low voltage detect lvd with external input block diagram

Tài liệu Building a Better Hospital with Low-Voltage Convergence pdf

Ngày tải lên : 21/12/2013, 07:17

... personnel to communicate effectively without losing signal Over million feet of TrueNet Category 5e provides over 20,000 connections to support all the low- voltage systems throughout the facility, ... TrueNet cable, with it’s smaller diameter, really came into play “The number of fire-stopping paths installed by the electrical contractor was insufficient to accommodate the amount of low- voltage cabling ... TrueNet cable allowed us to run 96 cables through the fire-stopping pathway as opposed to 67 with the competitor’s cable We ended up having to add a considerable amount of pathways, but without the...

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DUAL LOW VOLTAGE POWER AMPLIFIER

Ngày tải lên : 12/09/2013, 10:00

... TDA2822 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS OUTPUT 1 Vcc OUTPUT INPUT GND NF NF INPUT BLOCK DIAGRAM VCC INPUT1 NP1 INPUT2 NP2 + OUTPUT1 + OUTPUT2 GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw ... SCHEMATIC DIAGRAM Vcc I source CONTROL Vcc Vcc OUT OUT NF INPUT INPUT NF GND RIPPLE REJECTION (dB) QUIESCENT CURRENT (mA) TYPICAL CHARACTERISTICS 10 C1=C2 =22 µF 20 30 C1=C2 =100 µF 40 12 16 SUPPLY VOLTAGE ... CIRCUIT STEREO VCC C3 100 µF INPUT1 C4 470 µF R1 10kΩ C6 0.1 µF C1 100 µF INPUT2 C5 470 µF R2 10kΩ RL R3 4.7Ω C7 0.1 µF C2 100 µF RL R4 4.7Ω BRIDGE VCC C5 100 µF INPUT1 R1 10kΩ C1 10 µF C2 0.1...

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Distribution in low-voltage installations

Ngày tải lên : 28/10/2013, 03:15

... the complete withdrawal of the drawer, allowing fast replacement of a faulty unit without deenergising the rest of the distribution switchboard Fig E31 : Distribution switchboard with disconnectable ... are numbered from to with variations labelled “a” or “b” Each step up (from to 4) is cumulative, i.e a form with a higher number includes the characteristics of forms with lower numbers The standard ... 1,000 A) v Small sites (workshops with machine-tools, textile factories with small machines, supermarkets with small loads) The short-circuit and current levels are lower (respectively 10 to 40 kA...

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Tài liệu Module 7: Integrating with External Systems pdf

Ngày tải lên : 10/12/2013, 16:16

... Integrating with External Systems 41 Filtering Traffic with ISA Server By using ISA Server, you can configure the following filters to specify the type of traffic that you wish to allow through ... all subsequent interaction with that application 12 Module 7: Integrating with External Systems The SOAP Toolkit for Visual Studio 6.0 can be downloaded from the following link: http://msdn.microsoft.com/msdn-files/027/000/242/SOAPTK.exe ... unreadable until it has been decrypted with a key Module 7: Integrating with External Systems 37 Public Key Certificate Server The Public Key Certificate Server allows organizations to issue public-key...

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Tài liệu Ecodial V3.38 Low-voltage electrical installation design software Fupact and variable speed drive ppt

Ngày tải lên : 12/12/2013, 13:15

... standard allows it v The maximum voltage drop authorised by the IEC60364 standard is for information only In Ecodial V3.38, the users are allowed to enter their own value However, if the voltage ... Ecodial V3.38 complies with the latest electrical standards, bringing LV installation design software to a new level of performance With Ecodial V3.38, design low the easy way Personalise ... cable cross-sections with corresponding sizing criteria b protective devices, Isc max (1, or 3-phase), Isc (1 or 2-phase), earth fault current, R, X, trip unit settings b voltage drops, earth-fault...

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iec 60092-352 choice & installation of cables for low voltage power systems

Ngày tải lên : 25/12/2013, 10:38

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iec 60269-2-1 low-voltage fuses - supplemetary requirements for fuses for use by authorized perso

Ngày tải lên : 25/12/2013, 10:47

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iec 60269-1 low-voltage fuses - general requirements

Ngày tải lên : 25/12/2013, 10:53

... transient voltage exists (see 2.3.23.1) followed by a second one during which only the power frequency or d.c recovery voltage (see 2.3.23.2) exists 2.3.23.1 transient recovery voltage recovery voltage ... recovery voltage recovery voltage after the transient voltage phenomena have subsided NOTE - The power frequency or d.c recovery voltage may be referred to as a percentage of the rated voltage ... usually stated for low- voltage fuses are: voltage, current, breaking capacity, power dissipation and acceptance and frequency, where applicable In the case of a.C., rated voltage and rated current...

