This document discusses electrical safety standards. It covers common electrical hazards like electric shock, burns, falls and explosions. It discusses identifying hazards, safe work practices, personal protective equipment, lockout/tagout procedures, training requirements and safety for working on energized equipment. The standards specify requirements for electrical installations, utilization systems, wiring design, grounding, receptacles, flexible cords, boxes/fittings, damp locations and portable equipment handling. Personnel working with electricity must be trained on safety practices related to their job assignments.
700 Series Interface E Elastimold Cable Connectors and Bushings connect and terminate HV cables to Interface E bushings on switchgear and transformers. Elastimold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F. Elastimold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables. 700 Series Interface E, Elastimold Bushings * Bushing Voltage Range 33kV-36kV * Bushing Current Rating 800Amps & 1250Amps * Bushing Type 5/8" Bolted Aluminium Insert Elastimold separable elbow connectors are high voltage cable terminations used to connect polymeric (XLPE or EPR insulated) power cables to HV equipment including transformers, switchgear, capacitors and motors. 700 Series Connectors - 750LR Tee Connectors & 775LR Tee Connectors 800-1250Amps 35-630sqmm Slip on cable connectors - quick to install to high voltage switchgear and transformers (oil, air and gas insulated) Touchproof cable terminations - made from conductive EPDM rubber, fully screened HV termination for safety One part cable termination - built-in stress relief, insulation and outer semi-conductive layers Maintenance friendly - readily disconnectable cable connector for high voltage maintenance work Compact cable connectors - space-saving HV cable terminations for SF6 gas insulated switchgear (GIS) EPDM rubber cable connectors - resistant to ozone, corona, chemicals, water and atmospheric pollutants Flexibility - Elastimold cable connectors are disconnectable and re-useable. Re-use of the Elastimold high voltage cable connector permits site re-location of HV electrical equipment without requiring cable re-termination. HV High Voltage Cable Connectors, Specification - Elastimold dead-break separable cable connectors suit all international high voltage bushing interfaces for the termination of HV cable into switchgear, transformers and motors. Elastimold cable connectors terminate high voltage power cables (typically 11kV, 15kV, 24kV, 33kV, 36kV up to 52kV) into SF6 GIS gas insulated switchgear including Schneider, ABB, Areva and Siemens. Elastimold cable connectors meet the requirements of ANSI/IEEE 386 & 404 and CENELEC EN50180 & EN50181 for high voltage "dead-break" cable connection, i..e connectors installed and terminated onto un-energised high voltage power cable. US specification "load-break" cable connectors for high voltage energised cable termination are available. High Voltage Cable Connectors - Elastimold cable connectors (elbow and straight types) are specified to terminate XLPE or EPR insulated high voltage power cables with copper tape or copper wire screens up to 52kV. Elastimold cable connectors are available to suit and terminate lead covered HV cables for hydro-carbon industries (oil, gas, petrochemicals) with ATEX certification for hazardous area Zones 1 and Zones 2.
Air Circuit Breaker BT3 Fuji
Beeteco.com là trang mua sắm trực tuyến thiết bị điện - Tự động hóa uy tín tại Việt Nam.
Chuyên cung cấp các thiết bị: Đèn báo nút nhấn, Relay, Timer, Contactor, MCCB ELCB, Biến tần, Van, Thiết bị cảm biến, phụ kiện tủ điện, .... Từ các thương hiệu hàng đầu trên thế giới.
www.beeteco.com @ Công ty TNHH TM KT ASTER
Số 7 Đại Lộ Độc Lập, KCN Sóng Thần 1, P. Dĩ An, Tx. Dĩ An, Bình Dương
www.facebook.com/beeteco
Tel: 0650 3617 012
M pact new air circuit breaker 400-4000 atwinkleerai
Electrical air circuit breaker is a switching device which can be operated manually as well as automatically for controlling and protection of electrical power system respectively. Air circuit breaker, is the kind of circuit breaker which operates in air at atmospheric pressure.
200 Series Interface A Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface A bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
700 Series Interface E Elastimold Cable Connectors and Bushings connect and terminate HV cables to Interface E bushings on switchgear and transformers. Elastimold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F. Elastimold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables. 700 Series Interface E, Elastimold Bushings * Bushing Voltage Range 33kV-36kV * Bushing Current Rating 800Amps & 1250Amps * Bushing Type 5/8" Bolted Aluminium Insert Elastimold separable elbow connectors are high voltage cable terminations used to connect polymeric (XLPE or EPR insulated) power cables to HV equipment including transformers, switchgear, capacitors and motors. 700 Series Connectors - 750LR Tee Connectors & 775LR Tee Connectors 800-1250Amps 35-630sqmm Slip on cable connectors - quick to install to high voltage switchgear and transformers (oil, air and gas insulated) Touchproof cable terminations - made from conductive EPDM rubber, fully screened HV termination for safety One part cable termination - built-in stress relief, insulation and outer semi-conductive layers Maintenance friendly - readily disconnectable cable connector for high voltage maintenance work Compact cable connectors - space-saving HV cable terminations for SF6 gas insulated switchgear (GIS) EPDM rubber cable connectors - resistant to ozone, corona, chemicals, water and atmospheric pollutants Flexibility - Elastimold cable connectors are disconnectable and re-useable. Re-use of the Elastimold high voltage cable connector permits site re-location of HV electrical equipment without requiring cable re-termination. HV High Voltage Cable Connectors, Specification - Elastimold dead-break separable cable connectors suit all international high voltage bushing interfaces for the termination of HV cable into switchgear, transformers and motors. Elastimold cable connectors terminate high voltage power cables (typically 11kV, 15kV, 24kV, 33kV, 36kV up to 52kV) into SF6 GIS gas insulated switchgear including Schneider, ABB, Areva and Siemens. Elastimold cable connectors meet the requirements of ANSI/IEEE 386 & 404 and CENELEC EN50180 & EN50181 for high voltage "dead-break" cable connection, i..e connectors installed and terminated onto un-energised high voltage power cable. US specification "load-break" cable connectors for high voltage energised cable termination are available. High Voltage Cable Connectors - Elastimold cable connectors (elbow and straight types) are specified to terminate XLPE or EPR insulated high voltage power cables with copper tape or copper wire screens up to 52kV. Elastimold cable connectors are available to suit and terminate lead covered HV cables for hydro-carbon industries (oil, gas, petrochemicals) with ATEX certification for hazardous area Zones 1 and Zones 2.
