Power Line walk down before energization

[KillBill7]

As the engineer of record, what would be your typical checklist for line walk down before giving the go-ahead for energization?

I think other than obvious items like phasing looks correct, poles are not bending etc EOR can't really check anything else. Maybe its best to get signed record of inspection from the contractor with the confirmation that
1) All the assemblies are installed as per the engineering drawings.
2) sags are in accordance with the tables and that ground clearances comply with design requirements.
3) phasing is correct.
4) temporary safety grounds are removed.
5) all bolts and nuts are tight.

I'll appreciate any thoughts on this.

 

[crshears]

Odd as it might sound, ensure surge arrestors / lightning arrestors / rod gaps / spark gaps are appropriate for the highest expected operating voltage; I dinna recall if I've told this story before, but one day I took a call that a circuit that had originally been constructed for use at 230 kV but that had been operated at 115 kV for a number of years, with gaps in place so as to protect the connected trafos etc. from overvoltage, had had its reconfiguration for service @ 230 kV completed, and was ready to be placed on potential.

I requested and received verbal confirmation from the Commissioning Co-ordinator that, among other things, all spark/rod gaps had been widened to the correct gap for operation at 230 kV; sure enough, the ckt could not be energized successfully because it kept faulting at a set of spark gaps that hadn't been re-spaced.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]

 

[ElectricRob]

I used to inspect distribution lines before signing off on RUS Form 990's and found countless poles that weren't guyed properly. Linemen seem to think nothing of eliminating anchors or shortening guy leads for their own convenience.

 

[Coco_HueHueHue]

Make sure you have the good amount guy wires and their orientation is as per the Drawings.
Also make sure the poles shown as grounded on your drawing really are on site.

 

[EricElec]

Second the bit about grounding for safety reasons. Some elements maybe visible but mostly rely on test reports and HV contractor's sign off.