Cable Specifications
and Cable Installation:
Group 1: Single Twisted pair/Triad, Unshielded.
Conductor: Stranded, Circular Copper (Material) as per ASTM
B8.
Conductor Size: # 16 AWG
Primary Insulation Material:
Flame Retardant PVC or XLPO or XLPE minimum temperature rating is 90o
C (NEC 501-4 (b), NEC 502-4 (b).
Primary Insulation Voltage Rating: 300V for Type PLTC and
type IT cable, 600V for type TC Cable.
Primary Insulation Thickness: (0.38 mm for PLTC and ITC
Cable), (0.64 mm for TC cable).
Shield Thickness: 0.022 mm
Group
2: Single twisted pair/triad shield.
Shield Material: Aluminum foil bonded to non hygroscopic
polyester (Mylar) tape.
Shield Thickness: 0.022 mm
Shield Application:
Helical, Minimum 25% overlap, to provide 100% coverage and electrical
isolation from conductors.
Group
3: Multipair / Triad, Unshielded or without overall shield thickness 0.022 mm.
Communication Wire:
Not required if required shall be manufacturer’s standard size,
Insulation same as primary insulation – Orange Color.
Group
4: Multipair / triad, Individual and overall shields.
Group
5: Thermocouple Extension wire conductor – solid thermocouple extension wire as
per ANSI MC 96.1
Conductor Size: # 16 AWG for singal pair, # 18 AWG for
Multipair.
Color Code: ANSI MC
96.1(Temperature Measurement Thermocouple), (Yellow and Red) Negative shall be
Red color and magnetic
Terminal Block: As
per minimum thickness of terminal block shall be 5 mm or higher with Spring type
terminal block are not acceptable, Terminal block shall be fire retardant
halogen free, High strength material such as polyamide on equivalent in
accordance with UL94.
Lugs: Drawing /
Color Codes / Ferruling will be done for easy identification with use of lugs.
Lugs are two types. One is crimping type and the other one is soldering type.
Type of Lugs: (1) Shanap Type (2) Pin Type (3) Ring Type (4)
U Type
Gland Size: ½ inch, ¾
inch, 1 inch, 1½ inch, 2 inch.
Thread Type: ET
(Equal Thread), BSP (British Standard Pitch), NPT (National Pipe Thread).
Color Code of
Instrument Cables:
AC Supply:
Phase - Black
Neutral - White
Ground - Green or Green with yellow tracer
DC Supply:
Positive - Red
Negative - Black
Signal Pair:
Positive - Black
Negative - White
Signal Tried:
Positive - Black
Negative - White
Third Wire - Red
Thermocouple:
Positive - as per ANSI MC 96.1 (Yellow)
Negative - as per ANSI MC 96.1 (Red)
Type of Thermocouple:
T Type Thermocouple Copper
+ Constant -185 ~ 371 oC Blue – Red/White
J Type Thermocouple
Iron + Constant -190 ~ 750 oC White – Red/White
K Type
Thermocouple Cromel +
Alumel -190 ~ 1250 oC Yellow – Red/ White
E Type Thermocouple
Chromel + Constantan -196 ~ 982
oC Purple – Red/ White
S Type Thermocouple
Platinum/Rhodium-Platinum -18.0 ~
1760 oC Black – Red
R Type Thermocouple
Pt87/Rh13 + Platinum -17.7 ~ 1704
oC Black – Red/ White
Pulling tension of FOC =
600 Pounds.
Fir Resisting: (CI: Circuit Integrity) Flame
Retardant, for transmission of analog or digital signal to instrument and
control systems.
Insulation: Silicon Rubber
Armor: Zinc Coated round steel.
RE: Instrument Cable
2G: Insulation of Silicon
SI: Collective
Screen
H: Inner Jacket of LSZH
SWA: Round Steel
Wire Armor
I/W: Outer Jacket
of heat resistant PVC
FL: Reduced Flame Propagation
CI: Circuit
Integrity
FB: Field Bus Cable
Y: Outer sheath of
PVC
2X : Insulation of
XLPE
PIMF: Pair Screen
HVAC: Heating
Ventilation & Air Conditioning.
ISDN: Integrated Service Digital Network
LASER:Light Amplification by Stimulated.
Cable Bending Radius (j) = 10 x Cable Diameter
Tube Bending Radius (j) = 05 x Tube Diameter