On some projects, particularly new builds, there is a H&S requirement that all electrical machinery operate on 110v rather than the UK mains standard of 240v. The reason for this is simple: 110v won’t kill you if you come into contact with a live component – 240v can!
However, our sanding machinery operates on 240v. In this post, we’ll explain why and address some of the H&S issues this raises.
Classification: A Professional Sanding machine is not classified as “Hand Operated Equipment” (i.e. Portable Tool such as drill, angle grinder, breaker) but is in fact classified as “Hand Guided equipment” with a weight in excess of 79kgs & the operator is positioned behind the machine and merely guides the direction of it and correcting the walking speed at which it travels, as it moves & rests on its own wheels. The operator during operation is at no time exposed to the risk of any moving mechanical parts, or any debris or dust generated as it is removed by its own incorporated extraction facility.
All types and brands of Professional Belt Sanding Machines are manufactured world wide in 230V single phase or 440v three phase, it is IMPOSSIBLE to achieve the rpm and power required for operating
this type of equipment using a 110v motor, to sand a wooden floor to a professional standard.
Trailing cables: Trained operators will clear a safe path in order to operate the equipment, ensuring that they avoid other operators and are working a safe distance apart.
Blue Cable & 230v 16a Blue sockets are used where possible; clearly identifying them apart from 110v yellow cables, if necessary signs are posted notifying other trades that 230v machinery is in use.
Preparation of Working Area: Due to the processes involved in sanding and finishing a wooden floor, the area involved will need to be cleaned of debris, clear of any obstacles, with no other trades working in the immediate area or on the floor being sanded, in the event a trailing cable were to be run over and damaged, installed “RCD”s would protect the operator and equipment.
RCD: If equipment operating at 230 volts or higher is used, an RCD (residual current device) provides additional safety. An RCD is a device, which detects faults in the electrical system and rapidly switches off the power supply. RCD is built into the main switchboard or close to the socket-outlet, as this means that the supply cables to the equipment are permanently protected for the safety of the operator & equipment.
EC Conformity: All LÄGLER equipment display the CE symbol, which indicates that the manufactured equipment conforms to EC Directives, a copy of this certificate is on the rear of each individual machine and in the instruction manual. Also contained in each manual are technical specifications.
Machine Vibration Measurements: The results of vibration measurements at final inspection of all new equipment, covering all LÄGLER machine types, does not exceed the EU Vibration Guideline 2002/44/EG given release value for Hand-Arm-Oscillations of 2,5m/s ².
Machine Dust emissions: All LÄGLER equipment dose not exceed 2mg/m³ (0.024gr. /cu/yd.) however employees are provided with P3 Dust masks should conditions on site require them.
Machine Noise Emissions:
As quoted from the manufacturers Instruction Manual
- Lägler Hummel 76db(A)
- Lägler Trio 80db(A)
- Lägler Elan 89db(A)
- Lägler Flip 82db(A)
- Lägler Unico 77db(A)
Employees are provided with ear defenders or earplugs at personal preference with suitable db reduction rating.