A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Practical experience in radio frequency induced ignition risk assessment for comah/dsear compliance
Is your site within 30 km of a radio, TV or radar transmitter? If so, radio frequency induced ignition could pose a hazard to the assets on your site. In order to comply with the Dangerous Substance and explosive Atmosphere regulations (DSEAR), companies handling substances capable of creating explosive atmospheres are required to carry out a formal risk assessment. This must consider the extent of foreseeable explosive atmospheres within and external to the process, and ensure that suitable equipment is installed to control all potential ignition sources. one potential ignition source arises from radio-frequency radiation, often identified during the preparation/review of company COMAH (Control of Major Accident Hazards Regulations) safety reports. The radio-frequency environment is becoming increasingly severe, with the proliferation of transmitting sources, increased transmitter powers and the exploitation of new techniques. Sources for radio-frequency transmissions include radio and television broadcasts, radio communications, mobile phone communications, radar and navigational equipment. These transmission sources can affect an area of up to 30 km and have the potential to impinge on most operating sites. Electromagnetic waves produced by radio-frequency transmitters will induce electric currents and voltages in any conducting structure on which they impinge. The magnitude of the induced current and voltage depends upon the combination of the shape and size of the structure, the wavelength and the strength of the transmitted signal. A spark may occur if the induced voltage and currents are sufficiently large. The latest standard for the assessment of inadvertent ignition of flammable atmospheres by radio-frequency radiation, Bristish Standard BS 6656:2002, provides detailed guidance, but currently many companies are unclear about the level of risk posed by radio-frequency induced ignition.
Practical experience in radio frequency induced ignition risk assessment for comah/dsear compliance
Is your site within 30 km of a radio, TV or radar transmitter? If so, radio frequency induced ignition could pose a hazard to the assets on your site. In order to comply with the Dangerous Substance and explosive Atmosphere regulations (DSEAR), companies handling substances capable of creating explosive atmospheres are required to carry out a formal risk assessment. This must consider the extent of foreseeable explosive atmospheres within and external to the process, and ensure that suitable equipment is installed to control all potential ignition sources. one potential ignition source arises from radio-frequency radiation, often identified during the preparation/review of company COMAH (Control of Major Accident Hazards Regulations) safety reports. The radio-frequency environment is becoming increasingly severe, with the proliferation of transmitting sources, increased transmitter powers and the exploitation of new techniques. Sources for radio-frequency transmissions include radio and television broadcasts, radio communications, mobile phone communications, radar and navigational equipment. These transmission sources can affect an area of up to 30 km and have the potential to impinge on most operating sites. Electromagnetic waves produced by radio-frequency transmitters will induce electric currents and voltages in any conducting structure on which they impinge. The magnitude of the induced current and voltage depends upon the combination of the shape and size of the structure, the wavelength and the strength of the transmitted signal. A spark may occur if the induced voltage and currents are sufficiently large. The latest standard for the assessment of inadvertent ignition of flammable atmospheres by radio-frequency radiation, Bristish Standard BS 6656:2002, provides detailed guidance, but currently many companies are unclear about the level of risk posed by radio-frequency induced ignition.
Practical experience in radio frequency induced ignition risk assessment for comah/dsear compliance
Bradby, Ian R. (author)
2008
15 Seiten, 10 Bilder, 1 Tabelle, 1 Quelle
Conference paper
Storage medium
English
British Library Online Contents | 2000
NEWS - Final draft guidance on COMAH
Online Contents | 1999
Control of Major Accident Hazard [COMAH] Regulations 1999
| British Library Online Contents | 1999
The burden of proof what the regulators expect of COMAH safety reports
| British Library Online Contents | 2000
Determining practical quantiation limits for discharge permit compliance assessment
| British Library Conference Proceedings | 1995