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a) Overview i. all the cable channels need to use large thickness, hot-dip
plating steel plate welding, in line with the BS4568 Part 4 and other
standards or its standards. ii. all the cable pipe fittings and components
required to meet the requirements of BS4568 Part II or its Of such
standards. 25 iii. Flexible cable pipes and fittings to be in line with
the requirements of BS731 Part I, or with its Standards, In addition, the
cable channels for the metal to be waterproof, outsourcing low smoke,
halogen-free Compound materials, and with cable channels into a separate
grounding wire. iv. cable minimum size of pipeline diameter 20mm. v.
low-voltage circuits and ultra-low-voltage circuit to use a separate cable
ducts. vi. all for the outdoor pipe fittings and cable box is not subject to
any required weather Of. Not weather the effects of pipe fittings and cable
boxes can also be used in the non-outdoor Other provisions of the location
or the location of the designated engineer. vii. all drag lines connecting
boxes and boxes need to comply with the relevant standards, the need for
sufficient space for cable drag Into, out. They need to use made of
malleable iron plating, the surface of the seam machine Armed welding to
ensure that dust junction. Me the need for all circuit pipeline, the internal
Threading, circuit box to be highlighted with the shoulder-shaped part of
the merger in order to achieve access cable channel Collection of solid
brass grounding terminal, 5mm in diameter at the base of the set screw hole of
the correct Docking. viii. the end of all cable channels in the cut off
after deduction hinge screws in addition to all hair mouth or sharp edges
Edge. Buckle screws in the cable channels, sockets and accessories of all
dirt, paint or Oil, to be clear before installing. ix. the end of the
cable channels to be firmly in the docking connector. When they opened in the
fuse Clearance, fuse plate, at the termination box and switch box, the need
to use a smooth bore The plug-in copper bushing, compression gaskets, and
socket connection. All the lines and all exposed Pipe to be painted after
installation agent aluminum (aluminum spirit paint) with the bare gold
Approach is similar. x. all the cable channels to be away from the water
pipes, gas pipes and other public facilities to 80mm On. xi. at any time
within the water does not allow the cable channels, all cable channels there is
sufficient demand Ventilation and drainage. xii. in pouring Add template
before the end of the cable channels to be temporary with a connector and the
solid Copper sealing plug. xiii. all pipe to be produced on site to suit
the situation at the scene. In the cable along the pipeline The need for a
sufficient number of suitable size cast iron hot-dip plating line dragging me,
so that more cable capacity Shoes, no damage to dragging. Between the two
turns, or the greatest straight-line distance 15m line to install a box
trailer. xiv. all the cable channels to be pre-wiring at the beginning of a
thorough cleaning, do not be led into the cable system Any parts, until all
the components ready to drag line pipe and cable boxes installed Place.
26 xv. cable channels through the structure of joints, the need to
use scalable device cable channels. For Wearing a grounding line no less
than the size set aside from the expansion joints on each side of the recent
cable Channels between the boxes containing the size of the largest
conductor. xvi. all cables after the installation of the piping system to be
in continuous electrical, mechanical continuous and sufficient
Sub-water-resistant. xvii. each cable channels there is a need to 1.6mm2
electroplating line traction to facilitate the subsequent Pull cable.
xviii. in the cable channels do not need the bundled cables. b) the
surface of the cable channels i. all cable channels for the surface of the
pipe box and accessories, for their exclusive use of the system Made.
ii. in the Electrical and Mechanical Plant, the man-made gap in ceiling,
wall panels can be separated from the back, convex The lower part of the
floor and do not use hidden pipes pouring pipe and where the need for control
cables Road to install on the wall or ceiling on the belly of the arch.
Their distance from the cable through the slot (Distance saddle) installed,
and the termination of cable channels in the deep box. Surface Cable
channels without bending or placement into the accessories, in their turn
through walls, the need to Behind the lead for me. iii. all installed on
the surface of the cable channels in the buildings need to clean the surface of
course, real security Vertical and horizontal hold, vertical direction by
the pitch to pitch and level of 1200mm 900mm full support. Man-made gap in
the ceiling of the cable channels and should not be Ceiling support. c)
flexible steel cable pipe i. the need for flexible cables in the pipeline,
the length should not exceed 2m, and the need to provide a diameter not Less
than 2.5mm2 copper conductor for grounding.
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