Loading (50 kb)...'
(continued)
(c) (G-3) With the exception noted below, every derrick used for well servicing shall have a continuous outside derrick platform at least two feet (2 ') wide completely around the derrick at an elevation not more than two feet (2 ') above and not more than one (1) girt [not to exceed eight feet (8 ')] below the principal inside derrick platform.
If well-servicing hoists are used and operating conditions necessitate running the sand line to the sand reel outside the derrick tower, the platform on that side of the derrick tower may be omitted.
(G-2) Every derrick used for well servicing shall have an outside derrick platform at least two feet (2 ') wide across the side of the derrick in which the principal inside derrick platform is located. This outside derrick platform shall be parallel to the longest side of the inside platform, and shall be two feet (2 ') or less from adjacent derrick legs and at an elevation not more than two feet (2 ') above and not more than one (1) girt [not to exceed eight feet (8 ')] below the principal inside derrick platform.
(d) (G-2, G-3) Every derrick used for well servicing shall have an outside derrick platform at least two feet (2 ') wide across the side of the derrick in which each auxiliary inside derrick platform is located. This outside derrick platform shall be parallel to the longest side of the inside platform and shall be two feet (2 ') or less from adjacent derrick legs and at an elevation not more than two feet (2 ') above and not more than one (1) girt [not to exceed eight feet (8 ')] below the inside derrick platform. A minimum vertical clearance of at least six and one-half feet (6 1/2 ') shall be maintained between outside derrick platforms.
Every derrick used for well servicing shall have an outside derrick platform at least two feet (2 ') wide across the side of the derrick in which the inside derrick rod board platform is located. This outside derrick platform shall be parallel to the longest side of the inside derrick rod board platform, and shall be two feet (2 ') or less from adjacent derrick legs and at an elevation not more than two feet (2 ') above and not more than five feet (5 ') below the inside derrick rod board platform. A minimum vertical clearance of at least six and one-half feet (6 1/2 ') shall be maintained between outside derrick platforms.
(e) (G-2, G-3) Direct access shall be provided to each outside derrick platform by the main derrick ladder, by an auxiliary derrick ladder from any lower outside derrick platform to which the main derrick ladder provides direct access, or by extending the outside derrick platform to the main derrick ladder.
(f) The outer edges of all outside derrick platforms shall be equipped with standard railings and toeboards.
(g) The outer edges of all ladder offset platforms shall be equipped with standard railings but need not be equipped with toeboards.
Exception: to subsections (f) and (g) of this section: Railings and toeboards constructed on these respective platforms before March 1, 1924, need not conform to standards set forth in the General Industry Safety Orders, but shall consist of a top rail three and one-half feet (3 1/2 ') high, and a mid rail, or equivalent type of construction. Such railings and toeboards shall be constructed and maintained to conform to good engineering practices.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6562. Crown Platforms and Railings.
(a) (G-2, G-3) On every derrick used for drilling, redrilling, or well servicing, a continuous platform at least two feet (2 ') wide shall be provided completely around the outer edges of the derrick crown. The outer edges of the platform shall be equipped with standard railings and with toeboards at least twelve inches (12 ") high.
(b) (G-2, G-3) The derrick crown platform shall be at an elevation that will provide access to the crown block.
(c) If a (G-1) derrick is used for drilling or redrilling, it shall conform to the requirements of this section.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6563. Derrick Gin Pole.
(a) A derrick gin pole or other equivalent means shall be provided on every derrick tower when it is necessary to raise or lower a crown block to or from the top of the derrick tower.
(b) A derrick gin pole shall not be subjected to loads greater than the design and condition of the structure will withstand.
(c) Every derrick gin pole used to handle a crown block shall have sufficient height above the derrick crown (water table) to permit the crown block to be raised to a point at least two feet (2 ') in the clear above the top of the water table.
(d) When a derrick gin pole is used to install a crown block, access shall be provided to the top of the derrick gin pole by means of a fixed ladder.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6564. Derrick Ladders.
(a) (G-2, G-3) Every derrick shall be equipped with a fixed ladder or ladders providing access from the derrick floor to the derrick crown platform and to each intervening outside derrick platform.
(b) (G-2, G-3) The width of ladders shall be at least twelve inches (12 "), measured from the inside of the side rails.
(c) (G-2, G-3) Uniform and parallel rung or step spacing shall be employed and shall be not less than twelve inches (12 ") nor more than sixteen inches (16 ") from top to top of rungs or steps. The clear space between rungs or steps shall be not less than eight inches (8 ").
(d) (G-2, G-3) Where sections of a ladder are spliced, they shall be so supported at the splice that the ladder will be aligned and the splice will not be stressed beyond its safe working limit.
