Computer&instrumental cable PE insulation computer&instrumental signal cable PVC sheath,copper wire braided

Computer&instrumental cablePE insulation computer&instrumental signal cablePVC sheath,copper wire braided

Extension and compensating wire and cable used in thermocouple

1 ApplicationWithin certain range of temperature, the nominal value of thermal electro-motive force of extension and compensating wire and cable the same that the cooperating thermocouple. It connect the thermocouple to measuring instrument, the producing error from temperature change on their connecte can be compensated. Thus they may constitute general class or precision class systems of temprature measured and controlled.2 Executive standards as followO/RFDL 15--2007 Equivalent adopt GB/T 4989—94 and IEC 584-3 (1989)3 Graduated No. and name of thermocouple, type and name of extension and compensating wire,name of anode and cathode of alloy wire.

Graduated No.of thermocouple	Name of thermocouple	Type of wir	Name of wire	Name of alloy wire
Anode	Cathod
S	Pt,Rh10-Pt	SC	Cu -Cu,Ni0.6	Cu	Cu,Ni0.6
R	Pt,Rh13-Pt	RC	Cu -Cu,Ni0.6	Cu	Cu,Ni0.6
K	Ni,Cr-Ni,Si	KCA	Fe- Cu,Ni22	Fe	Cu,Ni22
KCB	Cu -Cu,Ni40	Cu	Cu,Ni40
KX	Ni,Cr10-Ni,Si3	Ni,Cr10	Ni,Si3
N	Ni,Cr,Si-Ni,Si	NC	Fe- Cu,Ni18	Fe	Cu,Ni18
NX	Ni,Cr14,Si-Ni,Si4	Ni,Cr14,Si	Ni,Si4
E	Ni,Cr-Cu,Ni	EX	Ni,Cr10-Cu,Ni45	Ni,Cr10	Cu,Ni45
J	Fe- Cu,Ni	JX	Fe- Cu,Ni45	Fe	Cu,Ni45
T	Cu -Cu,Ni	TX	Cu -Cu,Ni45	Cu	Cu,Ni45
Note:C-- compensating wire:X-- Extension wire.

4 Operation characteristic4.1.The used environmental temperature of insulation and sheath material, lowest laying temperature and permitted minimum bending radius for wires and cables.

Insulation and sheath material	Used environment temperature °C	the lowest laying temperature °C	permitted minimum bending radius,mm
70°CPVC,FR-PVC	-30~+70	0	Non-armor and non-copper  tape shield: 6 times of cable O.DArmor and copper tape shield:12 times of cable O.D
105°CPVC,FR-PVC	-25~+105	0
70°C PE or HFLS-FR-PO	-40~+70	-25
105°C XLPE or HFLS-FR-XLPO	-30~+105	-15
FEP	-60~+200	-35

4.2.Heat-resistant class (the use of class), allowance error class and working temperature for extension and compensating wires and cables.

graduated No.of thermocou-ple	Type of wire	Heat-resistant class and allowance error class
General use	Heat-resistant use
General class	Precision class	General class	Precision class
Code	Working temperat-ure°C	Code	Working temperat-ure°C	Code	Working temperat- ure°C	Code	Workingtemperat-ure°C
S or R	SC pr RC	G G(100)	0~70 0~100	GS GS(100)	0~70 0~100	H	0~200	-	-
K	KCA	G G(100)	0~70 0~100	GS GS(100)	0~70 0~100	H	0~200	HS	0~200
KCB	G G(100)	0~70 0~100	GS GS(100)	0~70 0~100	-	-	-	-
KX	G G(100)	-20~70 -20~100	GS GS(100)	-20~70 -20~100	H	-25~200	HS	-25~200
N	NC	G G(100)	0~70 0~100	GS GS(100)	0~70 0~100	H	0~200	HS	0~200
NX	G G(100)	-20~70 -20~100	GS GS(100)	-20~70 -20~100	H	-25~200	HS	-25~200
E	EX	G G(100)	-20~70 -20~100	GS GS(100)	-20~70 -20~100	H	-25~200	HS	-25~200
J	JX	G G(100)	-20~70 -20~100	GS GS(100)	-20~70 -20~100	H	-25~200	HS	-25~200
T	TX	G G(100)	-20~70 -20~100	GS GS(100)	-20~70 -20~100	H	-25~200	HS	-25~200

Copper Core PVC insulation and sheath collective shield computer&Instrumental signal cable