Worker safety during various maintenance procedures common to underground residential distribution

Author

King, Clayton C.

Volume

3

fYear

2003

fDate

7-12 Sept. 2003

Firstpage

926

Abstract

The results of a high current test program studying worker safety during various common work procedures of underground residential distribution maintenance are presented. The tests involved maintenance procedures in and around below grade concrete vaults with interconnecting cables in buried PVC conduit. An elbow terminated each cable. A measurement of the voltage developed across the worker´s body was made during each test and compared against a 50 volt allowed maximum. Procedures studied include the worker standing in the vault, standing near the vault, in contact with transformers connected in the vaults and while pumping water from a flooded vault.

Keywords

earth electrodes; electric shocks; power distribution lines; underground cables; underground residential distribution systems; 50 V; PVC; current test program; electric shock; grounding electrodes; interconnecting cables; power distribution maintenance; power system maintenance; pumping water; transformer; underground power distribution lines; underground residential distribution; voltage measurement; Cables; Concrete; Conductors; Elbow; Electrical safety; Grounding; Hazards; Laboratories; Protection; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2003 IEEE PES

Print_ISBN

0-7803-8110-6

Type

conf

DOI

10.1109/TDC.2003.1335061

Filename

1335061