Defect detection method, apparatus, and device for semi-conducting bedding layer of power cable

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12019044
APP PUB NO 20240175839A1
SERIAL NO

17776221

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Defect detection method for a semi-conducting bedding layer of a power cable includes: obtaining a length parameter, a corrugation pitch parameter, radius parameters, and a thickness parameter of a power cable; obtaining a first resistance value between a shield and a corrugated sheath, and calculating a second resistance value of the shield based on the length parameter and the corrugation pitch parameter; calculating a radial resistance value of the semi-conducting bedding layer based on the first resistance value and the second resistance value; determining a contact angle of a critical point of contact between the corrugated sheath and the semi-conducting bedding layer based on the radius parameters and the thickness parameter; calculating volume resistivity of the semi-conducting bedding layer based on the radial resistance value and the contact angle; and comparing the volume resistivity with a preset evaluation parameter to obtain a defect detection result of the semi-conducting bedding layer.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
STATE GRID TIANJIN ELECTRIC POWER COMPANYNO 39 WUJING ROAD HEBEI DISTRICT TIANJIN 300010
ELECTRIC POWER SCIENCE & RESEARCH INSTITUTE OF STATE GRID TIANJIN ELECTRIC POWER COMPANYNO 8 HAI TAI HUA KE 4TH ROAD HUAYUAN INDUSTRIAL DISTRICT BINHAI NEW AREA TIANJIN 300450 300450

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Wei Tianjin, CN 235 3308
Fang, Shengchen Tianjin, CN 2 0
He, Chun Tianjin, CN 31 489
Li, Longji Tianjin, CN 3 0
Li, Xu Tianjin, CN 520 6257
Meng, Zhengzheng Tianjin, CN 4 3
Song, Pengxian Tianjin, CN 2 0
Sun, Cheng Tianjin, CN 51 143
Tang, Qinghua Tianjin, CN 4 0
Wang, Haoming Tianjin, CN 5 1
Wang, Nan Tianjin, CN 270 961
Xu, Ke Tianjin, CN 254 720
Yang, Lei Tianjin, CN 411 2241
Yu, Yang Tianjin, CN 361 2035
Zhang, Chi Tianjin, CN 419 2663
Zhang, Jun Tianjin, CN 1152 7034
Zhou, Fengzheng Tianjin, CN 3 3
Zhu, Mingzheng Tianjin, CN 1 0
Zhu, Xiaohui Tianjin, CN 30 115

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 25, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 25, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 25, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00