VIETNAM’S NATIONAL STANDARD

TCVN 13662:2023

SCAFFOLDING - SAFETY REQUIREMENTS

Foreword

The TCVN 13662:2023 is developed on the basis of consulting the ANSI/ASSE A.10.8-2011 Scaffolding - Safety requirements.

The TCVN 13662:2023 is developed by the Hanoi Architectural University, proposed by the Ministry of Construction, appraised by the Directorate for Standards, Metrology, and Quality, and publicized by the Ministry of Science and Technology.

SCAFFOLDING - SAFETY REQUIREMENTS

1 Scope

This Standard prescribes safety requirements in installation, use, maintenance, and dismantlement of construction scaffolding in repairing, dismantling, building, and finishing buildings and structures. This Standard does not apply to permanent suspended scaffold systems or mobile lift platforms.

2 Reference documents

The following referencing document is necessary for the application of this Standard. If a reference document is mentioned together with its publishing year, only the referenced edition shall prevail. If a reference document is not mentioned together with its publishing year, the latest version and all its amendments and revisions (if any) shall prevail

TCVN 5308:1991, Code of Practice for building safety technique.

TCVN 5935-2:2013 (IEC 60502-2:2005), Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) – Part 2: Cables for rated voltages from 6kV (Um = 7,2 kV) and 30 kV (UM = 36 kV)

TCVN 7755:2007, Plywood

TCVN 7802-1:2007 (ISO 10333-1:2000), Part 1: Full-body harnesses

TCVN 7802-2:2007 (ISO 10333-2:2000), Part 2: Lanayards and energy absorber

TCVN 7802-3:2007 (ISO 10333-3 :2000), Part 3: Self-retracting lifelines

TCVN 8044:2014 (ISO 3129:2012), Wood – Sampling methods and general requirements for physical a nd mechanical testing of small clear wood specimens

3 Definitions

In this Standard, the following definitions are used:

3.1

Scaffold

Means a structure system placed on stable base, suspended, anchored, or leaned towards a structure to enable employees to work at a position higher than ground level or fixed floor surface

3.2

Wood pole scaffold

Means a scaffold whose pole or entirety is made of wood (see Figure A.1)

3.3

Tube and coupler scaffold

Means a scaffold consisting of tubes (steel tubes, galvanized steel, or plain aluminum alloy) connected by couplers and other accessories. Tubes used as post, runners, bearers, braces, and clamps serve to keep scaffold rigid (see Figure A.2)

3.4

System scaffold - Modular systems

Means a scaffold consisting of steel poles which wedgelocks have been welded onto, etc. with a determined scaffolding width (generally 500 mm). The wedgelocks facilitate installation of bearers, runners, and other fabricated accessories with compatible couplers (see Figure A.3)

3.5

Fabricated tubular frame scaffold

Means a scaffold erected from fabricated steel tubes, joints, crossbraces (see Figure A.4). Fabricated tubular steel frames are usually standard “H” frame or “A” frame which is also referred to as pal scaffolding. Fabricated tubular frame scaffolds shall be referred to as frame scaffolds

3.6

Single pole scaffold

Means scaffold that surrounds exterior wall and cons