Huawei OceanStor 2000 V3 Series Features Manual page 55

OceanStor V3 Series
HyperMetro Feature Guide for Block
l
Issue 05 (2018-01-30)
Checking the cable layout
Table 3-7 lists the check items.
Table 3-7 Cable layout checklist
No. Check Item
1 Labels are correctly attached to cables.
2 Cables are laid out in an untangled and orderly fashion.
3 When cables pass through the cable ladder, cables are secured to the beam of
the cable ladder.
4 Troughs are used to route cables outside the cabinet and cables do not
overflow the troughs.
5 The bending radius of optical fibers is equal to or larger than 50 mm.
6 The power cable and the protection ground (PGND) cable are bent smoothly.
7 The power and PGND cables are connected correctly and firmly.
8 Ground cables of a cabinet are connected correctly and firmly.
9 The diameters of the power and PGND cables meet the power distribution
requirements.
10 The power cables, grounding cables, and signal cables outside the cabinet are
laid separately with a distance of larger than 30 mm.
11 Cables are bound in a rectangular shape. (Single-core cables can be bound in
a round shape.)
12 Cables are bent with a bend radius of greater than 60 mm at turning points
and are not bundled at bend points.
13 Optical fibers are laid out without using force or having unnatural bends and
squeezes.
14 OT terminals of the power cables and grounding cables are welded or
crimped firmly.
15 Protection tubes or insulating adhesive plasters are used to wrap power
cables, naked cables, and OT terminal stems of ground cables. There should
be no bare copper wires in OT terminals.
16 All cabinets and enclosures with metal or partially metal shells are correctly
grounded and connected.
17 Cables are correctly bundled at an even spacing. After cables are bundled
with cable ties, the excess parts of the cable ties are cut off without burrs. All
the cable ties face the same direction for a neat appearance.
18 The DC power cables shipped with the storage device are black and blue,
and the PGND cable is olive or yellow.
19 Power cables and grounding cables use the entire copper core without a joint.
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