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iec 60269-2 low-voltage fuses - supplementary requirements for fuses for use by authorized person

Ngày tải lên : 25/12/2013, 10:53

... amendment has been prepared by subcommittee 32B: Low- voltage fuses, of IEC technical committee 32: Fuses The text of this amendment is based on the following documents: FDIS Report on voting 32Bl384lFD ... amendment has been prepared by sub-committee 328: Low- voltage fuses, technical committee 32: Fuses o f IEC The text of this amendment is based on the following documents: I FDIC I Report on voting ... EXPLANATORY NOTE In view of the fact that this standard should be read together with IEC Publication 269-1: Low- voltage fuses, Part 1: General Requirements, the numbering of its clauses and sub-clauses...

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iec 60269-4-1 low-voltage fuses - supplementary requirements for fuse-links for the protection of

Ngày tải lên : 25/12/2013, 10:54

... devices according to the following sections shall comply with all subclauses of • IEC 60269-1: Low- voltage fuses – Part 1: General requirements; and • IEC 60269-4: Low- voltage fuses – Part 4: Supplementary ... 60269-4-1 has been prepared by subcommittee 32B: Low- voltage fuses, of IEC technical committee 32: Fuses The text of this standard is based on the following documents: FDIS Report on voting 32B/387/FDIS ... Section IA – Fuse-links with bolted connections, type A 1.1 Scope The following supplementary requirements apply to fuse-links having bolted connections, whose dimensions comply with the requirements...

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iec 60269-4 low-voltage fuses - supplementary requirements for fuse-links for the protection of s

Ngày tải lên : 25/12/2013, 10:55

... Page 15 5.2 Rated voltage Replace the existing subclause by the following: For rated a.c voltages up to 690 V and d.c voltages up to 750 V, IEC 60269-1 applies; for higher voltages, the values ... operation in service 3.4 Voltage 3.4.1 Rated voltage For a.c., the rated voltage of a fuse-link is related to the applied voltage; it is based on the r.m.svalue of a sinusoidal a.c voltage It is further ... ms The voltage parameters shall include at least 100% and 50% of rated voltage It is permitted to determine the operating 12t characteristics at lower voltages from tests in accordance with Table...

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iec 60439-1 low-voltage switchgear and controlgear assemblies - type-tested and partially ty

Ngày tải lên : 25/12/2013, 11:00

... 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 ... contact with cable covering 165 Table G.1 Correspondence between the nominal voltage of the supply system and the equipment rated impulse withstand voltage, in the case of overvoltage ... manufacturer 2.1.1.1 type-tested low- voltage switchgear and controlgear assembly (TTA) a low- voltage switchgear and controlgear ASSEMBLY conforming to an established type or system without deviations likely...

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iec 60439-2 low-voltage switchgear and controlgear assemblies - particular requirements for busba

Ngày tải lên : 25/12/2013, 11:05

... following standards: IEC 60269 (all parts), Low- voltage fuses IEC 60332-3:1992, Tests on electric cables under fire conditions - Part Tests on bunched : wires or cables IEC 60439-1 1999 ,Low- voltage ... the highest rated insulation voltage of any parts of the system stated by the manufacturer NOTE A double insulation system between low- voltage circuits and extra -low- voltage communication circuits ... having passed the glow-wire test if - there is no visible flame and no sustained glowing; - flames and glowing of the specimen extinguish within 30 s after the removal of the glow wire There shall...

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iec 60439-3 low-voltage switchgear and controlgear assemblies - particular requirements for iow-v

Ngày tải lên : 25/12/2013, 11:06

... considered to have withstood the glow-wire test: - if there is no visible flame and no sustained glowing, or if flames or glowing of the specimen extinguish within 30 s after removal of the glowwire There ... barriers may be omitted if circuits at lower voltages are wired in cables insulated according to the phase-to-earth voltage of the main circuits Safety extra -low voltage circuit conductors shall be ... corresponding clauses in IEC 60439-3 - First edition (1990): Low voltage switchgear and controlgear assemblies - Part 3: Particular requirements for low- voltage switchgear and controlgear assemblies intended...

