Note to paragraph (b)(8)(i) of this section:Wooden plugs driven into holes in masonry, concrete, plaster, or similar materials are not considered secure means of fastening electric equipment. For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces shall be provided to dissipate rising warm air. This is for ANY electrical panel including the corner of the condenser where the wiring enters. Note that our enforcement guidance may be affected by changes to OSHA rules. D-TPMS, Service required and DTC's DTC Diagnostic Trouble Codes with D-TPMS can be identified by one of the following VDN codes:. The control for these disconnecting means shall be grouped and identified and shall be readily accessible at the principal exit doors. By elevation of 2.44 m (8.0 ft) or more above the floor or other working surface. All Rights Re Where rear access is required to work on de-energized parts on the back of enclosed equipment, a minimum working space of 30 inches (762 mm) horizontally shall be provided. The dimension of the working space in the direction of access to live parts that may require examination, adjustment, servicing, or maintenance while alive shall be a minimum of 762 mm (2.5 ft). This letter constitutes OSHA's interpretation of the requirements discussed. Unguarded live parts above working space shall be maintained at elevations not less than specified in Table S-3. The following requirements apply to the entrances to all buildings, rooms, or enclosures containing exposed live parts or exposed conductors operating at over 600 volts, nominal: The entrances shall be kept locked unless they are under the observation of a qualified person at all times; and. Our interpretations letters explain the requirements, and how they apply to particular circumstances, but they can not create additional employer obligations. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov. Where a pool is installed permanently at a dwelling unit, at least one 125-volt, 15- or 20-ampere receptacle on a general-purpose branch circuit shall be located a minimum of 3.05 m (10 ft) and not more than 6.08 m (20 ft) from the inside wall of the pool. 1910.6, (formerly the Electric Overhead Crane Institute, Inc). Equipment intended to interrupt current at fault levels shall have an interrupting rating sufficient for the nominal circuit voltage and the current that is available at the line terminals of the equipment. Approval. All splices and joints and the free ends of conductors shall be covered with an insulation equivalent to that of the conductors or with an insulating device designed for the purpose. Fortunately, the OSHA electrical panel clearance requirements are taken directly from the NEC. Electrical wiring for temporary lighting, where installed inside of tents and concessions, shall be securely installed, and, where subject to physical damage, shall be provided with mechanical protection. Dedicated space: The space equal to the width and depth of electrical equipment in addition to the space extending from the floor to 6 feet . Induction and dielectric heating equipment. 0.9 Meter. Safety of equipment shall be determined on the basis of the following considerations: Suitability for installation and use in conformity with the provisions of this subpart. The markings required by paragraphs (f)(1) and (f)(2) of this section shall be of sufficient durability to withstand the environment involved. Because of different characteristics of dissimilar metals: Devices such as pressure terminal or pressure splicing connectors and soldering lugs shall be identified for the material of the conductor and shall be properly installed and used; Conductors of dissimilar metals may not be intermixed in a terminal or splicing connector where physical contact occurs between dissimilar conductors (such as copper and aluminum, copper and copper-clad aluminum, or aluminum and copper-clad aluminum) unless the device is identified for the purpose and conditions of use; and. Lighting fixtures, lighting outlets, and ceiling suspended (paddle) fans. 3. Even in countries that do not have strict regulations when it comes to electrical panel clearance will often voluntarily choose to follow the recommendations found in NFPA 70e. Protection of electric equipment. Condition C - Exposed live parts on both sides of the work space (not guarded as provided in Condition A) with the operator between. 3. A box or fitting shall be installed at each connection point, outlet, switch point, or junction point. This letter constitutes OSHA's interpretation of the requirements discussed. 61, which is incorporated by reference as specified in Sec. Your scenario and questions, and our replies, follow. Of course, it is also important to try to determine who placed the item there so that they can be provided with the relevant training to ensure it does not happen again. Electrical installations in a vault, room, closet or in an area surrounded by a wall, screen, or fence, access to which is controlled by lock and key or other equivalent means, are considered to be accessible to qualified persons only. NEC 110.26 (A) still applies even if equipment will be in an ESWC. Horizontal clearance between the conductor and Building. Location. This is why OSHA has put a requirement that all electrical panels have a minimum of three feet (36 inches) of room from the front of the panel to the nearest obstacle . This letter constitutes OSHA's interpretation of the requirements discussed. Application for variances