Products Description

Fire rated instrumentation cable is signal cable made to keep working for a defined period when exposed to fire.

Used for safety-related instrument circuits including 4-20mA control signals. Special fire-resistant insulation helps hold signal integrity during fire emergencies. Common on process plants, vessels and offshore platforms.

Available in multicore or multipair versions with shielding options. Different fire performance grades match various project requirements.

Conductor	Class 5 tinned copper
Cross-section	0.5-2.5 mm²
Temperature Range	-40℃ ~ +80℃
Marine certifications	ABS/DNV/LR/CCS
Usage scenario	offshore and vessel instrument signal loops

Application

marine application

Certificate

ISO Quality Management System Certificate
ABS/DNV/LR/CCS Approved Certificate

certificate 03

1.Construction
S/N	Construction		Requirement
1	Conductor		1 Class 1 copper conductor
2	Fire resistance		Mica tape
3	Insulation		XLPE
4	Metal shield		Aluminum polyester composite film
5	Inner sheath		LSZH
6	Armor		Galvanized steel wire armor
7	Sheath		LSZH
2. Cable identification Core identification: White insulation printed with black digits Sheath color: Black 3. Standard compliance GB/T9330-2020
4.Application
S/N	Item				Technical requirement
1	Rated voltage				AC 300/500V
2	Operating temperature				'-15~90℃
S/N	No. of cores × sectional area	Structure of conductor	Approx. dia. of conductor	Nominal thk. of insulation	Nominal thk.of sheath	Approx. OD of cable	Approx. weight of cable
	no.× sqmm	no./mm	mm	mm	mm	mm	kg/m
1	12×2.5	1/1.76	1.76	0.7	1.7	26.0	1.269
5. Electrical characteristics
S/N	No. of cores × sectional area ×		Max. DC resistance of conductor@20℃ 20℃			Voltage withstand test
	no.× sqmm		Ω/km			kV/min,no breakdown
1	12×2.5		7.41			3/5

Huayu Fire Rated Instrumentation Cable Benefit

90-minute fire circuit retention, keeps control signals working under fire conditions
Low capacitance ≤220pF/m, delivers solid 4-20mA & RS485 signals up to 1000m
Class 5 tinned copper conductors, suitable for tight routing and repeated bending
70dB+ shielding efficiency, cuts EMI from motors and power equipment
55dB+ crosstalk rejection, lowers signal noise between cores
Insulation resistance ≥5000MΩ·km, stable for long-term offshore service
Operating range -20℃ ~ +80℃, resistant to salt-fog, oil and moisture
LSZH fire-rated sheath optional; each batch fully fire-&-electrically tested