BILD326 – Introduction to Drainlaying
Module code
BILD326
Module title
Introduction to Drainlaying
Prescription
To provide learners with an overview of drainlaying as a career and to gain the knowledge and skills for excavation and trenching.
Programmes
- NZ2660
NZQA Level
Level 3
NZQA Credits
13
Delivery method
- Web-Supported
Learning hours
- Total learning hours
- 130
Resources required
- Learning Outcomes
- Explain the concepts and principles underpinning excavation, trenching, and backfilling for plumbing and drainlaying, including notification requirements and collapse control. Describe wet and dry inspection chambers Demonstrate installation of inspection chambers for drainlaying work
- Content
- Explain: i. how to determine the position of the excavation or trench and allow for other services, ii. collapse control in respect of excavations, iii. excavation dewatering, iv. notification requirements and procedures for excavation and trenching, v. the concepts and principles underpinning excavation, trenching, and backfilling for plumbing and drainlaying. b. Excavate and trench for plumbing, gasfitting or drainlaying: i. determine the lines and levels ii. determine the position of the excavation or trench, iii. excavate to a stable sub-base, iv. carry out backfilling and clear the site. Drain access chambers, jointing pipework. Wet and dry inspection chambers, soundness tests, protection. Inspection chambers, installation of channel, invert level, jointing pipework, lid and adjustment rings.
- Assessment Criteria
- Assessment in this module is competency-based. In order to pass this module students must attempt and meet all the requirements of the competency-based assessments including carrying out all tasks in a safe manner and to industry standard.
- Learning and Teaching Resource
- Study Guide Textbooks Skills quality assured competency-based assessment resources. Plumbers, Gasfitters, and Drainlayers Act 2006; Health and Safety at Work Act 2015; Building Act 2004; Health Act 1956; Resource Management Act 1991; Plumbers, Gasfitters, and Drainlayers Regulations 2010; The following standards, which are available at http://www.standards.govt.nz: AS/NZS 1547:2000 On-site domestic wastewater management AS/NZS 1546.1:2008 On-site domestic wastewater treatment units – Septic tanks AS/NZS 3500.2:2021 Plumbing and drainage – Sanitary plumbing and drainage; The following guides, which are available at http://www.worksafe.govt.nz/worksafe: Good practice guidelines – Excavation safety, Wellington: WorkSafe New Zealand, 2016 Guide for Safety with Underground Services, Wellington: Department of Labour, 2002; The following clauses, and any related compliance documents, which are available at https://www.building.govt.nz/: New Zealand Building Code Clause E1 Surface Water New Zealand Building Code Clause G12 Water Supplies New Zealand Building Code Clause G13 Foul Water; and all subsequent amendments and replacements.
