Obtain a work permit by climbing to a height

Yes, a high-altitude work permit is required. It is advisable to have communication devices at heights of over 30 meters.

In this case, a high-altitude work permit must be obtained

This post was last edited by lyhh9024 on 2010-1-10 at 13:59. AQ 3025—2008 \"Safety Regulations for Work at Height in Chemical Production Units\": 3.1 Work at height refers to any work carried out at a height of 2 meters or more above the reference level from which a fall could occur. 3.2 Falling datum plane: The horizontal plane from the working position to the lowest point of impact is called the falling datum plane. 3.3 Falling height (work height): The vertical distance from the working position to the reference plane for falls is called the falling height (also known as work height). 5.1.5 Units carrying out work at heights must obtain an \"Operation Permit\" and implement safety protection measures before proceeding with the work. In accordance with the above regulations, the owner’s question will be addressed by considering the following scenarios: 1. The ladder leading to the chimney and the circular platform located 30 meters up the chimney meet the relevant requirements: 1.1 When carrying out repairs or maintenance work on the flue gas handling equipment at a distance of less than 2 meters from the circular platform (the reference surface for falls), it is not necessary to obtain a permit for working at heights ； 1.2 When performing repair and maintenance work on online flue gas facilities at a distance of 2 meters or more from the circular platform (the reference surface for falls), a high-altitude safety work permit must be obtained ； 2. The circular platform located 30 meters away from the chimney does not meet the relevant requirements; that is, it cannot be used as a reference surface for falls during work, and the ground should instead be used as such a reference surface. In this case, a high-altitude safety permit must be obtained in accordance with the regulations for work at extremely high heights

A high-altitude work permit must be obtained, and the necessary construction conditions must also be met, such as: 1. Weather. Operations are not permitted in conditions of rain, snow, heavy fog, or winds of force 6 or above ； 2. Operators. Good physical condition, no contraindications for working at heights, in good mental state, and properly equipped with protective gear (wear safety helmet and safety belt, as well as work clothes and anti-slip shoes; insulating shoes are required for electrical work) ； 3. Tools for work. Before starting the task, check whether all tools are available and free of defects; keep the tools in a tool bag ； 4. Guardianship. There should be a dedicated person on site for supervision; given the high altitude, it is advisable to have communication devices such as walkie-talkies to facilitate communication.

Theoretically, work at a height of over 2 meters requires proper authorization

It depends on the type of work being carried out on this platform. If work is done while standing on the platform, it may not be necessary to obtain a height work permit; however, if there is a certain working height above the platform, then a height work permit is required. In my opinion, the 2M limit does not apply in such cases – even if the height is below 2M, a height work permit is still needed. Generally, the height of the platform’s fencing does not exceed 1.5M, and the platform itself is not very wide. When a person stands at a certain height on the platform, it’s possible that the fencing effectively no longer exists, and in that case, the reference level for falling should be taken as the ground level... The above are just my personal opinions for reference only; please point out any errors if there are any!

A high-altitude work permit must be obtained to ensure that the workers’ physical condition meets the requirements for working at heights; a dedicated supervisor should be assigned, and safety protection equipment must be provided.

1 Subject matter and scope of application: This standard specifies the definition, grading and classification of work at heights in chemical production areas, safety requirements and protection measures, as well as the management of the \"Work Permit for Safe Work at Heights\". This standard applies to work at heights in the production areas of chemical enterprises. 2 Definitions This standard adopts the following definitions. 2.1 Working at heights Any work carried out at a height of 2 meters or more above the reference level for falling, where there is a risk of falling, is referred to as working at heights. 2.2 Reference level for falling height The horizontal plane from the working position to the lowest point of impact is called the reference level for falling height. 2.3 High-altitude work in different temperatures: High-altitude work carried out in high or low temperature conditions. High temperature refers to a condition in which the work area has productive heat sources, and the temperature there is 2°C or more higher than the designed outdoor ventilation temperature for summer in that area. Low temperature refers to an air temperature at the work site below 5°C. 2.4 Working at Heights with Live Electricity: It refers to high-altitude work carried out by workers in the production of electricity and in the maintenance of power supply and consumption equipment, where they employ ground (zero) potential or equal potential methods to approach or come into contact with live parts in order to work on live equipment and lines. Those at a distance less than that shown in the table below are considered to be in proximity to a live conductor. Voltage level (KV): Below 10, 20–35, 44, 60–110, 154, 220. Distance (M): 1.7, 2, 2.2, 2.5, 3, 4, 3. Classification and grading of work at heights: 3.1 Grading of work at heights. 3.1.1 When the working height is between 2 meters and 5 meters, it is classified as level 1 work at heights. 