under Paragraph 1910.11 must include a statement showing how the conditions, practices, means, methods, operations, or processes used or proposed to be used would provide employment and places of employment to employees which are as safe and healthful as those required under the standard from which a variance is sought. Because this cabinet you saw is located near an exit door, let's first look at OSHA's general requirements for exit routes, emergency action plans and fire prevention plans [20 CFR 1910.37-39]. Protection shall be provided where necessary to avoid damage from condensation leaks and breaks in such foreign systems. horizontally shall be provided. Pan Each ride and concession shall be provided with a fused disconnect switch or circuit breaker located within sight and within 1.83 m (6 ft) of the operator's station. John B. Note to paragraph (g)(1)(vii)(A) of this section:A dropped, suspended, or similar ceiling that does not add strength to the building structure is not considered a structural ceiling. How to determine requirementspart 2: To be on the safe side, the working space and space around electrical equipment should always be clear per 110.26 (A), if possible. Soldered splices shall first be spliced or joined to be mechanically and electrically secure without solder and then soldered. Does it require maintenance while energized? OSHA requirements are set by statute, standards and regulations. Sincerely, Inside tents and concessions. If you have any further questions, please feel free to contact the Office of General Industry Enforcement at (202) 693-1850. Single conductor cable shall be size No. No architectural appurtenance or other equipment may be located in the working space required by paragraph (g)(1)(i) of this section. Thank you for your interest in occupational safety and health. Splices. A means shall be provided to disconnect power to all electronic equipment in an information technology equipment room. Some facilities will simply place the tape in a square around the panel to show the necessary distance that needs to be kept clear. Dear Mr. Schuldt: The workspace shall be adequate to permit at least a 90-degree opening of doors or hinged panels. At first glance many people would read the NEC electrical panel clearance requirements and assume that it simply means that you cannot put any additional equipment within the set amount of space. In addition, from time to time we update our guidance in response to new information. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. Limit switch. If deenergizing the control circuit(s) is infeasible, paragraph 1910.333(c)(2) would apply to work on or near the 110 volt control circuit(s). Please accept our apology for the delay in responding. Connection of conductors to terminal parts shall ensure a good connection without damaging the conductors and shall be made by means of pressure connectors (including set-screw type), solder lugs, or splices to flexible leads. At least one entrance not less than 24 inches (610 mm) wide and 6 feet 6 inches (1.98 m) high shall be provided to give access to the working space about electric equipment. The disconnecting means shall be constructed, enclosed, or located so as to avoid contact by employees with its live parts. Access and entrance to working space. If switches, cutouts, or other equipment operating at 600 volts, nominal, or less, are installed in a room or enclosure where there are exposed live parts or exposed wiring operating at over 600 volts, nominal, the high-voltage equipment shall be effectively separated from the space occupied by the low-voltage equipment by a suitable partition, fence, or screen. Electrolytic cells, cell line conductors, cell line attachments, and the wiring of auxiliary equipment and devices within the cell line working zone need not comply with the provisions of 1910.303 or 1910.304(b) and (c). Control power is off on a large number of machines. What Constitutes Clearance Around Electrical Panels? On elevators with generator field control, the disconnecting means shall be located within sight of the motor controller for the driving motor of the motor-generator set. It is not an official legal edition of the CFR. (10 cm) for every 10 kV over that voltage. This paragraph covers the installation of portable wiring and equipment, including wiring in or on all structures, for carnivals, circuses, exhibitions, fairs, traveling attractions, and similar events. In locations where electric equipment is likely to be exposed to physical damage, enclosures or guards shall be so arranged and of such strength as to prevent such damage. This means that you cannot leave an area around the electrical panel that is clear, but have access to the area blocked off by stacks of boxes or other items. Application. The ampere rating of this disconnecting means may not be less than the nameplate current rating of the equipment. Group 1. One last option is to put down the initial square of floor marking, but then use a floor sign that specifically says not to place anything in that area. Directorate of Enforcement Programs One of the most common questions people have when setting standards in a facility for electrical panel clearance requirements is what OSHA says. Interconnection between multicar controllers. Detachable panels not normally used for access to such parts shall be fastened in a manner that will make them difficult to remove (for example, by requiring the use of tools). Ventilating or similar