Mar 12, 2018 09:34
6 yrs ago
4 viewers *
Dutch term
electrical safety
Dutch to English
Tech/Engineering
Electronics / Elect Eng
nuttig deel (van de aardelektrode)
Belgian training course on electrical safety. In the section on protection against electric shock, some definitions are given:
Aardelektrode : In de grond aangebracht geleidend deel dat de elektrische verbinding verzekert met de aarde
Nuttig deel v/d aardelektrode : Deel van de aardelektrode onder de vriesgrens
Dit is 60 cm onder het maaiveld
The French equivalent seems to be "partie utile" but I can find no support for the literal "useful part" so I suspect it must be something different. Vriesgrens seems to be "frost line" but doesn't narrow down the search.
Aardelektrode : In de grond aangebracht geleidend deel dat de elektrische verbinding verzekert met de aarde
Nuttig deel v/d aardelektrode : Deel van de aardelektrode onder de vriesgrens
Dit is 60 cm onder het maaiveld
The French equivalent seems to be "partie utile" but I can find no support for the literal "useful part" so I suspect it must be something different. Vriesgrens seems to be "frost line" but doesn't narrow down the search.
Proposed translations
(English)
| 4 | active part |
Ronald van Riet
|
| 3 +2 | effective part |
Textpertise
|
References
| It's all about resistance |
Barend van Zadelhoff
|
Proposed translations
8 mins
Ronald van Riet
Native in Dutch
&
English
Specializes in field
technical translator to English & Dutch
Native in: Dutch (Variant: Netherlands) 
, English (Variants: British, UK, US)
Works in: English to Dutch, Dutch to English, German to Dutch, and 1 more.
Related KudoZ points
:
7
Selected
active part
this seems the most logical
3 KudoZ points awarded for this answer.
Comment: "So if I've understood this right, it's the part of the earth electrode that is not (or is least) affected by soil resistivity. This doc (http://www.cigre.cl/wp-content/uploads/2017/02/Brochure-Cigre-FRancia-HVDC-Electrones-675.pdf) does mention the active part of electrodes so I'll go with that. Thanks, everyone."
+2
29 mins
Textpertise
United Kingdom
United Kingdom
Native in English
Works in field
United Kingdom
Highest WWA rating in Europe for NL-EN
Native in: English 
Works in: Dutch to English, Hebrew to English
Related KudoZ points
:
12
Dutch term (edited):
nuttig deel
effective part
I doubt that there is any "correct" translation of your term because I do not believe this is a standard technical term. I am just proposing this as an alternative to Ronald's answer. It is up to you whether you prefer active part or effective part or some other suggestion that may be made.
Peer comment(s):
| agree |
Mair A-W (PhD)
11 mins
|
|
Thanks, Mair
|
|
| agree |
Richard Purdom
1 day 13 hrs
|
|
Thanks, Richard
|
Reference comments
7 hrs
Barend van Zadelhoff
Netherlands
Netherlands
Native in Dutch
Netherlands
TR is the most intimate act of reading.
Native in: Dutch
Works in: English to Dutch, Dutch to English, Dutch
Related KudoZ points
:
8
Reference:
It's all about resistance
What affects grounding resistance?
First, the NEC code (987, 50-83-3) requires a minimum ground electrode length of 2.5 meters (8.0 feet) to be in contact with soil.
Soil composition, moisture content, and temperature all influence the soil resistivity, so it is recommended that the ground rods be placed as deep as possible into the earth to be most effective.
Nevertheless, four variables affect the ground resistance of a ground system:
1. Length/depth of the ground electrode
One very effective way of lowering ground resistance is to drive ground electrodes deeper. Soil is not consistent in its resistivity and can be highly unpredictable.
It is critical when installing the ground electrode that it is below the frost line. This is done so that the resistance to ground will not be greatly influenced by the freezing of the surrounding soil. Generally, by doubling the length of the ground electrode you can reduce the resistance level by an additional 40%.
2. Diameter of the ground electrode
http://electrical-engineering-portal.com/download-center/boo...
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Note added at 11 hrs (2018-03-12 20:57:10 GMT)
--------------------------------------------------
Approximately 90 percent of all grounding electrode systems for structures are driven rods. The NEC requires all driven rods to be a minimum eight feet in the earth and for multiple connected rods a minimum spacing of six feet between rods. The width of the rod has little effect on reducing impedance to earth, however, the depth of the rod and spacing for multiple rods have a significant effect. Frozen soil has about four times the resistivity of 50 degree Fahrenheit soil. Greater distances between multiple rods also decreases the overall impedance to earth. Site Audits often encourage managers to consider installing ten foot or longer rods a minimum of eight feet below the frost line and installing multiple rods at a distance equal to their depth in the soil.
https://www.polyphaser.com/services/media-library/blog/novem...
First, the NEC code (987, 50-83-3) requires a minimum ground electrode length of 2.5 meters (8.0 feet) to be in contact with soil.
Soil composition, moisture content, and temperature all influence the soil resistivity, so it is recommended that the ground rods be placed as deep as possible into the earth to be most effective.
Nevertheless, four variables affect the ground resistance of a ground system:
1. Length/depth of the ground electrode
One very effective way of lowering ground resistance is to drive ground electrodes deeper. Soil is not consistent in its resistivity and can be highly unpredictable.
It is critical when installing the ground electrode that it is below the frost line. This is done so that the resistance to ground will not be greatly influenced by the freezing of the surrounding soil. Generally, by doubling the length of the ground electrode you can reduce the resistance level by an additional 40%.
2. Diameter of the ground electrode
http://electrical-engineering-portal.com/download-center/boo...
--------------------------------------------------
Note added at 11 hrs (2018-03-12 20:57:10 GMT)
--------------------------------------------------
Approximately 90 percent of all grounding electrode systems for structures are driven rods. The NEC requires all driven rods to be a minimum eight feet in the earth and for multiple connected rods a minimum spacing of six feet between rods. The width of the rod has little effect on reducing impedance to earth, however, the depth of the rod and spacing for multiple rods have a significant effect. Frozen soil has about four times the resistivity of 50 degree Fahrenheit soil. Greater distances between multiple rods also decreases the overall impedance to earth. Site Audits often encourage managers to consider installing ten foot or longer rods a minimum of eight feet below the frost line and installing multiple rods at a distance equal to their depth in the soil.
https://www.polyphaser.com/services/media-library/blog/novem...
Discussion
conductive part, which may be embedded in the soil or in a specific conductive medium, e.g. concrete or coke, in electric contact with the Earth