International Electrotechnical Commission
Glossary

Terms defined in IEC 62257-9-3

3.1carrier (messenger)
3.2block
3.3earth
3.4equipotential bonding
3.5microgrid
3.6micropowerplant
3.7protective conductor; (identification, PE)
3.8PEN conductor
3.9power line
3.10section of an overhead line
3.11selectivity (or protection coordination)
3.12service connection line
3.13span
3.14stay
3.15supply point
3.16surge arrester
3.17Surge Protective Device; SPD