I'd imagine that it passes the flash test, between the L-N wires cores and outer of the exposed metal parts the cables are mechanically protected against damage by the tubes.
However, if there is any risk of those cores moving inside the tubes, it probably doesn't really make the grade, and has been self-certified by a company that is sailing close to the wind, as you describe it it sounds almost class 0, i.e. no earth and single fault to fail, I'd be happer if you said the wires were sleeved.
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from IEC60601-1 REQUIREMENTS
Philosophy
The underlying philosophy of the IEC60601-1 harmonized standards is that equipment must be safe in normal condition (NC) and single fault condition (SFC).
Likely to Occur (Normal Condition)
· Reverse polarity of supply mains
· Failure of insulation less than basic
Could Occur (Single Fault Condition)
· Interruption of protective earth
· Interruption of one supply conductor
· Mains voltage on floating (F-type) applied part(s)
· Mains voltage on communication ports
· Failure of electrical components, one at a time
· Failure of mechanical parts, one at a time
· Failure of temperature limiting devices, one at a time
· Shorting of basic or supplemental insulation
· Overload of mains supply transformers
· Interruption and short circuit of motor capacitors
· Locking of moving parts
· Impairment of cooling (fans, vents)
Unlikely to Occur (Not evaluated)
· Total breakdown of double or reinforced insulation
· Loss of protective earth on permanently installed equipment
· More than one Single Fault Condition at a time
· Failure of a UL Recognized optocoupler barrier
· Failure of a UL Recognized Y1 capacitor, acting as a barrier
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sadly the standard itself is quite pricey.
regards M.
