switchgear+and+controlgear+assemblies

... LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES Part 1: Type-tested and partially type-tested assemblies General 1.1 Scope and object This International Standard applies to low-voltage switchgear and ... typetested assemblies (PTTA) of low-voltage switchgear and controlgear IEC 60947-1:1988, Low-voltage switchgear and controlgear Part 1: General rules IEC 60947-4-1:1990, Low-voltage switchgear and controlgear ... - International Standard IEC 60439-1 has been prepared by subcommittee 17D: Low-voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear  10 ...

Ngày tải lên: 25/12/2013, 11:00

... Low-voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear This third edition cancels and replaces the second edition published in 1987 and its amendment ... International Standards transparently to the maximum extent possible in their national and regional standards Any divergence between the IEC Standard and the corresponding national or regional standard ... bunched : wires or cables IEC 60439-1 1999,Low-voltage switchgear and controlgear assemblies - Part : Type-tested : and partially type-tested assemblies IEC 60570:1995, Electrical supply track systems...

Ngày tải lên: 25/12/2013, 11:05

... utilisation Tableaux de rộpartition Low-voltage switchgear and controlgear assemblies Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in ... 60439-3 - First edition (1990): Low voltage switchgear and controlgear assemblies - Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in ... 1990+A1: 1993 +A2:2001 -11 - LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES - Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in...

Ngày tải lên: 25/12/2013, 11:06

... 60439-4 has been prepared by subcommittee 17D: Low-voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear This consolidated version of IEC 60439-4 ... amendments and Assemblies for construction sites (ACS) shall comply with all requirements of IEC 60439-1 (1985): Low-voltage switchgear and controlgear assemblies, Part 1: Requirements for typetested and ... the following additions and modifications: 2.1.1.2 Partially type-tested LV switchgear and controlgear assembly (PTTA) Not applicable 2.1.1.3 Low voltage switchgear and controlgear assembly for...

Ngày tải lên: 25/12/2013, 11:07

... 60439-5 has been prepared by subcommittee 17D: Low-voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear This consolidated version of IEC 60439-5 ... 60439-1 (1992): Low-voltage switchgear and controlgear assemblies, Part 7: Type-tested and partially type tested assemblies, if not otherwise indicated hereinafter and shall also comply with the ... Information Handling Services 60439-5 O IEC:1996+A.1:1998 -5- INTERNATIONAL ELECTROTECHNICAL COMMISSION LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES Part 5: Particular requirements for assemblies...

Ngày tải lên: 25/12/2013, 11:08

Ngày tải lên: 28/09/2014, 23:27

... of switchgear and controlgear for voltages up to and including 000 V a.c and 200 V d.c BS 5486, Low-voltage switchgear and controlgear assemblies BS 5486-1, Specification for type-tested and ... 16 mm2 Neutral busbars of SP and N fuseboards (see 7.1.4.1) and 20 A and 32 A TP and N fuseboards shall have one outgoing terminal for each fuse For all other TP and N fuseboards the neutral ... provided as follows: a) SP and N (all ratings of fuseway), one terminal for each fuseway; b) TP and N (20 A and 32 A fuseways), one terminal for each fuseway; c) TP and N (63 A and 100 A fuseways),...

Ngày tải lên: 28/09/2014, 23:27

... compartmented switchgear and controlgear (with - cubicle switchgear and controlgear one or more non-metal1ic.partition.s); 3.102.1 Metal-clad switchgear and controlgear Metal-enclosed switchgear and controlgear ... devices and equipment with assodatedinterconnections, accessories, enclosures and supportingstructures (IEV 441-1 1-01) 3.102 Metal-enclosed switchgear and controlgear Switchgear and controlgear assemblies ... specified in I E C 466 are met 3.102.3 Cubicle switchgear and controlgear Metal-enclosed switchgear and controlgear, other than switchgear and controlgear COPYRIGHT 2002; International Electrotechnical...