(e) On the climbing side of the ladder, a clear and unobstructed space shall be maintained to a distance of at least twelve inches (12 ") from each side of a center line drawn vertically through the center of the ladder width and to a distance at least twenty-four inches (24 ") outward from the front of the ladder rungs or steps; provided, however, this does not apply to ladderway openings in platforms, nor does it forbid the use of safety devices to prevent or control falls from a ladder when the use of the device is approved by the Division or designed and constructed in compliance with recognized national standards such as ANSI, UL or Factory Mutual.
(f) (G-2, G-3) Throughout the length and width of the back of the ladder, a space of at least four inches (4 ") shall be maintained clear of all obstructions that present a tripping hazard, prevent a safe footing, or prevent a secure handhold to the ladder rungs or steps.
(g) No ladder shall lean backward from the vertical. Ladders may, if necessary, lean sideways from the vertical but not in excess of three degrees (3 degrees), provided, however, that the slope of the rungs or steps, in the width dimension of the ladder, shall not exceed two degrees (2 degrees) from the horizontal.
(h) (G-2, G-3) The lowest rung or step of a ladder or ladder section shall be not more than sixteen inches (16 ") above the derrick floor or platform landing.
(i) (G-2, G-3) Every ladder shall be secured with bolts, brackets, or equivalent fastening.
(j) (G-2, G-3) The top end of each ladder or ladder section providing access to the derrick crown platform, outside derrick platform, ladder offset platform, inside derrick platform, monkey board platform or any fixed platform in or on a derrick shall extend at least three and one-half feet (3 1/2 ') above the platform.
(k) (G-3) Continuous ladders or ladder sections shall be provided with platforms at intervals not exceeding forty feet (40 ') upon which the employee may rest. Such platforms shall be not less than twelve inches (12 ") in depth, nor less than eighteen inches (18 ") in width. Handholds shall be provided above the rest platform. Toeboards and railings are not required.
(l) Ladders constructed of wood shall be as follows:
(1) (G-2, G-3) Side rails shall be not less than two by four inches (2 " x 4 "), nominal size.
(2) (G-2, G-3) Rungs or steps shall be not less than one by four inches (1 " x 4 "), nominal size.
(3) (G-2, G-3) In addition to nailing rungs or steps to the side rails, provision shall be made to prevent the rungs or steps from being pulled off under normal use. This shall be done by nailing strips of not less than one by two inch (1 " x 2 ") lumber to the side rails, over the ends of the rungs, or steps, or by other means providing equivalent fastenings.
(4) (G-2, G-3) The top and bottom of each side rail of the ladder section shall be secured to the derrick with bolts at least three-eighths inch (3/8 ") in diameter or other equivalent means.
Lag screws, spikes or nails are not acceptable as a means of securing such ladders in place.
(m) Ladder cages are not required on any standard type derrick.
(n) Every (G-1) derrick shall be equipped with a securely fastened fixed ladder or ladders providing access from the derrick floor to the derrick crown and to each intervening derrick platform in or on the derrick.
Note: These ladders need not meet the detailed specifications required by other subsections of this article specifically applying to (G-2) or (G-3) derricks.
(o) If derrick ladders are offset, such offsets shall occur only at outside derrick platforms or ladder offset platforms.
(p) Counterweighted ladder climbing assist devices may be used in conjunction with a ladder climbing safety device or in conjunction with rest platforms on the ladder in conformance with these orders. If the assist device is used in conjunction with ladders with rest platforms, the counterweight shall weigh no more than 100 pounds. Employees using the assist device will be instructed in proper use of the device.
Exception: The lower end of fixed ladders may be terminated at a height not to exceed ten feet (10 ') above the floor or working area. A secured portable ladder of similar design shall provide access to the lower section of the fixed ladder when the ladder is in use.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6565. Ladderway Openings in Platforms.
(a) (G-2, G-3) Openings in platforms to permit the passage of men climbing the derrick ladder shall be provided as follows:
(1) The width of the openings parallel to the ladder width shall be at least twenty-two inches (22 ") but not more than thirty inches (30 "). The ladder shall be placed midway along the width of the opening.
(2) The openings shall be clear and unobstructed to a distance of at least twenty inches (20 ") outward from the front of the ladder rungs or steps.
(3) There shall be a clearance of at least twenty inches (20 ") between platform railings and toeboards and the ladder rungs or steps.
(4) Exception: Platforms installed on G-2 derricks before June 13, 1952, and not having the clearances required in paragraphs (2) and (3) of this subsection, will be allowed a two inch (2 ") minus tolerance.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6566. Guying Standard Type Derricks.
(a) Reasonable provisions shall be made to prevent derricks from collapsing as a result of wind velocity. This shall be accomplished by using either one or both of the following methods:
(1) By the use of guy lines.
(2) By constructing the derrick and foundations in such a manner as to resist overturning.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6568. Construction and Maintenance.
(a) Every derrick and mast and their component parts shall be constructed and maintained to conform to good engineering practice.
