blue
cable
charge
cobbweb
column
communication
connected
connection
current
danger
day
distribution
electrical
electricity
energy
engineering
fashioned
grid
head
industry
interaction
internet
land
line
mast
network
old
pillar
pole
post
power
sky
sunny
support
system
technology
telegraph
telephone
transmission
vintage
voltage
volts
web
wire
wires
wood
wooden