Air Circuit Breaker BT3 Fuji
Beeteco.com là trang mua sắm trực tuyến thiết bị điện - Tự động hóa uy tín tại Việt Nam.
Chuyên cung cấp các thiết bị: Đèn báo nút nhấn, Relay, Timer, Contactor, MCCB ELCB, Biến tần, Van, Thiết bị cảm biến, phụ kiện tủ điện, .... Từ các thương hiệu hàng đầu trên thế giới.
www.beeteco.com @ Công ty TNHH TM KT ASTER
Số 7 Đại Lộ Độc Lập, KCN Sóng Thần 1, P. Dĩ An, Tx. Dĩ An, Bình Dương
www.facebook.com/beeteco
Tel: 0650 3617 012
M pact new air circuit breaker 400-4000 atwinkleerai
Electrical air circuit breaker is a switching device which can be operated manually as well as automatically for controlling and protection of electrical power system respectively. Air circuit breaker, is the kind of circuit breaker which operates in air at atmospheric pressure.
200 Series Interface A Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface A bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
400 Series Interface B Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface B bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
Catalog thiết bị đóng cắt Fuji Electric - Air Circuit Breakers, 1600 to 6300A BT3 Series
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Medium Voltage Fuses
E-Rated Fuses for Transformers and Feeders
within this range. It is possible for the fuse to be exposed to
an overcurrent lower than the value given by the one hour
criteria. In that case, a different overcurrent protection device
would be required to interrupt the overcurrent.
3. Back-up – defined by ANSI C37.40 as “a fuse capable of
interrupting all currents from the maximum interrupting rating
current down to the minimum interrupting current.”
The minimum interrupting current is the lowest current that
the fuse will be able to clear properly. This creates a need to
place a low current interrupting device, such as motor
overloads, in series with the back-up rated fuse.
E- and R-Rated Fuses
In North America, current limiting fuses typically fall into the
category of E-Rated fuses and R-Rated fuses. Bussmann
also offers a wide range of current limiting fuses designed to
BS, DIN and IEC standards.
E-Rated fuses are used to protect feeder circuits, power
transformers and potential transformers. E-Rated fuses have
defined current response times specified by ANSI C37.46.
E-Rated fuses 100A and below must melt in 300sec at an
rms current within the range of 200% to 240% of the
continuous current rating. E-Rated fuses above 100A must
melt in 600sec at an rms current within the range of 240% to
264% of the continuous current rating of the fuse.
Bussmann offers a wide variety of full range and general
purpose E-Rated fuses from 2.4kV up to 38kV.
R-Rated fuses are back-up fuses that provide short-circuit
protection for motor circuits. They are applied with MV motor
starters which provide the overload protection for the circuit.
R-Rated fuses also have defined current response times
specified by ANSI C37.46. R-Rated fuses will melt in a range
of 15 – 35sec at a current equal to 100 times the “R” rating.
Bussmann offers 2.4kV, 5.08kV, 7.2kV and 8.3kV R-Rated
fuses for motor circuit protection.
Nexans Euromold Connectors & Bushing Interfaces
Euromold Connectors 200 Series Interface Type A Bushing
* Connector Type : 7.9mm Plug-In Pin Contact
* Voltage Range : 11/12kV-24kV
* Current Rating : 250amps
* Specification : CENELEC EN50180 & EN50181
Euromold 158LR Elbow Connectors are used with 200 Series Interface A Bushing.
Nexans Euromold HV high voltage bushings are suitable for use in oil-insulated high voltage electrical equipment up to 33kV- this includes oil-insulated HV bushings for high voltage transformers, motors, switchgear and capacitors. Nexans Euromold bushings are epoxy insulated in accordance with CENELEC EN 50181. Nexans Euromold plug-in bushings 750S1, 775S1, 775T1 meet the requirements of ANSI/IEEE 386 with 800amp and 1250amp current ratings. Nexans HV bushings are suitable for 5/8" threading systems.
Nexans Euromold Oil-Insulated Epoxy HV High Voltage Bushings
6/10 (12kV)
6.35/11 (12kV)
8.7/15 (17.5kV)
12/20 (24kV)
12.7/22 (24kV)
18/33 (36kV)
Elastimold - HV High Voltage Joints, Terminations, Loadbreak & Deadbreak Connectors.