3.1.2 When the working height is between 5 meters and 15 meters, it is referred to as level 2 high-altitude work. 3.1.3 When the working height is between 15 meters and 30 meters, it is referred to as level 3 high-altitude work. 3.1.4 When the working height is above 30 meters, it is referred to as extra-high-altitude work. 3.2 Categories of work at heights Work at heights is divided into special work at heights, work at heights in chemical processing environments, and general work at heights. 3.2.1 Special high-altitude work 3.2.1.1 High-altitude work in strong winds, carried out when the gust wind force is at level 6 (wind speed of 10.8 meters/second) or above. 3.2.1.2 High-altitude work at different temperatures carried out in high-temperature or low-temperature environments. 3.2.1.3 High-altitude work in snowy conditions during snowfall. 3.2.1.4 High-altitude work in rainy conditions during rainfall. 3.2.1.5 Nighttime work at heights carried out entirely with artificial lighting outdoors. 3.2.1.6 Working at heights under live conditions when approaching or contacting live parts. 3.2.1.7 Working at height in a suspended position without a foothold or a secure footing. 3.2.2 High-altitude work in chemical processing environments 3.2.2.1 High-altitude work carried out on slopes with a gradient greater than 45 degrees. 3.2.2.2 Work at heights carried out above or near lifting (hoisting) openings, pits, wells, tanks, ditches, holes, etc. 3.2.2.3 High-altitude work carried out in areas prone to fire, explosion, poisoning, or burns, or near rotating equipment. 3.2.2.4 Work at heights carried out on chemical containers, equipment such as towers, kettles, furnaces, and tanks, as well as overhead pipelines, that lack platforms or guardrails. 3.2.2.5 Working at heights inside equipment such as towers, kettles, furnaces, and tanks. 3.2.3 General high-altitude work: High-altitude work other than special high-altitude work and high-altitude work in chemical processing environments. 4 Safety Requirements and Protections for Work at Heights 4.1 Safety Requirements for Work at Heights 4.1.1 Units carrying out work at heights must obtain a \"High-Height Safety Work Permit\" and implement safety protection measures before proceeding with the work. The format of the “High-Place Work Permit” is shown in the appendix. 4.1.2 The approver of the ‘High-Place Work Permit’ must visit the high-place work site and verify that the safety measures are in place before granting approval for the work to be carried out at that height. 4.1.3 Personnel working at heights must receive safety training and be familiar with the site environment and construction safety requirements. Persons with occupational contraindications, as well as those who are old and frail, overly fatigued, have poor eyesight, or are under the influence of alcohol, are not allowed to work at heights. 4.1.4 Before working at heights, workers shall check the \"High-Height Safety Work Permit\"; construction may only proceed after it has been confirmed that all safety measures have been implemented, otherwise they have the right to refuse to carry out the work. 4.1.5 Workers performing work at heights must wear protective equipment as required; they should check such equipment before starting work, and use fall prevention devices as well as climbing tools and equipment properly during the work. 4.1.6 For work at heights, a supervisor should be assigned to oversee the workers performing such tasks, and this supervisor must remain at their post. 4.2 Safety Protection for Work at Heights 4.2.1 Before carrying out work at heights, the construction unit must establish safety measures and record them in the \"High-Height Safety Work Permit\". 4.2.2 Materials, tools, and equipment that do not meet the safety requirements for work at heights shall not be used. 4.2.3 Tools, materials, parts, etc., used for work at heights must be placed in tool bags; no items should be held in the hands when going up or down ； Throwing tools, materials, and other items is prohibited ； When tools and materials that are prone to sliding or rolling are placed on scaffolds, measures should be taken to prevent them from falling. 4.2.4 When working at locations where vent pipelines are present in or near areas where chemical hazardous materials are produced or stored, it is necessary to contact the workshop supervisor or shift leader in advance, establish a communication signal, and enter this signal in the remarks section of the ‘High-Altitude Safety Work Permit’. 4.2.5 When working with lightweight materials such as asbestos shingles and corrugated metal sheets, a sturdy scaffold board must be laid down and secured, with anti-slip measures in place on the scaffold board. 4.2.6 When work at heights is carried out concurrently with other types of work, movement must take place along designated routes; vertical work is prohibited. If vertical work is necessary, reliable isolation measures must be implemented. 4.2.7 When working at heights, it is necessary to maintain communication with the ground; appropriate communication tools should be provided based on the conditions on site, and a dedicated person should be assigned to handle these communications. 4.2.8 When performing work at heights on live electrical equipment using the ground (zero) potential or equal potential method, insulated tools must be used or equipotential suits must be worn. 5 Management of the ‘High-Place Work Permit’ 5.1 High-place work at Level 1, as well as high-place work in chemical processing environments as specified in 3.2.2.1 and 3.2.2.2, is approved by the workshop ； High-altitude work at level 2 and level 3, as well as high-altitude work in chemical processing environments as specified in 3.2.2.3 and 3.2.2.4, shall be reviewed by the workshop before being submitted to the factory’s safety management department for approval ； High-altitude work of the top category, special high-altitude work, and high-altitude work in chemical processing conditions as specified in 3.2.2.5 shall be reviewed by the plant’s safety department before being submitted to the plant manager in charge or the chief engineer for approval. 5.2 The construction supervisor must submit an application to the approval authority, in accordance with the grading and categories of work at heights, to obtain a \"High-Height Safety Work Permit\". The ‘High-Altitude Safety Work Permit’ is issued in three copies: one is given to the worker performing the task, one to the person in charge of the construction, and one is retained by the safety management department. 