Electricity supply systems in buildings, see91.140.50
ICS Field
29.240.01 Power transmission and distribution networks in general
Powerline telecommunications, see33.040.60
29.240.10 Substations. Surge arresters
29.240.20 Power transmission and distribution lines
29.240.30 Control equipment for electric power systems
Measuring instruments for electrical quantities, see17.220.20
29.240.99 Other equipment related to power transmission and distribution networks
Including capacitors for power networks