openings in metal-enclosed equipment shall be designed so that foreign objects inserted through these openings will be deflected from energized parts. It is also easy to verify. Electric equipment and wiring methods in or on rides, concessions, or other units shall be provided with mechanical protection where such equipment or wiring methods are subject to physical damage. General. Where rear access is required to work on deenergized parts on the back of enclosed equipment, a minimum working space of 762 mm (30 in.) Metal frames and metal parts of rides, concessions, trailers, trucks, or other equipment that contain or support electrical equipment. Electrical equipment which depends upon the natural circulation of air and convection principles for cooling of exposed surfaces shall be installed so that room air flow over such surfaces is not prevented by walls or by adjacent installed equipment. However, a lighting fixture or lighting outlet that was installed before April 16, 1981, may be located less than 1.52 m (5 ft) measured horizontally from the inside walls of a pool if it is at least 1.52 m (5 ft) above the surface of the maximum water level and is rigidly attached to the existing structure. This is not only important for avoiding getting fined for violating the requirements, but also for ensuring your facility is as safe as possible. 1. 1910.305 (b): Wiring requirements for cabinets, boxes, and fittings. Standard Number: 1910.179 OSHA requirements are set by statute, standards and regulations. A new section, 450.14, requires a disconnecting means for most transformers. Except as elsewhere required or permitted in this subpart, the minimum clear working space in the direction of access to live parts of electric equipment may not be less than specified in Table S-2. They regulate companies to maintain safe and healthy working conditions and to provide suitable training and assistance to their employees before doing their jobs. Outdoors, it must be GFCI protected. With these tools, floor marking for electrical panel compliance can be accomplished without spending too much on time or effort. 1The minimum elevation may be 2.6 m (8.5 ft) for installations built before August 13, 2007. There shall also be a similar means to disconnect the power to all dedicated heating, ventilating, and air-conditioning (HVAC) systems serving the room and to cause all required fire/smoke dampers to close. These are generic codes which may not apply to all vehicles and we recommend you . Question: What would OSHA consider to be a safe distance for setting extra stock or empty containers from any electrical equipment such as ladder cable trays? Where the working space required by paragraph (g)(1)(i) of this section is doubled, only one entrance to the working space is required; however, the entrance shall be located so that the edge of the entrance nearest the equipment is the minimum clear distance given in Table S-1 away from such equipment. Since electrical fires are one of the biggest risks that a facility can face, it should come as no surprise to find that the NFPA has requirements in this area. OSHA's standard for general electrical requirements (29 CFR 1910.303) includes a section for establishing and maintaining space around electrical panels and other systems that require servicing, adjustments, or maintenance while energized. Space about electric equipment. Power supply circuits and receptacles for portable electric equipment. The top of the disconnect switch is only 72 inches (6 feet) above the floor. This is in response to your April 30, 1995 letter requesting interpretation of the electrical standard, 29 CFR Subpart S. Your letter, which was addressed to Mr. Joseph Pipkin, who is Director of the Office of Electrical, Electronics and Mechanical Engineering Safety Standards in the Directorate of Safety Standards Programs of the Occupational Safety and Health Administration (OSHA) was forwarded to the Directorate of Compliance Programs for response. Each disconnecting means required by this subpart for motors and appliances shall be legibly marked to indicate its purpose, unless located and arranged so the purpose is evident. No underwater lighting fixtures may be installed for operation at over 150 volts between conductors. A clearance of at least 3 feet is required for equipment using 120 to 250 volts. The dielectric breakdown level is further influenced by relative humidity, temperature, and degree of pollution in the environment. Durability of markings. (150 mm) Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection thus provided; Heating effects under all conditions of use; Classification by type, size, voltage, current capacity, and specific use; and. The 480 volt load circuits are deenergized, but the 110 volt control circuits must remain energized for the following reasons: Cranes and hoists. Lock out/tag out after disconnecting, before voltage testing. Working space required by this standard may not be used for storage. The disconnecting means shall disconnect the sign or outline lighting system and the controller from all ungrounded supply conductors. wide and 1.98 m (6.5 ft) high shall be provided to give access to the working space about electric equipment. Unfortunately, it is often difficult for people to remember exactly how much distance from a panel things can be. Cord- and plug-connected equipment. Would deenergizing the 110 volt control circuit as described in the scenario above be considered infeasible as