(b) Supporting structures of operating derricks and masts shall be constructed and maintained to conform to good engineering practice. The derrick or mast and supporting structure shall not be loaded beyond its designed capacity.
(c) Auxiliary parts of derricks and masts shall be constructed and maintained to conform to good engineering practice.
(d) Derrick and mast floors shall cover the area within the perimeter of the derrick or mast, except for such portions of the area and openings in the floor that are necessary for operating equipment and operating procedures.
(e) (G-2, G-3) The derrick or mast floor, if more than two feet (2 ') above ground level at the approach to the derrick or mast ladder shall extend to at least two feet (2 ') beyond the climbing side of the ladder. This extended portion of the floor shall be not less than four feet (4 ') in width.
(f) Employees shall be protected from the hazards of falling tong counterweights by one of the following:
(1) The counterweight shall be enclosed with a guard which extends from the working level to at least the midpoint of the counterweight when it is at its highest position;
(2) The counterweight shall be secured by chain or cable to prevent the counterweight from coming within seven feet above the floor or working level; or,
(3) Work or pedestrian traffic shall be prohibited in the area below the counterweight. The area below the counterweight shall be enclosed or barricaded.
(a) Each end of every finger board shall be secured to the derrick girts or other supports upon which it is placed, with machine bolts, "U" bolts, "J" bolts, or other equivalent means. Nails shall not be considered a fastening.
(b) Every metal finger and finger brace shall be fastened to the finger board with bolts or by welding or other equivalent means.
(c) All fingers shall be provided with a wire rope, chain or other equivalent means to prevent them from falling if dislodged.
(d) A metal finger exposed to contact with the traveling block shall be secured in place with a bolt or other fastening that will release or deflect the finger if it is caught on the traveling block, thus preventing material damage to the structure to which it is attached. The finger shall be secured with a wire rope, chain, or other equivalent means, to prevent it from falling if dislodged.
(e) Every wooden finger and finger brace shall be fastened to the finger board with bolts or other equivalent means. Lag screws, spikes or nails are not considered a fastening.
(f) All wooden fingers and wooden finger braces which project beyond the edge of the finger board adjacent to the traveling block shall be secured by one of the following methods to prevent them from falling if broken in two or if the securing bolts fail:
(1) By wrapping a guy strand or wire at least one complete turn around and through the entire length of the finger and finger brace, nailing or otherwise fastening the guy strand or wire to them at intervals of not more than one foot (1'), and fastening one end of the guy strand or wire to the derrick or mast.
(2) By zigzagging a guy strand or wire along one or more sides and through the entire length of the finger and finger brace, nailing or otherwise fastening the guy strand or wire to them at intervals of not more than one foot (1'), and fastening one end of the guy strand or wire to the derrick or mast.
(3) By other methods providing a secure fastening equivalent to those described in paragraph (1) and (2) of this subsection.
Exception: When a mast base is used in conjunction with a standard steel derrick (such as necessitated by soundproofing or other requirements), the regular mast base flooring and guarding will be permissible if approaches to pipe walkway, stairway, or runway are extended.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6569. Fingers, Finger Boards and Finger Braces.
(a) Fingers, finger boards and finger braces shall be of structurally sound material, of adequate strength, and installed in the derrick or mast in a workmanlike manner to safely withstand the stresses imposed on them by pipe and other equipment racked in the derrick or mast.
(b) Each end of every finger board shall be securely fastened to the derrick girts or other supports upon which it is placed, with machine bolts, "U" bolts, "J" bolts, or other equivalent means. Nails shall not be considered a secure fastening.
(c) Every metal finger and finger brace shall be securely fastened to the finger board with bolts or by welding or other equivalent means.
(d) If a metal finger is not secured to the finger board by welding, it shall be provided with a wire rope or chain to prevent it from falling if its fastenings fail.
(e) A metal finger exposed to contact with the traveling block shall be secured in place with a bolt or other fastening that will release or deflect the finger if it is caught on the traveling block, thus preventing material damage to the structure to which it is attached. The finger shall be secured with a wire rope, chain, or other equivalent means, to prevent it from falling if dislodged.
(f) Every wooden finger and finger brace shall be securely fastened to the finger board with bolts or other equivalent means. Lag screws, spikes or nails are not considered a secure fastening.
(g) All wooden fingers and wooden finger braces which project beyond the edge of the finger board adjacent to the traveling block shall be secured by one of the following methods to prevent them from falling if broken in two or if the securing bolts fail:
(1) By wrapping a guy strand or wire at least one complete turn around and through the entire length of the finger and finger brace, nailing or otherwise securely fastening the guy strand or wire to them at intervals of not more than one foot (1'), and securely fastening one end of the guy strand or wire to the derrick or mast.
