4001 - Portrait - Danger 240 volts
4002 - Portrait - Danger 110 volts
4003 - Portrait - Danger 415 volts
4004 - Portrait - Danger 440 volts
4007 - Portrait - Warning high voltage cables overhead
4008 - Portrait - Warning High voltage cables underground
4009 - Portrait - Danger High voltage
4010 - Portrait - Danger live wires
4011 - Portrait - Danger isolate supply before operating
4012 - Portrait - Danger electricity
4015 - Portrait - Caution underground services
4018 - Portrait - Danger live wires overhead
4020 - Portrait - Danger buried cable
