vùng lpzob lightning protection zone ob

... Lightning Protection Modules P3M – Protector DS3 Modules Ordering Information Dimensions Catalog Number ... Description Protection module Web Site: www.adc.com From North America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080 Fax: +1-952-917-3237 For a listing of ADC’s global...

Ngày tải lên: 27/10/2013, 01:15

... of lightning protection system Any metals within hazardous atmospheres having connections to other metals within 10 feet of lightning protection system will be bonded to the nearest lightning protection ... other protection system, separate lightning protection will not be required b Protection not included in other protection systems When external grounding system design does not include EMP protection, ... contact with earth to dissipate each lightning discharge without damage to the protected facility 2–2 Limitations in use of lightning protection a General Lightning protection will be installed as...

Ngày tải lên: 07/11/2013, 06:15

... [The author has patented this lightning protection system connector in the U.K and is pursuing similar protection and sales in the U.S. DJF] Final Tree Protection Lightning System Details Once ... from lightning strikes The owner of this home in New York reported recurrent lightning strikes on tall trees surrounding the building, but even a casual inspection showed that the lightning protection ... For evaluation only Recommendations for Installation of Lightning Protection Systems on Trees Having established the need for lightning protection and designed the earth (ground) termination we...

Ngày tải lên: 14/12/2013, 08:15

... or "control" lightning circuit No lightning protection system can be completely (nor thus far, to prevent lightning strikes), but they seem to help immensely on most occasions of lightning strikes ... touched by the sphere is considered to be under a "zone of protection" Using this method, a properly designed lightning protection system will have lightning rods installs such that when the sphere ... the lightning protection system and any objects susceptible to a side-flash, effectively reducing the difference in voltage to near zero Such "bonding" allows the voltage on a lightning protection...

Ngày tải lên: 14/12/2013, 08:15

... A lightning protection system does not prevent lightning from striking; it provides a means for controlling it and preventing damage by providing a low resistance path for the discharge of lightning ... receptacles to protect computers and other office equipment UL's Role in Lightning Protection: UL's Master Label Program for lightning protection involves periodic factory testing and inspection of system ... Reconditioned Lightning Protection Program Under this program, the entire system must comply with the current UL Standards How You Can Protect Your Building: Install a UL Master Label Lightning Protection...

Ngày tải lên: 14/12/2013, 08:15

... associated with obesity and type-2 diabetes [9,10,15-21] Conversely, loss of function of TLR4 led to the protection of saturated fat-induced insulin resistance and diet-induced obesity in mice ... also developed obesity, hyperlipidemia, and insulin resistance in response to high fat diet and the transfer of gut microbiota from TLR5 deficient mice to WT-germ-free mice conferred obesity, hyperlipidemia, ... study, we investigated whether feeding TLR4 mutant mice a diet high in TF would offer protection against TF-induced obesity, insulin resistance, and inflammation in TLR4 mutant mice We found that loss...

Ngày tải lên: 11/08/2014, 03:20

... associated with obesity and type-2 diabetes [9,10,15-21] Conversely, loss of function of TLR4 led to the protection of saturated fat-induced insulin resistance and diet-induced obesity in mice ... also developed obesity, hyperlipidemia, and insulin resistance in response to high fat diet and the transfer of gut microbiota from TLR5 deficient mice to WT-germ-free mice conferred obesity, hyperlipidemia, ... study, we investigated whether feeding TLR4 mutant mice a diet high in TF would offer protection against TF-induced obesity, insulin resistance, and inflammation in TLR4 mutant mice We found that loss...

Ngày tải lên: 11/08/2014, 06:22

... Earthing, Lightning & Surge Protection Forum – IDC Technologies Session Ten: Lightning Protection for Industrial Plants these connect to the building foundation steel, providing a suitable earth for lightning ... power and signal lines Figure Risk Assessment, no protection Earthing, Lightning & Surge Protection Forum – IDC Technologies Session Ten: Lightning Protection for Industrial Plants Figure Risk Assessment, ... cabinet Whatever Earthing, Lightning & Surge Protection Forum – IDC Technologies Session Ten: Lightning Protection for Industrial Plants it represents we need to provide protection such that everything...

Ngày tải lên: 20/09/2015, 17:38

... Manage Acronis Secure Zone Cửa sổ Acronis Secure Zone Wizard ra: The image part with relationship ID rId6 was not found in the file Ấn Next, cửa sổ Create Acronis Secure Zone: The image part with ... lượng phân vùng bảo mật cho đủ (tất nhiên sau file lưu tạo nén nhỏ hơn) Cũng đừng tạo phân vùng bảo mật lớn chiếm nhiều ổ cứng gây lãng phí Sau bạn chuyển lại dung lượng cho phân vùng bảo mật, ... rId8 was not found in the file Kéo trượt để xác định cỡ cho phân vùng bảo mật, bạn gõ trực tiếp vào ô Partition size Chú ý phân vùng bảo mật bạn tạo phải đủ lớn để chứa file lưu bạn, tức bạn nên...

Ngày tải lên: 26/01/2014, 04:20

... l nng sut dong ring tng ng vi cỏc mc hi trờn III KÊT QUả Và THảO LUậN Din bin mt b nt (Thosea obliquistriga Hering.) hi dong ring qua 02 nm 2008 v 2009 Nm 2008 v 2009 ó tin hnh iu tra din bin ... hi (CSH) 3,78% (Hng Yờn) v 0,22 - 0,5 con/lỏ, ch s hi 2,67 - 16,89% (H Ni) Bng Mt b nt (Thosea obliquistriga Hering.) hi dong ring ti Hng Yờn v H i (trng thỏng 2, thu hoch thỏng 11/2008) T i ... ba a im Khoỏi Chõu (Hng Yờn), Thanh Trỡ v Thanh Oai (H Ni) Kt qu (ti bng 2) Bng Mt b nt (Thosea obliquistriga Hering.) hi dong ring ti cỏc a im ca Hng Yờn v H i (trng thỏng 1, thu hoch thỏng 12...

