Interlock switches shall be connected in such a manner as to remove all power from the applicator when any one of the access doors or panels is open. Flexible cords and cables shall be continuous without splice or tap between boxes or fittings. The working width around the panel must be at least 30 inches. Lighting outlets and points of control. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov. The disconnecting means shall be a switch or circuit breaker, and its rating may not be less than that necessary to accommodate overcurrent protection. 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 for underground box covers that weigh over 45.4 kg (100 lb), doors and covers of enclosures used solely as pull boxes, splice boxes, or junction boxes shall be locked, bolted, or screwed on. 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. 1910.6, (formerly the Electric Overhead Crane Institute, Inc). Connectors and cable connections may not be placed in audience traffic paths or within areas accessible to the public unless guarded. Eight (8) to ten (10) hours of start-up time could be required to re-load processing bins, fluidizing lines and processing transitions. Identification of manufacturer and ratings. This set of code identifies how much clearance is needed around any type of electrical panel based on a number of different factors. Directorate of Enforcement Programs Electrical panels are an essential component in any facility. This Live Performance Safety Guideline highlights sections of the OESC that apply to the temporary and innovative nature of the live performance industry. Motor controller enclosures for escalators or moving walks may be located in the balustrade on the side located away from the moving steps or moving treadway. Reply: Deenergizing the 110 volt control circuit in the above scenario appears to be infeasible as discussed in Note 2 following paragraph 1910.333(a)(1). This fault shall be assumed to be either between two or more of the circuit conductors, or between any circuit conductor and the grounding conductor or enclosing metal raceway. Ungrounded portable electric equipment shall be distinctively marked and shall employ plugs and receptacles of a configuration that prevents connection of this equipment to grounding receptacles and that prevents inadvertent interchange of ungrounded and grounded portable electric equipment. Conductors shall be spliced or joined with splicing devices identified for the use or by brazing, welding, or soldering with a fusible metal or alloy. Working space about electric equipment. Since the top of the panelboard is more than 6 1 / 2 feet above the floor, the minimum working space height required for this panelboard is the height of the panelboard. Insulated wire or insulated busbars operating at not over 300 volts are not considered live parts. 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. The disconnecting means shall be readily accessible and capable of being locked in the open position. Means shall be provided at the operating station to open the power circuit to all motors of the crane or monorail hoist where the disconnecting means is not readily accessible from the crane or monorail hoist operating station. Disconnecting means for runway conductors. A fence may not be less than 2.13 m (7.0 ft) in height or a combination of 1.80 m (6.0 ft) or more of fence fabric and a 305-mm (1-ft) or more extension utilizing three or more strands of barbed wire or equivalent. 1The minimum elevation may be 2.6 m (8.5 ft) for installations built before August 13, 2007. Includes references that provide information related to electrical in construction including OSHA's electrical construction regulations, hazard recogition, possible solutions and additional resources. Obstructed access to panelboards can prevent personnel from shutting down the source of power in the event of an accident. Placed within view of the runway contact conductors. Receptacles on circuits supplied by an isolating transformer with an ungrounded secondary: May not be used in any other location in the facility. A disconnecting means shall be provided in the supply circuit for each arc welder that is not equipped with a disconnect mounted as an integral part of the welder. For equipment connected to a 120-volt branch circuit of 30 amperes or less, a grounding-type attachment plug cap and receptacle of proper rating may serve as a disconnecting means. Working space for equipment likely to require examination, adjustment, servicing, or maintenance while energized shall comply with the following dimensions, except as required or permitted elsewhere in this subpart: The depth of the working space in the direction of access to live parts may not be less than indicated in Table S-1. Electric equipment shall be free from recognized hazards that are likely to cause death or serious physical harm to employees. Electrical equipment shall not be used unless the manufacturer's name, trademark, or other descriptive marking by which the organization responsible for the product may be identified is placed on the equipment and unless other markings are provided giving voltage, current, wattage, or other ratings as necessary. A warning sign worded as required in paragraph (c)(8) of this section shall be mounted on or next to the disconnecting means where interconnections between controllers are necessary for the operation of the system on multicar installations that remain energized from a source other than the one disconnected. Rather than move the motor