Install Under Surface Wireways And Draw In Conductors Training

Objectives:
• Understand the purpose and types of undersurface wireways in electrical installations.
• Identify relevant safety regulations and personal protective equipment (PPE) requirements.
• Explain the importance of compliance with SANS 10142-1 and other applicable standards.
• Recognize common hazards associated with undersurface wireway installation.
• Demonstrate knowledge of risk assessment procedures for installation tasks.

Topics:
• Overview of undersurface wireways: definition, applications, and benefits.
• Types of wireways: metallic, non-metallic, and hybrid systems.
• Relevant legislation and standards: OHSA, SANS 10142-1, and SAQA unit standards.
• Safety protocols: lockout/tagout, working in confined spaces, and electrical safety.
• PPE selection and inspection for wireway installation.
• Hazard identification and risk assessment (HIRA) for installation sites.
• Introduction to tools and equipment for wireway installation.

Objectives:
• Interpret installation drawings and specifications for undersurface wireways.
• Select appropriate wireway components based on application and environment.
• Plan cable routing and wireway layout to minimize bends and obstacles.
• Calculate material quantities and prepare a bill of materials.
• Coordinate with other trades to avoid conflicts during installation.

Topics:
• Reading and interpreting electrical installation diagrams and site plans.
• Selection criteria for wireway materials: corrosion resistance, load capacity, and ingress protection.
• Components: straight sections, elbows, tees, couplings, and supports.
• Cable pulling considerations: bend radius, fill ratio, and pulling tension.
• Material take-off and procurement procedures.
• Site survey and measurement techniques.
• Coordination with structural, plumbing, and other services.
• Documentation: work permits, method statements, and inspection checklists.

Objectives:
• Install wireway supports and hangers according to manufacturer specifications.
• Assemble and secure wireway sections, including bends and junctions.
• Ensure proper alignment and level of wireways for cable drawing.
• Apply appropriate sealing and bonding for environmental protection.
• Conduct visual and dimensional inspections of installed wireways.

Topics:
• Support systems: clamps, brackets, trapeze hangers, and concrete inserts.
• Assembly techniques: joining sections, using couplings, and tightening fasteners.
• Installing bends and fittings: field-fabricated vs. factory-made.
• Achieving correct alignment: use of levels, string lines, and laser tools.
• Sealing methods: gaskets, compounds, and firestop systems.
• Bonding and grounding of metallic wireways.
• Inspection criteria: alignment, support spacing, and clearance requirements.
• Common installation defects and corrective actions.

Objectives:
• Prepare conductors for pulling: lubrication, fish tape, and pulling grips.
• Draw conductors through wireways using appropriate pulling techniques.
• Manage cable slack and maintain minimum bend radii during installation.
• Identify and rectify issues such as snags, kinks, and over-tensioning.
• Install cable ties, markers, and labels for identification.

Topics:
• Conductor preparation: cutting, stripping, and attaching pulling devices.
• Pulling methods: manual pulling, winches, and cable rollers.
• Lubrication types and application for reduced friction.
• Bend radius compliance: measuring and maintaining during pulls.
• Pulling tension monitoring: dynamometers and breakaway links.
• Troubleshooting: dealing with stuck cables, sharp edges, and jammed sections.
• Cable securing: straps, ties, and supports within wireways.
• Identification systems: labels, markers, and colour coding for circuits.

Objectives:
• Terminate conductors at outlets, switches, and distribution boards.
• Perform continuity, insulation resistance, and polarity tests.
• Verify compliance with installation specifications and standards.
• Complete as-built documentation and handover procedures.
• Apply quality assurance principles and final inspection protocols.

Topics:
• Termination techniques: stripping, crimping, and screw connections.
• Installation of outlets, junction boxes, and termination enclosures.
• Testing instruments: multimeters, meggers, and continuity testers.
• Insulation resistance testing: procedure and acceptable values.
• Polarity and phase sequence verification.
• As-built drawings and record keeping.
• Commissioning checklist and sign-off procedures.
• Safety during testing: de-energization and isolation verification.