Overview
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Henri KUZYK: Trainer Project Manager at SFP (Service de la Formation Professionnelle), Électricité de France
INTRODUCTION
This booklet is part of a series on fault finding in power cable networks:
[D 4 541v2] "Power cables: fault finding and identification" ;
[D 4 542] "Power cables: fault prelocation by echometry" ;
[D 4 543] "Power cables: echometry theory" ;
[D 4 544] "Power cables: fault location methods" ;
[Doc. D 4 545] "Power cables. Troubleshooting".
Locating faults on power cables takes place in several stages: identification [D 4 541v2], pre-location [D 4 542] and [D 4 543] and precise location, which we will study in this dossier.
Also in this dossier: pre-location methods other than echometry, fault location on submarine cables and special features on HVB cables.
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Power cables: fault location methods
Other pre-location methods
History of fault finding
(from Henri HUBIN's book – "Un siècle d'histoire – Searching for cable faults" ISBN 2-9511856-1-8 Ó 2001)
EDF network faults
HV grids: 100,000 km, of which a very small proportion is underground. 400 kV, 225 kV, 90 kV and 63 kV
MV networks: 586,000 km, of which 250,000 km underground 95% at 20 kV. The remainder is divided between 10, 15 and very few 30 kV. Purchase and installation of 8,000 km of HVA underground cables per year
LV networks: 654,000 km, of which 216,000 km underground, with...
Job training
As the only network operator, EDF soon needed to develop the skills of groups of agents to carry out this specialist activity. In 1974, Mr. Henri HUBIN, at the Paris Training Center of EDF's Vocational Training Department, in Nanterre, was given the task of building a suitable training program, which would also enable him to invent new methods and materials. In close contact with all the manufacturers of laboratory vehicles,...
References
Standardization
Cable specifications
- Câbles sous plomb, isolés au papier imprégné - NFC 33-100 - 6-67
- Insulated or protected cables for power networks Rigid cables insulated with cross-linked polyethylene and sheathed with polyvinyl chloride. – H1 XDV-A series replaces HN 33-S-33 - NF C 33-210 - 08-95
- Câbles à isolation synthétique avec neutre périphérique, pour réseaux de distribution à basse tension annulée et non...
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