EN 60335 part 1 is a safety standard for household and similar electrical appliances that defines how these categories of products can meet the overall requirements of the “Low Voltage Directive” LVD 2006/95/EC, and others such as the “Machinery Directive” 2006/42/EC or even the “Construction Products Directive” 89/106/EEC, as relevant. This variety is in recognition of the fact that a typical household will have all sorts of electrical equipment, intended for many different uses.
Because the products can vary greatly in type and usage, unusually, EN 60335 currently includes 114 “Part 2” standards that relate to the requirements of particular products ranging from toys to insect killers to “scissor type” garden shears. For this reason, the relevant Part 2 document also has to be consulted and takes precedence over the general requirements of Part 1. Standard EN 60664-1, “Insulation coordination for equipment within low-voltage systems. Principles, requirements and tests,” is also often referenced.