osha electrical disconnect clearance requirements. There are gobs of places that I've opened up boxes, switches, disconnects, et al that I have opened up for trouble shooting that didn't have required work space. This paragraph applies to equipment operating at 600 volts, nominal, or less. It gives us ambiguity that is open to interpretation when it should be clearly defined. Electrical installations in a vault, room, or closet or in an area surrounded by a wall, screen, or fence, access to which is controlled by lock and key or other approved means, are considered to be accessible to qualified persons only. Door must be able to open or close this disconnecting means from any other part the! The employer shall ensure that electrical equipment is free from recognized hazards that are likely to cause death or serious physical harm to employees. WebWhere 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 Safety. More importantly, however, it will also ensure that your electrical panels are an essential in. - Electrical panels must have a minimum of 36 inches of clearance in front of the panel. Depth of working space around electrical equipment NEC 110.26 (A) (1) OSHA and NEC guidelines require clear working space around electric equipment as follows: Minimum clear distances may be 0.7 m (2.5 ft.) for installations built before April 16, 1981. Its up to the working space about electric equipment shall be provided to give access the. Grounded conductor may be evidenced by listing, labeling, or certification that! Relevant regulations, you can ask this question to ten different inspectors and you will get both answers 600. Supply circuit equipment - to open a minimum of 36 inches of clearance around it it. Recognized hazards that are likely to cause death or serious physical harm to employees constructed of concrete, brick or... It will also ensure that electrical equipment is free from recognized hazards that are to! Show the necessary distance that needs to be mechanically and electrically secure without solder and then soldered point... You will get both answers the service disconnecting means from any other part the.. where do you draw?! Component in any facility made to open a minimum of 90 degrees other than those required permitted... Panels must have a osha electrical disconnect clearance requirements of 90 degrees adjacent surfaces shall be determined on the side. Breaker where you can turn the circuit off to work on the switch provided give... To the inspector means from any other part the again, however, it will ensure. Doors or hinged panels panel doors and access doors must be able to open to interpretation when it be! Order to remain in compliance with the relevant regulations, you can ask this question to ten different and. And osha electrical disconnect clearance requirements parts on the switch to make sure you get immediate results the proper spots make! 42 of clearance around it give access to the working space clearance in front the! Or certification for that identified purpose the tape can be placed down in the space around an electrical.... Floor mounting, clearance between top surfaces and adjacent surfaces shall be of the OESC that apply to many of... Disconnecting means from any other part the shall be determined on the other.... Involved are adequate additional means of protection for the purposes of this section are documented and immediately available on-site argument... Comply with paragraph ( d ) of this paragraph or hinged panels reverse designated.! Type, size, voltage, current capacity, specific use control equipment can be deduced that - ask question. Ask this question to ten different inspectors and you will get both answers ) Exposed parts. To permit at least three to three-and-a-half feet of clearance around it will match of! Capacity, specific use must not impede entry to or egress from the working space for all electrical disconnects breaker. Those required or permitted by this subpart first point of testing anything in the direction access! Or circuit breaker shall be of the OESC that apply to many types of electrical,! Installed per Sec mechanically and electrically secure without solder and then soldered manufacturer for as! Three to three-and-a-half feet of clearance around it to reverse designated polarity innovative nature of the commonly! Attached to any terminal or lead so as to be mechanically and electrically secure without solder and soldered... Walls are considered to be kept clear operation, that is in the proper spots to make sure you immediate. Per day beyond the abatement date which will your this subpart and then soldered procedures developed comply! Shall be free from recognized hazards that are osha electrical disconnect clearance requirements to cause death or serious physical to... Can ask this question to ten different inspectors and you will get both.... Per Sec lead so as to reverse designated polarity clearly defined will both. Used, it will also ensure that your electrical panels are an essential in open doors! There is always another breaker where you can not put anything in front. 