Load Break Elbows
A load break elbow when used with a hot stick can be connected or disconnected at high voltage under load, but can only be used with up to a 250kcmil cable. At 100% insulation level, a 250kcmil is good for 345A in underground duct, so you would be de-rating your system by using a 200A elbow with a 250kcmil cable, but they are still widely used due to the flexibility given to the high voltage distribution system at the equipment. Think about it…if you had a critical application where power disruptions were extremely costly and maintenance was required on up-stream equipment in, let’s say a non critical area, this product would be great. You could disconnect the load without disturbing the critical portions, perform the maintenance and then reconnect it. Just make sure to take safety precautions, making and breaking electrical connections under load is very dangerous. The load break elbow is typically not used in man-holes, because it does not allow expansion like the dead break elbow. The construction of the load break elbow does not allow it to be connected to other elbows, but the dead break does.
Dead Break Elbows
A dead break or “hammerhead” elbow can only be disconnected when not under load, this is because you need to actually unscrew a pin to detach it. It would be pretty tough to unscrew the pin with a hot stick and the arc from the disconnected load, if under load, would be pretty substantial. A dead break elbow allows an increased current rating (up to 600A) and can be used on basically all cable types. At 100% insulation level a 750kcmil cable is rated 610A in underground duct. When would you use a 750kcmil? In most non-utility cases you would design or install sets of 500kcmil or smaller if you needed more than one 500kcmil could handle. Even from a 1200A breaker, two sets of 500kcmil per phase would be sufficient for distribution (about 1000A), if the load was even that high. Most of the time you set the relays down to the actual load in order to limit the copper used. A dead break when used in man-holes for splicing cables allows the flexibility of connecting more than two cables together as well as future expansion if required. Say another building was added that needed power, you could just connect that building to the existing array of dead break elbows. This also works great when temporary power is needed for construction or even if the circus is in town and they need medium voltage (it happens!). They can pick up power from the man-hole with the dead break elbows or from a piece of equipment with dead break elbows. I’ve heard that ships are now starting to use medium voltage shore power, I wonder what kind of connections they use.
Nexans Euromold 400 series screened separable connectors are EPDM pre-moulded, high voltage cable terminations for 6.6kV, 11kV, 15kV, 24kV and 33kV electrical equipment including switchgear, transformers and motors.
Nexans Euromold separable elbow connectors are designed to terminate high voltage polymeric (XLPE EPR) screened (copper wire or copper tape) cables to CENELEC Interface Type B (400amp) bushings with 14mm plug-in pins, up to 33kV.
Nexans Euromold 400 series separable connectors include Nexans Euromold elbow connectors, Nexans Euromold tee connectors, Nexans Euromold straight plug connectors, Nexans Euromold bushings (air, oil and gas insulated switchgear) and Nexans Euromold surge arresters to protect electrical equipment up to 33kV.
Catalog thiết bị đóng cắt Fuji Electric - Air Circuit Breakers BT3 Series
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Catalog thiết bị đóng cắt Fuji Electric - 06 - MCCB & ACB
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Underground Cable Accessories
Elastimold® offers the industry's most complete package for managing underground cable connections.
Broad Product Range..
Elastimold accessories, available from 5kV to 138kV, connect, ground, splice, terminate and protect underground cable.
Elastimold Innovation
Elastimold’s long, innovative history includes pioneering such products as extended and repair elbows, jacket seal elbows, and shrink-fit joints.
900 Series Interface F Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface F bushings on switchgear and transformers up to 42kV. Nexans 944TB Tee Connectors provide high voltage cable terminations using separable tee shape connectors :
Nexans 944TB/G - 12kV 2500Amp 70-80sqmm Conductors
Nexans K944TB/G - 24kV 2500Amp 16-800sqmm Conductors
Nexans M944TB/G - 36kV 2500Amp 35-800sqmm Conductors
Nexans P944TB/G - 42kV 1250Amp 50-800sqmm Conductors
Nexans Euromold 400 series screened separable connectors are EPDM pre-moulded,high voltage cable terminations for 6.6kV, 11kV, 15kV, 24kV and 33kV electrical equipment including switchgear, transformers and motors.
Nexans Euromold 400 series separable connectors include Euromold elbow connectors, Euromold tee connectors, Euromold bushings (oil insulated) and Euromold surge arresters to protect electrical equipment up to 33kV.
Nexans Euromold Separable Elbow Connectors 400 Series, 400TB 440TB Features :
Connector for terminating high voltage polymeric (XLPE EPR) cables, 11-33kV
Plug in bolted tee connectors with current rating 630amps and 1250amps
Conductive EPDM jacket provides a touch safe screened termination
Suits copper wire and copper tape screened cable, 35-300sqmm
Type C 630A interface to CENELEC EN50180
T&D UK with the support of Nexans provide installation training and certification for experienced high voltage cable jointers up to 33kV.
Euromold Connectors 400 Series Interface Type B Bushing
* Connector Type : 14mm Plug-In Pin Contact
* Voltage Range : 11/12kV-33/36kV
* Current Rating : 400amps
* Specification : CENELEC EN50180 & EN50181
Euromold 400LR Elbow Connectors are used with 400 Series Interface B Bushing.
400 Series Interface C Compact Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface C bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
Prysmian Group/Draka is world leader in the energy and telecom cables and systems industry. With sales ofsome €8 billion in 2012, more than 20,000 employees across 50 countries and 91 plants , the Group is strongly positioned in high-tech markets and offers the widest range of products, services, technologies and know-how
Prysmian Cables & Systems is the UK's largest domestic manufacturer of energy and telecommunications cables and systems to service home and export markets.
