Electrical Engineering  ·  Level 5
Conduit System Installation
Chapter 3: Mount conduit work pieces
📚 4 Topics
⚑ What you will be able to do

By the end of this chapter, you will be able to:

  • Apply safety measures following OSHA and EHS standards to keep your work environment safe.
  • Mark out mounting points accurately according to IEC standards.
  • Mount conduit work pieces correctly and securely following IEC standards.
  • Explain the key differences between salaried employment and self-employment using entrepreneurship principles.
  • Identify what you need to start your own self-employment venture following proper business procedures and standards.
  • Recognize the regulatory requirements for starting a small business and plan your business considering available resources and regulations.

These skills will help you work safely and professionally while also preparing you to take charge of your career, whether working for others or starting your own business.

Mounting conduit work pieces is a fundamental step in the installation of conduit systems, ensuring that electrical or communication cables are routed safely and efficiently. This process requires precise marking of mounting points and skillful bending of conduits to fit the designated spaces, especially in diverse workplaces such as hospitals, county government offices, and universities. Proper mounting not only safeguards the integrity of the conduit but also complies with safety standards and facilitates future maintenance or upgrades. Understanding these techniques is crucial for technicians working across various sectors where conduit systems support critical infrastructure.

3.1 Marking Mounting Points

Marking mounting points accurately is essential for a secure and professional conduit installation. In Kenyan institutions such as county referral hospitals or universities, improper marking can lead to misaligned conduit runs, resulting in safety hazards or costly rework. Clear marking ensures that conduits are fixed at the right locations, respecting structural elements and avoiding interference with existing installations. This section explores the principles, tools, techniques, and safety considerations involved in marking mounting points.

3.1.1 Principles of Marking Mounting Points

Marking mounting points involves defining exact locations where conduit supports, clamps, or brackets will be fixed. This step demands precision to guarantee alignment, stability, and compliance with installation standards.

Key Principles

  • Accuracy: Precise measurements ensure that conduit runs are straight and supports are evenly spaced, reducing strain on the conduit and cables.
  • Alignment with Structural Features: Marks should consider walls, beams, and ceilings to avoid drilling into load-bearing elements or utilities.
  • Spacing Compliance: Following recommended distances between mounting points prevents conduit sagging or excessive tension.
  • Accessibility: Marks should facilitate easy access for installation and future maintenance without obstructing other services.
  • Documentation: Clear markings and records aid coordination among technicians and future inspections.

3.1.2 Tools and Equipment for Marking

Effective marking relies on appropriate tools that enhance precision and ease of use.

Name Specification Use
Tape Measure Steel tape, minimum 5 meters length Measuring distances accurately on surfaces
Spirit Level 24-inch length, bubble vial Ensuring horizontal or vertical alignment
Chalk Line String coated with chalk powder Marking straight lines over long distances
Marker Pen Permanent, fine tip Making visible marks on various surfaces
Plumb Bob Weighted string Marking vertical reference points
  • Tape Measure: Used to measure distances between mounting points and from reference edges.

Tape measure with extended blade
Tape measure with extended blade (Source: Wikipedia (Tape measure))

  • Spirit Level: Ensures marks are level or plumb, critical for neat conduit runs.

  • Chalk Line: Enables quick marking of straight lines, especially on large walls.

  • Marker Pen: Provides clear, durable markings that remain visible during installation.

  • Plumb Bob: Helps transfer points vertically, useful when marks must align across different heights.

Traditional plumb bob used in building technology
Traditional plumb bob used in building technology (Source: Wikimedia Commons)

In a retail business, technicians might use a chalk line to mark a straight conduit path along a long wall, ensuring cables run neatly behind display shelves.

3.1.3 Techniques for Marking Mounting Points

The choice of marking technique depends on surface type, conduit route complexity, and accessibility.

  • Pre-Planning Layout: Review architectural drawings and existing installations to determine optimal mounting locations.
  • Surface Preparation: Clean surfaces to ensure marks adhere and remain visible during installation.
  • Use of Templates: For repetitive mounting points, templates speed up marking and maintain consistency.
  • Double-Checking Measurements: Verify all measurements before marking to avoid errors.
  • Marking Reference Lines First: Establish baseline horizontal or vertical lines using spirit level or plumb bob before marking mounting points.

3.1.4 Safety Considerations in Marking

Marking mounting points often involves working at heights or near live installations, requiring safety precautions.

  • Use Personal Protective Equipment (PPE): Gloves, safety glasses, and helmets protect against accidental injuries.
  • Avoid Live Electrical Components: Identify and isolate live cables before marking to prevent electric shocks.
  • Stable Working Platforms: Use ladders or scaffolds that comply with safety standards to reach high mounting points.