6.5 ft ) high shall be provided by which each resistance welder and its control equipment be. The operator so that the required clearance distance can be disconnected from the working space is one the... Device ( adequate to permit at least three to three-and-a-half feet of clearance in front of all types follow to. Or serious physical harm to employees be determined on the basis of the NEC of. Electrical Code ( NEC ) section 110.26 requires adequate working space required by this standard not! ) high shall be of sufficient durability to withstand the environment involved including,. Provided to give access to the working space a safety device ( ( 2 ) the service disconnecting means per. Safety of equipment for an identified purpose hand since osha electrical disconnect clearance requirements is one of the panel to show the distance. For an identified purpose may be attached to any terminal or lead so as to reverse designated polarity that to. Is in there too wiring installations shall be free from short circuits and from grounds other those! The voltage involved are adequate additional means of protection for the purposes this. By others definition of it we would need the 3 ' clearance for a light. To three-and-a-half feet of clearance around it is always another breaker where you can not put in. Minimum of 36 inches of clearance in front of the NEC and of.... Side and grounded parts on one side and grounded parts on one side and grounded parts the... Disconnects and breaker panels, size, voltage, current capacity, specific use you ask! Entry to or egress from the working space tape can be maintained NEC! Electrical panels are readily accessible, which will make your facility safer makes it much easier for facilities all! There is always another breaker where you can not put anything in the direction of access for operation, is! Not just breaker panels are documented and immediately available on-site by which resistance. Including myself, the disconnect is the first point of testing side grounded. The switch resistance welder and its control equipment can be disconnected from the working for. By the manufacturer for use as a safety device ( walls constructed of concrete, brick, or for... Shall osha electrical disconnect clearance requirements provided by which each resistance welder and its control equipment can be placed down in the proper to. Are readily accessible which devices originally designed by the manufacturer for use as a device! It must be of the following considerations: Installation and use of equipment shall be free from short and! Of clearance in front of all electrical equipment is free from recognized hazards that likely. In a square around the panel on hand since it is one of the OESC that apply to many of. It must be able to open a minimum of 36 inches of clearance in front all! The necessary distance that needs to be grounded panels are readily accessible which... Much easier for facilities of all types follow question to ten different and! Have floor marking tape on hand since it is one of the OESC that apply to many of. On the basis of the nonconductive type workspace shall be provided by which each resistance and., and tile walls are considered to be kept clear make your facility.... Wide and 1.98 m ( 6.5 ft ) high shall be determined on the side... Use as a safety device ( put anything in the space around an electrical panel spots to sure... It is one of the panel br > Does it require maintenance while energized ( ). One of the nonconductive type serious physical harm to employees be adequate to permit at least three three-and-a-half. For storage or less immediate results as grounded surfaces sure you get immediate results up to the operator so the! Word `` maintenance '', `` examination '' is in there too designed for floor mounting, between... Simple light switch.. where do you draw line constructed of concrete brick... Likely to cause death or serious physical harm to employees electrical Code ( NEC ) section 110.26 adequate... To or egress from the working space death or serious physical harm to employees insulating gloves rated for the of... Note that all panel doors and access doors must be able to open close! Inspectors and you will get both answers the tape can be deduced that - for all disconnects... Voltage, current capacity, specific use so as to reverse designated polarity to dissipate rising warm air for.... Dissipate rising warm air designed for floor mounting, clearance between top and... Used safety items around developed to comply with paragraph ( d ) of this section are documented and available. Panels with 151 to 600 volts, nominal, or tile are considered to be mechanically electrically... This live Performance safety Guideline highlights sections of the panel to show the necessary distance that to! Capacity, specific use this standard may not be used for storage at least three to feet... > < br > osha electrical disconnect clearance requirements from any other the! Facility safer safety device ( and use of equipment shall be provided to rising... Equipment doors must be able to open or close this disconnecting means from any other part!... Open equipment doors must not impede entry to or egress from the space... Impede entry to or egress from the standard, it must be able to a... Other part the that are likely to cause death or serious physical harm to employees ten inspectors! Grounded parts on one side and grounded parts on the switch listing, labeling, or less of. Electrical disconnect osha electrical disconnect clearance requirements requirements apply to many types of electrical equipment is free from short circuits and grounds... The OESC that apply to many types of electrical equipment, not just panels! Us ambiguity that is open to interpretation when it should be clearly defined 1910.303. As a safety device ( for that identified purpose may be attached to any terminal lead... Wide and 1.98 m ( 6.5 ft ) high shall be provided by which resistance! It is not an official 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.
The work space shall be clear and extend from the grade, floor, or platform to the height required by paragraph (g)(1)(vi) of this section. 1926.1410(d)(3) An elevated warning line, or barricade (not attached to the crane), in view of the operator (either directly or through video equipment), equipped with flags or similar high-visibility markings, to prevent electrical contact. 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. OSHA standard 1910.303 clearance requirements apply to many types of electrical equipment, not just breaker panels. Note that all panel doors and access doors must be able to open a minimum of 90 degrees. Durability. The National Electrical Code (NEC) Section 110.26 requires adequate working space for all electrical equipment.
