SABS 1574 (2001)
... distances and clearances smaller than those specified in table 4.1 are allowed provided the requirements of clause 8.15 are met if these creepage distances and clearances are short-circuited in turn. 4.1.4.3 Distances through insulation The distance through insulation between metal parts for working ...
... distances and clearances smaller than those specified in table 4.1 are allowed provided the requirements of clause 8.15 are met if these creepage distances and clearances are short-circuited in turn. 4.1.4.3 Distances through insulation The distance through insulation between metal parts for working ...
Data Center Power and Cooling White Paper
... Typically, data center HVAC units are controlled based on return air temperature. Setting the HVAC unit return air temperatures to match the ASHRAE requirements will result in very low server inlet temperatures, because HVAC return temperatures are closer to server exhaust temperatures than inlet te ...
... Typically, data center HVAC units are controlled based on return air temperature. Setting the HVAC unit return air temperatures to match the ASHRAE requirements will result in very low server inlet temperatures, because HVAC return temperatures are closer to server exhaust temperatures than inlet te ...
Liebert Series 610 UPS Installation Manual - 300-450kVA, 60Hz, Three Phase Multi-Module
... In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or those approved for use in fighting electrical fires. Extreme caution is required when performing maintenance. Be constantly aware that the UPS system contains high DC as well as AC voltages. Check for volta ...
... In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or those approved for use in fighting electrical fires. Extreme caution is required when performing maintenance. Be constantly aware that the UPS system contains high DC as well as AC voltages. Check for volta ...
SM897624 - Marine Warehouse
... panels or other Sidepower control devices spesifically designed for this with a seperate fifth control lead for the automatic main switch. • It is designed to fit on a shelf or a wall and must be fitted so that it keeps dry at all times. • The automatic main switch can NOT be fitted in spaces requir ...
... panels or other Sidepower control devices spesifically designed for this with a seperate fifth control lead for the automatic main switch. • It is designed to fit on a shelf or a wall and must be fitted so that it keeps dry at all times. • The automatic main switch can NOT be fitted in spaces requir ...
Mod 3 – Networking Media
... Explain the basics of fiber-optic cable. Describe how fibers can guide light for long distances. Describe multimode and single-mode fiber. Describe how fiber is installed. Describe the type of connectors and equipment used with fiber-optic cable. Explain how fiber is tested to ensure that it will fu ...
... Explain the basics of fiber-optic cable. Describe how fibers can guide light for long distances. Describe multimode and single-mode fiber. Describe how fiber is installed. Describe the type of connectors and equipment used with fiber-optic cable. Explain how fiber is tested to ensure that it will fu ...
General Maintenance Manual
... Remove brown wire from field terminal on alternator. Place alligator clips on the B+ terminal and the field terminal of the alternator. Run on machine for 10-15 seconds. If full resistance is achieved during this time, your alternator has correct current flow. It is accepting current (field) and pro ...
... Remove brown wire from field terminal on alternator. Place alligator clips on the B+ terminal and the field terminal of the alternator. Run on machine for 10-15 seconds. If full resistance is achieved during this time, your alternator has correct current flow. It is accepting current (field) and pro ...
The Electricity at Work Regulations 1989. Guidance on
... energy sources in that system. In the case of transformers, even though there may be galvanic separation between the various windings of the transformers, where the energy is transmitted through these from one part of the electrical system to another, the transformer and all of its windings are part ...
... energy sources in that system. In the case of transformers, even though there may be galvanic separation between the various windings of the transformers, where the energy is transmitted through these from one part of the electrical system to another, the transformer and all of its windings are part ...
MA3620602066
... into the tag by an RFID printer, the tag contains a 96bit string of data. The first eight bits are a header which identifies the version of the protocol. The next 28 bits identify the organization that manages the data for this tag; the organization number is assigned by the EPC Global consortium. T ...
... into the tag by an RFID printer, the tag contains a 96bit string of data. The first eight bits are a header which identifies the version of the protocol. The next 28 bits identify the organization that manages the data for this tag; the organization number is assigned by the EPC Global consortium. T ...
Design_Hardware - Network and Systems Laboratory
... These two are widely used in high end processor. They allow more pin-out from a single package. We seldom use ICs in these package, it is too difficult to solder by hand ...
... These two are widely used in high end processor. They allow more pin-out from a single package. We seldom use ICs in these package, it is too difficult to solder by hand ...
WECC-0113 Posting 1 FAC-011-2 SOL Method for the Ops Horizon
... sequence modeling and do not have the ability to simulate a simultaneous ground fault on different phases of two different circuits. Further, no reliability benefit is obtained by simulating a single phaseto-ground fault on two different phases of two transmission circuits nor was the RS able to fin ...
... sequence modeling and do not have the ability to simulate a simultaneous ground fault on different phases of two different circuits. Further, no reliability benefit is obtained by simulating a single phaseto-ground fault on two different phases of two transmission circuits nor was the RS able to fin ...
Chapter 5 Noise n Trans_lines
... Noise figure, NF (noise factor in dB) is a frequently used measure of an amplifier's goodness, or its departure from the ideal. Noise temperature, Te is a means for specifying noise in terms of an equivalent temperature. Thermal noise – In any object with electrical resistance the thermal fluctuatio ...