5.3 For projects with a long construction period, the construction supervisor should frequently conduct on-site inspections, address any potential hazards promptly, and keep proper records. If there are significant changes in the construction conditions, a new High-Altitude Safety Work Permit must be obtained. Appendix (standard appendix): High-Place Work Permit. Applicant organization, applicant, location of work, time of work, details of the work to be carried out, working height, category of work. Person in charge of the construction company, safety measures, supervisor, responsibilities. Person in charge of the project, comments. Reviewing department’s comments, approving department’s comments. Remarks. Explanation for the formulation of the Chemical Industry Standard of the People’s Republic of China – “Safety Regulations for High-Place Work in Industrial Sites”. Chemical production is mostly carried out on a continuous basis; therefore, to ensure safety during high-place work during maintenance activities, it is necessary to establish safety regulations for such work. I. Origin of the project: This standard was proposed by the Department of Technical Supervision of the Ministry of Chemical Industry of the People’s Republic of China, and Zhejiang Juhua Group Company was entrusted with drafting it. II. Principles and Objectives of Formulation: In order to implement relevant safety regulations, and in line with the safety requirements for various operations in the production areas of chemical enterprises, as well as referring to relevant standards in the chemical industry, definitions for high-altitude work in such areas, safety requirements, and rules for managing the \"High-Altitude Safety Work Permits\" have been established, all of which contribute to ensuring the safety of high-altitude work in the production areas of chemical enterprises. III. Subject Content The main contents of this standard are based on the \"Safety Management System for Chemical Enterprises\" issued by the former Ministry of Chemical Industry, and have been formulated in light of the actual production practices of chemical enterprises over the years. IV. Preparation Process After the drafting of this standard, written opinions were sought from some enterprises. It was developed through two rounds of discussions and revisions by safety management officials from large chemical enterprises, organized successively by the Technical Supervision Department of the former Ministry of Chemical Industry, as well as the Planning and Development Department and the Policy and Regulations Department of the **Petroleum and Chemical Industry Bureau.

3 Definitions 3.1 Working at height: Any work carried out at a height of 2 meters or more (including 2 meters) above the reference level for potential falls is considered working at height. a) When the working height is between 2 meters and 5 meters, it is classified as level 1 high-altitude work, with a possible fall radius of 3 meters ； b) When the working height is between 5 meters and 15 meters, it is classified as level 2 high-altitude work, with a possible fall radius of 4 meters ； c) When the working height is between 15 meters and 30 meters, it is classified as level 3 high-altitude work, with a possible fall radius of 5 meters ； d) Work at a height of 30 meters or more is classified as extra-high-altitude work, with a possible fall radius of 6 meters. 3.2 Special high-altitude work a) High-altitude work carried out in rainy or snowy weather. b) High-altitude work carried out at night. c) Working at heights in confined spaces. d) Working at heights near or in contact with live electrical conductors. e) Rescue at heights in case of sudden disasters. f) High-altitude work carried out in locations where the emission of toxic and harmful gases and dust exceeds the permitted concentrations. g) Working at heights in high-temperature environments of 40°C and above, as well as in low-temperature environments of –20°C and below. 3.3 100% anchoring: All personnel working at heights must always be secured with safety belts (including while walking), and the anchoring points must be firm, safe, and reliable. 3.4 Personal fall protection systems: Systems used to prevent people from falling from working surfaces. It consists of anchors, connectors, and a full-body safety belt; it may also include suspension ropes, deceleration devices, life ropes, or appropriate combinations of these devices. 3.5 Safety belt: A part of the fall protection equipment used to support the human body in the event of a fall. At the construction site of Xinjiang Kuishan Baota Petrochemical Co., Ltd., only safety belts with double hooks and double ropes are permitted for fall protection. 3.6 Edge work: High-altitude work at construction sites where there are no protective barriers at the edge of the working area, or where the height of such barriers is less than 0.8 meters. 3.7 Work at openings: Work at heights adjacent to holes and openings, including work at the edges of pile holes, trenches, and pipe openings on the construction site and along pathways, at depths of 2m or more. 3.8 Climbing operations: High-altitude work carried out under climbing conditions, using building structures, climbing equipment on scaffolds, or ladders and other climbing aids. 3.9 Working at height in suspended conditions: This refers to working at heights in an environment where there is no solid surface beneath the worker’s feet, or where a secure footing is not available. 3.10 Cross-operation: High-altitude work carried out simultaneously at different levels on a construction site, with interconnected spaces. 4 Responsibilities 4.1 The HSE Management Team is responsible for formulating regulations for work at heights. The HSE engineer issues high-altitude work permits as required, and ensures that the safety measures for high-altitude work are implemented. 4.2 Responsibilities of the supervision unit 4.3.1 Responsible for checking the implementation of the construction contractor’s regulations regarding work at heights on site, as well as the enforcement of safety measures. 