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iec 60439-4 low-voltage switchgear and controlgear assemblies - particular requirements for assem

Ngày tải lên : 25/12/2013, 11:07

... consist of an incoming unit and may include a low voltage/ extra -low voltage (LV/ELV) transformer unit and, possibly, one or more low voltage /low voltage (LV/LV) transformer units 9.4.2 Incoming ... following types: a) either with rated operational voltages not less than the nominal supply voltages and rated frequencies in accordance with the national regulations; b) or lower operational voltages ... primary voltage and the nominal secondary voltage must be within the limits specified in IEC 60439-1 for this standard to be applicable Definitions The definitions of Part apply with the following...

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iec 60439-5 low-voltage switchgear and controlgear assemblies - particular requirements for assem

Ngày tải lên : 25/12/2013, 11:08

... load withstand 8.2.9.1.1 shock load withstand 8.2.9.1.2 torsional stress withstand 8.2.9.1.3 Torsion withstand - type test 12.2 impact strength 8.2.9.2 Verification of: 12.2.1 impact force withstand ... samples of metal parts with protective coating of synthetic material shall then be subjected to the following test 8.2.1 1.3 External parts manufactured from solid metal, with or without metallic or ... cycle) IEC 60238:1991, Edison screw lampholders IEC 60269-1:1986, Low- voltage fuses - Part 7: General requirements IEC 60439-1:1992, Low- voltage switchgear and controlgear assemblies and partially...

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Tài liệu Low Voltage Wiring - Dây điện áp thấp docx

Ngày tải lên : 26/01/2014, 08:20

... Lockswitches 1.00 1.50 2.00 2.50 Low- voltage cable, 2/c (per 1000 ft) 8.50 12.00 14.00 16.00 Low- voltage cable, 3/c (per 1000 ft) 9.50 14.00 16.00 18.00 Low- voltage cable, 4/c (per 1000 ft) 10.50 ... Keep your hours low Figure 1.4 Sales expansion plan Contact existing clients, architects, and general contractors ➣ Follow up on leads within day ➣ Develop a tickler system for follow up ➣ Review ... highly skilled with construction documents, their knowledge should keep your legal fees lower than those from counsel with a general practice Also remember, that your staff can lower the time...

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Electrical Equipment (implementing the Low Voltage Directive) ppt

Ngày tải lên : 17/03/2014, 14:20

... State within its national jurisdiction; The Regulations replace, with certain savings, the Low Voltage Electrical Equipment (Safety) Regulations 1989 which implemented the original Low Voltage ... the laws of Member States relating to electrical equipment designed for use within certain voltage limits The Low Voltage Directive is an old approach Directive and as such did not provide for ... mailto:customer.services@tso.co.uk Low Voltage Directive - the law in brief BACKGROUND On 19 February 1973, the Council of Ministers adopted Council Directive 73/23/EEC (“the Low Voltage Directive”) on the...

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Báo cáo khoa học: "Towards an Adaptive Communication Aid with Text Input from Ambiguous Keyboards" pptx

Ngày tải lên : 17/03/2014, 22:20

... like mail, and a development environment with extensive documentation are at the programmer's fingertips All components in the communication aid dealing with input/ output have been implemented as ... memorize the input position The adaptive UKO - II system Assistive devices have to respond to dramatically varying needs (Edwards, 1995) Therefore, in order to be useful, they should allow adaptation ... Attention to the display is required only after the word has been typed A keyboard with fewer and larger keys may allow easier direct selection for users who otherwise may depend on scanning An obstacle...

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Relationship with External Auditor: Audit, Audit-Related, Tax and Other Non-Audit Services potx

Ngày tải lên : 29/03/2014, 18:20

... below q Audit Services This category includes audit services rendered in connection with the audit of the Company’s consolidated financial statements Such services would include assistance with ... assistance with statutory reporting q Tax Services The tax category includes all tax compliance and tax-planning services, e xcept for those services that are provided in connection with the audit ... and profits, tax basis, etc.), due diligence in connection with merger and acquisition transactions, acquisition planning, assistance with tax audits, international tax planning and compliance...

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