5.2.2.6 Inverters for closed electrical operating areasWhere required by 4.8.3.6, an inverter not provided with full protection against shock hazard on the PV array shall be marked with a warning that the inverter is only for use in a closed electrical operating area, and referring to the installation instructions.5.3 Documentation5.3.2 Information related to installationAdditional subclauses:5.3.2.1 RatingsSubclause 5.3.2 of Part 1 requires the documentation to include ratings information for each input and output. For inverters this information shall be as in Table 33 below. Only those ratings that are applicable based on the type of inverter are required.Table 33 – Inverter ratings – Documentation requirements