#2001041
Coigeartú coiscis na ngnáthshonraí NPD
Impedance adjustment of standard NPD data
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#2001048
Léirítear an coigeartú coiscis a chuirfear i bhfeidhm maidir leis na gnáthleibhéil NPD mar a leanas:
The impedance adjustment to be applied to the standard NPD levels is expressed as follows:
#2001050
Coigeartú coiscis i ndáil le dálaí iarbhír an atmaisféir ag an nglacadóir torainn (dB)
Impedance adjustment for the actual atmospheric conditions at the receiver point (dB)
#2001051
Fuaimchoisceas (niútan • soicind/m3) an aeir ag airde an aeradróim (agus 409.81 an coisceas aeir a ghabhann le dálaí tagartha atmaisféir na sonraí NPD sa bhunachar sonraí ANP).
Acoustic impedance (newton seconds/m3) of the air at the aerodrome elevation (409,81 being the air impedance associated to the reference atmospheric conditions of the NPD data in the ANP database).
#2001052
Ríomhtar coisceas ρ·c mar a leanas:
Impedance ρ·c is calculated as follows:
#2001055
Bíonn an coigeartú fuaimchoiscis níos lú ná cúpla deichiú de dB amháin de ghnáth.
The acoustic impedance adjustment is usually less than a few tenths of one dB.
#2623843
Úsáidtear na téarmaí líonra cobhsúcháin le haghaidh choisceas na líne V-AMN go hinmhalartaithe.
The terms line impedance stabilization network (LISN) and V-AMN are used interchangeably.
#2624275
Saintréithe choisceas AN ZPB
Characteristics of the AN impedance ZPB
#2624295
Féadfar líonra meaitseála coiscis roghnach a úsáid chun mód coiteann / mód difreálach mar a fheictear ag an ESA plugáilte isteach ar sholáthar cumhachta ardvoltais (féach Fíor 5).
An optional impedance matching network may be used to simulate common mode / differential mode impedance seen by the ESA plugged on HV power supply (see Figure 5).
#2624297
Líonra meaitseála coiscis ceangailte idir ANanna ardvoltais agus ESA
Impedance matching network attached between HV ANs and ESA
#2624299
ZDI-CM: Coisceas difreálach agus móid choitinn
ZDI-CM: Differential and common-mode impedance
#2624309
Saintréithe a bhaineann leis an gcoisceas AN athluchtaithe le DC
Characteristics of the DC-charging-AN impedance
#2624321
Tá mód coiscis coiteann de 150 Ω ag AAN.
The AAN has a common mode impedance of 150 Ω.
#2624334
Zcat: Coisceas coigeartaithe siméadrach
Zcat: Symmetric adjustment impedance
#2624355
Bíonn luach na bhfriotóirí ag brath ar an laghdú incheadaithe agus ar choisceas deartha an mhóideim PLC (anseo: laghdú 40dB, coisceas deartha PLC 100W).
The value of the resistors depends on the allowed attenuation and the design impedance of the PLC modem (here: 40dB attenuation, 100Ω PLC design impedance).
#2624361
Soláthraítear leis mód coiteann coiscis 150 Ω ± 20 Ω (150 kHz go 30 MHz) ar an líne phíolóta rialaithe chéanna (ag glacadh leis go bhfuil coisceas deartha 100 Ω i gceist maidir leis an móideim).
It provides a common mode impedance of 150 Ω ± 20 Ω (150 kHz to 30 MHz) on the control pilot line (assuming a design impedance of the modem of 100 Ω).
#2624377
Tá na luachanna a thugtar sa scéimléaráid bailí maidir le coisceas deartha de 100 Ω.
The values given in the schematic are valid for a design impedance of 100 Ω.
#2625097
8 líonra meaitseála coiscis (roghnach)
8 impedance matching network (optional)
#2625139
líonra meaitseála coiscis (roghnach) (féach ISO 11452-1)
impedance matching network (optional) (see ISO 11452-1)
#2625198
5 Ionsamhlóir coiscis
5 Impedance simulator
#2948443
Ionchur íosta coiscis
Minimum Input impedance
#2949365
— Tá moill ar an lódáil, is cosúil.
— Minimum Input Impedance (Ohm).
