[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662470-105":59,"doc-detail-662470-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","essential-standard-17-scaffolding","Essential Standard 17 - Scaffolding","","Essential Standard no. 17 establishes requirements for scaffolding used for construction and maintenance works, focusing on preventing falls and structural failures. It specifies inspection by suitably qualified persons, registration and accreditation of scaffolding companies on Thames Water sites, and CISRS card requirements for scaffolders. It requires suitable fall arrest equipment during erection, alteration, and dismantling and outlines obligations for compliant scaffold design, safe access/egress, and visual checks for a safe scaffold.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/essential-standard-17-scaffolding/662470/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/essential-standard-17-scaffolding/662470.png","ImageObject",300,407,{"name":92,"@type":93},"River Wang","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does Essential Standard no.17 require for scaffolding inspections?","Question",{"text":112,"@type":113},"Scaffolding must be inspected regularly by a suitably qualified person to ensure it meets the standards in the guidance.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What qualifications and safety equipment are required for scaffolders?",{"text":117,"@type":113},"Scaffolders must hold a CISRS Card, and when erecting, altering, or dismantling scaffolding they must wear suitable fall arrest equipment, with a minimum harness and fall arrest lanyard, as referenced by NASC guidance SG4:15.",{"name":119,"@type":110,"acceptedAnswer":120},"How should safe access and egress be managed on scaffolds?",{"text":121,"@type":113},"Access and egress must follow NASC guidance SG25:20, taking into account scaffold height and width, number of users, type and duration of work, the sub-structure, and local emergency requirements.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},662470,1793218096,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":34,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":143},1099514067438,"https://ap-avatar.wpscdn.com/avatar/100002539ee87300030?x-image-process=image/resize,m_fixed,w_180,h_180&k=1780474512215547542","ESSENTIAL STANDARD no.17  \nScaffolding  \n• Check that scaffolding meets the standards in this guidance.  \n• Ensure that regular inspections are carried out on scaffolding by a suitably qualified person.  \n• All scaffolding companies on Thames Water sites must be registered and accredited with NASC full membership.  \n• Scaffolders must have a Construction Industry Scaffolders Registration Scheme (CISRS) Card.  \n• As per the NASC guidance SG4:15 (Preventing Falls in Scaffolding) scaffolders must always wear suitable fall arrest equipment (minimum harness and fall arrest lanyard) when erecting, altering or dismantling scaffolding.  \n1. Introduction  \nScaffolding is used to provide access and working platforms for both construction and maintenance works. Most incidents are caused by falls, misuse , by objects falling from the scaffolding or by failure of the scaffold structure itself. Common problems with scaffolding include inadequate edge protection , poor foundations , removal of ties, inadequate bracing and guardrails , and overloading of platforms.  \nTherefore, scaffolds must be designed, erected, altered and dismantled by competent personnel as per NASC Guidance TG20:13 (Good Practice Guidance for Tube and Fitting Scaffolding) and manufacturer’s guidelines for system scaffolds.  \n2. Scaffold design and temporary works  \nIt is a requirement of the Work at Height Regulations 2005 that unless a scaffold is assembled to a generally recognised standard configuration then the scaffold should be designed with supporting calculations , by a competent person, to ensure it will have adequate strength, rigidity and stability while it is erected, used and dismantled.  \nAt the start of the planning process, the client/principal designer/principal contractor/contractor should supply all the relevant information to the scaffold contractor to ensure that an accurate and proper design process is followed. Prior to installation, the scaffold contractor or scaffold designer can then provide relevant information about the scaffold.  \nFor scaffolds that fall outside the scope of a generally recognised standard configuration (Built to a TG20 compliance sheet) the design must ensure that safe erection and dismantling techniques can be used throughout the duration of the works. To ensure stability for more complex scaffolds, drawings along with calculations should be produced and, where necessary be supplemented with specific instructions.  \nThe Work at Height Regulations Schedule 3 Paragraph 7 states that all scaffolds should have strength and stability calculations.  \nThis can be achieved through general recognized standard configurations (TG20 Compliance Sheets, Manufactures guidance sheets, bespoke scaffolding designs) . Where scaffolds fall out of general recognized standard configurations then a bespoke design is required.  \nThese need to be reviewed / erected / inspected in line with Thames Water Essential Standard 20 Management of Temporary Works.  \n3. Access  \nThe NASC guidelines SG25:20 (Access and Egress from Scaffolds) require scaffolding to be erected to ensure safe access and egress.  \nTake the following into account when ensuring safe access and egress:  \n• Height and width of scaffold  \n• Number of people using the scaffold at any one time  \n• Type of work to be undertaken on scaffold (for example confined spaces work and asbestos removal while using full face respirators require a higher degree of assessment for access and egress)  \n•  \n•  \n•  \nDuration of scaffold hire  \nThe sub-structure or surface that the scaffold is to be placed upon  \nLocal emergency requirements.(fire, toxic gas alarms, etc.)  \n4. Hierarchy of Control for Access:  \nSelect the best type of scaffold where possible. Refer to SG25:20 Access and Egress from Scaffolding, via  Ladders and Stair Towers etc. You can select the most appropriate means of access by using this hierarchy of control list:  \n1. Stair access should always be considered as the first option:  ","cbCaicFTRNFrKe0k","https://ap.wps.com/l/cbCaicFTRNFrKe0k","pdf",673941,"English","# Introduction\n# Scaffold design and temporary works\n# Access\n# Hierarchy of Control for Access\n# A Safe Scaffold\n# Scaffold Inspection","[{\"question\":\"What does Essential Standard no.17 require for scaffolding inspections?\",\"answer\":\"Scaffolding must be inspected regularly by a suitably qualified person to ensure it meets the standards in the guidance.\"},{\"question\":\"What qualifications and safety equipment are required for scaffolders?\",\"answer\":\"Scaffolders must hold a CISRS Card, and when erecting, altering, or dismantling scaffolding they must wear suitable fall arrest equipment, with a minimum harness and fall arrest lanyard, as referenced by NASC guidance SG4:15.\"},{\"question\":\"How should safe access and egress be managed on scaffolds?\",\"answer\":\"Access and egress must follow NASC guidance SG25:20, taking into account scaffold height and width, number of users, type and duration of work, the sub-structure, and local emergency requirements.\"}]","Essential Standard 17 - Scaffolding | PDF",18]