Safety and Professional Practice
Safety and Professional Practice covers statutory obligations on a construction site and the engineer ethical and contractual duties. The paper is largely short answer: PPE, scaffolding, excavation, the Factories Act, the BOCW Act, building permission and professional conduct.
Site safety essentials
- PPE: helmet, safety shoes, high-visibility vest, safety belt when working above 1.8 m, eye and ear protection where needed.
- Scaffolding: double scaffolding for stone masonry, working platform at least 800 mm wide, guard rails and toe boards, tied back to the structure.
- Ladder: base set out at 1 in 4, giving about 75 degrees to the horizontal, and extended 1 m above the landing.
- Excavation: shoring or strutting where depth exceeds 1.5 m in loose soil, with barricades and warning lights at night.
Statutory framework
- Factories Act 1948 governs worker safety in factories, including fencing of machinery and working hours.
- Building and Other Construction Workers Act 1996 requires registration, safety committees and a 1 percent cess on construction cost for worker welfare.
- Maharashtra Regional and Town Planning Act 1966 requires development permission from the planning authority before construction starts.
Professional practice
Duties include competence, honesty in measurement and certification, confidentiality, avoiding conflict of interest and reporting unsafe work. Contracts may refer disputes to arbitration or mediation instead of litigation.
Worked example
A ladder must reach a 3 m platform. With the base at 1 in 4, base distance = 3/4 = 0.75 m, and the ladder should extend 1 m above the platform, so the length needed is about 4.1 m. Setting the base only 0.5 m out makes the angle too steep and the ladder unstable.
Traps
- Confusing the Factories Act with the BOCW Act.
- Quoting the welfare cess as 2 percent instead of 1 percent.
- Believing PPE alone makes a site safe; elimination and engineering controls come first.