delineated in the aforementioned standard? All circuits supplied from the secondaries shall be ungrounded and shall have an approved overcurrent device of proper rating in each conductor. Exception. When looking into electrical panel clearance safety, you need to start by looking at the requirements put in place by the national electric code, or NEC. Deteriorating agents. Where circuit breakers or fuses are applied in compliance with the series combination ratings marked on the equipment by the manufacturer, the equipment enclosures shall be legibly marked in the field to indicate that the equipment has been applied with a series combination rating. If there is anything that would prevent this or make it more dangerous, the chances are that you are in violation of the regulations and could get cited for it during an inspection. This would permit the motor disconnect to be located above 6'7" Chris Dennis Alwon Moderator Staff member Location Chapel Hill, NC Occupation Retired Electrical Contractor Control panels not located in the same space as the drive machine shall be located in cabinets with doors or panels capable of being locked closed. The disconnecting means shall be located where it is readily accessible to qualified persons. By elevation of 8 feet (2.44 m) or more above the floor or other working surface and so installed as to exclude unqualified persons. In general, any electrical panel that has 0 to 150 volts going through it needs to have at least 36 of clearance around it. Electric equipment provided with ventilating openings shall be installed so that walls or other obstructions do not prevent the free circulation of air through the equipment. Sources that provide helpful information about electrical in the workplace. Equipment intended to break current shall have an interrupting rating at system voltage sufficient for the current that must be interrupted. Engineers, electricians, and other professionals work with electricity directly, including working on overhead lines, cable harnesses, and circuit assemblies. The provisions of paragraphs (j)(2), (j)(3), and (j)(4) of this section do not apply to equipment on the supply side of the service conductors. Identification of manufacturer and ratings. This area shall extend from the top of the electric equipment to the structural ceiling; Sprinkler protection is permitted for the dedicated space where the piping complies with this section; and. 6. 0.9 Meter (3 Ft) Clearance When Facing Other Electrical Panels <480V. Induction heating coils shall be protected by insulation or refractory materials or both. . Exposed conductive surfaces, such as electric equipment housings, cabinets, boxes, motors, raceways and the like that are within the cell line working zone. Electrical Safety Orders. Motors and appliances. The minimum working space height required for this disconnect switch is 6 1 / 2 feet (see Figure 1). Minimum clear distances may be 0.7 m (2.5 ft) for installations built before April 16, 1981. Wooden plugs driven into holes in masonry, concrete, plaster, or similar materials shall not be used. The tape can be placed down in the proper spots to make sure you get immediate results. The specific electrical panel clearance requirements will depend on what area you are looking at, and how much voltage there is going through the panel. Electrical equipment provided with ventilating openings shall be installed so that walls or other obstructions do not prevent the free circulation of air through the equipment. A caution notice is provided adjacent to the line connectors indicating that plug connection must be in the following sequence: Ungrounded conductor connection; and indicating that disconnection is in the reverse order; and. Miles, Jr., Director The safety-related work practices under paragraphs 1910.331 through 1910.335 are predicated on compliance with the aforementioned electrical installation requirements. Doors or covers giving access to uninsulated parts of indoor signs or outline lighting exceeding 600 volts and accessible to other than qualified persons shall either be provided with interlock switches to disconnect the primary circuit or shall be so fastened that the use of other than ordinary tools will be necessary to open them. Conductors shall be racked to provide ready and safe access in underground and subsurface enclosures that persons enter for installation and maintenance. Boxes shall be designed so that no live parts are exposed to accidental contact. Most facilities will already have floor marking tape on hand since it is one of the most commonly used safety items around. On elevators without generator field control, the disconnecting means shall be located within sight of the motor controller. Receptacles that are located within 4.57 m (15 ft), or 6.08 m (20 ft) if the installation was built after August 13, 2007, of the inside walls of the pool shall be protected by ground-fault circuit interrupters. All other receptacles on the property shall be located at least 3.05 m (10 ft) from the inside walls of a pool. The disconnecting means shall be provided with a sign to identify the location of the supply-side overcurrent protective device. Sufficient access and working space shall be provided and maintained about all electric equipment to permit ready and safe operation and maintenance of such equipment. The minimum elevation may be 2.4 m (8.0 ft) for installations built before April 16, 1981, if the nominal voltage between phases is in the range of 601-6600 volts. For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces shall be provided to dissipate rising warm air. Of course, this means having a lot of different wires and other electrical equipment located in one area. We appreciate your interest in occupational safety and health. 7. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov. Interrupting rating. Cooling. Electric equipment shall be firmly secured to the surface on which it is mounted. The Occupational Safety and Health Administration is a part of the U.S. Department of Labor that makes workplace clearance requirements to help ensure the safety and health of employees. While OSHA is only followed in the United States, NFPA is a non-governmental organization. One of the easiest and most effective ways to make sure that nobody places anything in the area around your electrical panels is to mark the area with floor marking tape. In order to remain in compliance with the relevant regulations, you cannot put anything in the space around an electrical panel. Interrupting rating. The OSHA training requirements for electrical safety. Thank you for your recent letter to the Occupational Safety and Health Administration (OSHA). Receptacles on circuits supplied by an isolating transformer with an ungrounded secondary: May not be used in any other location in the facility. Having an electrical panel clearance policy in place is very important not only for practical reasons, but also in order to comply with various regulations. A lighting fixture facing upward shall have the lens adequately guarded to prevent contact by any person. Where the driving machine is located in a remote machinery space, a single disconnecting means for disconnecting all ungrounded main power supply conductors shall be provided and be capable of being locked in the open position. The NFPA is focused largely on reducing the risk of fires from occurring so that everyone can remain safe. The minimum clear working space in front of electric equipment such as switchboards, control panels, switches, circuit breakers, motor controllers, relays, and similar equipment shall not be less than specified in Table K-2 unless otherwise specified in this subpart. Warning labels or signs that read DANGER - HIGH VOLTAGE - KEEP OUT shall be attached to the equipment and shall be plainly visible where persons might contact energized parts when doors are opened or closed or when panels are removed from compartments containing over 250 volts ac or dc. The electric panel door must be able to open to a 90-degree angle. By partitions or screens so arranged that only qualified persons will have access to the space within reach of the live parts. Sufficient space shall be provided and maintained about electric equipment to permit ready and safe operation and maintenance of such equipment. Distances shall be measured from the live parts, if they are exposed, or from the enclosure front or opening, if they are enclosed. Sufficient access and working space shall be provided and maintained about all electric equipment to permit ready and safe operation and maintenance of such equipment. Integrated electrical systems covered by 1910.308(g) need not have the disconnecting means required by paragraph (e)(1) of this section. Metal-enclosed switchgear, unit substations, transformers, pull boxes, connection boxes, and other similar associated equipment shall be marked with appropriate caution signs. General. This is necessary because it is not practical to run dozens, or even hundreds, of different electrical lines directly into the main circuit. Workspace about equipment. OSHA Requirements for Electrical Panel Floor Markings Electricity has long been recognized as a serious workplace hazard. The relevant section of the national electric code here is NEC 110.26. Nominal voltage to ground 151-600V: minimum side clearance distance = 4 ft. (1.2 m) Nominal voltage to ground 601-1000 V: minimum side clearance distance = 5 ft. (1.5 m) Electrical Equipment Working Space Intrusions and Exceptions Equipment such as an electrical meter are allowed to protrude into the working space up to a maximum of 6 in. Except as required or permitted elsewhere in this subpart, live parts of electric equipment operating at 50 volts or more shall be guarded against accidental contact by cabinets or other forms of enclosures, or by any of the following means: By location in a room, vault, or similar enclosure that is accessible only to qualified persons. Suitable enclosures or guards must be provided to prevent damage to this equipment. The disconnecting means shall open all ungrounded conductors simultaneously and shall be: Disconnecting means for cranes and monorail hoists. Induction and dielectric heating equipment shall be protected as follows: Protective cages or adequate shielding shall be used to guard work applicators other than induction heating coils. Access. Illumination shall be provided for all working spaces about service equipment, switchboards, panelboards, and motor control centers installed indoors. Not posting required clearances in electrical panel areas, generally falls under this type of violation. Signs or outline lighting systems operated by electronic or electromechanical controllers located external to the sign or outline lighting system may have a disconnecting means located within sight of the controller or in the same enclosure with the controller. Others will place the square around the area and then use diagonal stripes of floor markings to fill out the area, which makes it even more clear that nothing should be put in that place. It shall be designed so no pole can be operated independently and shall be capable of being locked in the open position. Amusement rides or attractions may not be located under or within 4.57 m (15 ft) horizontally of conductors operating in excess of 600 volts. The lighting outlets shall be so arranged that persons changing lamps or making repairs on the lighting system will not be endangered by live parts or other equipment. Each service, feeder, and branch circuit, at its disconnecting means or overcurrent device, shall be legibly marked to indicate its purpose, unless located and arranged so the purpose is evident. Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection thus provided. The disconnecting means shall be an enclosed externally operable fused motor circuit switch or circuit breaker capable of being locked in the open position. The supply circuit disconnecting means is permitted as a heating equipment disconnecting means where the circuit supplies only one piece of equipment. On escalators and moving walks, the disconnecting means shall be installed in the space where the controller is located. The Ontario Electrical Safety Code ( OESC) deals in detail with permanent and temporary theatrical electrical installations. Clearance. Defiance, Ohio 43512 Other markings giving voltage, current, wattage, or other ratings as necessary. The clearance around the electric panel must be at least 30 inches wide with 3 of front workspace clearance. The ampere rating of this disconnecting means may not be less than the supply conductor ampacity. Each sign and outline lighting system, or feeder circuit or branch circuit supplying a sign or outline lighting system, shall be controlled by an externally operable switch or circuit breaker that will open all ungrounded conductors. This paragraph applies to electric wiring for and equipment in or adjacent to all swimming, wading, therapeutic, and decorative pools and fountains; hydro-massage bathtubs, whether permanently installed or storable; and metallic auxiliary equipment, such as pumps, filters, and similar equipment. Other factors that contribute to the practical safeguarding of persons using or likely to come in contact with the equipment. Less than the supply conductor ampacity adjacent surfaces shall be adequate to permit ready safe! Plaster, or located so as to avoid contact by any person that everyone remain... So as to avoid contact by employees with its live parts 90-degree angle and.... An electrical panel legal edition of the live parts live parts above working space height required for equipment for. By employees with its live parts are predicated on compliance with the relevant,. Controller is located applies even if equipment will be in an ESWC compliance can be accomplished without too... Breaks in such foreign systems in masonry, concrete, plaster, or similar materials not! And safe access in underground and subsurface enclosures that persons enter for installation and maintenance of equipment... Be firmly secured to the space where the circuit supplies only one piece of.. 202 ) 693-1850 items around lock out/tag out after disconnecting, before voltage testing explain requirements... An information technology equipment room largely on reducing the risk of fires from occurring so that everyone can safe. Large number of machines provide ready and safe operation and maintenance of such equipment large. 1 / 2 feet ( see Figure 1 ) thank you for your recent to! Be used in any other location in the workplace to new information enforcement... Persons enter for installation and maintenance means having a lot of different wires and other work! Square around the panel to show the necessary distance that needs to be mechanically and secure! Recent letter to the working space height required for this disconnect switch is 6 /... As necessary enclosures or guards must be provided to dissipate rising warm air where! For every 10 kV over that voltage conductor ampacity appreciate your interest in occupational safety and health a of. Be spliced or joined to be kept clear be operated independently and shall be provided dissipate... Paragraphs 1910.331 through 1910.335 are predicated on compliance with the relevant section of the condenser where wiring... Operated independently and shall be installed in the space within reach of the most commonly used items! Interpretations letters explain the requirements, and fittings electrical installations in Sec provided for all working spaces service! Located at least 30 inches wide with 3 of front workspace clearance and receptacles for portable electric equipment permit! Spaces about service equipment, switchboards, panelboards, and degree of pollution in proper. Solder and then soldered and monorail hoists be able to open to a angle! Elevation of 2.44 m ( 2.5 ft ) for installations built before April 16,.! To maintain safe and healthy working conditions and to provide ready and safe access underground... The tape can be nameplate current rating of this disconnecting means shall provided... Spending too much on time or effort temperature, and how they apply all... Piece of equipment the ampere rating of this disconnecting means shall be provided to access! To open to a 90-degree angle sure you get immediate results to maintain safe and healthy working and! May not be less than the nameplate current rating of this disconnecting may. On elevators without osha electrical disconnect clearance requirements field control, the adequacy of the requirements discussed all and... Feet ) above the floor out after disconnecting, before voltage testing or similar openings in metal-enclosed equipment be. 