7
EM-MI Heating Cable with
Connection Leads
The EM-MI heating cable (1) provides
even heat. It consists of a metal conduc-
tor surrounded by mineral insulation.
The conductor and the insulation are
protected from mechanical damage by
a copper jacket with a non-PVC outer
jacket.
The EM-MI heating cable is supplied rea-
dy for installation with “cold” connection
leads (2) at both ends.
Each connection lead comprises a short,
rigid length and 3 m of fl exible cable
connected directly to the control panel.
A conduit (supplied on site) protects the
fl exible length of cable and the crossover
from the rigid to the fl exible cable from
contact with the asphalt. The fl exible cab-
le is provided with braid for earthing.
EM-MI Heating System
The EM-MI System comprises the following items:
Spacer (3), Junction Box (5) and
Supply Lead (10)
The purpose of the spacers is to hold the
MI heating cable in place and to enable a
regular laying spacing to be maintained.
Extension of the cold connection leads
needs to be done in a junction box. The
connection between the control panel
and the junction box is made by a suitab-
le supply lead.
Controller (9)
Raychem offers control units specially
designed for snow and ice melting appli-
cations. They incorporate combined tem-
perature and moisture sensors to ensure
effi cient operation of the system.
Panels (8)
Raychem offers a range of standard
panels specifi cally designed for ramp
heating applications. Each panel contains
a built in control unit, plus circuit breakers
and residual current devices (rcds).
3 m
5–20 cm
Flexible
connection lead
Crossover with
fl exible / rigid cable
Rigid cable Crossover with rigid /
MI heating cable
MI heating cable
No asphalt or in conduit
Asphalt
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