4.3.2 Stop any violations; in serious cases, suspend operations for rectification. Issue a high-altitude work permit as required. 4.4 The construction contractor shall earnestly implement the regulations on work at heights and related management requirements. 5 Management Content and Requirements 5.1 General Requirements 5.1.1 Minimize work at heights as much as possible by improving construction methods and adopting advanced technologies (such as increasing the prefabrication depth). Whenever workers are working at a height of 2 meters or more, fall prevention measures must be in place. 5.1.2 In areas where work is carried out at heights, a no-entry zone should be designated based on the falling radius, and the area should be enclosed; warning signs such as “No entry for unauthorized persons” and “Access prohibited” should be posted. Others are prohibited from passing or staying below the work site. 5.1.3 The construction unit shall install prominent safety warning signs at dangerous locations such as the entrance to the construction site, scaffolds, access passages, stairways, elevator shafts, openings, bridge entrances, tunnel entrances, and the edges of foundation pits. Safety warning signs must comply with **standards. 5.1.4 Outdoor work at heights shall not be carried out when there are weather conditions such as winds of force 6 or above, thunderstorms, heavy rain, or dense fog ； After severe weather conditions such as blizzards and heavy rain, a thorough inspection of the facilities related to work at heights must be carried out before resuming operations. 5.1.5 Tools and spare parts used for work at heights must be placed in tool bags. When climbing, workers must use the designated routes and must not hold any objects in their hands ； Tools used for work at heights should have measures to prevent them from falling and causing injury; in particular, materials or tools must not be thrown from heights ； Tools and materials that are prone to rolling or slipping must not be piled on load-bearing scaffolding (materials shall not be piled on non-load-bearing scaffolding). The materials used should be placed steadily, without interfering with operations, and fall prevention measures must be in place ； Once the work is completed, all tools, miscellaneous materials, spare parts, and other items that could fall should be cleared away promptly to prevent injuries from falling objects. Workers are not allowed to fight or play around while working. 5.1.6 When performing welding or cutting operations at heights, flammable and explosive materials within the range where sparks may fly must be removed in advance, or necessary measures must be taken to prevent sparks from spreading. 5.1.7 When performing work at heights using suspension baskets, scaffolding, working platforms at height, or by entering confined spaces, the corresponding management regulations must also be followed. 5.1.8 For work at heights of 30 meters or more and in other special high-altitude situations, communication facilities for contacting the ground must be installed specifically (such as walkie-talkies), and a dedicated person shall be responsible for maintaining these communications. 5.1.9 Basic requirements for workers working at heights a) Workers engaged in work at heights or in tasks involving climbing on scaffolds should be familiar with the professional techniques and operating procedures related to their job, and should undergo regular health checks at medical institutions at or above the county level in accordance with relevant requirements. Those who have been diagnosed by a physician as having hypertension, anemia, heart disease, high myopia, epilepsy, or other conditions that make them unsuitable for work at heights, climbing tasks, or work involving working on elevated structures shall not engage in such activities. b) When working at heights, on cliffs, or steep slopes without protective measures, workers must use safety belts as required. The safety belts should be worn in such a way that they are positioned high but low down, and the attachment points must be safe and secure; it is prohibited to attach them to moving or unstable objects. 5.2 Issuance of High-Altitude Work Permits 5.2.1 A “High-Altitude Work Permit” must be obtained for all high-altitude work. 5.2.2 For level 1 and level 2 high-altitude work, the construction contractor shall issue the High-Altitude Work Permit on its own; such permits must be submitted to the owner’s HSE engineer and the supervision unit for record-keeping, and the owner’s HSE engineer and the supervision unit shall conduct inspections and supervision regarding the issuance of these permits. For high-altitude work at level 3 and above, as well as special types of high-altitude work, the construction contractor must apply to the owner’s HSE engineer and the supervision unit for a \"High-Altitude Work Permit\" at least 24 hours in advance, and ensure that all safety measures specified in the permit are implemented (see attachment for details). 5.2.3 The person in charge of the construction contractor shall appoint a supervisor at the high-altitude work site and be responsible for implementing safety measures and emergency response plans. 5.2.4 The on-site supervisor of the construction contractor shall fill in the relevant information on the high-altitude work permit and submit it to the supervision unit for approval. 5.2.5 The supervision engineer shall inspect on-site the implementation of safety measures and sign to confirm them. The approval for various special high-altitude operations must be signed by the owner’s HSE engineer and the director or their representative. 5.2.6 The high-altitude work permit is issued in three copies: one copy is retained by the supervisor, one copy is given to the construction contractor, and one copy is given to the general contractor. 