Electrical Safety & LOTO

Electrical Safe System of Work & Lock Out Tag Out (LOTO)

Structured Electrical Safe System of Work (ESSW) and Lock Out Tag Out (LOTO) management for mission-critical projects. We develop procedures, frameworks and contractor management aligned with Swiss regulations and ESTI requirements.

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Overview

Electrical Safe System of Work (ESSW)

An effective Electrical Safe System of Work is essential to control electrical risk during construction, commissioning and operations. We support clients and contractors with structured ESSW and LOTO frameworks — focusing on governance, procedures and compliance rather than execution.

ESSW Framework

ESSW & LOTO Management

We provide independent management and development of Electrical Safe System of Work and Lock Out Tag Out procedures, aligned with Swiss standards and project-specific requirements.

ESSW Framework Development

Development and adaptation of ESSW frameworks aligned with Swiss regulations, ESTI requirements and international best practice.

Lock Out Tag Out (LOTO)

Definition of LOTO procedures, roles, responsibilities and permit workflows. Clear separation between management and execution.

Procedure & Documentation

Creation and review of ESSW and LOTO procedures, method statements, permits and supporting documentation.

Project Integration

Contractor & Project Management

ESSW and LOTO frameworks must be consistently applied across all contractors and project phases to be effective.

Contractor Management

Alignment and coordination of contractors within the ESSW framework. Clear rules, responsibilities and escalation paths.

Commissioning & Site Integration

Integration of ESSW and LOTO requirements into commissioning planning, energisation phases and site activities.

Scope Clarification

Independent Management – No Execution

We act as an independent ESSW and LOTO management partner. We do not perform electrical switching, live work or physical lock-out activities. Execution remains with authorised contractors and site personnel.

Industries

Industries & Project Types

Enterprise Data Centers

Private data centers for large corporations, financial institutions, and government organizations. From initial builds to major expansions, we provide structured safety governance and commissioning-aligned frameworks.

Financial Services Facilities

Facilities with strict availability and compliance requirements. We support consistent application of ESSW / LOTO processes across contractors and critical activities.

Colocation & Cloud Providers

Multi-tenant facilities with complex interfaces and change control. Clear procedures and contractor alignment are essential for safe energisation and testing.

Retrofits & Upgrades

Work in live or partially live environments requires robust electrical safety governance, permits and strict LOTO discipline.

Industrial Facilities

Projects with complex power distribution and operational constraints. We help align safety procedures and responsibilities across stakeholders.

Edge & Small Critical Sites

Consistent ESSW/LOTO governance adapted to smaller scopes while maintaining quality and compliance.

Why Wacosoft

Why Choose Wacosoft

Swiss Standards & Compliance Mindset

We work within Swiss engineering and regulatory frameworks. This ensures a structured approach to safety, compliance, documentation and quality.

Independent & Objective Oversight

We act independently in the interest of our clients. Decisions are based on engineering facts rather than commercial pressure.

Electrical Engineering Depth

Electrical systems are the backbone of mission-critical facilities. We understand power distribution, protection, redundancy and safety.

Swiss Compliance Expertise (ESTI)

We support alignment with Swiss regulatory expectations and structured documentation suitable for project governance and audits.

Integrated Engineering Perspective

Close coordination between electrical, mechanical and digital systems is essential. We manage interfaces and dependencies with system-level thinking.

Project-Based Delivery Experience

Hands-on experience from complex critical infrastructure projects ensures frameworks remain practical, usable and delivery-focused.

Contact

Discuss Your ESSW / LOTO Requirements

Need an ESSW / LOTO framework for a project, commissioning phase or contractor set-up? Let's discuss how we can support a compliant and structured approach.

We offer a complimentary exploratory consultation to understand your requirements, timeline and stakeholder set-up. No obligation—just a conversation.

Independent management & governance
Swiss compliance alignment (ESTI)
Contractor coordination & documentation control
Pascal Gyr

Pascal Gyr

Partner

Electrical Engineering & Commissioning

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FAQ

Frequently Asked Questions

What is ESSW (Electrical Safe System of Work)?

ESSW (Electrical Safe System of Work) is a structured safety framework that defines the rules, permits, isolations, and controls required to carry out electrical work safely on live or dead systems. We provide specific support including Swiss regulatory alignment, SINA verification, coordination with ESTI authorities, and ensures installations meet Swiss electrical safety standards (NIV/NIN) before approval.

When do I need an ESSW for my project?

Swiss law requires ESSW involvement for electrical installations above certain thresholds, mission-critical facilities, and when ESTI approval is needed. Data centers, industrial facilities, and critical infrastructure typically require ESSW verification and SINA documentation.

What is SINA verification?

SINA (Sicherheitsnachweis) is the Swiss electrical safety verification documentation proving an installation complies with regulations. It includes technical evidence, test results, and safety confirmations required for ESTI approval and facility operation authorization.

Can you help with ESTI inspections and approvals?

Yes, we coordinate the entire ESTI approval process including SINA preparation, authority submissions, inspection scheduling, addressing findings, and obtaining final approval. Our established relationships with cantonal ESTI offices streamline the process.

How long does a typical commissioning engagement take?

Typical duration depends on project phase and complexity. We define scope and stage-gates early, then run with a milestone-based delivery model to keep timelines predictable.

Can you work with our EPC, GC and vendor teams?

Yes. We regularly coordinate with owner teams, EPCs, GCs and vendors and establish clear responsibilities for testing, issue closure and acceptance.

Ready to Improve Electrical Safety Governance?

Schedule a complimentary consultation to explore how Wacosoft can support ESSW and LOTO management for your project.

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