Ngày tải lên: 25/12/2013, 10:57

... Low-voltage switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear This second edition cancels and replaces the first edition published in 1992, amendment (1997) and amendment ... to 6.1.1 and 6.1.2 above: – Data a and b and relevant operational data under d, e, and f – Data a and b shall be marked on the CPS and preferably on the nameplate if any – Data under c and n shall ... SWITCHGEAR AND CONTROLGEAR – Part 6-2: Multiple function equipment – Control and protective switching devices (or equipment) (CPS) Scope and object This part of IEC 60947 applies to control and...

Ngày tải lên: 04/04/2014, 12:00

... 60050(441) 3.1 General terms 3.1.101 switchgear and controlgear [IEV 441-11-01] 3.1.102 indoor switchgear and controlgear [IEV 441-11-04] 3.1.103 outdoor switchgear and controlgear [IEV 441-11-05] 3.1.104 ... current contactors and contactor based motor-starters Metal enclosed switchgear and controlgear for rated voltages up to and including 38 kV Insulation-enclosed switchgear and controlgear for rated ... switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear This consolidated version of IEC 62271-100 is based on the first edition (2001) [documents 17A/589/FDIS and...

Ngày tải lên: 04/04/2014, 12:34

... metal-enclosed switchgear and controlgear for rated voltages above kV and up to and including 52 kV IEC 60298 201 Insulation-enclosed switchgear and controlgear for rated voltages up to and including ... International Standard IEC 62271-203 has been prepared by subcommittee 17C: High-voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear and controlgear This ... definitions, apply 3.101 metal-enclosed switchgear and controlgear switchgear and controlgear assemblies with an external metal enclosure intended to be earthed, and complete except for external connections...

Ngày tải lên: 04/04/2014, 12:34

... 200 Metal enclosed switchgear and controlgear for rated voltages up to and including 52 kV IEC 60298 201 Insulation-enclosed switchgear and controlgear for rated voltages up to and including 52 ... the standards falling under the responsibility of SC 17A and SC 17C IEC 62271 (with title High-voltage switchgear and controlgear) is the basis of the common standard Numbering of the standards ... short-circuit and switching test procedures for metal-enclosed and dead tank circuit-breakers IEC 61633 303 Use and handling of sulphur hexafluoride (SF ) in high-voltage switchgear and controlgear...

Ngày tải lên: 04/04/2014, 12:35

... metal-enclosed switchgear and controlgear for rated voltages above kV and up to and including 52 kV IEC 60298 201 AC insulation-enclosed switchgear and controlgear for rated voltages above kV and up to and ... transformers and gas-insulated metal-enclosed switchgear for rated voltages of 72,5 kV and above IEC 61639 307 Use of electronic and associated technologies in auxiliary equipment of switchgear and controlgear ... handling of sulphur hexafluoride (SF ) in high-voltage switchgear and controlgear IEC 61634 304 Additional requirements for enclosed switchgear and controlgear from kV to 72,5 kV to be used in severe...

Ngày tải lên: 04/04/2014, 12:38

... used bridging ligands.43 The pincer [NCN] Pt(II) complexes bridged by dppm (1.20a and 1.21a), deprotonated pyrazole (1.20b and 1.21b) and deprotonated imidazole ligands (1.20c and 1.21c) were ... namely the homo- and heterometallic complexes bridged by the phosphido ligands The chemical properties of a phosphido ligand and its complexes are different from the ligands and their corresponding ... supported by these ligands 1.3 Homo- and Heterometallic Complexes Bridged by the Phosphido Ligands Phosphido ligand [(PR2) -] is an important supporting ligand in homo-52 and heterometallic53...

