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Grouping of circuits and conductors
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Switching Equipment, Combat System, Command and Control, Fire Control, And Interior Communication General Specification
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MIL-S-17000N(SH)
(f) Harness wiring between the panel-mounted assemblies, circuit
breakers, or switches and module connectors or terminal boards
shall be broken down into individual bundles not over 1.75
inches in diameter to permit easy closing of the door. Wiring
shall be arranged so that access to individual contacts of the
connectors is provided.  A minimum of 4 inches of clear space
shall be provided between wiring on the back of the door and
the modules when the door is closed.
3.6.27.3.1 Wiring shall be arranged to permit bundling by one or more of
the following methods:
(a) Binding.  Tape for binding shall be as specified in requirement
11 of MIL-STD-4540
(b) Sleeving insulation.  Sleeving insulation shall be in accordance
with requirement 11 of MIL-STD-454.
(c) Tying.  Plastic devices for tying shall be in accordance with
MIL-S-23190.  When the wire bundle is formed and secured, the
device shall not loosen under vibration.
3.6.27.4 Switch contact wiring.  For rotary switches, wiring shall be
installed between the switch contacts, the panel connector(s) (or terminal
board(s)), and other parts mounted within the panel assembly. For linear move-
ment switches, no internal wiring shall be required for the switch contacts.
3.6.27.5 Panel-mounted assemblies.  Wiring leaving or entering the panel-
mounted assembly shall connect to the connector receptacles, or when the circuit
load exceeds 10 A, to the appropriate terminal boards.
3.6.27.6 Interpanel wiring.  Wiring between panel-mounted assemblies on
the same section shall be routed directly from the connector or terminal board
of one assembly to the connector or terminal board of the other assembly.
3.6.27.7 Intersection wiring.  Wiring between sections shall be routed
from panel assemblies or back section modules directly to the top (A) module
connector plug.  One module (A) (see MIL-S-17000/1, MIL-S-17000/3, and
MIL-S-17000/10 for detail of (A) connector plug) connector plug shall not be
used to terminate wiring from both a panel assembly and a back section module.
Wiring between sections shall be terminated in connector receptacles with pin
contacts.
3.6.27.8 Wiring, both fixed and flexible, shall be protected to prevent
chafing and abrasion due to vibration or flexing as required by 3.5.6.  Plastic
sheaths shall be in accordance with type C of MIL-I-631 and may be similar to
a covering known as "Zipper tubing".  A sealing compound shall be used with this
tubing.  The use of clamps or wrapping and tying devices (see 3.6.27.3.1(c))
with integral mounting facilities is preferred for securing fixed wiring.  Metal
clamps, if used, shall be insulated and shall not form a complete loop around
the wiring.
3.6.28 Wiring space.  Provision shall be made for sufficient wireway space
within the equipment to facilitate connection (by the installing activity) of
the ship cables to the equipment, so that these cables will not result in
39

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