As it should be! We are talking about people's lives at risk. To be certified, intrinsically safe lights will typically be battery-powered and have such low voltage traveling through the circuit that a spark arcing through the air could not happen. A good example to think about is a specially designed battery-powered flashlight. So as you can see, the terms explosion-proof and intrinsically safe are similar in their goal, but very different in their application.
You will need to know the Class, Division and Group or Zone as it becomes more widespread applicable to the location and use a device specifically approved for those criteria. Similarly, don't use a Zone 1 classified light in a Zone 0 location. More on this in a later post. There are some common misconceptions about explosion-proof lights that are worth addressing. For example, many people assume that an explosion-proof light works by blocking out all gases or vapours so that they can never come in contact with live electrical power, even if the light were to break.
That is typically NOT the case. Explosion-proof lights do not have to be "air tight" to perform their function. They are ideal in industrial spaces that require a tested light that ensures that it will not be a point of ignition When you're in a potentially hazardous environment, using an appropriately approved flashlight is vital.
Hazardous Area Electrical Guidelines. Class I. Classifications Division 1 Hazard Likely. Division 2 Hazard Not Likely. Class II. Class III. Username or Email Address. Remember Me. If we can not offer free shipping you will see the shipping price clearly in your shopping cart prior to order. Please reference our shipping policy for details. Security is not only a commitment to the wellfare of our company, but more importanttly a commitment to ensuring that our customer's identity senstive information and privacy are always protected.
We will match any advertised price on new merchandise available through another authorized U. So what makes a flashlight intrinsically safe? Please see lights for specific approvals and consult with your Safety Department for appropriate lighting choices. In short, safety rated flashlights are designed to not be a source of ignition in potentially hazardous environments.
These flashlights are generally tested by a certification company such as Underwriters Labs UL. The rating system is composed of Classes, Divisions, Groups and Temperature codes. Classes identify the type of hazardous material present in the air. Divisions designate the probability that an ignitable concentration of that hazardous material is present.
Groups identify what elements are present that have the potential to cause an explosion. Temperature codes list the maximum surface area temperature of the equipment. Divisions designate the probability that an explosion will occur. When a hazardous material is expected to be present in everyday operations, the condition is called normal Division 1.
When a hazardous material will be present only through an accidental rupture or faulty operation, that condition is call abnormal Division 2. Groups A-D apply to Class I locations.
Ignitable gases or combustible dusts can ignite when they come into contact with a hot surface. Temperature codes indicate the maximum surface area temperature of the equipment that can come into contact with the hazardous materials. There are two kinds of hazardous conditions : Division 1 — normal, and Division 2 — abnormal. There is the nature of the hazardous material.
0コメント