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Cable pipes and fittings

    

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.
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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.

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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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