This is the draft electrical presentation that I use in the OSHA 10 hour classes. I put it up here to give the reader an idea what I cover in the one hour.
I want to thank John Gryzwacz and Bob Lomastro for helping me with this presentation. They are the best electrical trainers in the country. Both teach the OSHA 3095 class at the OSHA ed centers.
Bob is at www.safetywizard.com
John is www.oshaprofessor.com
These presentation are always in continual improvement so I put a date on the draft. There are many earlier versions of this.
400 Series Interface B Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface B bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
Catalog thiết bị đóng cắt Fuji Electric - Air Circuit Breakers, 1600 to 6300A BT3 Series
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Medium Voltage Fuses
E-Rated Fuses for Transformers and Feeders
within this range. It is possible for the fuse to be exposed to
an overcurrent lower than the value given by the one hour
criteria. In that case, a different overcurrent protection device
would be required to interrupt the overcurrent.
3. Back-up – defined by ANSI C37.40 as “a fuse capable of
interrupting all currents from the maximum interrupting rating
current down to the minimum interrupting current.”
The minimum interrupting current is the lowest current that
the fuse will be able to clear properly. This creates a need to
place a low current interrupting device, such as motor
overloads, in series with the back-up rated fuse.
E- and R-Rated Fuses
In North America, current limiting fuses typically fall into the
category of E-Rated fuses and R-Rated fuses. Bussmann
also offers a wide range of current limiting fuses designed to
BS, DIN and IEC standards.
E-Rated fuses are used to protect feeder circuits, power
transformers and potential transformers. E-Rated fuses have
defined current response times specified by ANSI C37.46.
E-Rated fuses 100A and below must melt in 300sec at an
rms current within the range of 200% to 240% of the
continuous current rating. E-Rated fuses above 100A must
melt in 600sec at an rms current within the range of 240% to
264% of the continuous current rating of the fuse.
Bussmann offers a wide variety of full range and general
purpose E-Rated fuses from 2.4kV up to 38kV.
R-Rated fuses are back-up fuses that provide short-circuit
protection for motor circuits. They are applied with MV motor
starters which provide the overload protection for the circuit.
R-Rated fuses also have defined current response times
specified by ANSI C37.46. R-Rated fuses will melt in a range
of 15 – 35sec at a current equal to 100 times the “R” rating.
Bussmann offers 2.4kV, 5.08kV, 7.2kV and 8.3kV R-Rated
fuses for motor circuit protection.
Nexans Euromold Connectors & Bushing Interfaces
Euromold Connectors 200 Series Interface Type A Bushing
* Connector Type : 7.9mm Plug-In Pin Contact
* Voltage Range : 11/12kV-24kV
* Current Rating : 250amps
* Specification : CENELEC EN50180 & EN50181
Euromold 158LR Elbow Connectors are used with 200 Series Interface A Bushing.
Nexans Euromold HV high voltage bushings are suitable for use in oil-insulated high voltage electrical equipment up to 33kV- this includes oil-insulated HV bushings for high voltage transformers, motors, switchgear and capacitors. Nexans Euromold bushings are epoxy insulated in accordance with CENELEC EN 50181. Nexans Euromold plug-in bushings 750S1, 775S1, 775T1 meet the requirements of ANSI/IEEE 386 with 800amp and 1250amp current ratings. Nexans HV bushings are suitable for 5/8" threading systems.
Nexans Euromold Oil-Insulated Epoxy HV High Voltage Bushings
6/10 (12kV)
6.35/11 (12kV)
8.7/15 (17.5kV)
12/20 (24kV)
12.7/22 (24kV)
18/33 (36kV)
Elastimold - HV High Voltage Joints, Terminations, Loadbreak & Deadbreak Connectors.
Load Break Elbows
A load break elbow when used with a hot stick can be connected or disconnected at high voltage under load, but can only be used with up to a 250kcmil cable. At 100% insulation level, a 250kcmil is good for 345A in underground duct, so you would be de-rating your system by using a 200A elbow with a 250kcmil cable, but they are still widely used due to the flexibility given to the high voltage distribution system at the equipment. Think about it…if you had a critical application where power disruptions were extremely costly and maintenance was required on up-stream equipment in, let’s say a non critical area, this product would be great. You could disconnect the load without disturbing the critical portions, perform the maintenance and then reconnect it. Just make sure to take safety precautions, making and breaking electrical connections under load is very dangerous. The load break elbow is typically not used in man-holes, because it does not allow expansion like the dead break elbow. The construction of the load break elbow does not allow it to be connected to other elbows, but the dead break does.
Dead Break Elbows
A dead break or “hammerhead” elbow can only be disconnected when not under load, this is because you need to actually unscrew a pin to detach it. It would be pretty tough to unscrew the pin with a hot stick and the arc from the disconnected load, if under load, would be pretty substantial. A dead break elbow allows an increased current rating (up to 600A) and can be used on basically all cable types. At 100% insulation level a 750kcmil cable is rated 610A in underground duct. When would you use a 750kcmil? In most non-utility cases you would design or install sets of 500kcmil or smaller if you needed more than one 500kcmil could handle. Even from a 1200A breaker, two sets of 500kcmil per phase would be sufficient for distribution (about 1000A), if the load was even that high. Most of the time you set the relays down to the actual load in order to limit the copper used. A dead break when used in man-holes for splicing cables allows the flexibility of connecting more than two cables together as well as future expansion if required. Say another building was added that needed power, you could just connect that building to the existing array of dead break elbows. This also works great when temporary power is needed for construction or even if the circus is in town and they need medium voltage (it happens!). They can pick up power from the man-hole with the dead break elbows or from a piece of equipment with dead break elbows. I’ve heard that ships are now starting to use medium voltage shore power, I wonder what kind of connections they use.
