1 Jan Buy API 14FZ: RECOMMENDED PRACTICE FOR DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR. 7 фев API RP 14FZ Recommended Practice for Design and Installation of Electrical Systems for Fixed and Floating Offshore Petroleum. Note: The protection techniques listed in API RP 14F and 14FZ are listed below for Divisions and Zones. Class/Division system. Intrinsically Safe Systems.
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In Class I, Division 1 locations, motors shall be either explosion-proof or approved to meet one of three specific methods of construction a special ventilation system complying with NFPAinert gas-filled, or a special submerged unit—as described by NEC Article a.
The presence of an explosive atmosphere is reduced therefore. Fewer field-installed sealing fittings reduce the chance for installation errors, enhancing safety.
Equipment that is listed for a Zone 1 location is permitted in a Zone 1 or Zone 2 location of the same gas or vapor. Therefore, temperature ratings have been produced to ensure that any gas release will not come into contact with a hot surface that could be near an autoignition temperature AIT. Therefore devices will have T Ratings to meet the requirements of the area and gas that could be released.
Zone 2 Equipment must be certified as meeting the requirements of the area this could be a number of different protection concepts. This may result in more cost effective installations or equipment that is more easily maintained. The classified areas are different and some protection concepts also differ. Therefore, temperature rating and group must be the same or higher protection! Inch, size or larger conduit run entering an enclosure that contains splices, taps, or terminals.
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Cables installed in Division 1 locations require a seal at all terminations. Registration Forgot your password? This RP emphasizes safe practices for hazardous classified locations on offshore petroleum facilities but does not include guidelines for classification of areas; for guidance on the classification of areas refer to API Marine shipboard cable, marine applications.
Share buttons are a little bit lower. We think you have liked this presentation. This can reduce the initial capital expenditures, enhanced safety and ensure facilities are more economically maintained.
Can you locate how this works, maintains safe operation and record? For use on land and marine bulkhead and deck applications. Zone 1- Likely or may exist frequently.
Where as 14F refers to the Class 1, Division 1, Division 2 as previously mentioned. The motor design and construction should be suitable for both the load application and environmental conditions.
This course covers the minimum requirements for installations within hazardous areas. C – Sparking equipment in which the contacts are suitably protected other than by restricted breathing. Forside Nettbutikk Produktkatalogen Produktpresentasjon. They must be correctly installed as per manufactures information and maintain as per the manufactures instructions.
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tp Much of the equipment approved for Zone 1 and Zone 2 uses plastics versus metalsreducing corrosion, which can result in reducing maintenance costs and enhancing safety. They should always be installed in the unclassified area or be provided with an alternative means of protectionpurged or mounted inside and explosion proof box.
Resistant to Hydrocarbons and other chemicals.
Applicable gas classification group s eg. They accomplish this by maintaining a permanent seal. Therefore, an accumulation of an explosive atmosphere could develop inside the enclosure. What is Nonincendive equipment? As tested by the NFPA Metal-clad cable for hazardous locations as defined in UL MI cable: Same as shipboard cable, marine. This table refers to the maximum skin temperature of the equipment. Explosion proof equipment may not provide protection against the ingress of liquids or solids therefore, breathers and drains may be required.
If Associate Apparatus is placed in the classified area then it must have another method of protection. Regulators such as U.
A – Non-sparking equipment. You are permitted to work on an I. The correct type of threads shall be installed or listed or labeled threaded adaptors suitable for the location.
API RP 14FZ
Disconnect switches in general purpose enclosures should not be used offshore in classified locations; this is a departure from the NEC. S system are Safety and Convenience. This ensures that the gas or vapor located above the arcing or sparking parts or the gas or vapor located exterior to the enclosure cannot be ignited by the electrical arcing parts within the oil.
Also, since the most hazardous locations Zone 0 locations are identified, such locations can be avoided for the installation of most electrical equipment. Why is it NOT acceptable? They could have high energy and I. Occupational Safety and Health Administration OSHA requires that products, devices, assemblies, or systems used in the workplace be “approved” i.
The intrinsically safe associated apparatus providing this energy limitation has a further identification marking on the equipment that indicates the type of intrinsic safety.
Applicable gas classification group s.