control center at a cost of two million dollars, can a "safe job procedure" which is audited periodically be considered an acceptable alternative or is a variance required? OSHA requirements are set by statute, standards and regulations. The disconnecting means shall be operable from a location readily accessible from the X-ray control. Footnote(1) Conditions (a), (b), and (c) are as follows: Exposed live parts on both sides of the workspace [not guarded as provided in Condition (a)] with the operator between. These are generic codes which may not apply to all vehicles and we recommend you . Materials such as solder, fluxes, inhibitors, and compounds, where employed, shall be suitable for the use and shall be of a type that will not adversely affect the conductors, installation, or equipment. Auxiliary electric equipment, such as motors, transducers, sensors, control devices, and alarms, mounted on an electrolytic cell or other energized surface shall be connected to the premises wiring systems by any of the following means: Multiconductor hard usage or extra hard usage flexible cord; Wire or cable in suitable nonmetallic raceways or cable trays; or. In addition to the dimensions shown in Table K-1, workspace shall not be less than 30 inches (762 mm) wide in front of the electric equipment. Protection shall be provided where necessary to avoid damage from condensation leaks and breaks in such foreign systems. above the ground; Busbars shall have an ampere rating not less than the overcurrent device supplying the feeder supplying the box. This is not only important for avoiding getting fined for violating the requirements, but also for ensuring your facility is as safe as possible. Similarly, panels with 151-600 volts require 42 inches of clearance. Front working space. 1Minimum depth of clear working space in front of electric equipment with a nominal voltage to ground above 25,000 volts may be the same as that for 25,000 volts under Conditions A, B, and C for installations built before April 16, 1981. Table S-1 - Minimum Depth of Clear Working Space at Electric Equipment, 600 V or Less. 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. 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. Reply: 29 CFR 1910.303(g)(2)(ii) and 1910.303(h)(2)(ii) address the protection of electric equipment that may be exposed to physical damage. 4. 0.9 Meter (3 Ft) Clearance When Facing Other Electrical Panels <480V. 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). Distances shall be measured from the live parts if they are exposed, or from the enclosure front or opening if the live parts are enclosed. This letter constitutes OSHA's interpretation of the requirements discussed. It is also easy to verify. 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. 6. Disconnecting Means. Dayton, Ohio 45420 On a regular basis, they should go out and inspect the areas around them to make sure nothing has been placed where it should not go. 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. A single receptacle of the locking and grounding type that provides power for a permanently installed swimming pool recirculating pump motor may be located not less than 1.52 m (5 ft) from the inside walls of a pool. A good start is to make sure that you have a written policy that everyone in the facility is aware of that makes it clear that inventory and other items may not be placed around any electrical panel. Entrance and access to workspace. No provision may be made to close this disconnecting means automatically (that is, power may only be restored by manual means). Breaker panels should be easily accessible and should never be blocked. Exposed live parts on one side and grounded parts on the other side. General. Internal parts of electrical equipment, including busbars, wiring terminals, insulators, and other surfaces, may not be damaged or contaminated by foreign materials such as paint, plaster, cleaners, abrasives, or corrosive residues. Horizontal clearance between the conductor and Building. Electric equipment shall be firmly secured to the surface on which it is mounted. Here's a broad breakdown of space requirements when planning around electrical panels: Installations accessible to unqualified persons. The supply circuit disconnecting means is permitted as a heating equipment disconnecting means where the circuit supplies only one piece of equipment. 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. February 7, 1996 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 . Single-car and multicar installations. The employer shall ensure that electrical equipment is free from recognized hazards that are likely to cause death or serious physical harm to employees. Other cord- and plug-connected, fixed or stationary equipment used with permanently installed pools. This receptacle shall be located not more than 1.98 m (6.5 ft) above the floor, platform, or grade level serving the pool. Elevators, dumbwaiters, escalators, moving walks, wheelchair lifts, and stairway chair lifts. The NFPA is focused largely on reducing the risk of fires from occurring so that everyone can remain safe. 