Operational Safety Directives

ABB Infra operates under a fundamental corporate doctrine: "Every individual returns home safely, every day." In heavy civil engineering, complex bridge construction, and utility solar installations, risk is inherent, but accidents are entirely preventable through rigorous planning and disciplined adherence to engineering protocols.

All Executive Directors, Project Managers, Resident Engineers, and Subcontractor Supervisors are held personally accountable for safety audits, Daily Toolbox Talks (TBT), and proactive hazard elimination on their assigned segments.

ABB Infra grants Universal and Absolute Stop-Work Authority (SWA) to every employee, engineer, technician, laborer, and third-party vendor present on our project premises.

Once SWA is triggered, work remains suspended until the Site Safety Officer (SSO) and Lead Project Engineer personally inspect the area, eliminate the hazard, and issue a written Safety Resumption Clearance.

No person—regardless of rank, seniority, or client status—is permitted past the security barricades of any ABB Infra construction zone without certified Class-A PPE compliant with BIS (Bureau of Indian Standards) and EN/ANSI equivalents:

Working at elevated elevations (including pier caps, bridge decks, peb roofs, and transmission towers) poses severe fall risks and demands strict compliance:

• 100% Tie-Off Rule: At any elevation exceeding 1.8 meters (6 feet), continuous 100% tie-off using dual self-retracting lifelines (SRLs) or shock-absorbing lanyards to certified anchor points (minimum 22.2 kN load capacity) is compulsory.
• Scaffold Tagging System (ScaffTag): Daily structural inspections by certified scaffolders. Only scaffolds displaying a GREEN Tag are approved for climbing. A RED Tag signifies immediate out-of-service prohibition.
• Perimeter Edge Protection & Safety Nets: Continuous double guardrails (top rail at 1.1m, intermediate rail at 0.6m, toe boards of 150mm) plus heavy-duty catchment nets deployed under elevated expressway spans.

Lifting pre-cast bridge segments, 765kV transformers, and heavy structural steel girders requires calibrated engineering execution:

Trench collapses and underground utility strikes present acute hazards during highway grading and foundation pilings:

• Ground Penetration Utility Scan (Dial Before You Dig): Ground Penetrating Radar (GPR) and cable locator surveys are mandatory before initiating backhoe or excavator digging.
• Shoring & Benching Mandate: Any trench deeper than 1.5 meters must feature certified trench boxes, sheet piling, or 45-degree angle soil benching compliant with geotechnical soil type (Type A, B, or C).
• Atmospheric Testing in Confined Trenches: Continuous multi-gas detectors (O2, H2S, CO, LEL) active whenever workers enter deep culverts or micro-tunnel bores.

For solar EPC installations, switchyard erections, and 765kV grid interconnections:

Strict minimum approach boundary clearances (MABC) are permanently demarcated around live transmission corridors: minimum 3.0 meters for 33kV, 5.0 meters for 220kV, and 8.0 meters for 765kV utility conductors.

Every active ABB Infra project site maintains a fully equipped On-Site Medical Center staffed with certified trauma paramedics and a 4x4 Emergency Mobile Ambulance:

• Golden Hour Evacuation Plan: Pre-arranged MOUs with tertiary multispecialty trauma centers within a 30-minute transit radius of all operational work camps.
• Quarterly Full-Scale Mock Drills: Mandatory emergency evacuation, fire suppression, and confined-space rescue drills conducted every 90 days in coordination with local district emergency services.
• Root Cause Analysis (RCA): Any incident or high-potential near-miss triggers a multidisciplinary Root Cause Investigation completed within 72 hours and circulated across all Pan-India sites to prevent recurrence.