EN 61478:2001
(Main)Live working - Ladders of insulating material
Live working - Ladders of insulating material
Is applicable to fully insulating spliced or hook ladders with extension or having a combination of insulating and conductive sections and used for live working on a.c. or d.c. electrical installations at 1 000 V and above for a.c. and 1 500 V and above for d.c. This standard concerns only ladders made of synthetic material. These ladders are used, to provide access, generally on overhead line structures and to facilitate live working, either hot stick, barehanded or a combination of both.
Arbeiten unter Spannung - Leitern aus isolierendem Material
Travaux sous tension - Echelles en matériau isolant
S'applique aux échelles entièrement isolantes (échelles à éléments emboîtables ou échelles à crochets avec rallonge) ou comportant une combinaison d'éléments conducteurs et d'éléments isolants et utilisées pour les travaux sous tension sur des installations électriques en courant alternatif ou continu ayant une tension nominale égale ou supérieure à 1 000 V en alternatif et à 1 500 V en continu. La présente norme ne concerne que les échelles réalisées en matériau synthétique. Ces échelles sont utilisées pour permettre l'accès généralement sur des supports de lignes aériennes et faciliter les travaux sous tension, que ce soit à distance, au potentiel, ou une combinaison des deux.
Delo pod napetostjo - Lestve iz izolacijskega materiala (IEC 61478:2001)
General Information
Relations
Overview
EN 61478:2001 - Live working: Ladders of insulating material is a European/CENELEC technical standard (identical with IEC 61478:2001) that applies to fully insulating spliced or hook ladders, including extension ladders and ladders with a combination of insulating and conductive sections. It covers ladders made of synthetic insulating material used for live working on a.c. installations at 1 000 V and above and d.c. installations at 1 500 V and above. These ladders are intended to provide access on overhead-line structures and to facilitate live-line techniques such as hot stick and barehanded work, or combinations of both.
Key Topics
- Scope and applicability - Defines ladder types covered (spliced, hook, extension, or mixed-section) and voltage thresholds for a.c. and d.c. live work.
- Material requirements - Limits the standard to ladders manufactured from synthetic insulating materials and addresses the need for sustained insulating performance.
- Design and construction - Principles for ladder geometry, splicing/hook assemblies, and combinations of insulating and conductive sections to support safe live working.
- Electrical and mechanical performance - Requirements to ensure adequate insulation and mechanical strength for safe use at specified voltages (including durability under service conditions).
- Marking and documentation - Expectations for user information, identification, safe-working recommendations, and maintenance instructions supplied with the ladder.
- Inspection and maintenance guidance - Principles for periodic checks, cleaning and storage to preserve insulating properties during service life.
Applications
EN 61478 is intended for practical use where live-line access and proximity are required:
- Maintenance and repair of overhead power lines and transmission structures
- Live working using hot sticks, barehand techniques, or combined methods
- Situations where insulated ladder access is required at or above the stated a.c./d.c. voltages
- Manufacture, procurement and certification of insulating ladders for utilities and contractors
Who uses this standard
- Utility companies and linemen performing live-line operations
- Manufacturers and testers of insulating ladders and accessories
- Safety managers, procurement officers and maintenance teams specifying compliant equipment
- Standards bodies and conformity assessment organizations validating ladder safety
Related Standards
EN 61478:2001 is aligned with IEC 61478:2001. For comprehensive live working programmes, EN 61478 should be used alongside other live-working and electrical-safety standards and employer procedures covering personal protective equipment, tools and work methods.
Keywords: EN 61478, ladders of insulating material, live working, insulating ladders, overhead line, hot stick, barehanded, electrical safety, synthetic insulating ladders, high voltage.
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2004
Delo pod napetostjo - Lestve iz izolacijskega materiala (IEC 61478:2001)
Live working - Ladders of insulating material
Arbeiten unter Spannung - Leitern aus isolierendem Material
Travaux sous tension - Echelles en matériau isolant
Ta slovenski standard je istoveten z: EN 61478:2001
ICS:
13.260 9DUVWYRSUHGHOHNWULþQLP Protection against electric
XGDURP'HORSRGQDSHWRVWMR shock. Live working
97.145 Lestve Ladders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
...
Frequently Asked Questions
EN 61478:2001 is a standard published by CLC. Its full title is "Live working - Ladders of insulating material". This standard covers: Is applicable to fully insulating spliced or hook ladders with extension or having a combination of insulating and conductive sections and used for live working on a.c. or d.c. electrical installations at 1 000 V and above for a.c. and 1 500 V and above for d.c. This standard concerns only ladders made of synthetic material. These ladders are used, to provide access, generally on overhead line structures and to facilitate live working, either hot stick, barehanded or a combination of both.