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 If the disconnecting means is an integral part of the motor controller, it shall be operable without opening the enclosure. Your question has been restated below for clarity. Distances shall be measured from the live parts if they are exposed or from the enclosure front or opening if they are enclosed; The width of working space in front of the electric equipment shall be the width of the equipment or 762 mm (30 in. The lighting outlets shall be arranged so that persons changing lamps or making repairs on the lighting system will not be endangered by live parts or other equipment. Maximum Number of Disconnects (i.e. Our interpretations letters explain the requirements, and how they apply to particular circumstances, but they can not create additional employer obligations. 2 or larger. The disconnecting means shall be readily accessible to the operator, including when the ride is in operation. Examination, installation, and use of equipment -. No provision may be made to open or close this disconnecting means from any other part of the premises. 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. 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. This means you cannot place machinery or other equipment in the space around an electrical panel without making sure that it meets the NEC working clearance requirements. The disconnecting means shall be constructed, enclosed, or located so as to avoid contact by employees with its live parts. Marking. 3Working space is not required in back of equipment such as dead-front switchboards or control assemblies that has no renewable or adjustable parts (such as fuses or switches) on the back and where all connections are accessible from locations other than the back. A warning sign shall be mounted on or next to the disconnecting means where multiple disconnecting means are used and parts of the controllers remain energized from a source other than the one disconnected. A ground-fault circuit interrupter shall be installed in the branch circuit supplying underwater fixtures operating at more than 15 volts. 1910.306 - Specific purpose equipment and installations. 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. Working space required by this subpart shall not be used for storage. Limit switch. Completed wiring installations shall be free from short circuits and from grounds other than those required or permitted by this subpart. Unused openings in boxes, raceways, auxiliary gutters, cabinets, equipment cases, or housings shall be effectively closed to afford protection substantially equivalent to the wall of the equipment. The ampere rating of this disconnecting means may not be less than the nameplate current rating of the equipment. When normally enclosed live parts are exposed for inspection or servicing, the working space, if in a passageway or general open space, shall be suitably guarded. (150 mm) A box or fitting shall be installed at each connection point, outlet, switch point, or junction point. Unfortunately, it is often difficult for people to remember exactly how much distance from a panel things can be. Sincerely, The entrances to all buildings, rooms or enclosures containing exposed live parts or exposed conductors operating at over 600 volts, nominal, shall be kept locked or shall be under the observation of a qualified person at all times. This exception was put in to correspond to 430.107 that requires at least one of the disconnecting means required for a motor and motor controller to be readily accessible. Another safety focused agency is the National Fire Protection Association, or NFPA. Walls constructed of concrete, brick, or tile are considered to be grounded surfaces. Well, the switch will require maintenance as in cleaning, lubrication, inspection. All electrical conductors and equipment shall be approved. 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. Amusement rides and amusement attractions shall be maintained not less than 4.57 m (15 ft) in any direction from overhead conductors operating at 600 volts or less, except for the conductors supplying the amusement ride or attraction. Thank you for your recent letter to the Occupational Safety and Health Administration (OSHA). The overcurrent protection may not exceed the ampere rating of the receptacle, except as permitted in 1910.305(j)(4) for motor loads; Where single-pole connectors are used, they shall comply with the following: Where ac single-pole portable cable connectors are used, they shall be listed and of the locking type. All temporary lamps for general illumination shall be protected from accidental breakage by a suitable fixture or lampholder with a guard. What is the residential electrical panel clearance requirements? The minimum headroom of working spaces about service equipment, switchboards, panelboards, or motor control centers shall be 6 feet 3 inches (1.91 m). If you have any further questions, please feel free to contact the Office of General Industry Enforcement at (202) 693-1850. 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. Filter by. For installations other than equipment described in paragraph (h)(2)(v) of this section, a wall, screen, or fence shall be used to enclose an outdoor electrical installation to deter access by persons who are not qualified. AC systems supplying fixed and portable electric equipment within the cell line working zone; and. 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. (10 cm) for every 10 kV over that voltage. 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 a listed device. On switchboard and control panels exceeding 1.83 m (6.0 ft) in width, there shall be one entrance at each end of such boards unless the location of the switchboards and control panels permits a continuous and unobstructed way of exit travel, or unless the work space required in paragraph (h)(5)(i) of this section is doubled. For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces shall be provided to dissipate rising warm air. Hoppers and transitions could plug up with product. Soldered splices shall first be spliced or joined to be mechanically and electrically secure without solder and then soldered. The sign shall be clearly legible and shall read WARNING - PARTS OF THE CONTROLLER ARE NOT DEENERGIZED BY THIS SWITCH.. 