Wood Pole Overhead Lines
Concentrating on the mechanical aspects of distribution wood pole lines, this informative text includes coverage of live line working, environmental influences, climate change and international standards.
TABLE OF CONTENTS Wood Pole Overhead Lines
Chapter 12: Specific Line Inspection Regimes
12.1 Introduction
Overhead line asset owners have a statutory obligation under the Electricity Supply Regulations to ensure that the network equipment is sufficient for the purposes for and the circumstances in which they are used and so constructed, installed (both electrically and mechanically), used and maintained as to prevent danger and interruption of supply, so far as is reasonably practicable .
In order to achieve this, inspection regimes have historically been introduced to consider the onsite condition of these assets and therefore determine what should be done to avoid both interruption of supply and danger to the public. Chapter 11 explained the techniques and philosophy of inspection; this chapter considers line component inspection in detail.
12.2 Field inspection of networks
12.2.1 Field inspections and data acquisition
This inspection is a detailed asset-and reliability-centred data acquisition programme that not only considers the existing and projected life of overhead line materials and apparatus, but also considers their design reliability to withstand severe weather conditions in their geographical locations.
This section is a brief look at the various aspects of line inspection and the necessity to collect relevant data, and it is intended to be used by inspectors for guidance only.
12.2.2 Guidance notes for distribution overhead line wood pole inspection
12.2.2.1 General
When inspecting overhead lines thought should be given to the continued stability of the line and its safe operation. The inspection should consider each component inspected to be fit for purpose for a duration not less than 15 years from the...
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