5.2.7 The supervisor at the work site must carry the work permit with them at all times, and a copy of the permit must also be posted in a visible location at the work site. 5.3 Management requirements for construction contractors 5.3.1 The person in charge of the work shall organize training for workers performing work at heights before such work begins, so that they are aware of the risks involved and can take all necessary preventive measures. Workers should be able to use the appropriate fall protection systems correctly. 5.3.2 Before ascending heights, the construction supervisor shall provide on-site safety training to all personnel. Working at heights is prohibited if staff are found to be under the influence of alcohol or in a lethargic state. 5.3.3 The construction contractor shall provide all workers performing work at heights with qualified personal protective equipment and fall prevention devices (such as safety belts and safety ropes) free of charge. 5.3.4 Before carrying out work at heights or on scaffolding, the person in charge of the work must inspect the protective facilities as well as the personal safety equipment ； Work must not be forced or carried out recklessly in the presence of safety hazards. When entering the construction site, workers must wear safety helmets and fasten their helmet straps. 5.3.5 Assign qualified personnel to regularly inspect all fall protection equipment on site, and record and retain the inspection results. 5.3.6 At all work sites at heights, there must be no fewer than two workers, and a designated person shall be assigned to supervise them. The supervisor is responsible for ensuring that safety measures are in place and emergency plans are implemented, monitoring to ensure that workers complete their tasks as required during working hours, promptly correcting any violations of regulations, and ordering work to be stopped in case of any danger. During the task, the supervisor must not leave their post. 5.3.7 Prepare targeted JHAs and ensure their thorough implementation. 5.4 Management requirements from the owner’s HSE engineer and the supervision unit: The owner’s HSE engineer and the professional supervision engineer are responsible for ensuring that safety measures for work at heights are implemented on site, checking the compliance and suitability of the JHA, and signing to confirm this. 6 Basic Conditions for Work: High-altitude work in construction mainly includes five basic types: work at edges, work at openings, climbing work, work in suspended positions, and cross-work. 6.1 Basic requirements for work at edges 6.1.1 The following working conditions fall under the category of work at edges: a) areas around foundation pits, unprotected balconies, material platforms, etc.; b) areas around unprotected floors and roof surfaces; c) unprotected stairways and flight ends; d) the sides of passages associated with shafts, construction elevators, and scaffolding; e) areas around various vertical transportation discharge platforms; f) areas around unprotected high-altitude work platforms. 6.1.2 For work at such high-altitude edges, protective measures must be implemented in accordance with the following rules: a) Protective railings must be installed around foundation pits, as well as around balconies, material platforms, and cantilevered platforms that lack railings or guardrails, along the edges of canopies and overhangs, on rooftops and floors without external scaffolding, and around water tanks and water towers. b) A safety net must be installed around the perimeter of second-floor levels where the height of the primary wall exceeds 3.2m, as well as around the perimeter of floors with no external scaffolding and a height exceeding 3.2m. c) Temporary guardrails must be installed at the stairways and the edges of stair treads in cases of layered construction. Formal protective railings should be installed at the top of the staircase as the construction progresses. d) Guardrails must be installed on both sides of the passageways in the building, at the derricks, construction elevators, scaffolding, etc. A safety canopy should be installed above the ground passage. The area in the middle of the double-drum derrick passage should be separated and enclosed. e) For various vertical transportation receiving platforms, in addition to protective railings on both sides, safety doors or movable protective railings should also be installed at the platform entrances. 6.2 Basic requirements for work at openings 6.2.1 Stairwells, elevator shafts in buildings, as well as openings reserved for equipment installation; additionally, access points, passageways, and work openings that need to be reserved for construction purposes all fall under the category of work at openings. 6.2.2 When working at openings, or in other openings that arise due to engineering or procedural requirements and pose a risk of falling or endanger personal safety, protective measures must be installed in accordance with the following provisions: a) For openings in panels and walls, sturdy covers, protective railings, safety nets, or other fall-prevention devices must be provided. b) The elevator shaft opening must be equipped with protective railings or fixed gates ； A safety net should be installed in the elevator shaft every two floors, or at most every 10 meters. c) At the tops of pile holes such as steel pipe piles and bored piles, at the tops of cup-shaped or strip-shaped foundations, in unfilled trenches, as well as at manholes, skylights, floor doors, etc., stable covers should be installed for hole protection. d) Near the access routes at the construction site, at various openings and pits, in addition to installing protective facilities and safety signs, red lights should also be installed for warning at night. 