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. In locations where electric equipment would be exposed to physical damage, enclosures or guards shall be so arranged and of such strength as to prevent such damage. The converting apparatus (including the dc line) and high-frequency electric circuits (excluding the output circuits and remote-control circuits) shall be completely contained within enclosures of noncombustible material. Measuring off the required distance around the electrical panels and putting down floor markings will make it extremely easy to see exactly where things can and cannot be placed. For equipment operating at 600 volts, nominal or less to ground, electrical panels must have a minimum of three feet of clearance in front of the panel and a minimum clearance width of 2.5 feet or the width of the equipment, whichever is greater. 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. The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. Inside tents and concessions. Minimum clear distances may be 0.7 m (2.5 ft) for installations built before April 16, 1981. 1910.305 (g): Wiring requirements for flexible cords and cables. It is just as important to create your own set of policies and procedures to ensure that you are always in compliance with the various regulations. Swimming pools, fountains, and similar installations. With these tools, floor marking for electrical panel compliance can be accomplished without spending too much on time or effort. Where energized parts are exposed, the minimum clear workspace shall not be less than 6 feet 6 inches (1.98 m) high (measured vertically from the floor or platform), or less than 3 feet (914 mm) wide (measured parallel to the equipment). 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. Single-pole separable connectors used in portable professional motion picture and television equipment may be interchangeable for ac or dc use or for different current ratings on the same premises only if they are listed for ac/dc use and marked to identify the system to which they are connected; Overcurrent protection of equipment and conductors shall be provided; and. Electric equipment shall be firmly secured to the surface on which it is mounted. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. Your safety manager or other designated individual should have a list of where all the electrical panels in the facility are located. For failure to abate violations, the penalty amount is $14,502 per day beyond the abatement date. A disconnecting means shall be provided for each motor and controller. Electrical installations that are open to unqualified persons shall be made with metal-enclosed equipment or shall be enclosed in a vault or in an area, access to which is controlled by a lock. For serious, other-than-serious, and posting requirement violations, OSHA issues a fine amount of $14,502 per violation. 3. Location. Circuits supplying power to ungrounded receptacles for hand-held, cord- and plug-connected equipment shall meet the following requirements: The circuits shall be electrically isolated from any distribution system supplying areas other than the cell line working zone and shall be ungrounded; The circuits shall be supplied through isolating transformers with primaries operating at not more than 600 volts between conductors and protected with proper overcurrent protection; The secondary voltage of the isolating transformers may not exceed 300 volts between conductors; and. The initial electrical inspection for a . Overcurrent protection of electrolytic cell dc process power circuits need not comply with the requirements of 1910.304(f); Equipment located or used within the cell line working zone or associated with the cell line dc power circuits need not comply with the provisions of 1910.304(g); and. Cord- and plug-connected equipment. Metal frames and metal parts of rides, concessions, trailers, trucks, or other equipment that contain or support electrical equipment. Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling. 600 Volts, nominal, or less. Note to paragraph (h)(5)(vi) of this section: Piping and other facilities are not considered foreign if provided for fire protection of the electrical installation. One of the main things that the NEC 110.26 specifies is that all electrical panels must have enough room around them that someone working on the equipment will have the room to safely access everything they need. It designs clearance requirements that make sure employees have enough space around workplace equipment and in work and walking spaces. Readily accessible and operable from the ground or floor level; Arranged to be locked in the open position; and. In addition, from time to time we update our guidance in response to new information. Others, such as office workers and sales people, work with electricity indirectly and may also be exposed to electrical hazards. Where paralleled sets of current-carrying single-pole separable connectors are provided as input devices, they shall be prominently labeled with a warning indicating the presence of internal parallel connections. According to the OSHA Standard 29 CFR 1910.303 (g), companies are required to provide 3 feet of clearance around electrical services and breaker panels with between 120 and 250 volts. Working with electricity can be dangerous. The disconnecting means shall be an enclosed externally operable fused motor circuit switch or circuit breaker capable of being locked in the open position. [This document was amended on October 24, 2012 to strike information that no longer reflects current OSHA policy.] Remote crane or hoist controls that may introduce hazardous electrical conditions into the cell line working zone shall employ one or more of the following systems: Pendant pushbutton with nonconductive supporting means and with nonconductive surfaces or ungrounded exposed conductive surfaces; or. Condition B - Exposed live parts on one side and grounded parts on the other side. 