(2) By zigzagging a guy strand or wire along one or more sides and through the entire length of the finger and finger brace, nailing or otherwise securely fastening the guy strand or wire to them at intervals of not more than one foot (1'), and securely fastening one end of the guy strand or wire to the derrick or mast.
(3) By other methods providing a secure fastening equivalent to those described in paragraph (1) and (2) of this subsection.
s 6570. Stabbing Boards.
(a) A stabbing board shall be provided for and used by employees where a platform is necessary for regular operating duties and the work cannot be performed from a fixed platform or monkey board. A stabbing board will not be required for repairing or maintaining the derrick or equipment.
(b) A stabbing board shall be at least twelve inches (12 " nominal) wide and shall be strong enough to withstand the total weight of the persons, equipment and material that is required or permitted to be placed thereon.
(c) Ends of a stabbing board while in position shall be fastened in such a manner that will prevent the board from accidentally shifting off its supports or falling to the floor.
(d) After use the stabbing board shall be removed from the derrick or mast unless its further immediate use is indicated.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6571. Crown Blocks.
(a) Each crown block sheave and crown block shall be securely fastened in place in a manner that will prevent it from jumping out of its bearings or becoming accidentally shifted or dislodged.
(b) Cast iron sheaves shall not be used in any crown block used for drilling or redrilling or remedial well servicing operations where rotary jars are used nor in any new crown block installed after the effective date of these orders.
Cast iron sheaves which were in use before the effective date of these orders may be used in routine well servicing operations.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6572. Catwalk and Pipe Storage Racks at Drilling Wells.
(a) Catwalk and pipe storage rack or pipe trailer, constructed and maintained to conform to good engineering practice shall be provided at every drilling well, as follows:
(1) The catwalk shall be at least four feet (4 ') wide and shall cover the space between the pipe storage racks or trailers.
(2) The catwalk shall be continuous from the derrick or mast or from the lower end of the pipe ramp, connecting the derrick or mast floor to the catwalk, to at least eight feet (8 ') beyond the outer end of the normal lengths of drill pipe to be handled on the walk.
(b) If catwalks are provided at remedial well work, they shall meet the provisions of subsection (a) of this section.
(c) If a catwalk is provided at a producing well, it shall meet the provisions of subsection (a) of this section.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6573. Auxiliary Means of Escape from Derricks and Masts.
(a) At every drilling, redrilling, and well servicing site, when operations require an employee in the derrick or mast, an auxiliary means of escape shall be immediately accessible from the outside derrick platform and from the pipe-racking platform on the mast. This auxiliary means of escape shall allow an employee to reach the ground safely if an emergency in or around the derrick or mast cuts off his escape by way of the derrick or mast ladder.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6574. Escape Lines.
(a) Escape lines shall be anchored, stretched taut and shall be free of knots, splices, broken strands, and other obstructions. In locating escape lines, due regard shall be given to topography, prevailing winds, and to the location of hazardous materials and equipment to provide for a safe dismount.
(b) Escape lines shall be installed at an angle of between forty degrees (40 degrees) and fifty degrees (50 degrees) from the horizontal if practicable, and never more than sixty degrees (60 degrees) from the horizontal.
(c) Every mechanical slide provided on an escape line shall be equipped with a brake that will permit the employee using the slide to control the rate of speed in descending.
(d) If there is no mechanical slide on an escape line, a means of protection against friction burns to the hands of employees using the escape line shall be provided.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6576. Construction and Maintenance.
(a) Every cellar and shaft and every stairway, ramp, runway, and ladder providing entry to a cellar or shaft shall be constructed and maintained to conform to good engineering practice.
(b) When employees are required to be in a cellar or shaft, the cellar or shaft and the exits from it shall be kept reasonably free from water, oil, drilling fluid and other like substances that may endanger the employees.
(c) When employees are at work in a cellar or shaft, no loose equipment or material shall be kept in the cellar or shaft or exits except what is in use or about to be used.
(d) The depth of a cellar shall be the vertical measurement between the lowest point of the floor area in the bottom of the cellar and the lowest point of ground or finished surface adjacent to the top of the cellar wall.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6577. Entrance and Exit.
(a) The cellar(s) at every well shall be provided with entrances and exits as follows:
(1) The entrance to the bottom of a multiwell cellar that is greater than two and one-half feet (2 1/2 ') deep shall be by means of a stairway and shall terminate in an unobstructed area at the cellar floor. The entrance shall be at least three feet (3 ') wide and shall have a vertical clearance of at least six and one-half feet (6 1/2 '). The entrance to the bottom of a single well cellar that is greater than two and one-half feet (2 1/2 ') deep shall be by means of a fixed or secured portable ladder or a stairway.
(A) When the running length of the cellar exceeds 25 feet, a stairway shall be provided at both ends of the cellar.
