Mar 5

grounding electrode conductor

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Lightning Protection refers to the lightning current into the ground quickly and safely to avoid the energy losses caused by lightning. Ground can be said that the most important part of mine works, because whether or lightning protection Thunderstorm for electrostatic induction, electromagnetic induction, and lightning protection technology invasion are ultimately the lightning current into the earth. Therefore not a good grounding, lightning protection can not be qualified process. Franklin is the basic principle of the principle of lightning flash cut, triggered lightning into the earth. Attracted the lightning flash device cut-off, can rapidly drain into the ground, to the mine disaster reduction purposes. Otherwise, although a good cut-off flash device, not well grounded, can not play a good lightning effect. Can not be quickly attracted to vent into the mine, the inevitable lightning strikes, the consequences are
grounding electrode conductor

Home> Patents> apply for a public statement content (24) Patent Browse by Subject Full Text Introduction: The utility model relates to a parallel gap for overhead lines lightning protection devices, which include the insulator string (2) and ground side of the electrode, wire side of the electrode (6,7), as described in grounded side electrode, the wire side of the electrode to both ends of insulator strings described, and the side of said ground electrode, wire side of the electrode composition with air as insulation between the media and with the stated the protection of series-parallel gap insulator, and so referred to the length of protection gap (Z) less than the long string of insulator strings as described in (Z0), thus being struck by lightning in overhead lines above, the gap formed in parallel as described in the discharge channel. Grounded side electrode, wire electrode to form the parallel side of the gap and the ground side of the insulator string and the line side of the connection, so that they were the same between the potential of being struck by lightning in overhead lines, the protection gap will be the first discharge. The utility model designed to parallel clearance simple structure and easy installation, and the diameter of the electrode materials that can withstand repeated burning a large arc.
Application No.: 200420001291.8 Filing Date: 2004.02.12 Name: overhead lines parallel gap lightning protection device open (Notice) No.: CN2687923 Open (Notice) Date: 2005.03.23 Main Classification: H02H7/22 division of the original application number: Category No.: H02H7/22; H02H9/04; H01H83/10 Issued Date: Priority: Application (patent) by: China Electric Power Research Institute; State Grid Corporation of power grid construction branch; Chongqing Power Company; Guangxi Electric Power Test & Research Hospital; Fujian Electric Power Co., Ltd.; Fujian Province Electric Power Research Institute; Zhejiang Electric Power Company; Liaoning Electric Power Survey & Design Institute; Siping Line Equipment Factory Address: Haidian District, Beijing 100085, Qinghe Road No. 15, invented a small business (design) by: Chen Weijiang; Sun Zhaoying; Guofu; Wu Yu-hong; Liang Baosheng; Zhang Xuejun; Ping Jinling; Tangshi Yu; Li Minggui; in Jianlong; Liaofu Wang; turnkey strong; Coptis strong; Wang Li; Kwok international application: the international publication: entry into the national date: Patent Agent: China International Trade Promotion Committee Patent and Trademark Office Agent: Li Shan
Report document describes
NEC America introduces low-voltage grounding in technology, including:   NEC in some basic concepts about the earth and and the IEC (International Electrotechnical Commission) standards were compared;   DC power systems and AC power system grounding problem;   Ground electrode system (including metal pipes, construction steel, cement packaging electrodes, grounding rings, rod electrodes, plate electrodes) the role and requirements;   to the electrode wiring and equipment, the choice of protective ground line diameter;   supply-side lap, equipment Line-side lap, lap grounding electrode system.
NEC America introduces low-voltage grounding in technology, including:   NEC in some basic concepts about the earth and and the IEC (International Electrotechnical Commission) standards were compared;   DC power systems and AC power system grounding problem;   Ground electrode system (including metal pipes, construction steel, cement packaging electrodes, grounding rings, rod electrodes, plate electrodes) the role and requirements;   to the electrode wiring and equipment, the choice of protective ground line diameter;   supply-side lap, equipment Line-side lap, lap grounding electrode system. Restore "> Document Classification technology - other documentation label electrode (11228) Ground wire (2833) Overlap (4270) Power Systems (1482) lightning (1101) Grounding System (810) Conductor (9806) NEC (132) United States ( 491956) Zheng Jiang (35)
Mick
2011/02/12 08:49
the earth must be treated as a semiconductor, while the grounding electrode itself is a pure. conductor. these factors make the design of an earthing .
Hilary
2011/02/13 10:16
designing for a low resistance earth interface (grounding)
Boyce
2011/03/03 06:17
grounding electrode – a conductor connected to the lightning protection system intended . an immersed grounding electrode is in contact with the water and .
Vera
2011/03/13 07:13
more technical lightning grounding information
Beverly
2011/03/15 11:06
grounding electrode conductor (gec) you must install a gec to connect the neutral . install the grounding electrode as close as possible to where the .
Lambert
2011/03/26 23:54
grounding and bonding of separately derived systems
Erin
2011/04/01 12:56
the equipment-grounding conductor is a non-current carrying conductor whose primary function is safety. grounding electrode conductor that bonds the system to the grounding .
Doreen
2011/04/02 05:55
grounding - what you need to know
Avivi