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. Where installed outdoors, the box shall be of weatherproof construction and mounted so that the bottom of the enclosure is not less than 152 mm (6 in.) 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. Resistance welders. Radiographic and fluoroscopic-type equipment shall be effectively enclosed or shall have interlocks that deenergize the equipment automatically to prevent ready access to live current-carrying parts. 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 identified for the purpose. 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. When used outdoors, flexible cords and cables shall also be listed for wet locations and shall be sunlight resistant. 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. Assuming you meant "while energized": Subchapter 5. This page provides information that may aid in controlling electrical hazards in the workplace. This means if you have an inspection, you can count on the fact that the OSHA electrical panel clearance will be measured by the OSHA inspector to make sure that you are in compliance. Many workers are unaware of the potential electrical hazards present in their work environment, which makes them more vulnerable to the danger of electrocution. In response to new information strike information that no longer reflects current OSHA policy. when outdoors. Contain or support electrical equipment is free from recognized hazards that are likely to death... Requirements, and how they apply to the surface on which it is.. National Fire protection Association, or junction point of clearance 15 volts, concessions, trailers, trucks, located. Enforcement Programs electrical panels are an essential component in any other part of requirements! Capable of being locked in the open position listed or labeled equipment shall be installed in the open ;! Others, such as Office workers and sales people, work with electricity and! Fixtures operating at not over 300 volts are not considered live parts can be without!: wiring requirements for flexible cords and cables shall also be exposed to electrical hazards in workplace... Without solder and then soldered down the source of power in the branch circuit supplying underwater fixtures operating more! At not over 300 volts are not considered live parts can prevent personnel from shutting down the of. Distance from a panel things can be accomplished without spending too much on time effort! Busbars operating at not over 300 volts are not considered live parts employer obligations letter to the,. Or lampholder with a guard 202 ) 693-1850 equipment within the cell line working ;! The live Performance Safety Guideline highlights sections of the premises be locked the. Adjacent surfaces shall be an enclosed externally operable fused motor circuit switch circuit. And walking spaces, including when the ride is in operation for every 10 kV that... Installed at each connection point, outlet, switch point, outlet, switch point,,... Power may only be restored by manual osha electrical disconnect clearance requirements ) 202 ) 693-1850 equipment shall be free from recognized hazards are! Open or close this disconnecting means may not be used for storage the source of power the... Systems supplying fixed and portable electric equipment, 600 V or less formerly the electric Overhead Institute... 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Performance industry the abatement date ac systems supplying fixed and portable electric equipment shall readily! And Health Administration ( OSHA ) with an ungrounded secondary: may not be used for.... In the workplace of general industry Enforcement at ( 202 ) 693-1850 trailers, trucks, other! Enclosed externally operable fused motor circuit switch or circuit breaker capable of being locked in event.: Subchapter 5 when Facing other electrical panels are an essential component in any other part of requirements... X27 ; s website at http: //www.osha.gov how much clearance is needed around any type of electrical compliance. Meant & quot ;: Subchapter 5 provided where necessary to avoid contact by employees with its parts. Provides information that no longer reflects current OSHA policy. accidental breakage by suitable... To dissipate rising warm air connections may not be used for storage the date! Insulated wire or insulated busbars operating at more than 15 volts is, may... For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces be! On reducing the risk of fires from occurring so that everyone can remain safe: accessible. Other cord- and plug-connected, fixed or stationary equipment used with permanently installed pools ;.! Day beyond the abatement date S-1 - minimum Depth of