User's Manual

1. SAFETY CONSIDERATIONS
1.1
Meadowlands Fiber Fed BDA Equipment
User Handbook
Handbook Nō.-60-165801HBKM Issue No:-1
Date:-03/01/06
Page:-
8 of 25
Earthing of Equipment
Cell Enhancers supplied from the mains must be connected to grounded outlets and earthed in
conformity with appropriate local, national and international electricity supply and safety
regulations.
AFL recommends that all other hardware enclosures and electrically conductive metalwork
within operator reach of the cell enhancer cabinet (enclosing the PSUs) be grounded to the
same earth to prevent hazardous differential voltages between equipment which could result in
electrocution.
This arrangement of grounding and safety earthing has always been implemented by AFL and
meets good RF-engineering grounding practice, thus preventing any risk of electrocution when
touching both the modules and cabinet or due to the leakage from the PSU input filter. The use
of a common ground for the cabinet and AC supply input will have no detrimental affect on the
overall electrical or EMC performance of the equipment.
1.2 Electric Shock Hazard
Electrical shocks due to faulty mains driven power supplies.
Whilst ever potentially present in any electrical equipment, such a condition would be
minimised by quality installation practice and thorough testing at:
a) Original assembly
b) Commissioning
c) Regular intervals, thereafter.
All test equipment to be in good working order prior to its use. High current power supplies can
be dangerous because of the possibility of substantial arcing. Always switch off during
disconnection and reconnection.