Caution:
NEVER look into optical fibres. Always use optical power meters to determine
operation or signal level.
Caution:
Insulation testing may leave capacitors charged up to a hazardous voltage. At
the end of each part of the test, discharge the capacitors by reducing the voltage
to zero, before disconnecting the test leads.
Caution:
Operate the equipment within the specified electrical and environmental limits.
Caution:
Before cleaning the equipment, ensure that no connections are energised. Use a
lint free cloth dampened with clean water.
Note:
Contact fingers of test plugs are normally protected by petroleum jelly, which should not be removed.
4.3 UL/CSA/CUL REQUIREMENTS
The information in this section is applicable only to equipment carrying UL/CSA/CUL markings.
Caution:
Equipment intended for rack or panel mounting is for use on a flat surface of a
Type 1 enclosure, as defined by Underwriters Laboratories (UL).
Caution:
To maintain compliance with UL and CSA/CUL, install the equipment using UL/
CSA-recognised parts for: cables, protective fuses, fuse holders and circuit
breakers, insulation crimp terminals, and replacement internal batteries.
4.4 FUSING REQUIREMENTS
Caution:
Where UL/CSA listing of the equipment is required for external fuse protection, a
UL or CSA Listed fuse must be used. The listed protective fuse type is: Class J
time delay fuse, with a maximum current rating of 15 A and a minimum DC rating
of 250 V dc (for example type AJT15).
Caution:
Where UL/CSA listing of the equipment is not required, a high rupture capacity
(HRC) fuse type with a maximum current rating of 16 Amps and a minimum dc
rating of 250 V dc may be used (for example Red Spot type NIT or TIA).
For P60 models, use a 4A maximum T-type fuse.
MiCOM P747 Chapter 2 - Safety Information
P747-TM-EN-1 17
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