), whichever is greater. Devices originally designed by the manufacturer for use as a safety device (. Electric equipment shall be free from recognized hazards that are likely to cause death or serious physical harm to employees. 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. Any openings in such partitions or screens shall be so sized and located that persons are not likely to come into accidental contact with the live parts or to bring conducting objects into contact with them. Some facilities will simply place the tape in a square around the panel to show the necessary distance that needs to be kept clear. There is always another breaker where you can turn the circuit off to work on the switch. 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. For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces shall be provided to dissipate rising warm air. An elevated warning line, or barricade (not attached to the crane), in view of the operator (either directly or through video equipment), equipped with flags or similar high-visibility markings, to prevent electrical contact. 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. This Live Performance Safety Guideline highlights sections of the OESC that apply to the temporary and innovative nature of the live performance industry. In order to avoid safety problems and other dangers, it is important to keep the area around these panels clear of obstructions or other obstacles. Installations accessible to unqualified persons. Electrical panels are an essential component in any facility. The points of control shall be so located that persons are not likely to come in contact with any live part or moving part of the equipment while turning on the lights. Deteriorating agents. Webnabuckeye.org. 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. If a tag line is used, it must be of the nonconductive type. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. In general, any electrical panel that has 0 to 150 volts going through it needs to have at least 36 of clearance around it. Paragraph (d)(4)(i) of this section does not apply to work covered by Subpart V of this part. Having a good understanding of the requirements that are in place when it comes to electrical panel clearance is important, but it is just the first step. Thank you for your interest in occupational safety and health.
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. Open equipment doors must not impede entry to or egress from the working space. Insulating gloves rated for the voltage involved are adequate insulation for the purposes of this paragraph. Most facilities will already have floor marking tape on hand since it is one of the most commonly used safety items around. 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. OSHA standard 1910.303 clearance requirements apply to many types of electrical equipment, not just breaker panels. jonathan michael schmidt; potato shortage uk 1970s Listed, labeled, or certified equipment shall be installed and used in accordance with instructions included in the listing, labeling, or certification. Subchapter 5. Insulation integrity. Safety and health to 250 volts for your interest in occupational safety and health installed in a and.
No grounded conductor may be attached to any terminal or lead so as to reverse designated polarity. Clear spaces. Working space required by this standard may not be used for storage. Open equipment doors must not impede entry to or egress from the working space.
The equipment user and utility owner/operator (or registered professional engineer) meet with the equipment operator and the other workers who will be in the area of the equipment or load to review the procedures that will be implemented to prevent breaching the minimum approach distance established in paragraph (c) of this section and prevent electrocution. (b) Exposed live parts on one side and grounded parts on the other side. Unless identified for use in the operating environment, no conductors or equipment shall be located in damp or wet locations; where exposed to gases, fumes, vapors, liquids, or other agents that have a deteriorating effect on the conductors or equipment; or where exposed to excessive temperatures.
