e;
splice in underground wire.
Insulated wire shall be protected
from mechanical injury. The insulation
shall not be punctured for test pur-
poses. Splice in underground wire shall
have insulation resistance at least
equal to the wire spliced.
§ 236.75
[Reserved]
§ 236.76
Tagging of wires and inter-
ference of wires or tags with signal
apparatus.
Each wire shall be tagged or other-
wise so marked that it can be identi-
fied at each terminal. Tags and other
marks of identification shall be made
of insulating material and so arranged
that tags and wires do not interfere
with moving parts of apparatus.
[49 FR 3384, Jan. 26, 1984]
I
NSPECTIONS AND
T
ESTS
; A
LL
S
YSTEMS
§ 236.101
Purpose of inspection and
tests; removal from service of relay
or device failing to meet test re-
quirements.
The following inspections and tests
shall be made in accordance with speci-
fications of the carrier, subject to ap-
proval of the FRA, to determine if the
apparatus and/or equipment is main-
tained in condition to perform its in-
tended function. Electronic device,
relay, or other electromagnetic device
which fails to meet the requirements of
specified tests shall be removed from
service, and shall not be restored to
service until its operating characteris-
tics are in accordance with the limits
within which such device or relay is de-
signed to operate.
[49 FR 3384, Jan. 26, 1984]
§ 236.102
Semaphore or searchlight
signal mechanism.
(a) Semaphore signal mechanism
shall be inspected at least once every
six months, and tests of the operating
characteristics of all parts shall be
made at least once every two years.
(b) Searchlight signal mechanism
shall be inspected, and the mechanical
movement shall be observed while op-
erating the mechanism to all positions,
at least once every six months. Tests of
the operating characteristics shall be
made at least once every two years.
[49 FR 3384, Jan. 26, 1984]
§ 236.103
Switch circuit controller or
point detector.
Switch circuit controller, circuit
controller, or point detector operated
by hand-operated switch or by power-
operated or mechanically-operated
switch-and-lock movement shall be in-
spected and tested at least once every
three months.
[49 FR 3384, Jan. 26, 1984]
§ 236.104
Shunt fouling circuit.
Shunt fouling circuit shall be in-
spected and tested at least once every
three months.
§ 236.105
Electric lock.
Electric lock, except forced-drop
type, shall be tested at least once every
two years.
§ 236.106
Relays.
Each relay, the functioning of which
affects the safety of train operations,
shall be tested at least once every four
years except:
(a) Alternating current centrifugal
type relay shall be tested at least once
every 12 months;
(b) Alternating current vane type
relay and direct current polar type
relay shall be tested at least once
every 2 years; and
(c) Relay with soft iron magnetic
structure shall be tested at least once
every 2 years.
[49 FR 3384, Jan. 26, 1984]
§ 236.107
Ground tests.
(a) Except as provided in paragraph
(b) of this section, a test for grounds on
each energy bus furnishing power to
circuits, the functioning of which af-
fects the safety of train operation,
shall be made when such energy bus is
placed in service, and shall be made at
least once every three months there-
after.
(b) The provisions of this rule shall
not apply to track circuit wires, com-
mon return wires of grounded common
single-break circuits, or alternating
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