installations electrical installations and so on in hazardous areas

... promote international co-operation on all questions concerning standardization in the electrical and electronic fields To this end and in addition to other activities, the IEC publishes International ... These requirements are in addition to the requirements for installations in non -hazardous areas This standard applies to all electrical equipment and installations in hazardous areas whether permanent, ... installations in mines where explosive gas atmospheres other than firedamp may be formed and to electrical installations in the surface installation of mines – electrical installations in areas where...

Ngày tải lên: 25/12/2013, 10:42

... Typical Zone and Zone 21 circuits with bonding connection at more than one point 20.5.4 Bonding and insulation of screens for intrinsically safe circuits 20.5.5 Typical Zone and Zone 20 intrinsically ... and Zone 21 intrinsically safe circuits with bonding in the non -hazardous area 20.5.2 Typical Zone and Zone 21 intrinsically safe circuits with bonding in the hazardous area 20.5.3 Typical Zone ... Earthing and bonding 18.3.5 Application of earthing 18.3.6 Application of bonding 18.3.7 Electrical isolation 18.3.8 Conduit and cable installation 18.4 Additional requirements or relaxations...

Ngày tải lên: 18/04/2014, 11:03

... ordinary-hazard installation: c) In a high-hazard installation: 500 per installation 000 per installation 000 per installation 6.8 Recycling installations 6.8.1 General Recycling installations shall only ... operate In some life safety applications an authority may require sprinkler protection only in certain designated areas and solely to maintain safe conditions for the evacuation of persons from ... exceed the following a) In a combined light -and ordinary-hazard installation: b) In a combined light -and high-hazard installation: 500 per installation 250 per installation The notional number shall...

Ngày tải lên: 28/09/2014, 23:26

... Extinguishing Trades Association Health and Safety Executive Home Office Independent Fire Engineering and Distributors Association Institution of Fire Engineers London Fire and Emergency Planning Authority ... Overhaul, including periodic inspection and test procedures for (CO2) and halon extinguishers Annex E (informative) Training of competent persons Annex F (informative) Halon extinguishers Annex G (informative) ... corrosion inhibition, freezing point depression, penetration, enhanced wetting and film or coating formation 3.2 body shell of an extinguisher or gas cartridge, excluding its accessories but including...

Ngày tải lên: 28/09/2014, 23:26

... simultaneously, and shall be determined as specified in section 4, or 22 Storage containers and accessories should be so located and arranged that inspection, testing, recharging and other maintenance ... within the enclosure to a point where combustion can no longer be sustained The rate of application and the time necessary to maintain the extinguishing concentration shall be determined according ... determined as specified in section 4, or In addition, for low pressure installations, the equivalent quantity of carbon dioxide that may remain liquid in the piping between the storage container and...

Ngày tải lên: 28/09/2014, 23:26

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Ngày tải lên: 28/09/2014, 23:26

... arrange a service and maintenance schedule, and keep records of the inspections, servicing and testing, and personnel training COMMENTARY AND RECOMMENDATIONS ON 10.1 The continued capability for ... (Marine Directorate) Electricity Supply Industry in England and Wales Engineering Equipment and Materials Users’ Association Fire Brigades Union Fire Extinguishing Trades Association Health and ... Classification of flammable liquids Types of system Planning Section Contract arrangements Contract drawings Extensions and alterations Commissioning and acceptance tests Section Periodic inspection,...

Ngày tải lên: 28/09/2014, 23:26

... °C Containers and accessories should be so located and arranged that inspection, testing, recharging and other maintenance is facilitated and interruption to protection is kept to a minimum Containers ... British Standard, their aims, relationship, content and application Regulations for Electrical Installations (Wiring Regulations), 15th edition, Institution of Electrical Engineers, Publications Sales ... containers of up to and including 0.5 litre water capacity BS 5306, Fire extinguishing installations and equipment on premises BS 5306-3, Code of practice for selection, installation and maintenance...

