Automatic alarm device for overheating of line lead connection fitting

• Main Authors: ZHANG LIANG, ZHENG YUESONG, HUANG RU, YIN YI, GUO WEI, CHEN CHEN, WANG YUN, TANG YAKE, NIU KAI, PEI HAOWEI, DONG PINGXIAN, GUO FEI, WEI RONGSHENG
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: ALARM SYSTEMS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention discloses an automatic alarm device for overheating of a line conductor connection fitting. The automatic alarm device comprises a cast iron fixing bolt and an alarm device, the cast iron fixing bolt is used for fixing the crimping wire clamp and the drainage plate at the strain tower; the cast iron fixing bolt is made of a cast iron material and comprises a bolt head, a screw rod and a nut; a space is reserved in the center of the interior of the bolt head and part of the screw rod, and a first through groove is formed. An alloy component is arranged in the first through groove; and the warning device is arranged on a cross arm of the strain tower and is used for monitoring the position of the alloy component. According to the characteristic of different thermal expansion and cold contraction degrees of two objects, when a certain temperature is reached, the alarm device is triggered to act, the heating problem at the joint of the conductors is found in advance, and repair and maintenance proce