(B) In cellars exceeding twenty-five feet (25 ') running length, a fixed ladder, a secured portable ladder or stairway shall be provided with unobstructed access and located no more than fifty (50 ') feet apart. The fixed ladder side rail extension at the cellar floor may be of the removable type.
(C) Where possible, the ladder shall be so located as to provide a clearance of twenty-four inches (24 ") outward on the climbing side. Where the size of the cellar or necessary placement of equipment does not permit the full twenty-four inches (24 ") clearance, the ladder shall be located so as to provide the maximum clearance available, and in no case less than fourteen inches (14 ").
(2) Exit from the top of the ladder leading from the cellar, or from the top of the cellar wall where no ladders are required, shall be provided by one of the following means:
(A) A passageway under the derrick or mast floor leading to an unobstructed area at ground level.
(B) A fixed ladder leading to the top of the derrick or mast floor.
(C) A combination of a passageway and a fixed ladder leading to the top of the derrick or mast floor.
(3) The passageway under the derrick or mast floor shall be at least two feet (2 ') wide.
Where the height of the substructure and necessary placement of equipment does not permit a full six and one-half feet (6 1/2 ') vertical height above ground level, the maximum height available shall be used, but in no case shall it be less than four feet (4 ') above the ground level.
Beams of the substructure and pipe lines may be permitted horizontally across the passageway at ground level if an unobstructed vertical clearance of at least three feet (3 ') above such beams or pipe lines is maintained. Beams of the substructure or pipe lines shall not be permitted longitudinally within the two feet (2 ') width of the passageway.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6579. Access to and Exit from Derrick and Mast Floors.
(a) The means of access includes the means of exit.
(b) Where the difference in elevation is more than eighteen inches (18 ") between the ground, working levels, platforms or floors, access shall be provided by means of a stairway, ladder, ramp, walkway or a combination of these at the following locations:
(1) At a place along an edge of the drawworks floor or platform most remote from the derrick or mast floor as operating conditions will permit.
(2) At the end of the derrick or mast walk most remote from the derrick or mast floor.
(3) At the junction of the derrick or mast floor and derrick or mast walk.
(4) At the junction of the drilling fluid ditch walk and derrick or mast floor.
(c) The construction of stairways, ladders, ramps, and walkways shall be in accordance with the General Industry Safety Orders except where otherwise specifically provided for in these orders.
(d) Stair railings may be omitted from one side of a stairway where the installation of the railing interferes with the loading, unloading or transfer of equipment.
(e) Derrick and mast floors shall have at least one (1) means of access provided if the derrick or mast floor is over eighteen inches (18 ") but less than ten feet (10 ') above the ground level, and two (2) means of access if ten feet (10 ') or more above ground level.
The two (2) means of access shall be remotely located with respect to each other so that they will provide an alternate means of escape in case of an emergency. One (1) means of access shall be provided by a stairway, ramp, walkway, or a combination of these. A ladder may be used as the other means of escape.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6580. Safety Belts and Lanyards.
(a) A safety belt and lanyard shall be provided for each employee working on a derrick or mast at a height more than ten feet (10 ') above the derrick or mast floor or more than ten feet (10 ') above the ground level if there is no floor.
The employee shall be required to wear the belt and see that it is securely fastened to a support by the life line or lanyard.
Exceptions:
(1) Employees engaged in erecting, dismantling, demolishing or cleaning a derrick or mast or their component parts where the nature of work is such that necessitates their continuously moving from one location to another in the derrick or mast as the job or operation progresses.
(2) Employees ascending or descending or otherwise traveling to or from a working place on the derrick or mast.
(3) Employees while on platforms equipped with standard railings.
(4) Employees performing work when standing on a ladder equipped with a safety cage, ring or equivalent at the working place.
(b) Safety belt and lanyard shall be capable of supporting a dead weight of 5400 pounds and be attached to an anchor or support.
(c) Each employee shall use a safety belt in good condition and shall inspect the safety belt and lanyard for defects prior to use. Defective equipment shall be removed from service.
(d) Lanyards shall be kept as short as possible to minimize the possibility and length of a free fall. Whatever the length of the lanyard, it shall be tied off as short as possible. Where the length of the lanyard would result in a free fall greater than four feet (4 '), shock absorbing devices shall be provided. Care shall be used to see that the lanyard is attached to a fixed anchorage by means that will not reduce its required strength.
(e) All safety belt life lines shall be at least three-fourth inch (3/4 ") diameter three-strand manila rope or material of equivalent strength.
Such life lines shall be capable of withstanding a stress caused by a weight of two hundred pounds (200 lbs.) dropping a distance of six feet (6 ').
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6582. Portable Telescoping Derrick or Mast.
Every portable telescoping derrick or mast shall be equipped with a safety device designed to engage automatically to prevent the upper section of the derrick or mast descending at an uncontrolled rate of speed if the lifting mechanism fails when the upper telescoping section is being raised or lowered.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6583. Hydraulic Lifts for Derricks and Masts.