Nexans Euromold 400 series screened separable connectors are EPDM pre-moulded, high voltage cable terminations for 6.6kV, 11kV, 15kV, 24kV and 33kV electrical equipment including switchgear, transformers and motors.
Nexans Euromold separable elbow connectors are designed to terminate high voltage polymeric (XLPE EPR) screened (copper wire or copper tape) cables to CENELEC Interface Type B (400amp) bushings with 14mm plug-in pins, up to 33kV.
Nexans Euromold 400 series separable connectors include Nexans Euromold elbow connectors, Nexans Euromold tee connectors, Nexans Euromold straight plug connectors, Nexans Euromold bushings (air, oil and gas insulated switchgear) and Nexans Euromold surge arresters to protect electrical equipment up to 33kV.
Catalog thiết bị đóng cắt Fuji Electric - Air Circuit Breakers BT3 Series
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Catalog thiết bị đóng cắt Fuji Electric - 06 - MCCB & ACB
*********************************************************************
CTY TNHH HẠO PHƯƠNG - Nhà phân phối chính thức các thiết bị điện công nghiệp và tự động hóa của hãng FUJI ELECTRIC JAPAN tại Việt Nam
Xem chi tiết các sản phẩm Fuji Electric tại
http://haophuong.com/b1033533/fuji-electric
Underground Cable Accessories
Elastimold® offers the industry's most complete package for managing underground cable connections.
Broad Product Range..
Elastimold accessories, available from 5kV to 138kV, connect, ground, splice, terminate and protect underground cable.
Elastimold Innovation
Elastimold’s long, innovative history includes pioneering such products as extended and repair elbows, jacket seal elbows, and shrink-fit joints.
900 Series Interface F Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface F bushings on switchgear and transformers up to 42kV. Nexans 944TB Tee Connectors provide high voltage cable terminations using separable tee shape connectors :
Nexans 944TB/G - 12kV 2500Amp 70-80sqmm Conductors
Nexans K944TB/G - 24kV 2500Amp 16-800sqmm Conductors
Nexans M944TB/G - 36kV 2500Amp 35-800sqmm Conductors
Nexans P944TB/G - 42kV 1250Amp 50-800sqmm Conductors
Nexans Euromold 400 series screened separable connectors are EPDM pre-moulded,high voltage cable terminations for 6.6kV, 11kV, 15kV, 24kV and 33kV electrical equipment including switchgear, transformers and motors.
Nexans Euromold 400 series separable connectors include Euromold elbow connectors, Euromold tee connectors, Euromold bushings (oil insulated) and Euromold surge arresters to protect electrical equipment up to 33kV.
Nexans Euromold Separable Elbow Connectors 400 Series, 400TB 440TB Features :
Connector for terminating high voltage polymeric (XLPE EPR) cables, 11-33kV
Plug in bolted tee connectors with current rating 630amps and 1250amps
Conductive EPDM jacket provides a touch safe screened termination
Suits copper wire and copper tape screened cable, 35-300sqmm
Type C 630A interface to CENELEC EN50180
T&D UK with the support of Nexans provide installation training and certification for experienced high voltage cable jointers up to 33kV.
Euromold Connectors 400 Series Interface Type B Bushing
* Connector Type : 14mm Plug-In Pin Contact
* Voltage Range : 11/12kV-33/36kV
* Current Rating : 400amps
* Specification : CENELEC EN50180 & EN50181
Euromold 400LR Elbow Connectors are used with 400 Series Interface B Bushing.
400 Series Interface C Compact Nexans Euromold Cable Connectors and Bushings connect and terminate HV cables to Interface C bushings on switchgear and transformers.
Nexans Euromold provide high voltage cable accessories to suit the 7 main bushing interfaces : A, B, C (Compact), C (Symmetrical), D, E and F.
Nexans Euromold cable joints, cable terminations, epoxy bushings, angled (elbow) and straight plug-in or bolted separable connectors for connecting, jointing and terminating high voltage cables.
Prysmian Group/Draka is world leader in the energy and telecom cables and systems industry. With sales ofsome €8 billion in 2012, more than 20,000 employees across 50 countries and 91 plants , the Group is strongly positioned in high-tech markets and offers the widest range of products, services, technologies and know-how
Prysmian Cables & Systems is the UK's largest domestic manufacturer of energy and telecommunications cables and systems to service home and export markets.
This is the draft electrical presentation that I use in the OSHA 10 hour classes. I put it up here to give the reader an idea what I cover in the one hour.
I want to thank John Gryzwacz and Bob Lomastro for helping me with this presentation. They are the best electrical trainers in the country. Both teach the OSHA 3095 class at the OSHA ed centers.
Bob is at www.safetywizard.com
John is www.oshaprofessor.com
These presentation are always in continual improvement so I put a date on the draft. There are many earlier versions of this.
Our VISION - Health, Safety & Environment
General site safety rules, Personal behavior and conduct.
Duty of Care – Employer Responsibilities , Employee obligation
Signs
Personal Protective Equipments ( P.P.E.)
Smoking Regulation, Traffic rules, Site Access & Security
Welfare & First Aid Facilities.
Reporting Incidents
Emergency Procedure - In case of accidents, FIRE
Safety Inspections. Safety Monitoring Meeting.