... Noise figure, NF (noise factor in dB) is a frequently used measure of an amplifier's goodness, or its departure from the ideal. Noise temperature, Te is a means for specifying noise in terms of an equivalent temperature. Thermal noise – In any object with electrical resistance the thermal fluctuatio ...
EMC in Drive Engineering - SEW
... A magnetic field B builds up around every conductor carrying a current, this field being proportional to the current IL in the conductor. If this magnetic field passes through a conductor loop perpendicular to it, it induces a voltage in this loop (transformer principle). The voltage is proportional ...
... A magnetic field B builds up around every conductor carrying a current, this field being proportional to the current IL in the conductor. If this magnetic field passes through a conductor loop perpendicular to it, it induces a voltage in this loop (transformer principle). The voltage is proportional ...
lecture1424265031
... conductivity, tensile strength, weight etc., aluminium has an edge over copper. Therefore, it is being widely used as a conductor material. It is particularly profitable to use aluminium for heavy-current transmission where the conductor size is large and its cost forms a major proportion of the tot ...
... conductivity, tensile strength, weight etc., aluminium has an edge over copper. Therefore, it is being widely used as a conductor material. It is particularly profitable to use aluminium for heavy-current transmission where the conductor size is large and its cost forms a major proportion of the tot ...
Site Report - Single Network Analysis
... the [Site Name] site. Ensure that you complete all questions. Quite often a C-Bus network that is not functioning as expected, usually relates back to a basic C-Bus system requirement that has been over looked. These system requirements could be anything from insufficient C-Bus voltages to poor conn ...
... the [Site Name] site. Ensure that you complete all questions. Quite often a C-Bus network that is not functioning as expected, usually relates back to a basic C-Bus system requirement that has been over looked. These system requirements could be anything from insufficient C-Bus voltages to poor conn ...
UFC 3-540-01 Engine-Driven Generator Systems for
... On the outside of an enclosure that contains the generator system. ...
... On the outside of an enclosure that contains the generator system. ...
UFGS 26 12 21 Single-Phase Pad-Mounted Transformers
... Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined in IEEE Stds Dictionary. ...
... Unless otherwise specified or indicated, electrical and electronics terms used in these specifications, and on the drawings, are as defined in IEEE Stds Dictionary. ...
specification submittal
... withstand voltage surges of up to 6000V and current surges of up to 200A without damage. m. Dimmers shall be designed to reduce interference with radio, audio, and video equipment. n. Controls shall incorporate power-failure memory. Should power be interrupted and subsequently returned, the lights o ...
... withstand voltage surges of up to 6000V and current surges of up to 200A without damage. m. Dimmers shall be designed to reduce interference with radio, audio, and video equipment. n. Controls shall incorporate power-failure memory. Should power be interrupted and subsequently returned, the lights o ...
Press Information
... model range, it has been accomplished to create a more compact Unimog. The wheelbase of the Unimog U 216 and the U 218 is with 2800 mm by 200 mm shorter than the wheelbase of the U 318; furthermore, they are about 50 mm narrower. Thus they achieve a turning circle of 12.6 m – a definite passenger’s ...
... model range, it has been accomplished to create a more compact Unimog. The wheelbase of the Unimog U 216 and the U 218 is with 2800 mm by 200 mm shorter than the wheelbase of the U 318; furthermore, they are about 50 mm narrower. Thus they achieve a turning circle of 12.6 m – a definite passenger’s ...
Telecommunications engineering
Telecommunications engineering, or telecom engineering, is an engineering discipline that brings together electrical engineering with computer science to enhance telecommunication systems. The work ranges from basic circuit design to strategic mass developments. A telecommunication engineer is responsible for designing and overseeing the installation of telecommunications equipment and facilities, such as complex electronic switching systems, copper wire telephone facilities, and fiber optics. Telecommunication engineering also overlaps heavily with broadcast engineering.Telecommunication is a diverse field of engineering which is connected to electronics, civil, structural, and electrical engineering. Ultimately, telecom engineers are responsible for providing the method for customers to have telephone and high-speed data services. It helps people who are closely working in political and social fields, as well accounting and project management.Telecom engineers use a variety of equipment and transport media available from a multitude of manufacturers to design the telecom network infrastructure. The most common media used by wired telecommunications companies today are copper wires, coaxial cable, and fiber optics. Telecommunications engineers use their technical expertise to also provide a range of services and engineering solutions revolving around wireless mode of communication and other information transfer, such as wireless telephony services, radio and satellite communications, internet and broadband technologies.Telecom engineers are often expected, as most engineers are, to provide the best solution possible for the lowest cost to the company. Most of the work is carried out on a project basis with tight deadlines and well-defined milestones for the delivery of project objectives. Telecommunication engineers are involved across all aspects of service delivery, from carrying out feasibility exercises and determining connectivity to preparing detailed, technical and operational documentation. This often leads to creative solutions to problems that often would have been designed differently without the budget constraints dictated by modern society. In the earlier days of the telecom industry, massive amounts of cable were placed that were never used or have been replaced by modern technology such as fiber optic cable and digital multiplexing techniques.Telecom engineers are also responsible for overseeing the companies' records of equipment and facility assets. Their work directly impacts assigning appropriate accounting codes for taxes and maintenance purposes, budgeting and overseeing projects.