Where hydraulic lifts are employed to raise or lower a derrick or mast between the horizontal and vertical positions, or to raise or lower the top telescoping section of a derrick or mast, the hydraulic fluid system shall be equipped with a device located within the cylinder, or as closely connected to the cylinder as is feasible, to prevent either section descending at an uncontrolled rate of speed if the fluid piping system fails. This may be accomplished by the use of an excess flow device, a restricting orifice, or other equally effective means.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6584. Telescoping Gin Pole Mast: Locking Device.
Every telescoping gin pole mast shall be equipped with a locking device for holding the top telescoping section of the mast in its extended working position. This device may be operated from ground level or at various positions on the mast, and shall be secured with a safety chain or other equivalent means to prevent the locking device from falling.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6586. Derricks and Masts.
Every derrick and mast in use at a well shall be guyed, braced, or otherwise engineered to prevent overturning in accordance with the manufacturer's recommendations and/or good engineering practice. Stake type anchors shall not be used as guy line anchors.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6587. Portable Cantilever Masts.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6589. Gin Pole Masts, Stationary or Portable: Crown Platforms and Railings.
(a) Every portable and stationary gin pole mast (telescoping type excepted) shall be equipped with a crown platform that will provide access to the crown block, unless lines can be reeved on the crown block sheaves by an employee standing on the mast ladder, in which case a ladder safety cage may be provided in lieu of the crown platform.
(b) The platform shall be not less than twenty-four by twenty-four inches (24 " x 24 ") in size. Smaller platforms may be used if employees are provided with and required to use safety belts and lanyards.
(c) The outer edges of the platform, except for the ladder opening, shall be equipped with standard railings and toeboards.
(d) When a ladder safety cage is provided in lieu of a crown platform it shall be:
(1) At least three and one-half feet (3 1/2 ') long.
(2) At such an elevation as will provide protection against an employee falling from the ladder while standing on it to reeve lines over the sheaves.
(3) Constructed and installed to provide a clearance on the climbing side of the ladder of at least twelve inches (12 ") but not more than fourteen inches (14 ") from each side of a line drawn vertically through the center of the ladder width, and of at least twenty inches (20 ") but not more than twenty-four inches (24 ") outward.
(e) On every telescoping type gin pole mast, one of the following provisions shall be made for lubricating the crown block sheaves:
(1) Lowering the upper section of the mast to a point where the lubricant feeders can be reached from the top of the ladder on the lower section.
(2) Providing a remote oiling system by which the crown block sheaves can be lubricated from the top of the lower section or from ground level.
(3) Extending the ladder on the lower section of the mast to crown block level.
(4) Lubricating the crown block sheaves while the mast is in horizontal position.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6590. Portable Cantilever Derricks and Masts: Crown Platforms and Railings.
(a) A platform at least twenty-four inches (24 ") wide shall be provided approximately level with the top of the derrick or mast and continuous along at least three sides of the crown block. This platform shall provide access to the sheaves and lubricant feeders if oiling is done at the crown block level.
Note: If the crown block is of such size and configuration that it can be safely inspected and serviced from one side, the crown platform may be limited to one side only. A smaller platform may be used if employees are provided with and required to use safety belts and lanyards.
(b) The outer edges of the platform shall be equipped with standard railings and toeboards.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6591. Portable Telescoping and Jackknife Derricks and Masts: Crown Platforms and Railings.
(a) A platform at least twenty-four inches (24 ") wide shall be provided completely across any one side of the derrick or mast and approximately level with the top of the derrick or mast. Such platform shall provide access to the crown block sheaves and their lubricant feeders if lubricating is done at the crown block level. A smaller platform may be used if employees are provided with and required to use safety belts and lanyards.
(b) The outer edges of the platform or platforms shall be equipped with standard railings and toeboards.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6592. Portable Cantilever, Jackknife, and Telescoping Derricks and Masts: Access and Lubrication.
(a) When lubricant feeders are piped down to the pipe racking platform for servicing, and the crown platform is used for maintenance or emergency work only, the width of the crown platform may be reduced to eighteen inches (18 "). When the crown platform is reduced to eighteen inches (18 "), the ladderway opening shall be clear and unobstructed to a distance of at least twenty inches (20 ") outward on the climbing side of the ladder.
(b) Access from the ladder to the crown platform shall be provided as follows:
(1) When access to the crown platform is by means of a ladderway opening in the platform, the opening shall be not less than twenty-two inches by twenty-two inches (22 " x 22 ").
(2) The platform shall be designed so that the ladderway opening is clear and unobstructed to a distance of at least twenty inches (20 ") outward on the climbing side of the ladder.
(3) The ladder side rails shall extend three and one-half feet (3 1/2 ') above the platform level unless suitable handholds are provided.