6.2.3 When protective railings, covers, safety nets, or gates are installed at openings depending on the specific circumstances, the following requirements must be met: a) Openings in floors, roofs, and platforms whose shorter side dimensions are less than 25 cm but greater than 2.5 cm must be covered with solid covers. The cover plate should prevent movement or displacement. b) For openings with side lengths of 25–50 cm in areas such as floor slabs, openings created during the installation of precast components, and temporary openings resulting from missing parts, covers made of bamboo, wood, etc., can be used to cover these openings. The cover plate must be able to remain evenly supported on all sides, and there must be measures to secure its position. c) For openings with side lengths of 50–150 cm, a grid made of steel pipes fastened together with fasteners must be installed, and bamboo planks or scaffold plating must be laid over it. A protective mesh can also be formed using rebar embedded within the concrete slab, with the spacing between the rebar bars not exceeding 20 cm. d) For openings with a side length of over 150 cm, protective railings should be installed around them, and safety nets should be placed beneath the openings. e) Waste chutes and flues shall have their openings sealed off as the floors are built or installed, or protected by means of pre-arranged openings. During the construction of pipe shafts, in addition to following the procedures mentioned above, obvious signs should also be installed. In the event of temporary removal, approval from the construction supervisor is required, and the protective measures must be reinstated once the work is completed. f) The covers over openings, deep ditches, and pipe pits and trenches located alongside the vehicle driving lanes shall be capable of withstanding a load equal to at least twice the local rated effective load capacity of the truck’s rear wheels. g) For vertical openings in walls and similar areas, openings that reach the ground level should be equipped with protective doors that can be opened or closed, or fixed-type doors. The spacing between the bars of such doors should not exceed 15 cm; protective railings can also be used, along with a footboard (or barrier) at the bottom. h) For vertical openings such as window sills whose lower edge is less than 80 cm above the floor or base surface, if the side drop is greater than 2 m, a temporary guardrail 1.2 m high should be installed. i) Other vertical openings that pose a risk of falling objects onto people and items nearby should be covered or protected, with measures in place to secure their position. 6.3 Basic requirements for climbing operations 6.3.1 Operations such as setting up and dismantling scaffolding around buildings, installing safety nets, assembling and disassembling tower cranes, gantries, A-frame structures, construction elevators, and pile drivers, as well as climbing to install steel structural components, all fall under this category of operations. 6.3.2 The climbing and ascent facilities to be used for on-site construction shall be specified in the construction organization design. When climbing at the site, one should use climbing equipment installed on building structures or scaffolding, or vertical transportation devices capable of carrying people. Ladders or other climbing equipment can be used for climbing tasks. 6.3.3 Straight ladders and other climbing devices required for lifting components such as columns, beams, and crane beams shall be specified in the component construction drawings or specifications. 6.3.4 The climbing equipment must be sturdy and reliable in terms of structure. The load capacity of the stepping plate for ascending and descending should not exceed 1100 N. When there are special operations on the ladder platform and the weight exceeds the aforementioned load, calculations should be carried out based on the actual conditions. 6.3.5 Mobile ladders shall have their quality inspected in accordance with the current **standards. 6.3.6 The base of the ladder foot should be solid and equipped with anti-slip measures; it must not be raised when in use. The top of the ladder should have fixing measures. The working angle of the vertical ladder should be 75°±5°, and the distance between the rungs should be 30 cm; there should be no missing rungs. 6.3.7 If a ladder is to be extended for use, it must have reliable connection measures, and there shall be no more than one joint. The strength of the connected ladder beam shall not be lower than that of a single ladder beam. 6.3.8 When using a straight climbing ladder for climbing operations, a climbing height of 5 m is advisable. When it exceeds 2m, a protective cage should be installed; when it exceeds 8m, a landing platform must be provided. 6.3.9 Workers shall ascend and descend through the designated passages; they must not climb using non-designated routes such as between balconies, nor shall they use construction equipment such as crane arms for climbing purposes. 6.3.10 When going up or down a ladder, one must face the ladder and must not be holding any objects. 6.3.11 When climbing up to install steel columns, a steel hanging ladder or a climbing ladder installed on the steel column should be used. Ladders or workbenches should be used for joining steel columns. The height of the console crossbar should be no less than 1 m when there is no requirement for wind protection during welding; it should be no less than 1.8 m when such wind protection is required. 6.3.12 When installing steel beams at heights, a steel pipe scaffold should be erected depending on the height of the beams. When it is necessary to walk on the beam surface, the temporary guardrail bars on one side can be made of steel cables; when handrails are used instead, the natural sag of the ropes should not exceed 1/20, and it should be kept within 10 cm. 6.3.13 The installation of steel roof trusses shall comply with the following provisions: a) When working at the upper and lower chords of the roof truss, access paths for climbing up and down shall be provided at the ridge for triangular trusses, and at both ends for trapezoidal trusses. b) Before lifting the roof truss, a protective railing should be installed on the top chord. c) Before lifting the roof truss, a safety net should be installed in advance on the lower chord ； After the lifting is complete, the safety net will be laid and secured. 6.4 Basic requirements for work at heights 6.4.1 Tasks such as lifting components during construction, carrying out exterior decoration using suspension baskets, erecting or removing formwork for cantilevered or suspended beams and slabs, canopies, and similar structures, as well as reinforcing concrete, all fall under the category of work at heights. 