Ngày tải lên: 11/09/2015, 09:01

... [2.129(4) Å] and [Pd(OH2)(PCP-tBu2)][BPh4] [2.056(6) Å], reflecting the intermediate trans influence of chloro-ligand compared to the methyl and aqua ligands 37 Chapter Two: Synthesis and Ligand Displacement ... 2.17a (-76.0 ppm and -76.1 ppm) and 2.18 on the other hand showed two peaks (-77.3 ppm and -77.4 ppm), which can be explained by the 10 B/11B 68 Chapter Two: Synthesis and Ligand Displacement ... of triflato-, nitrato- and aqua ligands in complexes 2.16a, 2.16b and 2.17a that lie between that of the chloro ligand in complex 2.1 70 Chapter Two: Synthesis and Ligand Displacement Reactions...

Ngày tải lên: 11/09/2015, 09:01

... metalloligand [Pd(4Spy)(PCP)] 3.4 was prepared by a standard ligand replacement reaction135 of complex 2.1 with 4-pyridinethiolate ligand The thiolato ligand was generated insitu from 4-pyridinethiol and ... of the bridging dppf ligand and a long Pd-C bond) The steric crowding between the dppf ligand and the pincer moiety are indicated by the upfield shift of the Cp protons and the highly distorted ... complexes in both solution and solid states will be discussed 3.2 Results and Discussion 3.2.1 Synthesis and Characterisation of the Ligand-bridged Complexes of Dppf and 4,4’-Bipyridine The triflato...

Ngày tải lên: 11/09/2015, 09:01

... donor ligand is different from other neutral ligands such as the bipyridine, bisphosphine and the metalloligands as described in Chapter Two and Chapter Three The background of the homoand heterometallic ... involving the Ag and Mn atoms.145d X-ray structural analyses of clusters 4.4a and 4.4b revealed a metal triangle with the phosphido ligand bridging the Mn-Mn bond and a phosphine ligand bridging ... gave a mixture of 4.3a and 4.3b at 1st major yellow band (0.0784g) Clusters 4.4a and 4.4b were obtained at the 2nd minor band (0.0080g) 31 P {1H} NMR spectrum of 1st band (in CDCl3) suggest 4.3b...

Ngày tải lên: 11/09/2015, 09:01

... Three and Chapter Four, the oxalato ligand can link two or more metal centres while acting as a bridging tetradentate ligand [Figure 1-9, (d) and (f)] The complexes obtained from this ligand often ... oxalato ligand The chemistry and the applications of oxalato complexes have been reviewed in Section 1.4 Different from the bridging bidendate bipyridine, disphosphine and the phosphido ligands described ... The proposed degradative pathways and products are summarised in Equations 5-3, 5-4 and 5-5 All byproducts [C4 H8, H2, CO2 , CO and (n-C4H9)3N] are volatile and thus they are easily removed from...

Ngày tải lên: 11/09/2015, 09:01

... and phosphido ligands as well as the heterometallic oxalato-bridged complexes The objective of this work was to develop convenient synthetic methodologies, understand the formation pathways and ... by the phosphido and bisphosphine ligands The oxalato complexes reported in Chapter Five are polymeric networks containing the paramagnetic metal centres [Mn(II) and Cr(III)] and the main group ... obtained via ligand displacement reactions The Ag/Mn heterometallic clusters 4.3a and 4.3b were obtained from condensation reactions between 4.1144 and the Ag(I) diphosphine complexes 4.2a and 4.2b.147,...

Ngày tải lên: 11/09/2015, 09:01

... 2.19) It shows a broad and poorly structured emission band between 400 and 550 nm with maxima at 433 and 453 nm Like its absorption spectrum, such a structured emission band is assigned to the ... complexes depends on the nature of the ancillary ligand,20 changing the ancillary ligand of ( -PAnP)(AuX)2 may help us understand how Au-Au and - interactions cooperate or compete with each other ... method, basis set and different pseudopotentials used, and on relativity.35 More recently, fifteen molecules containing the AuI species were calculated by ab initio HF and MP2 methods and by five different...

Ngày tải lên: 15/09/2015, 17:10