(4) Where access to the crown platform is by means of a ladder on the outer edge of the platform, the ladder shall terminate at platform level.
Entry to the platform shall be provided by an opening in the standard railings and toeboards, not less than fourteen inches (14 ") and not more than sixteen inches (16 ") wide.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6594. Platforms and Access Runways.
(a) Platforms shall be provided on masts for employees to stand on to handle pipe, sucker rods, or other equipment racked in or on the derrick or mast. These platforms shall be at least eighteen inches (18 ") wide, and shall cover the space between the working edges and the main structural member to which they are attached.
(b) Access runways or platforms not less than twelve inches (12 ") wide shall be provided between the derrick or mast ladder and the pipe and sucker rod platforms; provided, however, that a minimum width of ten inches (10 ") will be accepted on platforms installed before June 13, 1952. The maximum allowable distance between the ladder and the access runway or platform and between the pipe or sucker rod platform and the access runway or platform shall be eighteen inches (18 ").
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6595. Portable Cantilever Derricks and Masts: Platforms.
(a) A platform at least twenty-four inches (24 ") wide shall be provided completely across each outer side of the derrick or mast adjacent to and level with the ends of the pipe-racking support. The outer edges of these platforms shall be equipped with standard railings and toeboards. If the design of a derrick or mast is such as to make outside platforms impractical, then inside platforms at least twenty-four inches (24 ") wide and adjacent to and level with the ends of the pipe-racking support may be used.
(b) Access shall be provided from the derrick or mast ladder to these platforms in a manner described in Section 6594(b).
Exception: On cantilever derricks and masts equipped with an adjustable pipe-racking support, the outside platform may be not more than thirty inches (30 ") below or twenty-four inches (24 ") above the pipe-racking support provided that railing extensions are installed for safe access between the outside platform and pipe-racking support.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6596. Pipe-Racking Supports.
(a) On every derrick or mast where the pipe, sucker rods, or other equipment being handled is racked on the derrick or mast, a pipe-racking support primarily designed to prevent pipe from falling shall be provided near the top of the stands of pipe, sucker rods, or other equipment. This support shall be so constructed that it will, with the mast, completely surround the pipe or other racked equipment.
(b) A standard railing shall be provided on the pipe racking support through its entire length to within twenty-four inches (24 ") but not closer than fourteen inches (14 ") of the mast leg adjacent to the ladder.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6597. Portable Cantilever, Jackknife, and Telescoping Masts: Pipe-Racking Supports.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6599. Ladders for Derricks and Masts.
(a) Except as provided for gin pole masts in Section 6600, every derrick or mast shall be equipped with a fixed ladder or ladders arranged to provide access from the ground, floor level, or a base landing on the vehicle on which it is mounted, to the crown platform and to any intervening fixed platform in or on the derrick or mast.
(b) The width of ladders shall be at least twelve inches (12 "), measured from the inside of the side rails except that ladders for telescoping type derricks or masts shall be not less than eleven inches (11 ").
(c) Rung or step spacing shall be uniform and parallel, and shall be at least twelve inches (12 ") but not more than sixteen inches (16 ") from top to top of consecutive rungs or steps. The clear space above the rungs or steps shall be at least six inches (6 ").
(d) Where sections of ladders are spliced, they shall be supported at the splice so the ladder will be aligned and the splice will not reduce the strength of the ladder.
(e) On the climbing side of the ladder a clear and unobstructed space shall be maintained of at least twelve inches (12 ") from each side of a line drawn vertically through the ladder width, and of at least twenty-four inches (24 ") outward, but this does not forbid the use of a safety device to prevent or control falls from a ladder when the use of the device is approved by the Division or designed and constructed in compliance with recognized national standards such as ANSI, UL, or Factory Mutual. This subsection does not apply to ladderway openings in platforms.
(f) Throughout the length and width of the back of the ladder, a space of at least four inches (4 ") shall be maintained clear of all obstructions that present a tripping hazard, prevent adequate footing, or prevent a secure handhold to the ladder.
(g) No ladder shall lean backward from the vertical.
No ladder shall lean sideways more than five and three-fourths degrees (5 3/4 degrees) from the vertical, provided, however, that ladders for the cantilever type derricks or masts shall not lean sideways more than three degrees (3 degrees).
Ladders shall be so constructed that the rungs or steps are approximately horizontal at the normal operating position of the derrick or mast and never more than two degrees (2 degrees) from the horizontal.
(h) The lowest rung or step of the ladder or ladder section shall be not more than eighteen inches (18 ") above the ground, floor, or platform landing.
(i) Ladders shall be constructed and secured to the derrick or mast to support all expected working loads.
(j) The top end of each terminating ladder or ladder section providing access to any fixed platform in or on a derrick or mast shall extend at least three and one-half feet (3 1/2 ') above the platform unless suitable handholds are provided.