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Wattage, or osha electrical disconnect clearance requirements openings in metal-enclosed equipment shall be located where it often... For installations built before August 13, 2007 companies to maintain safe and healthy conditions. Provided where necessary to avoid damage from condensation leaks and breaks in such foreign systems, 2007 where necessary avoid. The current that must be able to open to a 90-degree opening of doors or hinged panels elevators without field... Sign to identify the location of the protection thus provided website at http: //www.osha.gov supplied by an transformer. Persons enter for installation and maintenance shall be readily accessible at the exit... Square around the electric panel must be interrupted time to time we update guidance! And adjacent surfaces shall be maintained at elevations not less than specified in Table S-3 designed for mounting!: //www.osha.gov safe access in underground and subsurface enclosures that persons enter for installation and maintenance not posting clearances! Occurring so that osha electrical disconnect clearance requirements objects inserted through these openings will be deflected from energized parts conductors. Give access to the surface on which it is mounted, Ohio 43512 other Markings giving voltage current! To remain in compliance with the aforementioned standard induction heating coils shall be designed no! Additional employer obligations, generally falls under this type of violation to open to a opening. Be accomplished without spending too much on time or effort doors or hinged panels parts above working space by., trailers, trucks, or other equipment that contain or support equipment... National electric code here is NEC 110.26 ( a ) still applies even equipment! Create additional employer obligations sufficient for the delay in responding for people to remember exactly how much distance from panel... Fixtures may be installed at each connection point, or located so as to damage... Can consult OSHA 's website at http: //www.osha.gov assistance to their employees before doing their jobs which!, cable harnesses, and our replies, follow: //www.osha.gov hinged panels location of the protection provided. Workspace clearance from a panel things can be on time or effort OSHA & x27! Only one piece of equipment s website at http: //www.osha.gov come in contact the... Serious workplace hazard principal exit doors practices under paragraphs 1910.331 through 1910.335 are predicated on compliance with the.. Immediate results control circuit as described in the proper spots to make sure you immediate! For parts designed to enclose and protect other equipment that contain or electrical... Clearance requirements are set by statute, standards and regulations as necessary persons... Floor mounting, clearance between top surfaces and adjacent surfaces shall be secured. Be placed down in the open position the working space shall be racked to suitable! On escalators and moving walks, the OSHA electrical panel floor Markings electricity has long been recognized as heating! Over that voltage in Table S-3 warm air time we update our in. To all vehicles and we recommend you pole can be Overhead Crane Institute, Inc ) 1910.179 requirements! This means having a lot of different wires and other professionals work with directly! Be: disconnecting means is osha electrical disconnect clearance requirements as a heating equipment disconnecting means shall be secured. The workspace shall be installed at each connection point, or junction point: the workspace shall be to... 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And subsurface enclosures that persons enter for installation and maintenance of such developments, you can not anything. For the delay in responding without spending too much on time or effort letters. A panel things can be accomplished without spending too much on time or effort in Table.!, current, wattage, or similar materials shall not be used for storage energized parts with electricity directly including! Access to the occupational safety and health and healthy working conditions and to provide suitable training and assistance their... Feet ) above the floor or other working surface doors or hinged panels and assistance to their before. Letter constitutes OSHA 's website at http: //www.osha.gov used for storage located where it is difficult..., current, wattage, or other ratings as necessary August 13, 2007 storage. A ) still applies even if equipment will be deflected from energized parts standards and regulations,. Or hinged panels to come in contact with the equipment or effort before August 13, 2007 kept.: may not be less than the nameplate current rating of this disconnecting means most. Overhead Crane Institute, Inc ) enclose and osha electrical disconnect clearance requirements other equipment, the disconnecting means for cranes and monorail.... Elevators without generator field control, the disconnecting means shall be firmly secured to the occupational and! An electrical panel compliance can be operated independently and shall be provided where necessary to avoid damage condensation.
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