Safety Trainings
Safety Motivation - Safety Incentive Scheme, Disciplinary Action.
Workplace Hazard & Solutions (Housekeeping, Working at height, FIRE etc)
2. Objectives
In this course, we will discuss the following :
Common electrical hazards
Electrical equipment defects/hazards
Tools/techniques used in identifying hazards
Training
Safe working practices
Personnel protection
3. Electrical Hazards
Electric shock/electrocution occurs when current flows
through the body causing damage
Burns are caused by arc blast or hot conductors:
− Thermal
− Electrical
Indirect falls from ladders, scaffolds
or other walking working surfaces
4. Electrical Hazards
Explosions are caused when electricity provides a
source of ignition for an explosive mixture in the
atmosphere.
Fires are caused by overloading circuits or excessive
current flowing through faulty wiring; setting fire to
insulation and surrounding materials.
5. Electrical Utilization Systems 1910.302(a)
Scope and application
− Electrical installations and utilization equipment
installed or used within or on buildings, structures
and other premises:
» Yards
» Carnivals
» Parking and other lots
» Mobile homes
» Recreational vehicles
» Industrial substations
» Conductors that connect the installations to a supply of
electricity
» Other outside conductors on the premises
6. Electrical Utilization Systems 1910.302(a)
Not covered
− Installations in ships
− Installations underground in mines
− Installations of railways for generation exclusively for
signaling and communication purposes
− Installations of communication equipment under the
exclusive control of communication utilities
− Installations under the exclusive control of electric
utilities for the purpose of communication or metering
7. Extent of Application 1910.302(b)
The requirements are applicable to all installations, regardless of
when they were designed or installed §§1910.302 (b)(1).
Installations made after March 15, 1972, shall comply with the
provisions of §§1910.302 through 1910.308, except paragraphs (b)
(3) and (b)(4) of this section.
Requirements applicable to installations made after April 16, 1981
§§1910.302 (b)(1) and §§1910.302 (b)(3).
Requirements applicable to installations made after August 13, 2007
§§1910.302 (b)(1), §§1910.302 (b)(3) and §§1910.302 (b)(4).
8. General Requirements 1910.303(b)(1)
Examination installation, and use of equipment
− Electrical equipment must be free from recognized
hazards:
» Cables exposed to
sharp edges
» Splices
» Bare conductors
9. General Requirements 1910.303(b)(2)
Listed or labeled equipment
shall be installed and used in
accordance with its listing and
labeling.
10. Nationally Recognized Testing Laboratories
Canadian Standards Association (CSA International)
Communication Certification Laboratory, Inc. (CCL)
Curtis-Straus LLC (CSL)
FM Approvals LLC (FM)
Intertek Testing Services NA, Inc. (ITSNA)
MET Laboratories, Inc. (MET)
NSF International (NSF)
National Technical Systems, Inc. (NTS)
SGS U.S. Testing Company, Inc. (SGSUS)
Southwest Research Institute (SWRI)
TUV SUD America, Inc. (TUVAM)
TUV SUD Product Services GmbH (TUVPSG)
TUV Rheinland of North America, Inc. (TUV)
Underwriters laboratory Inc. (UL)
Wyle Laboratories, Inc. (WL)
11. General Requirements 1910.303(b)(3)
Insulation integrity
− Completed wiring installations must be free from
short circuits
12. General Requirements 1910.303(b)(4)
Interrupting rating
− Sufficient for the nominal circuit voltage and current
available
Note: 12 American Wire
Gauge (AWG) wire
connected to 40 amp circuit
breaker
14. General Requirements 1910.303(b)(6)
Deteriorating agents
− Unless identified for use in the operating environment, no
conductors or equipment shall be:
» Located in damp or wet locations
» Exposed to agents that have a deteriorating effect on the
conductors or equipment
» Exposed to excessive
temperatures
15. General Requirements 1910.303(b)(7)
Mechanical execution of work
− Equipment shall be installed in a neat workmanlike
manner.
16. General Requirements 1910.303(b)(7)(i)
Unused openings shall be effectively closed to
afford protection substantially equivalent to the wall
of the equipment.
17. General Requirements 1910.303(b)(7)(ii)
Conductors shall be
racked to provide ready
and safe access in
underground and
subsurface for installation
and maintenance.
18. General Requirements 1910.303(c)(3)
Splices
− Splicing devices suitable
for use
− Brazing, welding, or
soldering
− Splices must be joined
mechanically and
electrically secure before
soldering
19. General Requirements 1910.303(d)
Arcing parts
− Parts of electric equipment that produce arcs, sparks, flames,
or molten metal shall be enclosed or separated and isolated
from all combustible material.
20. General Requirements 1910.303(e)
Marking
− Electrical equipment must have the manufacturer's name,
trademark, or other descriptive marking.
− Markings must provide voltage, current, wattage, or other
ratings as necessary.
− Markings must have
sufficient durability to
withstand the environment
involved.
21. General Requirements 1910.303(f)(2)
Identification of
disconnecting means and
circuits
− Each service, feeder, and branch
circuit, at its disconnecting means or
over-current device, must be legibly
marked to indicate its purpose.
22. General Requirements 1910.303(f)(4)
Capable of accepting a lock
− Disconnecting means shall be capable of being
locked in the open position.
23. Space About Electrical Equipment 1910.303(g)(1)
Sufficient access and working space must be
provided and maintained to permit ready and
safe operation and maintenance of
equipment.
