Electrical conduiting is an essential preliminary activity that ensures safe and systematic routing of electrical services within a building. This Method Statement for Electrical Conduiting Works outlines the standard procedures and best practices for installing conduits and boxes in cast-in-situ concrete, embedded walls, and exposed areas in compliance with approved drawings and relevant codes.
1. Purpose
This procedure describes the applicable codes, specifications, standards, and sequence of work to be followed for the fixing of electrical trade preliminary installation items. It also covers manpower, tools, equipment, safety, quality control, and inspection requirements to ensure works are executed to the satisfaction of the Consultant/Client
2. Scope of work.
The scope includes the following activities
- Marking and fixing of conduits and boxes in cast-in-situ concrete
- Marking and fixing of conduits and boxes in embedded masonry walls
- Marking and fixing of conduits and boxes in exposed areas.
3. References
- Drawings and any other relevant/applicable documents.
- Project-specific specifications
- IS: 732 – Code of Practice for Electrical Wiring Installations
- IS: 2274 – Code of Practice for Electrical Work Safety
- Indian Electricity Act, 1910
- Indian Electricity Rules, 1956
- Local Electricity Supply Authority & Fire Insurance Regulations
4. Materials & Components
- PVC conduits – heavy-duty category or as per approved specification
- MS conduits – solid drawn or lap welded, stove enameled inside and outside
- Minimum thickness
- Up to 25 mm dia: 1.6 mm
- Above 25 mm dia: 2.0 mm
- Saddles, junction boxes, sockets, bends, couplers, bushes, and accessories
5. Manpower
- Project Engineer
- Project Engineer
- Site Engineers
- Charge hands
- Carpenters
- Steel fixer
- Electricians.
- Skilled labours
- Unskilled labourers.
- Project Engineer
6. Safety Precautions
- Ensure all workers have proper PPE (gloves, helmets, goggles, safety shoes).
- Safety of personnel and property shall be given prime importance
- Materials shall be stacked neatly near the work area
- Stack height not exceeding 1.5 m
- Scaffolding shall be properly braced and secured
- Work areas shall be kept clean and free from debris
- Throwing debris from height is strictly prohibited
- Safety permit shall be obtained before work near lift shafts
7. Responsibility
- Project Manager / Construction Manager – Overall implementation of this procedure
- Site Engineers & Supervisors – Execution as per approved drawings and method
- QC Engineer – Inspection and compliance with specifications
8. Equipment and Tools Used
- Chasing and cutting machine
- Drill machine
- Hammer
- Measuring tape
- Tube level
- Equipment for safe working at height
9. Inspection of Incoming Materials
- All materials shall be inspected upon delivery
- Submission of:
- Delivery note
- Manufacturer’s Test Certificate
- Material Inspection Request (MIR)
- Conduits shall be supplied in original bundles with manufacturer labels
- Rejected or damaged materials shall be:
- Segregated
- Stored in a designated area marked “REJECTED ITEMS”
- Materials shall be stored in dry, protected locations as per standards
10. Work procedure: – General
10 a. General Requirements
- Conduit system shall be mechanically continuous and watertight
- Conduits shall be arranged to be self-draining wherever possible
- Proper holdfasts shall be used as per approved details
- Conduit routing shall allow easy wire pulling
- Expansion fittings shall be provided across expansion joints
- Conduits shall be kept away from steam and hot water pipes
Remaining Sections
10 b) Installation Guidelines
10 c) Installation Types
Fixing of bends
Pre-installation checks
PVC conduit & box installation in cast-in-situ concrete
Embedded wall conduits
Exposed conduit installation
Bunching of wires (as applicable)
11. Documentation