Ngày tải lên: 28/09/2014, 23:27

... extinguishing installations and equipment on premises Ð Part 3: Maintenance of portable fire extinguishers BS 7863, Recommendations for colour coding to indicate the extinguishing media contained ... British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated ... liquid (in L) contained in the tray Class B ratings are shown in Table Annex B (informative) Examples in the application of the recommendations for minimum provision of extinguishers B.1 Minimum...

Ngày tải lên: 28/09/2014, 23:27

... vacuum deposition, solution processes, including spin-coating, spray-coating, dip-coating, roller-coating and ink-jet printing, promise much less expensive fabrication of electronic devices These ... (side chain or main chain), are essential for the production of metal filament In addition, non-conjugated polymers containing the coordinating atom and possessing good charge conductivity, such ... the action of an electric field perpendicular to the ring-ring bond on the torsional angle and, as a consequence, the inter-ring conjugation With the inclusion of suitable substituents on the...

Ngày tải lên: 11/09/2015, 09:59

... hard landscaping: wind shelter 6.2 Vegetation and hard landscaping: solar shading and cooling 6.3 Vegetation and hard landscaping: privacy 6.4 Ponds and fountains 6.5 Albedo 6.6 Conclusions 107 ... important wind directions (eg dominant winds, cold winds), preventing buildings and landscape features from generating unacceptable wind turbulence, protecting space and buildings from driving rain and ... They include solar control in summer, but also solar gains in winter, wind protection in winter but generally wind access in summer (section 4.6) Strategies to provide thermal comfort in an outdoor...

Ngày tải lên: 28/06/2014, 23:20

... of wildland fires Vegetation response to fire can vary widely, depending on the burning season [3, 36] In particular, in Mediterranean ecosystems, resprouting ability after summer wildland fires ... communis recruitment only occurs in optimal precipitation conditions [14] On the other hand, it is well known that J phoenicea germination is slow and difficult and that seed production is irregular, ... relationship between the resprouting vigour and the prefire individual size, in those species where the great majority of individuals were in one of the two regeneration ages, only the individuals...

Ngày tải lên: 07/08/2014, 16:21

... rhythm, intonation patterns Fluency Good transactional and interpersonal skills Skills in talking short and long speaking in turns Skills in the management of interactions Skills in negotiating ... conversation can be analyzed in terms of routines, which are conventional ways of presenting information In Bygates opinion, there are two kinds of routines They are information routines and interaction ... interaction ones Information routines may be described to involve two sub- routines: expository and evaluation The former includes description, narration, comparison and instruction The latter consists...

Ngày tải lên: 07/09/2013, 13:06

... min-1, keeping the final temperature for 30 Mass spectra were obtained in electron-impact mode (electron energy 70 eV) Detection was performed in single ion monitoring with characteristic ions ... detection of the investigated analytes and the internal standard was carried out with electrospray ionization in positive and negative ion modes Mass spectra were obtained in multiple reaction monitoring ... was mainly involved in the acquisition, analysis, and interpretation of data, as well as in the writing of the paper RB focused on scientific support and contributed to the interpretation of...

Ngày tải lên: 20/06/2014, 20:20

... min-1, keeping the final temperature for 30 Mass spectra were obtained in electron-impact mode (electron energy 70 eV) Detection was performed in single ion monitoring with characteristic ions ... detection of the investigated analytes and the internal standard was carried out with electrospray ionization in positive and negative ion modes Mass spectra were obtained in multiple reaction monitoring ... was mainly involved in the acquisition, analysis, and interpretation of data, as well as in the writing of the paper RB focused on scientific support and contributed to the interpretation of...

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 14/11/2014, 12:00

... privations In the context of total war (demanding the complete participation and mobilization of entire societies, economies, and home fronts of nations) and the attendant militarization of education, ... emphasis on radical discontinuity by showing how traditions played a crucial role in helping individuals and societies cope with the personal and collective loss of the war’s more than nine million ... the war that War Land on the Eastern Front had ushered in modernity, breaking traditions, altering and recasting old certainties, and overthrowing empires In these investigations, ‘‘culture’’...

Ngày tải lên: 21/09/2012, 11:02