2011/04/04 05:47
have you done any service work lately, and noticed a spark as you connect or reconnect the grounding electrode conductor to the ground rod of what appeared to be a .
Betty
2011/04/10 20:37
the shocking truth about grounding electrode conductors
Phoenix
2011/04/13 17:23
grounding-electrode conductor size. q: where the sizes of service-entrance conductors are increased to reduce voltage drop, does the national electrical .
Michael
2011/04/14 21:35
electrical contractor: grounding-electrode conductor sizes .
Beckyrebecca
2011/04/15 04:52
a grounding electrode conductor is a conductor between a. common single grounding point in the system and the . welded. a grounding electrode can refer to the common 5/8 inch .
Victor
2011/04/21 18:55
grounding
Truman
2011/04/22 19:25
the ground rod and the ground conductor bond is fundamental to a long . "the grounding electrode conductor shall be copper, aluminum, or copper clad .
Vivien
2011/04/23 18:51
nec compliant ground electrode systems
Elmer
2011/04/26 04:55
required grounding electrode conductor (gec) terminal marking. conductor or the size of the dc grounding-electrode. conductor specified by 250.166. the .
Drew
2011/05/04 10:39
home power 133, october & november 2009
Bonnie
2011/05/16 01:38
a typical earthing electrode (left) at a home in australia. the grounding electrode conductor is also usually bonded to pipework and structural steel in larger structures.
Lucius
2011/05/17 23:34
ground (electricity) - wikipedia, the free encyclopedia
Gina
2011/05/23 02:46
the easiest way to understand grounding is that in the electrical system all connections made from the system . a grounding electrode conductor to a grounding electrode. more .
Selena
2011/05/30 15:54
brief powerpoint on grounding & bonding basics- for home .
Barlow
2011/06/03 03:51
grounding electrode: the conducting element in electrical contact with the earth . grounding electrode conductor: a conductor not normally carrying current used to connect .
Prudence
2011/06/04 04:55
solar ray: glossary of alternative energy terms (g-o)
Yvonne
2011/06/23 21:07
association specifies ground electrode testing every three years for a system in good . ground electrode conductor. between the ground electrode conductor and .
Chester
2011/06/26 01:30
checking ground electrode impedance for commercial .
Brant
2011/06/30 20:49
electrode" which is code language for a "system ground" or connection . this does not refer to the grounding conductor also called the equipment ground.
Jo
2011/07/01 01:13
portable generators and osha construction regulations
Burnett
2011/07/03 04:19
the size of the grounding electrode conductor of a grounded or ungrounded ac system shall not be less than given in table 250-66. exception: .
Morgan
2011/07/03 19:40
size of alternating-current grounding electrode conductor .
Jasmine
2011/07/07 05:09
storage tank water heaters, grounding electrode conductor connections and more . grounding electrode conductor connections. q: am i permitted to connect two ground rods .
Debbiedeborah
2011/07/16 07:20
electrical contractor: storage tank water heaters, grounding .
Henry
2011/07/31 15:15
the grounding electrode conductor must be installed in one continuous . the grounding electrode conductor must terminate to the grounding electrode by the use of .
Otto
2011/08/02 06:53
measuring the ground resistance
Borg
2011/08/12 00:29
the grounding electrode, grounding electrode conductor and equipment grounding conductor will be discussed along with methods for testing these components.
Selma
2011/08/15 16:00
msha metal/nonmetal electrical grounding requirements
Jr
2011/08/16 19:55
conductor connected. between the grounding. electrode (rod/grid) . each electrical enclosure and the grounding electrode conductor (rod/grid/bed) at. the .
Phil
2011/09/04 17:29
electrical grounding
Jane
2011/09/22 18:37
3. where the grounding electrode conductor is connected to made electrodes that portion of the conductor that is the sole connection to the grounding .
Angelo
2011/09/27 04:22
grounding conductor size selector calculator
Ashley
2011/10/13 04:23
a grounding electrode conductor runs. down the side of the power pole . the grounding electrode conductor helps to reference the. service equipment to earth, and .
Hazel
2011/10/13 16:00
el3 -grounding electrode system
Glenn
2011/10/17 22:02
find detailed product information for copper grounding conductor and other products from guangxi dikai sci & tech co., ltd. on alibaba.com.
Lambert
2011/10/21 15:55
copper grounding conductor - detailed info for copper .
Rudolf
2011/11/25 02:46
section 250.62, a grounding electrode conductor can be solid, stranded, insulated, . awg or larger grounding electrode conductor to the electrode will be below or within the .
Kenny
2011/11/30 19:49
concrete encased electrode bulletin
Susie
2011/12/05 08:14
grounding of an electrical system is achieved by connecting a current-carrying conductor . grounding electrode conductor: this is the conductor used to connect the grounding .
Penelope
2011/12/11 02:43
galvan industries : featured articles
Gill
2011/12/11 07:09
a plate electrode that exposes no less than 2 square feet (0.186 m2) of surface to . conductor not smaller than no. 2 shall be considered as a grounding electrode.
Sbrina
2011/12/19 17:08
home service grounding electrodes - internachi
Sabina
2011/12/21 07:55
when the equipment-grounding conductor is bare. equipment-grounding conductors in other . conductor may be connected to the ac grounding electrode .
Renee
2011/12/25 23:21
pv grounding
Craig
2012/01/01 09:59
part iii. grounding electrode system and grounding electrode conductor . for example, if the ground resistance of each electrode were 50 ohms, the total .
Virgil
2012/01/26 00:46
250.56 resistance of ground rod electrode.
Carl
2012/01/26 06:54
sizing of the grounding electrode conductor (gec): based on the size of service feeders. a #6 or larger grounding conductor that is securely-fastened to the .
Aimee
2012/01/26 10:01
grounding electrode conductor
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