disconnected
under load. Always open the circuit breaker first.
Equipment rated below 16A does not require a separate circuit breaker.
10.3 Visual inspection
The appliances are checked for externally visible damages, and, if possible, the suitability of
the surrounding for their use e. g.:
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Damages to the housing
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Suitable place of installation
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Damages to the power cord
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Deficiencies on the strain relief
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Indications of overload or improper use
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Inappropriate alterations
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Missing protective covers
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Dirt and corrosion affecting safety
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Presence of required ventilators
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Open air vents
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Tightness
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Legibility of markings
Note:
Visible damages which might impel the mechanical or electrical safe use or which might lead
to fire must be repaired immediately.
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