Is applicable to fully insulating spliced or hook ladders with extension or having a combination of insulating and conductive sections and used for live working on a.c. or d.c. electrical installations at 1 000 V and above for a.c. and 1 500 V and above for d.c. This standard concerns only ladders made of synthetic material. These ladders are used, to provide access, generally on overhead line structures and to facilitate live working, either hot stick, barehanded or a combination of both.
EN 61478:2001 is classified under the following ICS (International Classification for Standards) categories: 13.260 - Protection against electric shock. Live working; 29.240 - Power transmission and distribution networks; 29.260.99 - Other electrical equipment for working in special conditions. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 61478:2001 has the following relationships with other standards: It is inter standard links to EN 61478:2001/A1:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 61478:2001 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
EN 61478:2001 표준은 전기 설치물에서의 실시간 작업을 위한 절연재로 제작된 사다리에 대한 포괄적인 가이드라인을 제공합니다. 이 표준은 1,000V 이상의 교류 및 1,500V 이상의 직류 전기 설치물에서 사용되는 완전 절연 스플라이스 또는 훅 사다리와 같은 장비에 적용됩니다. 다루는 범위는 절연 재료로만 제작된 사다리에 국한되며, 이는 특수한 안전 요구 사항을 충족하도록 설계된 것입니다. 이 표준의 강점 중 하나는 안전성과 효율성을 동시에 고려한 점입니다. 절연재로 제작된 사다리는 전기 작업을 수행하는 근로자가 전기적인 위험으로부터 보호받도록 돕습니다. 또한, 이 표준은 다양한 작업 방식인 핫 스틱 작업, 맨손 작업 또는 이 둘의 조합을 가능하게 하는 사다리의 사용을 명시하고 있어, 사용자의 유연성을 증가시킵니다. EN 61478:2001은 전기 분야의 현대적인 요구에 부합하는 규격으로, 높은 전압에서의 작업이 점점 더 빈번해짐에 따라 그 중요성이 더욱 부각되고 있습니다. 전기 설치물에서의 안전한 접근을 용이하게 하고, 전선 구조물에서의 실시간 작업을 위한 필수 요소로 기능하는 이 표준은 전기 공학 실무자에게 매우 유의미한 자료입니다. 이러한 점에서 EN 61478:2001 표준은 절연 사다리의 효과적인 사용과 관련된 안전 기준을 제정함으로써, 산업 전반에 걸쳐 그 중요성이 높이 평가되고 있습니다.
EN 61478:2001は、絶縁材料で作られた梯子に関する重要な基準であり、電気設備のライブ作業において非常に重要な役割を果たします。この基準の適用範囲は、完全に絶縁されたスプライスまたはフック梯子で、伸縮可能であり、絶縁セクションと導電性セクションの組み合わせを持つものに限られています。特に、交流電源1,000V以上および直流電源1,500V以上の環境で使用されることを目的としています。 この基準の強みは、使用される材料が合成材料である点にあります。合成材料は、高い絶縁性と耐久性を提供し、作業者が安全に作業を行うための重要な要素です。また、EN 61478:2001は、架空線構造物にアクセスを提供し、ホットスティック作業、裸手作業、またはその組み合わせによるライブ作業を円滑に行うための基準として設計されています。これにより、現場での効率性と安全性が向上します。 さらに、この基準は、業界標準としての重要性も持っています。ライブ作業に従事する電気技術者や作業者に対して、明確で一貫した安全基準を提供することで、作業環境の安全向上に寄与しています。したがって、EN 61478:2001の関連性は非常に高く、特に電気設備の管理や保守に関わる業界において、必須の基準となっています。
The EN 61478:2001 standard plays a crucial role in ensuring safety when using ladders made of insulating material for live working on electrical installations. Its scope is specifically tailored to fully insulating spliced or hook ladders that may also include a combination of insulating and conductive sections. This ensures that professionals working on a.c. electrical installations at voltages of 1,000 V and above, as well as d.c. installations at 1,500 V and above, have the necessary guidelines to minimize risk while accessing overhead line structures. One of the standard's key strengths lies in its focus on synthetic material. As opposed to traditional materials, synthetic ladders provide enhanced insulation properties, which are vital for live work scenarios where the risk of electric shock is inherently high. This specificity is essential for the safety of workers engaging in operations that may involve hot stick methods, barehanded techniques, or a combination of both, ensuring operators are adequately protected. Moreover, the relevance of this standard cannot be overstated in the context of modern electrical work practices. As industries increasingly embrace high-voltage installations, adherence to EN 61478:2001 ensures that safety protocols are kept up to date with evolving technologies and methodologies. It supports the operational integrity of the ladders, reinforcing their usability in critical live working conditions. In summary, EN 61478:2001 establishes a comprehensive framework for the safe use of ladders in live electrical work, with particular emphasis on insulating materials. Its targeted guidelines enhance not only the safety of individual workers but also the overall operational standards within the electrical installation field.
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