24. Space About Electrical Equipment 1910.303(g)(1)(i)
TABLE S–1.— MINIMUM DEPTH OF CLEAR WORKING SPACE AT ELECTRIC EQUIPMENT, 600 V OR LESS
Minimum clear distance for condition 2,3
Nominal voltage to ground Condition A Condition B Condition C
m ft m ft m ft
0 - 150 1
0.9 3.0
1 1
0.9 1
3.0 0.9 3.0
151 - 600 1
0.9 3.0
1
1.0 3.5 1.2 4.0
Condition A — Exposed live parts on one side and no live or grounded parts on the other side of
the working space
Condition B — Exposed live parts on one side and grounded parts on the other side
Condition C — Exposed live parts on both sides of the work space with the operator between
25. Space About Electrical Equipment 1910.303(g)(1)(i)
If the nominal voltage to ground is from 151 - 600 V:
27. Space About Electrical Equipment 1910.303(g)(1)(i)
Width of working space in front of the electric equipment
shall be the width of the equipment or 762 mm (30 in.),
whichever is greater.
3 feet 30 inches
28. Guarding of Live Parts 1910.303(g)(2)(i)
Live parts of electric equipment operating at 50
volts or more must be guarded.
29. Wiring Design and Protection 1910.304(a)(2)
Polarity of CORRECT
connections Neutral Hot
− No grounded conductor
may be attached to any Ground
terminal or lead so as to
reverse designated
polarity.
Neutral
Hot
Ground
INCORRECT
(Reversed Polarity)
31. Receptacles and Cord Connectors 1910.304(b)(2)(i)
Receptacles installed on 15- and 20- ampere
branch circuits shall be of the grounding type
− Except as permitted for replacement receptacles in
paragraph (b)(2)(iv).
32. Receptacles and Cord Connectors 1910.304(b)(2)(iv)(C)(2)
A nongrounding - type receptacle may be replaced
with a ‘‘GFCI Protected’’ type receptacle and shall be
marked ‘‘GFCI Protected’’ and ‘‘No Equipment
Ground”.
Equipment grounding conductor may not be
connected to such grounding-type receptacles.
GFCI Protected
Note: Marked “GFCI Protected’’
and ‘‘No Equipment Ground”
No equip. Ground
33. GFCI Protection for Personnel 1910.304(b)(3)(i)
All 125 volt receptacles installed in bath rooms or
on rooftops shall have GFCI protection.
34. GFCI Protection for Personnel 1910.304(b)(3)(ii)(A)
Temporary wiring installations
− All 125 volt, single phase, 15 - 20 ampere, shall be
GFCI protected during maintenance, remodeling or
construction like activities.
36. GFCI Protection for Personnel 1910.304(b)(3)(ii)(A)
Note 2 to paragraph (b)(3)(ii)(A) of this section:
− Cord sets and devices incorporating the required ground - fault
circuit -interrupter that are connected to the receptacle closest
to the source of power are acceptable forms of protection.
37. GFCI Protection for Personnel 1910.304(b)(3)(ii)(B)
Temporary wiring installations
− Receptacles other than 125 volt, single phase, 15-20 ampere,
shall be GFCI protected.
GFCI / 240 VAC
38. Outlet Devices 1910.304(b)(4)(ii)(B)
A receptacle shall not be over loaded:
− As specified in table S-4.
Note: Power strip plugged
into another power strip
39. Outlet Devices 1910.304(b)(4)(ii)(B)
Safety factor of 20%
TABLE S–4. — Maximum Cord- and Plug- Connected Load to Receptacle
Receptacle Maximum
Circuit rating
rating load
(amperes)
(amperes) (amperes)
15 or 20 15 12
20 20 16
30 30 24
40. Grounding Connections 1910.304(g)(4)
A grounding electrode conductor shall be
used.
41. Grounding Path 1910.304(g)(5)
The path to ground from circuits
− Permanent
− Continuous, and
− Effective
42. Grounding Path 1910.304(g)(6)(iii)
Frames of electric ranges
Wall-mounted ovens
counter-mounted cooking
units
Clothes dryers
Metal outlet or junction boxes
that are part of the circuit for
these appliances shall be
grounded.
43. Wiring Methods, Components, and
Equipment 1910.305(b)(1)
Cabinets, boxes, and fittings
− Conductors entering boxes,
cabinets, or fittings shall be
protected from abrasion.
− Openings through which
conductors enter shall be
effectively closed.
44. Wiring Methods, Components, and
Equipment 1910.305(e)(1)
Enclosures for damp
locations shall be installed
so as to prevent moisture
or water from entering and
accumulating.
45. Wiring Methods, Components, and
Equipment 1910.305(g)(1)(ii)
Flexible cords and cables
− May be used only for:
» Pendants
» Wiring of fixtures
» Connection of portable lamps or
appliances
» Portable and mobile signs
» Elevator cables
» Wiring of cranes and hoists
» Connection of stationary
equipment
46. Wiring Methods, Components, and
Equipment 1910.305(g)(1)(iv)(b)
Flexible cords and cables may not be used
when run through holes in walls, ceilings or
floors.
47. Wiring Methods, Components, and
Equipment 1910.305(g)(2)(iii)
Flexible cords must be connected to devices
and fittings.
− Strain relief must be provided to prevent pull from
being directly transmitted to joints or terminal
screws.
48. Wiring Methods, Components, and
Equipment 1910.305(j)(2)(iv)
Wet or damp locations
− A receptacle installed in a wet or damp location shall
be suitable for the location.