Ngày tải lên: 03/04/2014, 16:20

... due to lightning 12 Type of loss 14 Need for lightning protection 14 Protection measures 15 Basic design criteria 15 Lightning Protection Level (LPL) 16 Lightning Protection Zone (LPZ) 18 Protection ... lightning Type of loss Need for lightning protection Protection measures Basic design criteria Lightning Protection Level (LPL) Lightning Protection Zone (LPZ) Protection of structures BS EN 62305-2 ... 62305:2006 Protection Against Lightning www.furse.com Theory of lightning Theory of lightning Characteristics of lightning Transient overvoltages (surges) www.furse.com Theory of lightning Theory of lightning...

Ngày tải lên: 08/08/2014, 13:21

... www.furse.com Lightning Protection Level (LPL) | BS EN 62305-1 BS EN 62305-1 General principles Lightning Protection Zone (LPZ) The general principle is that the equipment requiring protection should ... ds Figure 2.4: LPZ defined by protection measures against LEMP 19 www.furse.com Lightning Protection Zone (LPZ) | BS EN 62305-1 BS EN 62305-1 General principles Protection of structures An LPS ... by the lightning protection designer Details of the methodology and criteria for deciding the most suitable protection measures is given in BS EN 62305-2 Risk management 15 www.furse.com Protection...

Ngày tải lên: 08/08/2014, 13:21

... readers interpretation and understanding BS EN 62305-3 | Lightning Protection System (LPS) Lightning Protection System (LPS) Lightning Protection Level (LPL) has been designated and identified ... BS EN 62305-1, the Lightning Protection Level (LPL) is defined between a set of maximum and minimum lightning currents This is explained in depth on pages 16 – 17, Lightning Protection Level (LPL) ... III test) NOTE The LPL governs the choice of the appropriate structural Lightning Protection System (LPS) and Lightning Protection Measures System (LPMS), one option of which can include a set...

Ngày tải lên: 08/08/2014, 13:21

... 30m radius would leave the upper 20m needing lightning protection If an air rod or a conductor on the edge of the roof was installed then a zone of protection angle could not be claimed because ... effective zone of protection using the protective angle method See Figure 4.21 Figure 4.20a: Application of the protection angle method to catenary conductors forming an isolated system Protection ... 46 BS EN 62305-3 | Protective angle method www.furse.com Varying the protection angle is a change to the simple 45º zone of protection afforded in most cases in BS 6651 Furthermore this standard...

Ngày tải lên: 08/08/2014, 13:21

... earth electrode seals ● BS EN 50164-6 Lightning protection components (LPC) Part 6: Requirements for lightning strike counters ● BS EN 50164-7 Lightning protection components (LPC) Part 7: Requirements ... series These are: ● BS EN 50164-1:2000 Lightning protection components (LPC) Part 1:Requirement for connection components ● BS EN 50164-2:2002 Lightning protection components (LPC) Part 2: Requirements ... group in CENELEC These are: ● BS EN 50164-4 Lightning protection components (LPC) Part 4: Requirements for conductor fasteners ● BS EN 50164-5 Lightning protection components (LPC) Part 5: Requirements...

Ngày tải lên: 08/08/2014, 13:21

... Protective Devices Zoned protection concept Protection against LEMP is based on a concept of the Lightning Protection Zone (LPZ) that divides the structure in question into a number of zones according ... approach referred to as Lightning Protection Zones (LPZ) It provides information for the design, installation, maintenance and testing of a Lightning Electromagnetic Impulse (LEMP) protection system ... LEMP protection measures in existing structures LPZ Equipment Critical equipment Equipment LPZ Telecoms line Water pipe Gas pipe SPD 0/1 - Lightning current protection SPD 1/2 - Overvoltage protection...

Ngày tải lên: 08/08/2014, 13:21

... bonded to the structural lightning protection For example CCTV cameras should be safely positioned within the zone of protection provided by the structures lightning protection It may be necessary ... of lightning, but also from direct strikes A direct lightning strike must be prevented if at all possible This can typically achieved by ensuring that external equipment is within a zone of protection ... examples of LEMP Protection Measures Systems | BS EN 62305-4 BS EN 62305-4 Electrical and electronic systems within structures Extending structural lightning protection The benefit obtained from...

Ngày tải lên: 08/08/2014, 13:21

... structural Lightning Protection System and so reduce PB from to a lower value depending on the Class of LPS (I to IV) that we choose By the introduction of a structural Lightning Protection System, ... Characteristics of Zone Z1 (Entrance area) 102 Parameter People potentially in danger in the zone Table 6.15: Characteristics of Zone Z4 (Offices) Table 6.13: Characteristics of Zone Z2 (Garden) ... people are at risk outside the building, risk R1 for zone Z1 may be disregarded and the risk assessment performed for zone Z2 only Characteristics of zone Z2 are reported in Table 6.4 Parameter A l(P)...

Ngày tải lên: 08/08/2014, 13:21

... flash near an object Lightning flash striking close enough to an object to be protected that it may cause dangerous overvoltages Lightning flash to an object Lightning flash striking an object to ... competent and skilled in the design of a Lightning Protection System Lightning protection installer Person competent and skilled in the installation of a Lightning Protection System Grid-like spatial ... elements, metal ducts, etc which may carry a part of the lightning current External lightning protection system Part of the Lightning Protection System consisting of an air termination system,...

Ngày tải lên: 08/08/2014, 13:21