Are all live electrical conductors only accessible to qualified personnel?
Are cabinets and other enclosures installed so that moisture cannot enter and accumulate within the
enclosures?
Are electrical installations of over 600 volts made inaccessible to unqualified persons by ANY of the following methods:
1) Enclosed and accessible only with lock and key;
2) Made with metal-enclosed equipment; or
3) Enclosed in a vault or area which has access controlled by a lock?
Are interlocks used on doors which allow access to voltages from 500 to 1000 volts AC or DC?