49. Training 1910.332(a)
Training provided to employees who face risk of
electric shock that is not reduced to a safe level.
− Note: Employees in occupations listed in Table S-4
face such a risk and are required to be trained. Other
employees who also may reasonably be expected to
face comparable risk of injury due to electric shock or
other electrical hazards must also be trained.
50. Table S – 4 Occupational Categories of Employees Facing Higher Than Normal
Risk of Electrical Accident
Blue collar supervisor (1)
Electrical and electronic engineers(1)
Electrical and electronic equipment assemblers(1)
Electrical and electronic technicians(1)
Electricians
Industrial machine operators(1)
Material handling equipment operators(1)
Mechanics and repairers(1)
Painters(1)
Riggers and roustabouts(1)
Stationary engineers(1)
Welders
Footnote(1) Workers in these groups do not need to be trained if their work or the work of those they supervise
does not bring them or the employees they supervise close enough to exposed parts of electric circuits operating
51. Training 1910.332(b)
Employees trained in and familiar with safety-
related work practices related to job assignment
− Unqualified persons
− Qualified persons
Type of training
− Classroom or on the job
52. Safety Related Work Practices 1910.333(a)
Employed to prevent electric shock or other
injuries resulting from direct or indirect electrical
contacts when performing work
Should be consistent with the nature and extent
of the associated electrical hazards
53. Safety Related Work Practices 1910.333(a)
The employer must not permit an employee to work
near or on energized equipment or circuits.
− If employee could contact the power circuit, it must be
deenergized.
− If not possible to deenergize, other safety-related work
practices must be used.
Note: Dielectric
safety mat
54. Safety Related Work Practices 1910.333(b)-(d)
Lockout and tagging should comply with 29 CFR
1910.147 – The Control of Hazardous Energy.
− Written copy of procedures
Only qualified persons may work on electric
circuit parts or equipment that has not been
deenergized.
55. Use of Equipment 1910.334
Portable equipment handled in a manner not to
cause damage
Portable cord and plug connected equipment
and extension cords visually inspected
Defective or damaged equipment removed from
service
Only qualified person can perform testing work
on electric circuits or equipment
56. Safeguards for Personnel Protection 1910.335
Employees provided with and shall use, electrical protective
equipment that is appropriate for parts of the body to be
protected and for the work being performed.
Maintained in safe and reliable condition and periodically
inspected or tested.
Protective shields and barriers, or insulating materials used to
protect employee from electrically related injuries while
working near exposed energized parts.
Alerting techniques used to warn and protect employees from
hazards (barricades, attendants, signs, tags).
57. Summary
In this course, we discussed:
− Common electrical hazards
− Electrical equipment defects/hazards
− Tools/techniques used in identifying hazards
− Training
− Safe working practices
− Personnel protection
58. Thank You For Attending!
Final Questions?
1-800-NC-LABOR
(1-800-625-2267)
www.nclabor.com
Editor's Notes
The information in this presentation is provided voluntarily by the N.C. Department of Labor, Education Training and Technical Assistance Bureau as a public service and is made available in good faith. This presentation is designed to assist trainers conducting OSHA outreach training for workers. Since workers are the target audience, this presentation emphasizes hazard identification, avoidance, and control – not standards. No attempt has been made to treat the topic exhaustively. It is essential that trainers tailor their presentations to the needs and understanding of their audience. The information and advice provided on this Site and on Linked Sites is provided solely on the basis that users will be responsible for making their own assessment of the matters discussed herein and are advised to verify all relevant representations, statements, and information. This presentation is not a substitute for any of the provisions of the Occupational Safety and Health Act of North Carolina or for any standards issued by the N.C. Department of Labor. Mention of trade names, commercial products, or organizations does not imply endorsement by the N.C. Department of Labor. Revised 05 2011 WLL Deleted Slides with Tables and added more clarification to some slides.
MS Clip Art
(Photo from OSHA)
(Photo from OSHA)
Photo source: NCDOL
Photo source: NCDOL
NRTLs recognized by OSHA
Photo source: NCDOL
Photo source: NCDOL
Control inadequate wiring hazards. AWG – a measure of wire size.
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: www.niedaxusa.com
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Graphic source: CFR 1910 North Carolina.
Graphics source: An Illustrated Guide to Electrical Safety, 5 th Edition.
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Graphic source: An Illustrated Guide to Electrical Safety, 5 th Edition.
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Graphic source: CFR 1910 North Carolina.
Photo source: www.stormcopper.com
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Photo source: NCDOL
Right Photo source: NCDOL Left Photo source: NCDOL
Photo source: NCDOL
MS Clip Art
TABLE S-4. -- Typical Occupational Categories of Employees Facing a Higher Than Normal Risk of Electrical Accident
MS Clip Art
MS Clip Art
Photo source: NCDOL
MS Clipart
MS Clip Art
For web training: Tell students that now is time they log out of the session, if they have no further questions.
This table applies to all electric installations no matter when they were designed or installed.
Only table (b)1 applies to installations that were made after March 15, 1972.
Explain to the students that all installations that were made after April 16, 1981, shall comply with table (b)1.
Explain to the students that all installations that were made after April 16, 1981, shall comply with table (b)1 and (b)3.
Installations made after August 13, 2007, shall comply with table (b)1.
Installations made after August 13, 2007, shall comply with tables (b)1 and (b)3.
Installations made after August 13, 2007, shall comply with tables (b)1, (b)3 and (b)4.