If 7671 applied to HV and DNO equipment, might this be a code 3 if subject to periodic inspection? It is an 11KV pole on next to my house on land which was abandoned following failed planning permission for two houses. Following my notification of the possible danger of land slip, the DNO said it looked stable and they didn’t have concern. The photo below is the situation that prevailed when I notified them last year.
What is at the top of the bank please?
Agricultural land sloping upwards for around 80m.
Nothing to compare plumb to but it certainly now seems to have a slight lean toward the lower ground.
Taken just now;
is that brown strip a ditch or an embankment ??
If the poles have been properly planted to the design depth, there is unlikely to be a sudden problem unless quite deep excavations, up to about a 70cm close beside will not be catestrophic, but may be unwise.
Things at risk of falling over are normally stayed, so I assume the ground was surveyed as good when it went in.
This PDF is typical installers guidance, https://www.spenergynetworks.co.uk/userfiles/file/OHL-03-099.pdf
page 91 has planting depths for what I think are the right sorts of poles, but its not that clear from the pic, and your DNO is not this one, but the techniques are likely to be more or less common.
Even the low current 'hazel' spec lines that are the weediest get 1.8m minimum planting depth.
in wetter places such things may well have a 'bog shoe' see page 203 for an example
In summary there should be more than at first appears below ground, so assuming it does not wobble when you hit it, it probably is OK !
Mike.