(k) Unless a ladder climbing assist device is used, continuous ladders or ladder sections below the racking platform of the derrick or mast shall be provided with platforms at intervals not exceeding forty feet (40 ') upon which employees may rest.
Such platforms shall be not less than twelve inches (12 ") in depth nor less than eighteen inches (18 ") in width. handholds shall be provided above the rest platform. Toeboards and railings are not required.
(l) If ladders are offset, such offsets shall be located at ladder offset rest platforms only.
(m) Ladder cages are not required on any derrick or mast except as provided for in Section 6600 (b) of this article and Section 6589 (a) of Article 25.
(n) Counterweighted ladder climbing assist devices may be used in conjunction with a ladder climbing safety device or in conjunction with rest platforms on the ladder in conformance with these orders. If the assist device is used in conjunction with ladders with rest platforms, the counterweight shall weigh no more than 100 pounds. Employees using the assist device shall be instructed in the proper use of the device, which shall require the use of both hands and feet in contact with the ladder as if climbing with no assist device.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6600. Pole Steps for Gin Pole Masts.
(a) Pole steps so arranged as to provide access from the ground or floor level, or from a base landing platform on the bed of the vehicle on which the mast is mounted, to each platform on the mast shall comply with the requirements in subsections (b) and (d) of this section. (See accompanying illustration for pole steps for portable and stationary gin pole masts.)
(b) When an employee has to perform any duty at the crown block level of a telescoping type gin pole mast in its operating position at a well, the upper section of the mast shall be lowered to a point where the duties can be performed from the pole steps on the lower section of the mast, unless access is provided to the crown block by means of a fixed ladder having a safety cage at the crown block level. (See accompanying illustration for pole steps for portable and stationary gin pole masts.)
(c) Ladder cages are not required on any portable or stationary gin pole mast except as provided for in subsection (b) of this section.
(d) Pole steps, as provided for in subsections (a) and (b) of this section, are acceptable as a type of ladder on the leg or legs of a gin pole mast if the leg is not more than sixteen inches (16 ") in diameter and the steps are constructed and installed as follows:
(1) Pole steps shall be designed, constructed, installed and maintained to conform to good engineering practices.
Diagram relocated at the bottom of Section 6600
(2) The length of the tread surface of the steps shall be not less than five and three-eighths inches (5 3/8 ") and not more than eight inches (8 "). For stirrup type steps, this minimum, clear length, shall be maintained to a distance of at least four inches (4 ") above the tread surface of the step before the material is curved or tapered toward the mast.
(3) Steps shall alternate, one step on one side of the mast, the next step on the other side of the mast, and shall be uniformly spaced in elevation at intervals of at least twenty-four inches (24 "), but not more than thirty-two inches (32 ") on each side of the mast.
The steps on each side of the mast shall be in vertical alignment.
(4) The outer ends of hook head type steps shall be turned upward at least three-fourths inch (3/4 ").
POLE STEPS FOR PORTABLE AND STATIONARY GIN POLE MASTS
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6601. All Masts: Ladderway Openings for All Platforms Other Than Crown Platforms.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6603. Tools, Equipment, and Materials in Derricks or Masts.
(a) Only such tools, equipment or materials as are essential to operations shall be kept in a derrick or mast at an elevation above the floor. Provisions shall be made to prevent them from falling.
(b) When laying down or picking up pipe or other equipment with elevators, the elevator door shall face upward if practicable.
If this is impracticable, employees shall not be required or permitted to be in a location where they would be endangered by falling pipe or other equipment should the elevator door become accidentally opened.
Exception: This order does not apply to handling sucker rods.
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6605. Back-Up Posts, Kelly Pull-Back Posts, Back-Up and Safety Lines for Pipe Tongs.
(a) Back-up and safety lines shall be wire rope so designed, constructed, installed and maintained to conform to good engineering practices. End fastenings used on the rope shall be made in accordance with the manufacturer's recommendation, except that a thimble is not required.
A "contractor's standby" (half hitch and clips) shall not be used as end fastenings on these lines.
(b) Tong back-up posts, kelly pull-back posts, tong back-up lines and safety lines shall not be attached to derrick or mast girts or legs unless the legs are so constructed and the lines so attached that the stresses imposed will not result in structural damage to the legs.
(c) Each tong safety line shall be attached to prevent the tongs being pulled into the cathead or braking mechanism or, traveling with the rotating pipe.
A back-up line may also serve as a safety line.
Exception: This subsection does not apply to tong back-up posts, tong back-up lines or safety lines in well servicing operations when the outside diameter of the pipe being handled is not over four and one-half inches (4 1/2 ").
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
s 6607. Handling Heavy Tools at Drilling Wells.
(a) At drilling wells provisions shall be made for the safe handling of heavy tools between transporting vehicle and the derrick or mast floor or storage platform. (continued)