T&R KV50-20D mk2, Руководство по эксплуатации и техническому обслуживанию

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2. OPERATION
2.1 Safety
WARNING
The output from the KV50-20D MK2 is extremely dangerous, and if used
incorrectly could be fatal. The unit must only be installed, operated, and
maintained by suitably qualified and skilled personnel.
It is essential to follow accepted safety procedures and local health and safety regulations and
guidelines when installing and operating high voltage equipment. A risk assessment should be
undertaken on both the installation and the working procedures to ensure the safety of test
personnel and all other personnel. EN50191:2001 Defines suitable test installations for this
equipment.
2.2 Installation
2.2.1 Test area
The unit must be installed in a suitable high voltage test area completely enclosed by walls or
other physical barriers. Appropriate controls and safety measures must be applied to this area
including interlocks connected to the supply or HV unit interlock to ensure that the unit cannot
be switched on unless the area is secure. Refer to EN50191:2001 for further details of suitable
test areas. The test area must also be identified with suitable signs.
2.2.2 Mains supply
The unit must be connected to a suitable supply via an approved and suitably rated mains
connector with earth connection.
2.2.3 Earthing
Earthing of high voltage test sets is critical, and the system must not be operated without extra
earth connections to the control unit and HV transformer. The extra earth connections must be
made to a low impedance earth. If operating in a high voltage test area, this will usually be the
test cage earth, and otherwise it will usually be the building frame at a point adjacent to the test
area.
Figures 2.2 and 2.3 show the earth connections for the KV50-20D MK2. Note that the test
enclosures are not shown to scale and do not indicate safe clearances for 50kV.
The earth clamp is not used in figure 2.3 – it is not required if suitable earth studs are available
for the connection of the earth leads.