#2949369
1.1.1.3.4.2.2. Ionchur íosta coiscis
1.1.1.3.4.2.2 Minimum Input impedance
#2950692
coisceas idir rothaí (3.1.9),
impedance between wheels (3.1.9),
#2950706
Coisceas feithicle
Vehicle impedance
#2952574
(6) Maidir le haonaid leictreacha atá feistithe le pantagraf, íoschosc feithicle;
(6) For electric units equipped with a pantograph, the minimum vehicle impedance;
#2953521
(iii) Mionchoisceas Feithicle (Ohm).
(iii) Minimum vehicle impedance (Ohm).
#2954486
Maidir le haonaid leictreacha atá feistithe le pantagraf, íoschosc feithicle
For electric units equipped with a pantograph, the minimum vehicle impedance
#2955563
Coisceas mar a shainítear sa tsonraíocht dá dtagraítear in Aguisín A-1, innéacs [D]
Impedance as defined in the specification referenced in Appendix A-1, index [D]
#2956137
(3) Mionchoisceas Feithicle (Ohm).
(3) Minimum vehicle impedance (Ohm).
#2001043
Sula gcuirfear an modh idirshuite/eachtarshuite ar tugadh tuairisc air cheana i bhfeidhm, cuirfear coigeartú fuaimchoiscis i bhfeidhm maidir leis na gnáthshonraí NPD sin.
Before applying the interpolation/extrapolation method previously described, an acoustic impedance adjustment shall be applied to these standard NPD data.
#2001044
Baineann fuaimchoisceas le hiomadú fuaimthonnta i meán fuaime, agus sainítear é mar tháirgeadh an dlúis aeir agus an luais fuaime.
Acoustic impedance is related to the propagation of sound waves in an acoustic medium, and is defined as the product of the density of air and the speed of sound.
#2001056
Go háirithe, ba cheart a thabhairt faoi deara, faoi ghnáthdhálaí an atmaisféir (p0 = 101.325 kPa agus T0 = 15.0 °C), gurb ionann an coigeartú fuaimchoiscis agus níos lú ná 0.1 dB (0.074 dB).
In particular, it should be noted that under the standard atmospheric conditions (p0 = 101,325 kPa and T0 = 15,0 °C), the impedance adjustment is less than 0,1 dB (0,074 dB).
#2623841
Ciallaíonn “líonra príomhlíonra saorga (AMN)” líonra a sholáthraíonn coisceas sainithe don ESA ar radaimhinicíochtaí, a chúplálann an voltas suaite leis an nglacadóir tomhais agus a dhíchúplálann an ciorcad tástála ón bpríomhlíonra soláthair.
‘Artificial mains network (AMN)’ means provides a defined impedance to the ESA at radio frequencies, couples the disturbance voltage to the measuring receiver and decouples the test circuit from the supply mains.
#2624263
Léirítear coisceas AN ZPB (lamháltas ± 20 %) sa raon tomhais minicíochta idir 0.1 MHz agus 100 MHz i bhFíor 2.
The AN impedance ZPB (tolerance ± 20 %) in the measurement frequency range of 0,1 MHz to 100 MHz is shown in Figure 2.
#2624281
Léirítear coisceas AN-HV ZPB (lamháltas ± 20 %) sa raon minicíochta tomhais idir 0.1 MHz agus 100 MHz i bhFíor 2.
The HV-AN impedance ZPB (tolerance ± 20 %) in the measurement frequency range of 0,1 MHz to 100 MHz is shown in Figure 2.
#2624303
Léirítear coisceas ZPB AN athluchtaithe le DC (lamháltas ±20 %) sa raon tomhais minicíochta idir 0.1 MHz agus 100 MHz i bhFíor 7.
The DC-charging-AN impedance ZPB (tolerance ±20 %) in the measurement frequency range of 0,1 MHz to 100 MHz is shown in Figure 7.
#2624322
Coigeartaíonn coisceas Zcat siméadracht an cháblaithe agus an fhorimill cheangailte a shloinntear mar chaillteanas tiontaithe fadchearchaill (LCL) de ghnáth.
The impedance Zcat adjusts the symmetry of the cabling and attached periphery typically expressed as longitudinal conversion loss (LCL).
#2624345
Is éard atá sa tanaitheoir sin dhá fhriotóir in éineacht le coisceas ionchuir/aschuir mhóideim PLC.
This attenuator consists of two resistors in combination with the input/output impedance of the PLC modem.