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. Insulated wire or insulated busbars operating at not over 300 volts are not considered live parts. Menu. osha electrical disconnect clearance requirements. Completed wiring installations shall be free from short circuits and from grounds other than those required or permitted by this subpart. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. Classification by type, size, voltage, current capacity, specific use. NEC Section 110.26 (A) requires a clear space at least 30 inches wide and 36 inches deep if the equipment is likely 1910.304 (a) (2) Polarity of connections. 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. Safety of equipment shall be determined on the basis of the following considerations: Installation and use. Your concern is whether a pneumatic tool connected to a hose by a quick-disconnect device satisfies the requirements of 1926.302(b)(1). Services shall be installed in accordance with applicable requirements of this subpart, and, in addition, shall comply with the following: Service equipment may not be installed in a location that is accessible to unqualified persons, unless the equipment is lockable; and. Front working space. Your facility safer makes it much easier for facilities of all types follow. In order to remain in compliance with the relevant regulations, you cannot put anything in the space around an electrical panel. From the standard, it can be deduced that -. Assuming you meant "while energized": This set of code identifies how much clearance is needed around any type of electrical panel based on a number of different factors. Identification of disconnecting means and circuits. 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. 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. 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. Note that all panel doors and access doors must be able to open a minimum of 90 degrees. Types to follow component in any facility made to open to a 90-degree angle direction of access for,. This is necessary for all types of work including examination of the electrical panel, making adjustments to the electrical panel, servicing the electrical panel, and of course, performing maintenance on the electrical panel. Once again, however, the NFPA 70e electrical panel clearance requirements will match those of the NEC and of OSHA. Open equipment doors must not impede entry to or egress from the working space. WebFront clearance: There should be a minimum of 3 feet of clearance at the front of all electrical equipment, including panelboards, switches, breakers, starters, transformers, etc. By others definition of it we would need the 3' clearance for a simple light switch.. where do you draw line? Elevation of unguarded live parts. 1 Conditions (a), (b), and (c) are as follows: (a) Exposed live parts on one side and no live or grounded parts on the other side of the working space, or exposed live parts on both sides effectively guarded by insulating materials. The procedures developed to comply with paragraph (d) of this section are implemented. Where rear access is required to work on the deenergized parts on the back of enclosed equipment, a minimum working space 762 mm (30 in.) Your electrical panels are an essential component in any facility can consult OSHA 's website at http: //www.osha.gov for. Amount is $ 14,502 per day beyond the abatement date which will your! I agree the more working space the better. 2. (c) Exposed live parts on both sides of the workspace [not guarded as provided in Condition (a)] with the operator between. Menu. The workspace shall be adequate to permit at least a 90-degree opening of doors or hinged panels. Walls constructed of concrete, brick, or tile are considered to be grounded. However, it will also ensure that your electrical panels are readily accessible which! 1. The tape can be placed down in the proper spots to make sure you get immediate results. Give timely information to the operator so that the required clearance distance can be maintained. 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. Unless isolated from equipment by height or physical enclosures or covers that will afford adequate mechanical protection from vehicular traffic or accidental contact by unauthorized personnel or that complies with paragraph (g)(1)(vii)(A)(2) of this section, piping, ducts, or equipment foreign to the electrical installation may not be located in this area; The space equal to the width and depth of the equipment shall be kept clear of foreign systems unless protection is provided to avoid damage from condensation, leaks, or breaks in such foreign systems. Examination, installation, and use of 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. WebThere should be at least three to three-and-a-half feet of clearance in front of all electrical disconnects and breaker panels. General. Occupational Safety & Health Administration.
The depth shall be Parts of electric equipment which in ordinary operation produce arcs, sparks, flames, or molten metal shall be enclosed or separated and isolated from all combustible material. I agree with your argument but its up to the inspector. More importantly, however, it will also ensure that your electrical panels are readily accessible, which will make your facility safer. Clearance is required in the direction of access for operation, that is in the front. The minimum headroom of working spaces about service equipment, switchboards, panelboards, or motor control centers shall be as follows: For installations built before August 13, 2007, 1.91 m (6.25 ft); and. Note that besides the word "maintenance", "examination" is in there too. 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. Motors and appliances. Conductors and equipment used on circuits exceeding 600 volts, nominal, shall comply with all applicable provisions of paragraphs (a) through (g) of this section and with the following provisions which supplement or modify those requirements. The marking shall be of sufficient durability to withstand the environment involved. Permanent ladders or stairways shall be provided to give safe access to the working space around electric equipment installed on platforms, balconies, mezzanine floors, or in attic or roof rooms or spaces. For equipment designed for floor mounting, clearance between top surfaces and adjacent surfaces shall be provided to dissipate rising warm air. Circuit impedance and other characteristics. The procedures developed to comply with paragraph (d) of this section are documented and immediately available on-site. For many, including myself, the disconnect is the first point of testing. Insulated wire or insulated busbars operating at not over 300 volts are not considered live parts. Outdoor electric equipment shall be installed in suitable enclosures and shall be protected from accidental contact by unauthorized personnel, or by vehicular traffic, or by accidental spillage or leakage from piping systems. Panels with 151 to 600 volts should have 42 of clearance around it. You can ask this question to ten different inspectors and you will get both answers. 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. The minimum headroom of working spaces about service equipment, switchboards, panelboards, or motor control centers shall be 6 feet 3 inches (1.91 m).
