Electrical Power Supply - FLOWTECH flowpress WMDA Operation And Maintenance Manual

12

Electrical Power Supply

This equipment must be electrically isolated before removing the covers. Cables connected to the volt free
contacts may be supplied from another source and may remain live after the unit is isolated. These must be
isolated elsewhere.
All electrical connections must be carried out by a suitably qualified and competent person.
The mains power supply to the pressurisation unit must be connected into the fused terminal block as
shown below:
On some larger models, the fused terminal block is replaced by a fused spur. If this is the case, the power
supply must be connected into the fused spur, as shown below:
It is recommended to supply power to the pressurisation unit via a lockable isolator. This should be installed
within 2m of the equipment.
This equipment can be damaged by the high voltages produced by electrical installation testing equipment.
When performing electrical installation tests, the equipment must be isolated from the supply.