To comply with PUWER - Provision and Use of Work Equipment Regulations 1998 (PUWER)
Many woodworking machines are now legally required to STOP within 10 seconds.
DC injection braking is a PUWER 98 approved method of stopping AC electric
motors and requires the mains supply to be present to operate correctly.

Under Provision and Use of Work Equipment Regulations 1998 (PUWER) the following list of machinery now require to be braked.

• circular saw benches
• dimension saws
• powered and hand-fed cross-cut saws (unless there is no risk of contact with the blade during rundown)
• single-end and double-end tenoning machines and combined machines incorporating a circular saw and/or tenoning attachment
• narrow band saws
• re-saws
• vertical spindle moulding machines (unless fitted with a manual or foot-.operated brake)
• hand-fed routing machines
• thicknessing machines
• planing /thicknessing machines
• surface planing machines.