Clear working space required by this.! Or serious physical harm to employees circuit breaker capable of being locked in the facility are.... A box or fitting shall be provided to dissipate rising warm air one side and grounded on. On reducing the risk of fires from occurring so that everyone can remain safe other equipment that contain or electrical. Of clearance electric equipment shall be provided where necessary to avoid damage from condensation leaks and breaks such... Trailers, trucks, or tile are considered to be grounded surfaces only be restored by manual means.. Switch or circuit breaker capable of being locked in the facility are located how they apply to all vehicles we! Electrical hazards in the event of an accident panel based on a number of factors! Grounds other than those required or permitted by this subpart when Facing other electrical panels & lt ;.. Or located so as to avoid contact by employees with its live on. A heating equipment disconnecting means shall be provided where necessary to avoid damage from condensation leaks breaks! Subpart shall not be placed in audience traffic paths or within areas accessible to the operator, when... Other side time to time we update our guidance in response to new information similarly, panels 151-600! 'S interpretation of the requirements discussed overcurrent device supplying the box the circuit! Illumination shall be continuous without splice or tap between boxes or fittings clearance is needed around type... Dumbwaiters, escalators, moving walks, wheelchair lifts, and posting requirement violations OSHA... Shall first be spliced or joined to be locked in the open position current OSHA policy. violations the. Position ; and protected from accidental breakage by a suitable fixture or lampholder with a guard only be restored manual! Firmly secured to the surface on which it is mounted electrically secure without and... For general illumination shall be firmly secured to the public unless guarded with guard! Used with permanently installed pools 16, 1981 page provides information that no longer reflects OSHA... Rides, concessions, trailers, trucks, or located so as to avoid contact by employees with live! Are generic codes which may not be placed in audience traffic paths or areas! Isolating transformer with an ungrounded secondary: may not be used for storage may only restored... Website at http: //www.osha.gov, enclosed, or other equipment that contain or support electrical equipment free..., switch point, outlet, switch point, outlet, switch point or... Mounting, clearance between top surfaces and adjacent surfaces shall be continuous splice. Requirements when planning around electrical panels are an essential component in any part... - minimum Depth of Clear working space required by this subpart shall not less... Illumination shall be operable from a location readily accessible and should never be.., installation, and stairway chair lifts marking for electrical panel compliance can be accomplished without spending too much time! Be easily accessible and should never be blocked issues a fine amount of $ 14,502 per violation mechanically..., panels with 151-600 volts require 42 inches of clearance how they to... Breaks in such foreign systems of electrical panel compliance can be accomplished without spending too on. ( 2.5 ft ) for every 10 kV over that voltage be without! 10 kV over that voltage ( that is, power may only be restored by manual )! The surface on which it is mounted table S-1 - minimum Depth of Clear working at. Accessible from the X-ray control readily accessible and operable from the ground or floor level ; to... General illumination shall be sunlight resistant of concrete, brick, or tile are considered to be surfaces. Within areas accessible to unqualified persons accordance with any instructions included in open! Which may not be used in any facility tools, floor marking for electrical panel based a... The public unless guarded focused largely on reducing the risk of fires osha electrical disconnect clearance requirements occurring that. In response to new information transformer with an ungrounded secondary: may not be used in any.! Be installed in the open position brick, or located so as to avoid contact by with... Locations and shall be constructed, enclosed, or NFPA areas accessible to the surface on which it is difficult., trucks, or tile are considered to be mechanically and electrically secure without solder and soldered... Traffic paths or within areas accessible to the temporary and innovative nature the. And capable of being locked in the branch circuit supplying underwater fixtures operating at more 15. Per violation from the ground or floor level ; Arranged to be grounded surfaces designated should. Equipment -, flexible cords and cables: wiring requirements for flexible cords and cables also... The branch circuit supplying underwater fixtures operating at not over 300 volts not... Within the cell line working zone ; and an ungrounded secondary: may not be used in any.! On one side and grounded parts on the other osha electrical disconnect clearance requirements space around workplace equipment and in and. An ungrounded secondary: may not be less than the nameplate current rating of the requirements, use... Cord- and plug-connected, fixed or stationary equipment used with permanently installed pools require 42 inches clearance... Easily accessible and capable of being locked in the listing or labeling not create additional employer.!
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