how to install hazardous course

What is the Hazard-Course 2?

In this GLOMACS training course, you will learn how to: Identify and Quantify the Hazardous Areas. Select appropriate Electrical Equipment and Instruments for those areas. Recognise the Different Methods of Protection, e.g. Ex d or Ex ia and how they work. Install, Inspect and Maintain the Certified Equipment.

What is the hazardous-course mod?

Installation guide for hazardous areas This installation guide should not be used as the controlling document for the installation of devices in a hazardous area. This Any installation of devices within a hazardous area as defined in the NEC BE in accordance with that device's CONTROL DRAWING and local ordinances. guide is NOT A CONTROL DRAWING.

What is hazardous areas certification?

Mar 15, 2012 · The Hazardous-Course 2 is a spoof of the original "Hazard-Course" from Half-Life, which resembles the first player training levels. In contrary to this, the Hazardous-Course, as it's name let's suggest, is much more dangerous. Although it's a mod for a first person shooter, the player can only wield a weapon at the designated target range.

How to prepare hazardous source list for process engineers?

Mar 03, 2012 · “The Hazardous-Course 2 is a spoof of the original “Hazard-Course” from Half-Life, which resembles the first player training levels. In contrary to this, the Hazardous-Course, as it’s name let’s suggest, is much more dangerous.

What is intrinsic safety?

The concept of intrinsic safety in wiring recognizes that a sufficient concentration of ignitable, flammable or combustible materials will be present, with air or another oxidizer, to represent a fire or explosion hazard. These mixtures could easily be ignited by a match or other open flame, or by a high-energy spark. The wiring used in areas where these mixtures are present can be implemented in a manner which absolutely precludes any possibility of igniting these mixtures. That is the essence of intrinsic safety. Intrinsically safe wiring will never have enough energy available within the defined hazardous area to ignite any explosive or combustible mixture of gasses, dusts, or metals.

What are the four basic principles of electrical safety?

There are four basic principles to provide protection for hazardous area electrical circuit wiring: (1) prevent arcs, sparks and hot surfaces; (2) prevent the combustible material from entering the space; (3) contain any explosion of combustible material within the electric enclosure; or (4) limit the energy available for sparks and hot surfaces . Methods of protection and their permitted use areas are summarized in table 2.2.1.

When is pressurization used?

When installations are not explosion proof or intrinsically safe, pressurization is often used to maintain the classified area safety. Wiring and enclosures are protected using a positive air pressure maintained within the enclosure, junction boxes and conduit.

What are the elements of the fire triangle?

The fire triangle is a tool to illustrate the three elements which must be present to have a fire or explosion: fuel, oxidizer, and energy. Fuel and oxidizer must be present in a concentration appropriate to form a combustible mixture. The ignition source must supply enough energy to initiate combustion. If any one of the elements of the triangle is not present in sufficient amount, then combustion cannot occur.

What is the Fire Triangle?

The concepts embodied in the fire triangle have been codified by various organizations. In the United States, one of the earliest organizations established was the predecessor of FM Global. In 1835 Zachariah Allen, a Rhode Island native and prominent textile mill owner, set out to reduce the insurance premium on his Rhode Island mill by making property improvements that would minimize the chance of fire loss.1 Although widely accepted today, the concept of loss control was virtually unheard of at the time; but to Allen, a proactive approach to preventing losses before they occurred made good economic sense. As Allen predicted, proper fire prevention methods, monitored by regular fire inspections for mill policyholders, resulted in fewer losses.

What is an explosion proof transducer?

The principle behind explosion-proof transducers and wiring is that if the ignition of flammable material that occurs within the transducer or wiring it will be contained. The hot gasses and flames will not be allowed to escape into the hazardous area and further propagate the fire or explosion. All circuit wiring is run in conduit and junction boxes approved for explosion-proof installation.

What is the NEC article 504?

The NEC® Article 504 controls the wiring of intrinsically safe circuits. It generally requires that intrinsically safe circuits be physically separated from nonintrinsically safe circuits. Conductors and cables of intrinsically safe circuits not in raceways or cable trays shall be separated at least 50 mm (2 inches) and secured from conductors and cables of any non-intrinsically safe circuits. Conductors of intrinsically safe circuits can only be placed in the same raceway or cable tray with non-intrinsically safe circuits when the intrinsically safe circuits are separated by a distance of 50 mm (2 inches) or by a grounded metal partition or approved insulating partition. The 50 mm separation of circuits also applies to the wiring within enclosures.

What is intrinsic safety in wiring?

The concept of intrinsic safety in wiring recognizes that ignitable, flammable or combustible materials will be present with air, or other oxidizer, in sufficient quantity and ratio so as to represent a fire or explosion hazard. These mixtures could easily be ignited by a match or other open flame, but just as easily could be ignited by a high-energy spark. Consequently, the wiring used in areas where these mixtures are present can be implemented in a fashion to absolutely preclude any possibility of igniting these mixtures. That is the essence of intrinsic safety!

When is pressurization used?

When installations are not explosion proof or intrinsically safe, pressurization is often used to maintain the classified area safety. Wiring and enclosures are protected using a positive air pressure maintained within the enclosure, junction boxes and conduit.

How many different electrical codes were there in 1895?

By the end of 1895, there were five different recognized standards in the United States that addressed the safe use of electrical equipment. Five different codes meant five different sets of rules for making an electrical installation. This, of course, created significant confusion and controversy. Something had to be done to produce a national code on a national scale.

What is the fire triangle?

It need not be a spark or a flame. Temperature alone can supply the energy of initiation. The fire triangle is a tool to illustrate that all three must be present to have a fire or explosion. If any one of the elements of the triangle is not present in sufficient amount, then combustion cannot occur.

What is intrinsically safe?

The National Electric Code® defines an intrinsically safe circuit as a circuit in which any spark or thermal effect is incapable of causing ignition of a mixture of flammable or combustible material in air under prescribed test conditions. It also defines an intrinsically safe system as one that is an assembly of interconnected intrinsically safe apparatus, associated apparatus, and interconnecting cables in that those parts of the system that may be used in hazardous (classified) locations are intrinsically safe circuits3. Intrinsically safe apparatus have been tested to meet these requirements. The testing of the apparatus is designed to verify the operating parameters of the device and set the limits for its use in hazardous areas.

What is an explosion proof transducer?

The principle behind explosion-proof transducers and wiring is that any ignition of flammable material that occurs within the transducer or wiring will be contained. The hot gasses and flames will not be allowed to escape into the hazardous area and further propagate the fire or explosion. All circuit wiring is run in conduit and junction boxes approved for explosion-proof installation.

What is hermetic seal?

In the United States, section 500 of the NEC® specifically cites hermetic sealing as a protective method allowed for Class I, Division 2 areas. Hermetically sealed accelerometers can be installed in Class I, Division 2 locations.