  • Clear Work Area: Remove obstacles to prevent trips or falls during marking.

  • Communicate with Team: Inform other workers of marking activities to avoid interference or accidents.

At a county referral hospital, technicians must coordinate with the electrical department to de-energize circuits before marking mounting points near power outlets.

Practice Questions

  1. Explain why accuracy in marking mounting points is critical in conduit installation. (5 marks)
  2. List and describe five tools used for marking mounting points and their specific uses. (10 marks)
  3. Describe the steps involved in preparing a surface before marking mounting points for conduit installation. (6 marks)
  4. Identify five safety measures to observe when marking mounting points on a construction site. (5 marks)
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🔒3.2 Conduit Bends

Bending conduits correctly is vital to ensure smooth cable routing and maintain the conduit’s structural integrity. In sectors such as banking or hospitality, where conduit systems often follow complex routes to avoid architectural features, bends must be prec…

🔒3.3 Mounting Conduit Work Pieces

Mounting conduit work pieces is a critical step in establishing a secure and efficient conduit system that protects electrical wiring and other utilities. In Kenya’s diverse professional environments, such as county government offices or hospitals, proper moun…

🔒3.4 Housekeeping Activities

Maintaining a clean and organized work environment during conduit installation enhances safety, efficiency, and professionalism. In Kenyan workplaces such as universities or SACCO offices, good housekeeping prevents accidents, protects tools, and improves proj…

Chapter Summary

This chapter explored the essential steps involved in mounting conduit work pieces, starting with the precise marking of mounting points to ensure accurate and secure installation. It then examined the techniques for creating conduit bends, emphasizing the importance of correct shaping to maintain conduit integrity and facilitate smooth cable routing. The process of mounting conduit work pieces was detailed, highlighting methods to fasten conduits firmly while accommodating structural and safety requirements. The chapter concluded with a focus on housekeeping activities, stressing the need for maintaining general cleanliness at the worksite to promote safety and efficiency. Proper storage of tools and equipment was also discussed as a critical practice to preserve tool condition and streamline workflow. Together, these topics provide a comprehensive guide to effective conduit system installation.

Self-Assessment

🔒 PDFDownload this self-assessment, with answers

A. Written Assessment

  1. What is the primary purpose of marking mounting points before installing conduit work pieces? (2 marks)
  2. Identify three factors to consider when making conduit bends to ensure safety and compliance. (3 marks)
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Chapter Examination Questions

🔒 PDFDownload these examination questions, with worked answers

SECTION A (40 Marks) - Answer ALL Questions

  1. Explain the importance of accurately marking mounting points before installing conduit work pieces in a county government office setting. (4 marks)
  2. Describe the procedure for making a 90-degree conduit bend using hand tools, citing an example from a retail business installation. (4 marks)
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Chapter Practical Activities

Practical 1: Marking Mounting Points for Conduit Installation on Wall Surface

Electrical Engineering · Level 5
Conduit System Installation
PRACTICAL ASSESSMENT
TIME: 4 HOURS
⬇ PDFCandidate Instructions (Candidate Tool)

Type: Individual

INSTRUCTIONS TO CANDIDATE:
1.  You are required to perform the following task:
i.  Mark accurate mounting points for conduit clips on a 1200mm x 900mm wall surface.
2.  You have been provided with the following resources for the practical task:
Tools & EquipmentMaterials
Measuring tape 5mConduit mounting clips
Carpenter’s pencilWall surface (smooth concrete panel)
Spirit level 600mm
Combination square
Marking gauge
Masking tape roll
⬇ PDFResources Required (Cutting List)
S/NItemQuantity
1Measuring tape 5m1 Pc per Candidate
2Carpenter’s pencil1 Pc per Candidate
3Spirit level 600mm1 Pc per Candidate
4Combination square1 Pc per Candidate
5Marking gauge1 Pc per Candidate
6Conduit mounting clips5 Pcs per Candidate
7Wall surface (smooth concrete panel)1 Pc per Candidate
8Masking tape roll1 Roll per 5 Candidates
9Safety boots1 Pair per Candidate
10Dust coat/overall1 Pc per Candidate
⬇ PDFAssessor Guide
Items to be EvaluatedMarks AvailableMarks ObtainedComments
TASK 1: Marking Mounting Points
Wore personal protective equipment (safety boots and dust coat)
(Award 2 or 0)
2
Selected and handled measuring and marking tools correctly
(Award 2 or 0)
2
Measured and marked mounting points according to layout drawing within ±2mm accuracy
(Award 1 mark for each correctly marked mounting point, total 5 marks)
5
Used spirit level and combination square to ensure horizontal and vertical alignment
(Award 3 or 0)
3
Marked uniform spacing of mounting points at 300mm intervals as per specification
(Award 3 or 0)
3
Maintained clean and organized work area throughout the task
(Award 2 or 0)
2
Sub-Total17
PRODUCT CHECKLIST
Mounting points marked correctly on wall surface with ±2mm tolerance on 1200mm x 900mm area
(Award 5 or 0)
5
Mounting points aligned horizontally and vertically as per layout drawing
(Award 4 or 0)
4
Uniform spacing of mounting points at 300mm centres observed
(Award 4 or 0)
4
Sub-Total13
GRAND TOTAL30
ASSESSMENT OUTCOME:   ☐ Competent    ☐ Not Yet Competent (competent if at least 50%)