6.4.2 Areas where work is carried out at height must have a secure footing, and protective nets, railings, or other safety measures must be installed as appropriate depending on the specific circumstances. 6.4.3 Equipment such as rigging, scaffolding planks, suspension baskets, hoists, and platforms used for working at heights must undergo technical evaluation or verification before they can be used. 6.4.4 For work at height during the lifting of components and pipeline installation, the following rules must be followed: a) When lifting steel structures, the components should be assembled on the ground as much as possible, and safety facilities for working at height should be set up to facilitate temporary fixing, welding, high-strength bolt connections, etc.; these facilities should be lifted into place together with the components. Safety measures for disassembly should be considered and implemented as well. Before lifting large components such as prestressed reinforced concrete roof trusses and trusses from a height, safety facilities required for working at heights should also be installed. b) When installing large formwork in a suspended position, lifting the first precast element, or lifting large and medium-sized precast elements separately, operations must be carried out from an operating platform. It is strictly prohibited to stand or walk on large formwork and precast components being lifted, as well as on roof panels such as asbestos-cement sheets. c) When installing pipes, a completed structure or working platform must be available as a foothold; standing or walking on the pipes during installation is strictly prohibited. 6.4.5 For work at height during the erection and dismantling of formwork, the following rules must be followed: a) Formwork erection shall be carried out in accordance with the prescribed procedures, and no further work shall proceed until the formwork is properly secured. It is strictly prohibited to climb up and down on connectors and supports, and it is also strictly prohibited to install or remove formwork on the same vertical plane. For templates with complex structures, their installation and removal must be carried out strictly in accordance with the measures specified in the construction organization plan. b) For column formwork with a erection height of over 3 m, diagonal bracing should be provided around it, and an operating platform shall be set up. For heights below 2m, scaffolding can be used for the operation. c) When setting up formwork in a cantilevered configuration, there must be a stable footing. When setting up formwork for aerial structures, scaffolding or staging should be erected. If there are pre-made holes in the template, they should be covered after installation. Edges or openings that form after form removal on concrete slabs shall be protected in accordance with the relevant sections of this specification. d) For formwork removal work at heights, climbing equipment or scaffolding should be provided. 6.4.6 For working at heights while binding rebar, the following regulations must be followed: a) Scaffolding and access paths must be erected when binding rebar and installing rebar frames. b) When binding the rebar for ring beams, cantilever beams, eaves, exterior walls, and edge columns, an operating platform should be set up and safety nets should be installed. The binding of rebar for suspended beams must be carried out on a scaffold or working platform with fully laid footboards. c) When binding the rebar for columns and walls, one must not stand on the rebar framework or climb up and down it. For column rebar within 3m, it can be tied together on the ground or floor and erected as a whole. When binding column rebar over 3m in length, an operating platform must be set up. 6.4.7 When working at heights during concrete pouring, the following rules must be followed: a) When pouring frames, lintels, canopies, and small platforms that are more than 2 meters above the ground, an operating platform should be provided; it is not allowed to work directly on formwork or supports. b) When pouring the arch structure, it should be carried out symmetrically from both arch feet towards each other. When pouring the storage tank, its lower opening should be sealed first, and scaffolding should be set up to prevent people from falling. c) In special situations where there are no reliable safety facilities, it is necessary to fasten the safety belt and engage the safety latch, or simultaneously use a safety net. 6.4.8 When carrying out prestress tensioning in suspended work, the following regulations must be observed: a) When performing prestress tensioning, a sturdy and reliable scaffold or working platform must be erected for the operators to stand on and for setting up the tensioning equipment. When tensioning in rainy weather, a rain shelter should also be set up. b) The prestressing tensioning area shall be marked with clear safety signs, and access is prohibited to unauthorized personnel. Shields must be installed at both ends of the tensioned rebar. The baffle should be located 1.5 m to 2 m from the ends of the tensioned rebar, and 0.5 m above the top row of tensioned rebar; its width should be at least 1 m on each side of the tensioned rebar. c) Channel grouting shall be carried out in accordance with the relevant regulations on prestress tensioning safety facilities. 6.4.9 When working on doors and windows from a height, the following rules must be followed: a) When installing doors and windows, applying paint, or fitting glass, it is strictly prohibited for workers to stand on door frames or balcony railings while performing these tasks. It is strictly prohibited to pull on doors and windows to climb up when they are temporarily fixed, the sealing materials have not yet reached their strength, or during welding. b) When installing doors and windows on the exterior walls at heights, safety nets should be installed in the absence of external scaffolding. The operator should fasten their safety belt, with the safety hook attached to a secure object above the operator. c) When performing various window-related tasks, the operator’s center of gravity should be inside the room; they must not stand on the windowsill, and a safety belt should be worn if necessary. 