#2624346
Bíonn luach na bhfriotóirí ag brath ar choisceas deartha na móideimí PLC agus ar an maolú incheadaithe le haghaidh an chórais PLC.
The value of the resistors depends on the design impedance of the PLC modems and the allowed attenuation for the PLC system.
#2624376
Bíonn luachana na dtrí fhriotóir ag brath ar choisceas deartha mhóideim PLC atá nasctha taobh AE.
The values of the three resistors depend on the design impedance of the PLC modem connected at AE side.
#2624381
Soláthraítear leis mód coiteann coiscis 150 Ω ± 20 Ω (150 kHz go 30 MHz) ar an líne phíolóta rialaithe chéanna (idir A agus B/D).
It provides a common mode impedance of 150 Ω ± 20 Ω (150 kHz to 30 MHz) on the control pilot line (between A and B/D).
#2624910
Go ginearálta, beidh na comhpháirteanna cosanta Ard Voltais (HV) uile nasctha i gceart le coisceas íseal chun talmhú (e.g. AN, cáblaí, nascóirí etc.).
Generally all shielded High Voltage (HV) parts shall be properly connected with low impedance to ground (e.g. AN, cables, connectors etc.).
#2624922
Mura sonraítear a mhalairt, beidh an ESA nasctha leis an bplána talún go díreach nó trí choisceas sainithe.
Unless otherwise specified, the ESA case shall be connected to the ground plane either directly or via defined impedance.
#2956452
(a) teorainneacha an tsrutha trasnaíochta do chiorcaid rianta lena n-áirítear na modhanna meastóireachta agus coisceas feithicle i gcomhréir le clásal 3.2.2 de ERA/ERTMS/033281 rev 5.0;
(a) the interference current limits for track circuits including the evaluation methods and vehicle impedance in accordance with clause 3.2.2 of ERA/ERTMS/033281 rev 5.0;
#3103316
Uirlisí tomhais leictreacha analógacha táscacha dírghíomhacha agus a n-oiriúintí - Cuid 6: Riachtanais speisialta maidir le hóm-mhéadair (méadair coiscis) agus méadair seoltais
Direct acting indicating analogue electrical measuring instruments and their accessories – Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters
#3103671
Sábháilteacht leictreach i gcórais dáilte ísealvoltais suas le 1000 V a.c. agus 1500 V d.c. - Trealamh le haghaidh bearta cosanta a thástáil, a thomhas nó a mhonatóiriú- Cuid 3: Coiscis lúibe
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. – Equipment for testing, measuring or monitoring of protective measures – Part 3: Loop impedance
#639310
Caithfear comhábhair agus comhpháirteanna eile na gcineálacha TCP sin a roghnú nó a cheapadh agus a ionchorprú chun an méid cosanta is gá a sholáthar faoi réir na gcoinníollacha úsáide a bhfuil coinne leo gan méadú a chur ar uaireanta teagmhála mar thoradh ar choisceas ghothaí, iompar coirp nó ghluaiseacht an úsáideora (féach 1.3.2).
The constituent materials and other components of these types of PPE must be so chosen or designed and incorporated as to provide the degree of user protection required by the foreseeable conditions of use without leading to an increase in exposure time as a result of the impedance of user gestures, posture or movement (see 1.3.2).
#700413
Caithfear comhábhair agus comhpháirteanna eile na gcineálacha sin TCP a roghnú nó a dhearadh agus a ionchorprú chun an méid cosanta is gá a sholáthar faoi réir na ndálaí úsáide intuartha gan méadú a chur ar uaireanta teagmhála mar thoradh ar choisceas ghothaí, iompar coirp nó ghluaiseacht an úsáideora (féach pointe 1.3.2).
The constituent materials and other components of these types of PPE must be chosen or designed and incorporated so as to provide the degree of user protection required by the foreseeable conditions of use without leading to an increase in exposure time as a result of the impedance of user gestures, posture or movement (see point 1.3.2).
#1932323
Ní mór comhcheangal na méadar cumhachta USB BOU a thástáil go hiomlán chun a áirithiú nach bhfuil a ndearadh agus a riocht cothabhála ag cur isteach ar fheidhm braite coiscis cábla de roinnt caighdeán seachadta cumhachta USB.
The USB BOU power meter combination must be fully tested to ensure that their design and maintenance condition do not interfere with the cable impedance sensing function of some USB power delivery standards.