Electrically skilled person: a person with relevant education and experience to enable him or her to perceive risks and to avoid hazards that electricity can create [defined in the IEC 60050-195-2021].
British Standard BS 7671 defined the term “skilled person” similarly to the IEC: person who possesses, as appropriate to the nature of the electrical work to be undertaken, adequate education, training and practical skills, and who is able to perceive risks and avoid hazards which electricity can create.
NOTE 1: The term “(electrically)” is assumed to be present where the term ‘skilled person’ is used throughout BS 7671.
NOTE 2: Regulation 16 of the Electricity at Work Regulations 1989 requires persons to be competent to prevent danger and injury. The HSE publication HSR25 provides guidance on this.
Analysis of definitions of the term in question in international and national standards indicates that the term “electrically skilled person” characterizes a group of persons who:
- have received special education in the operation of the electrical installations of buildings and the electrical equipment installed in them;
- have adequate training in safety rules for the operation of the electrical installations of buildings and electrical equipment installed therein.
The knowledge and experience possessed by skilled persons enable them to recognize the potential danger of electric shock and to consciously avoid it, as well as to organize the operation of the electrical installations of buildings and to supervise electrically instructed persons when they carry out this work. Electrically skilled persons are generally persons who participate in the construction, maintenance, and supervision of the safe operation of the electrical installations of buildings.
The term ” skilled person” is used in regulatory documentation, among other things, to specify the conditions under which the electrical installation of a building or its individual parts will be operated. Table 51A, “Characteristics of external influences” of IEC 60364-5-51, provides a classification of external influences that must be taken into account when designing, installing and operating electrical installations of buildings. The following are excerpts from this table that relate to the capabilities of skilled persons.
|Code||External influences||Characteristics required for selection and erection of equipment|
|BA5||Skilled||Persons with technical knowledge or sufficient experience to enable them to avoid danger which electricity may create (engineers and technicians).|
Closed electrical operating areas.
In areas of the building accessible only to skilled persons, it is permitted to use electrical equipment and to use such protective measures and protective provisions as cannot be used in areas where ordinary persons might be present. For example, electrical equipment with a degree of protection less than IP20 may be used in these rooms, barriers may be used to protect against electric shock, hazardous-live-parts may be placed out of reach, local equipotential bonding and certain other protective measures and protective provisions may be taken.