6.5 Basic requirements for concurrent operations 6.5.1 On a construction site, activities such as erecting scaffolding at the upper level, transporting materials, having workers on the ground handle materials, manufacturing rebar, or applying base plastering on the lower part of an exterior wall while carrying out decorative finishing on the upper part are all examples of concurrent operations at the construction site. 6.5.2 When different types of work such as formwork erection, plastering, and wall building are carried out in a vertical cross-operation manner, operations shall not be conducted in the same vertical direction. The location of the lower-level work must be outside the radius of the possible falling range determined by the height of the upper level. When the above conditions are not met, a safety protection layer should be installed. 6.5.3 When removing steel formwork, scaffolding, etc., there must be no other workers below. 6.5.4 After the steel formwork components are removed, the temporary storage area should be at least 1 m away from the edge of the floor, and the stacking height shall not exceed 1 m. It is strictly prohibited to pile up any removed items at floor edges, passageways, scaffolding edges, and similar locations. 6.5.5 Starting from the second floor during structural construction, safety shielding shelters shall be installed at all access points for personnel (including those for the tower and construction elevators). For cross-work on floors exceeding 24m in height, a double-layer protection system shall be installed. 6.5.6 In areas affected by potential falling objects from above-level construction or passages within the rotation range of crane booms, a double-layer protective canopy with a top layer to prevent penetration must be installed. 7 Inspection, Maintenance, and Storage 7.1 Inspection a) All safety belts, slings, spring hooks, and other equipment must be in good condition. Workers may only use approved fall protection devices and wear them in the manner specified by the manufacturer. The certification documents for all full-body safety belts and slings must be retained until those belts and slings are discarded. b) Before each use, each employee must check the components of their personal fall protection system for wear, damage, and other defects in accordance with the manufacturer’s instructions. Defective components of the fall prevention system must be marked as “disabled” and removed immediately from the construction site of Xinjiang Kuishan Baota Petrochemical Co., Ltd. c) Personal fall protection systems and components that are subjected to impact due to the protection of people falling must be taken out of use immediately. The on-site operation supervisor of the construction contractor and the HSE personnel are responsible for controlling and inspecting fall protection equipment. 7.2 Maintenance and cleaning a) Fall protection equipment must be cleaned regularly to ensure it remains in good condition. b) If it is necessary to clean the fall prevention equipment, use soapy water for cleaning and rinse with clean water; rough abrasives and industrial solvents must not be used to clean or maintain any part of the system. c) After cleaning, the label should be clearly visible, and the equipment should be dried in a shaded area. d) Lubricate the fall prevention device according to the manufacturer’s recommendations. 7.3 Storage: During storage, synthetic fiber materials should be kept away from bright light and ultraviolet rays, and stored in a cool and dry place. 8 Supervision and Inspection: Relevant departments of the project team, the owner’s HSE engineer, the supervision unit, and the construction contractor carry out inspections of high-altitude work at the site through random checks and specialized inspections. Any violations are stopped immediately; in the event of serious violations, the construction contractor must halt work right away to make corrections. 9 Records Attachment: High-Height Work Permit Attachment High-Height Work Permit Permit Number: GC-HSE- Work Level: Project Management Department: Construction Contractor: Location of high-height work: Maximum falling height at the work location: meters On-site supervisor of the construction contractor: Person in charge of the work by the construction contractor: Start time of work: Year Month Day Hour End time of work: Year Month Day Hour (maximum of 7 days) Workers involved: Nature of the work: Sequence Number Confirmation of work conditions Confirmer 1 Are the workers’ physical conditions suitable? Those without occupational contraindications? 2 Were the staff members wearing qualified personal protective equipment? 3 Do the staff members carry tool bags? 4 For staff to wear: A. Filtered respirator? B. Air respirator? 5 Are there any toxic or harmful sources, or overhead power lines in the surrounding area? 6 Climate conditions: no thunderstorms, heavy rain, or dense fog? 7 Are the scaffolds and protective fences erected on site in compliance with safety regulations? 8 Are there qualified upper and lower passages? 9 Are there reliable belt anchorage points? 10 Is there sufficient lighting? Should temporary lights or explosion-proof lights be installed? 11 Are there isolation facilities between vertically stratified tasks? 12 Are workers working at heights equipped with the necessary communication tools? 13 Are there enclosures, warnings, and monitoring measures in the hazardous area below the work area? 14 Supplementary measures: Approval of work permit, review by the construction contractor, approval by the supervision unit of the project management team, review by the construction supervisor of the construction contractor, approval by the supervision engineer/general manager or their representative. Signature: Signature: Date/Time: Date/Time: Signature of the owner’s safety engineer: Date/Time: Year Month Day. Note: This form is in four copies; the first copy is kept for archiving, the second is given to the construction party, the third is retained by the supervision team, and the fourth is kept by the owner’s HSE engineer.