×

Net radiation sensor

  • US 5,559,430 A
  • Filed: 07/27/1994
  • Issued: 09/24/1996
  • Est. Priority Date: 07/27/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. The method of determining the maximum designed current carrying capacity of an electrical power line conductor mounted between transmission towers providing a predetermined location and directional orientation under particular solar heating conditions in which ##EQU3## qc is the convective heat loss qr is the radiation heat lossqs is the heat from solar radiationcomprising:

  • the steps of providing a conductor section having substantially the same cross sectional area, heat capacity, and heat emissivity/absorptivity of the power line conductor;

    locating the said conductor section in close proximity to the power line conductor;

    orienting the said conductor section in a direction corresponding to the directional orientation of the power line conductor;

    measuring the ambient temperature at the location of the conductor section;

    measuring the temperature of the conductor section; and

    calculating the maximum current using the said ambient temperature and conductor temperature measurements.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×