Cabling; Cabling And Preparation Of Cables For Termination; Cabling Jointing; Feeder Cable To Feeder Cable Using The Bicc Mpj Series Joint - Siemens BH17 7ER Installation Manual

3.

CABLING

This section applies to paired loop feeder cable and multicore cable to
Detector Pole Boxes and Signals Heads.
3.1

Cabling and Preparation of Cables for Termination

1. Traffic intersections are cabled in accordance with the schedule shown on
the STS drawing.
2. Prior to commencing cabling, the operation should be planned so that, as
far as possible, cable drums are handled as little as possible and the
number of cable drums transported to site reduced to a minimum. During
the laying of cable, cable jacks or drum rollers should be used to
advantage, especially on long cable runs.
3.2

Cabling Jointing

In traffic signal installation work there are two types of cable joints that have to
be made. These are feeder cable to feeder cable and feeder cable to detector
loop tails. The feeder cable may be armoured or un-armoured.
All jointing of feeder cable to feeder cable should use the BICC MPJ series
(MPJ1 or MPJ2) resin filled torpedo joint unless the customer specifies other
jointing systems.
Jointing of feeder cable to detector loop tails will use the same joint unless the
Authority specifies a heatshrink or other type of joint. Refer to section 2.7 for
identification of pairs.
Some Authorities are specifying joints based on short lengths of cable duct
with cable duct plugs. The manufacturers' instructions must be followed in
particular in ensuring good contact and joint sealing. Any instructions
regarding moisture-removing precautions must be strictly adhered to.

3.2.1 Feeder Cable to Feeder Cable using the BICC MPJ Series Joint

Ignore instructions marked * referring to armour where not applicable.
Assumes MPJ1or MPJ2 jointing kit used. See Figure 30 and Figure 31.
The following additional items are also required if armoured feeder is to be
joined:
PVC insulated wire - green/yellow 6 sq. mm.
Earthing bands – 2 off.
Worm drive clips – 2 off.
* Cut the earth wire to length and bare the ends.
* Using the hacksaw provided in the installation tool kit cut through the
outer insulation of one cable approximately 120 mm from the end ensuring
that the armour is well scored.
667/HE/20663/000 Issue 13
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OOP ETECTOR ANDBOOK
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