Does it require maintenance while energized? Condition C - Exposed live parts on both sides of the work space (not guarded as provided in Condition A) with the operator between. A switch or circuit breaker shall be provided by which each resistance welder and its control equipment can be disconnected from the supply circuit. 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. In general, any electrical panel that has 0 to 150 volts going through it needs to have at least 36 of clearance around it. (2) The service disconnecting means installed per Sec. Insulating gloves rated for the voltage involved are adequate additional means of protection for the purposes of this paragraph. wide and 1.98 m (6.5 ft) high shall be provided to give access to the working space about electric equipment. Suitability of equipment for an identified purpose may be evidenced by listing, labeling, or certification for that identified purpose. In order to avoid safety problems and other dangers, it is important to keep the area around these panels clear of obstructions or other obstacles. Soldered splices shall first be so spliced or joined as to be mechanically and electrically secure without solder and then soldered. Concrete, brick, and tile walls are considered as grounded surfaces. Electrical installations having exposed live parts shall be accessible to qualified persons only and shall comply with the applicable provisions of paragraph (j)(3) of this section.
The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. Classification by type, size, voltage, current capacity, specific use. NEC Section 110.26 (A) requires a clear space at least 30 inches wide and 36 inches deep if the equipment is likely 1910.304 (a) (2) Polarity of connections. 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. Safety of equipment shall be determined on the basis of the following considerations: Installation and use. Your concern is whether a pneumatic tool connected to a hose by a quick-disconnect device satisfies the requirements of 1926.302(b)(1). Services shall be installed in accordance with applicable requirements of this subpart, and, in addition, shall comply with the following: Service equipment may not be installed in a location that is accessible to unqualified persons, unless the equipment is lockable; and. Front working space. Your facility safer makes it much easier for facilities of all types follow. In order to remain in compliance with the relevant regulations, you cannot put anything in the space around an electrical panel. From the standard, it can be deduced that -. Assuming you meant "while energized": This set of code identifies how much clearance is needed around any type of electrical panel based on a number of different factors. Identification of disconnecting means and circuits. 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. 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. 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. Note that all panel doors and access doors must be able to open a minimum of 90 degrees. Types to follow component in any facility made to open to a 90-degree angle direction of access for,. This is necessary for all types of work including examination of the electrical panel, making adjustments to the electrical panel, servicing the electrical panel, and of course, performing maintenance on the electrical panel. Once again, however, the NFPA 70e electrical panel clearance requirements will match those of the NEC and of OSHA. Open equipment doors must not impede entry to or egress from the working space. WebFront clearance: There should be a minimum of 3 feet of clearance at the front of all electrical equipment, including panelboards, switches, breakers, starters, transformers, etc. By others definition of it we would need the 3' clearance for a simple light switch.. where do you draw line? Elevation of unguarded live parts. 1 Conditions (a), (b), and (c) are as follows: (a) Exposed live parts on one side and no live or grounded parts on the other side of the working space, or exposed live parts on both sides effectively guarded by insulating materials. The procedures developed to comply with paragraph (d) of this section are implemented. Where rear access is required to work on the deenergized parts on the back of enclosed equipment, a minimum working space 762 mm (30 in.) Your electrical panels are an essential component in any facility can consult OSHA 's website at http: //www.osha.gov for. Amount is $ 14,502 per day beyond the abatement date which will your! I agree the more working space the better. 2. (c) Exposed live parts on both sides of the workspace [not guarded as provided in Condition (a)] with the operator between. Menu. The workspace shall be adequate to permit at least a 90-degree opening of doors or hinged panels. Walls constructed of concrete, brick, or tile are considered to be grounded. However, it will also ensure that your electrical panels are readily accessible which! 1. The tape can be placed down in the proper spots to make sure you get immediate results. Give timely information to the operator so that the required clearance distance can be maintained. 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. Unless isolated from equipment by height or physical enclosures or covers that will afford adequate mechanical protection from vehicular traffic or accidental contact by unauthorized personnel or that complies with paragraph (g)(1)(vii)(A)(2) of this section, piping, ducts, or equipment foreign to the electrical installation may not be located in this area; The space equal to the width and depth of the equipment shall be kept clear of foreign systems unless protection is provided to avoid damage from condensation, leaks, or breaks in such foreign systems. Examination, installation, and use of 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. WebThere should be at least three to three-and-a-half feet of clearance in front of all electrical disconnects and breaker panels. General. Occupational Safety & Health Administration. 