Nov 9, 2007 09:47
16 yrs ago
3 viewers *
French term
France
Le neutre doit être coupé
French to English
Tech/Engineering
Electronics / Elect Eng
I just need to run this past those of you who are more electrically "aware" than I am!
This occurs in a general specification for "machines" (I do not know exactly what machinery is involved; the spec is intended to be all-encompassing).
It has been stated earlier in the doc. that the arrangement used in the factory is "IT" and that neutral is only used for cabinet sockets (console and 16A).
Each cabinet will have a master switch which can be padlocked.
Each "cell" will be equipped with a 220 V AC contact socket (prise de contact) with 30 mA differential protection in proximity to the PLC and a socket outside the cabinet protected by a 16 A (30 mA) differential breaker.
220 V AC power will be supplied by a 380/220 V transformer specific to each cabinet. The external socket may use neutral.
The cabinets have a copper earthing bus.
Under the sub-section "Protection", it states that "le neutre doit être coupé au même titre que les phases". No fuses are allowed (except for special cases).
I have read through the information provided in http://www.proz.com/kudoz/1022854 and I think that it's saying that the neutral and the phase conductors must be isolated.
Is that correct?
This occurs in a general specification for "machines" (I do not know exactly what machinery is involved; the spec is intended to be all-encompassing).
It has been stated earlier in the doc. that the arrangement used in the factory is "IT" and that neutral is only used for cabinet sockets (console and 16A).
Each cabinet will have a master switch which can be padlocked.
Each "cell" will be equipped with a 220 V AC contact socket (prise de contact) with 30 mA differential protection in proximity to the PLC and a socket outside the cabinet protected by a 16 A (30 mA) differential breaker.
220 V AC power will be supplied by a 380/220 V transformer specific to each cabinet. The external socket may use neutral.
The cabinets have a copper earthing bus.
Under the sub-section "Protection", it states that "le neutre doit être coupé au même titre que les phases". No fuses are allowed (except for special cases).
I have read through the information provided in http://www.proz.com/kudoz/1022854 and I think that it's saying that the neutral and the phase conductors must be isolated.
Is that correct?
Proposed translations
(English)
| 5 +3 | The neutral must be switched |
Terry Richards
|
| 4 | neutral line must be switched off |
chris collister
|
Proposed translations
+3
9 mins
Terry Richards
France
France
Native in English
Works in field
France
30 years in IT, Engineering degree.
Native in: English (Variants: British, UK, US) 
Works in: French to English, English
Related KudoZ points
:
166
Selected
The neutral must be switched
in combination with the phases.
In certain fault situations, a voltage can be present on the neutral so this is just saying that the master switch must not only disconnect the "lives" but must also disconnect the neutral to ensure that the machine / rack / whatever is completely disconnected.
In certain fault situations, a voltage can be present on the neutral so this is just saying that the master switch must not only disconnect the "lives" but must also disconnect the neutral to ensure that the machine / rack / whatever is completely disconnected.
4 KudoZ points awarded for this answer.
Comment: "Thanks very much, gentlemen."
24 mins
chris collister
France
France
Native in English
Specializes in field
France
precision engineer, precision translator
Native in: English 
Works in: French to English
Related KudoZ points
:
353
neutral line must be switched off
This is just saying, that as an additional safety measure, the neutral line, which normally carries no current, should be disconnected as well as the three power phases.
The 30mA is an earth leakage current which if exceeded, will trip the whole circuit.
The 30mA is an earth leakage current which if exceeded, will trip the whole circuit.
Peer comment(s):
| neutral |
Terry Richards
: Unless the three phases are perfectly balanced, the neutral will carry CURRENT. It should normally be at (or very near) zero VOLTAGE.
14 mins
|
Something went wrong...