mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
For me its posting stuff. Very fussy, and keep getting errors.
Grass Growth in Substations
- Thread starter mbrooke
- Start date
- Status
For me its posting stuff. Very fussy, and keep getting errors.
AFAIK, we do not allow grass to grow inside our substations. We continually screen our substation pebble matting every year, return the pebble while taking away possible soil brought in by foot traffic and equipment tires.
iceworm
Curmudgeon still using printed IEEE Color Books
- Location
- North of the 65 parallel
- Occupation
- EE (Field - as little design as possible)
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Can you post more of it? Don't want to dig atm.
We are required to put in a layer of gravel 6” deep. It is for step potential.
Yes, we have weeds occasionally, and spray them to keep them from the Substation. With all that grass it looks like it would also invite wildlife of some type.
Yes, we have weeds occasionally, and spray them to keep them from the Substation. With all that grass it looks like it would also invite wildlife of some type.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
This has me stumped beyond words. Every substation I has seen in North America has a gravel top surface, and thats all I know, only to be told grass is better...
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Required by company policy or mandate in the NESC/IEEE/ect?
We are required to put in a layer of gravel 6” deep. It is for step potential.
Yes, we have weeds occasionally, and spray them to keep them from the Substation. With all that grass it looks like it would also invite wildlife of some type.
1. Proper grounding calculations and grid design should result in acceptable touch and step potential voltages without the additional grounding platform grounding. However, since the operation of the switch places the operator directly at risk when a substation fault occurs, additional precautions are needed. This includes adding switch grounding platforms and a 3- to 6-inch layer of clean crushed rock that covers the entire area inside the substation fence and extends 3 to 4 feet outside the substation fence to reduce the risk of electric shock.
Yes, we have weeds occasionally, and spray them to keep them from the Substation. With all that grass it looks like it would also invite wildlife of some type.
1. Proper grounding calculations and grid design should result in acceptable touch and step potential voltages without the additional grounding platform grounding. However, since the operation of the switch places the operator directly at risk when a substation fault occurs, additional precautions are needed. This includes adding switch grounding platforms and a 3- to 6-inch layer of clean crushed rock that covers the entire area inside the substation fence and extends 3 to 4 feet outside the substation fence to reduce the risk of electric shock.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
In theory, if you design the grid well enough, could you skip the rock? Or rather say, an engineer came to you and said a 500kv 161kv 34.5kv substation is being constructed with a ground grid such that calculations show the crushed rock can be ditched. What would got through your mind, and what would be your technical objection?
RUS specifications. Sorry for the double post, still getting used to the format and buttons...
https://www.rd.usda.gov/files/UEP_Bulletin_1724E-300.pdf
https://www.rd.usda.gov/files/UEP_Bulletin_1724E-300.pdf
Well, for one is mowing the grass, the accumulation of grass over the years creating compost dirt, and the inability to get vehicles around the Substation yard during inclement weather.
Another would be AMI also crawling through the grass and up on the structure causing even more trouble when they short out something.
Another would be AMI also crawling through the grass and up on the structure causing even more trouble when they short out something.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Are you getting an error message every time you post?
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
KISS it!
animals = "snakes", the most prolific climbers unto switchyard structures and unto the HV wires! They love to crawl on grasses! Our usual causes of circuit trips!
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Its not supposed to be like that though. I'm in my home computer.
junkhound
Senior Member
- Location
- Renton, WA
- Occupation
- EE, power electronics specialty
FWIW, another non-technical factor.
'Progressive' political entities like Seattle with municipal power company do not do everything by technical rationale.
For instance, since the early 1970s 1% of substation cost Is required to be spent on artistic effort and making substations 'look good', '1% for the arts"
https://www.historylink.org/File/10645
Also, what country is that substation in? Albania, Turkey ?? Note the spelling on the placard "Sistem 3" et. Al.
'Progressive' political entities like Seattle with municipal power company do not do everything by technical rationale.
For instance, since the early 1970s 1% of substation cost Is required to be spent on artistic effort and making substations 'look good', '1% for the arts"
https://www.historylink.org/File/10645
Also, what country is that substation in? Albania, Turkey ?? Note the spelling on the placard "Sistem 3" et. Al.
mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Slovenia, but this I see all over the world from India to South America to the Islands. Like everywhere outside North America.
- Status