Practical 2: Forming Standard 90° and 45° Conduit Bends

Electrical Engineering · Level 5
Conduit System Installation
PRACTICAL ASSESSMENT
TIME: 4 HOURS
⬇ PDFCandidate Instructions (Candidate Tool)

Type: Individual

INSTRUCTIONS TO CANDIDATE:
1.  You are required to perform the following task:
i.  Form two standard conduit bends (one 90° and one 45°) on 16mm electrical conduit pipes each 500mm long.
2.  You have been provided with the following resources for the practical task:
Tools & EquipmentMaterials
Conduit Bender (16mm capacity)16mm Electrical Conduit Pipe
Measuring TapeSafety Gloves
Permanent MarkerSafety Boots
Spirit LevelEye Protection Goggles
Work Apron
⬇ PDFResources Required (Cutting List)
S/NItemQuantity
116mm Electrical Conduit Pipe2 meters per Candidate
2Conduit Bender (16mm capacity)1 per Candidate
3Measuring Tape1 per Candidate
4Permanent Marker1 per Candidate
5Spirit Level1 per Candidate
6Safety Gloves1 pair per Candidate
7Safety Boots1 pair per Candidate
8Eye Protection Goggles1 per Candidate
9Work Apron1 per Candidate
⬇ PDFAssessor Guide
Items to be EvaluatedMarks AvailableMarks ObtainedComments
TASK 1: Forming Standard Conduit Bends
Wore personal protective equipment (safety boots, gloves, goggles, apron)
(Award 2 or 0)
2
Measured and marked conduit accurately to within ±2mm
(Award 3 or 0)
3
Selected and used appropriate conduit bending tools correctly
(Award 3 or 0)
3
Formed a neat and smooth 90° bend without kinks
(Award 4 or 0)
4
Formed a neat and smooth 45° bend without kinks
(Award 4 or 0)
4
Ensured bends are aligned and plumb using spirit level
(Award 2 or 0)
2
Performed good housekeeping by cleaning workspace and disposing waste
(Award 2 or 0)
2
Sub-Total20
PRODUCT CHECKLIST
Conduit bends formed to correct angles (90° and 45°) with ±2° tolerance
(Award 5 or 0)
5
Bends are smooth, free from cracks, dents or flattening
(Award 4 or 0)
4
Length of conduit before and after bending matches drawing within ±2mm
(Award 3 or 0)
3
Sub-Total12
GRAND TOTAL32
ASSESSMENT OUTCOME:   ☐ Competent    ☐ Not Yet Competent (competent if at least 50%)
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🔒Mounting Straight Conduit Sections on Wall SurfacePractical 3
🔒Mounting Conduit Bends and Junctions in a Conduit System LayoutPractical 4
🔒Perform Housekeeping During Conduit InstallationPractical 5
🔒Maintain General Cleanliness After Mounting Conduit Work PiecesPractical 6
🔒Organize and Store Tools and Equipment for Conduit InstallationPractical 7
🔒Marking and Installing Conduit Supports for a 3m Conduit RunPractical 8
🔒Bending and Installing Offset Conduit Bends 20mm DiameterPractical 9
🔒Conduct Final Inspection and Clean-up of Mounted Conduit Work PiecesPractical 10
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Am I competent?

At the start of this chapter we promised you would be able to:

  • Apply safety measures following OSHA and EHS standards to keep your work environment safe.
  • Mark out mounting points accurately according to IEC standards.
  • Mount conduit work pieces correctly and securely following IEC standards.
  • Explain the key differences between salaried employment and self-employment using entrepreneurship principles.
  • Identify what you need to start your own self-employment venture following proper business procedures and standards.
  • Recognize the regulatory requirements for starting a small business and plan your business considering available resources and regulations.

Tick each one you can genuinely do.

So, are you there yet?

You're competent when you can confidently do 50% or more of what this chapter promised.

Sign in to record how you're doing.