
Where Mineral insulated cable (MICC) is being used:
use only galvanised finish junction boxes for installation of alarm and
detection devices
use brass locknut with zinc plated lockwasher to secure gland to the
metal enclosure.
There is no need to use earth tail seals when terminating mineral insulated
cable, providing there is good earth continuity between gland and enclosure.
When using Firetuf cable, the earth drain wire should be fitted to the earth
point nearest the cable entry, with a length not exceeding 50mm.
Board fixing
Ensure all board fixing screws are fully tightened, if they have been
removed during installation. The screws maintain an earth continuity path
between the board and its metal enclosure.
EMC compliant
products
The products listed below are those covered by these guidelines.
Note, the product options are not listed.
MICC CABLE
GLAND
BRASS
LOCKNUT
ZINC PLATED
LOCK WASHER
GLAND
BOARD
TERMINALS
EARTH
DRAIN
WIRE
Should not
be more than
50mm
MICC
CABLE TERMINATION
MICC CABLE
GLAND
BRASS
LOCKNUT
ZINC PLATED
LOCK WASHER
FireTuf CABLE
GLAND
BOARD
TERMINALS
EARTH
DRAIN
WIRE
Should not
be more than
50mm
FireTuf
CABLE TERMINATION
PANEL
enclosure
fl198
Figure 2-1 Cable
termination
Control and
indicating
equipment:
78500-02NM
78600-01NM
Interface
equipment:
78301-01NM
78321-01NM
78345-06NM
78310-01NM
78315-01NM
Fire Sensors:
78200-01NM
78215-01NM
78275-01NM
78220-01NM
78230-01NM
78260-01NM
78285-01NM
Manual Call Point:
78150-52NM
78155-52NM
78150-22NM
78150-55NM
78150-25NM
Tee Breaker and
Slave Units:
78299-01NM
78299-02NM
78299-03NM
Alarm Sounder:
78400-02NM
78400-03NM
78277-01NM
Network:
78520-01NM
EMC Compliance
Board fixing
78910-03NM Issue 2_10/96
2-3
Senator II Installation Manual