Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 1 of 14 PowerPoint presentation Power tools Unit 104: Site preparation for working in the construction industry

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 2 of 14 Power tools Power supplies Domestic (mains) voltage is 230v, which is potentially very dangerous. This voltage is not allowed on site. Site voltage is 110v, which posses less of a risk. This voltage is indicated by yellow cables and is generally produced through use of transformers. Battery-operated tools are becoming far more popular due to their flexibility, low voltage and no trip hazards.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 3 of 14 Power tools Rotary hammer drill A chuck key may be required to tighten the drill bit, although it can also sometimes be tightened by hand. The rotary hammer drill is capable of drilling into all building materials, including masonry, thanks to its hammer action. The chuck needs to kept well oiled and the chuck key must be kept safe.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 4 of 14 Power tools SDS hammer drill This is the most powerful drill available. It uses the Secure Drill System, which locks the drill bit in place, and can be used to chisel. Bu using its core bits, it is also suitable for drilling larger holes.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 5 of 14 Power tools Cordless drills The voltage of cordless drills ranges from 14v to 36v. These tools have no trip hazards as they are battery operated. The cordless drill types available include simple screw drivers, drills and even SDS drills.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 6 of 14 Power tools Circular saws These are very useful when lifting floorboards and notching joists. The blade needs to be set at the correct height and with the guard always in place. They are available in 230v, 110v and cordless.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 7 of 14 Power tools Jig saw Jig saws are used for cutting out profiles in worktops, bathrooms and patrician walls. Care must be taken to use the correct blade for the material to be cut. Jig saws have a blade guard that must be kept in place and are available in 230v and 110v, and also cordless.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 8 of 14 Power tools As with all the tools you will use, always inspect power tools prior to use. You should check: for any damage to the tool body that guard in place that the tool is sharp for damage to the plug for damage to the lead that the PAT sticker is in-date.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 9 of 14 Power tools Faults Missing safety guard Frayed lead Mechanical damage Damaged plug

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 10 of 14 Power tools Safe working practices When working with power tools it is important to use safe working practices all the time. Under the Health and Safety at Work Act you have a duty of care to yourself, your employer and others who may be affected by your actions.

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 11 of 14 Power tools Guidelines Select the appropriate tool for the task Follow the risk assessment Follow the manufacturer’s instructions Select and use the correct personal protective equipment Inspect the equipment before use

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 12 of 14 Power tools Required safety check Current portable appliance test (PAT) Damage to cable Damage to body of tool Damage to plug Correct fuse rating Residual Current Device (RCD) in place (either at consumer unit or plug in)

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 13 of 14 Power tools Electrical dangers Always be aware of common electrical dangers: Faulty equipment Damaged/worn cables Property wiring Trailing leads Slip hazards

Level 1 Diploma in Plumbing Studies © 2013 City and Guilds of London Institute. All rights reserved. 14 of 14 Any questions?