bids are invited for 1 providing self regulating heat tape resistance heating cable suitable for freeze protection of pipelines and utilities having rated output of thirtyfive w per meter at two hundred twenty v ac supply the heating cable shall automatically adjust its heat output based on surrounding temperature conditions to prevent freezing and overheating the cable shall be suitable for continuous operation in outdoor conditions flexible for installation around pipelines joints and valves and compatible with temperature controller systems 2 providing mtwenty threepin connector suitable for making secure electrical joints between self-regulating heat cable terminals designed for reliable power and signal continuity the connector shall be rated for operation at two hundred twenty v ac supply and compatible with heating cables of specified capacity it shall ensure safe and firm termination with robust insulation to prevent moisture ingress short circuits and electrical leakage the connector shall be constructed from high quality weather resistant materials suitable for continuous outdoor operation under varying environmental conditions it shall provide ease of installation with a compact and durable design for use at pipeline joints terminations and interconnections the mtwenty connector shall be compatible with temperature control systems and associated accessories ensuring long term performance safety and protection against overheating corrosion and mechanical stress 3 providing temperature differential controller with auto and manual operation housed in a robust ip sixty five rated enclosure suitable for controlling heat tracing systems to prevent freezing of pipelines and utilities the controller shall be designed to automatically switch the heat tape on oblique off based on preset temperature differentials ensuring optimal performance and energy efficiency the controller shall include in built safety features such as overrun protection and burn out protection to safeguard the heating cable and associated equipment from damage the enclosure shall be weatherproof and suitable for outdoor installation offering protection against dust and water ingress and ensuring reliable long term operation under harsh environmental conditions 4 providing pt hundred temperature sensors with ten metres cable suitable for accurate temperature measurement and control in heat tracing and pipeline monitoring applications the sensors shall be of platinum resistance type pt hundred ensuring high precision stability and repeatability over a wide temperature range.each sensor shall be supplied with a ten metre long high quality insulated cable suitable for reliable signal transmission and compatible with temperature controllers and monitoring systems the cable shall be durable, flexible, and suitable for installation in outdoor and industrial environments 5 providing heat tape laying and installation services for self-regulating heat tracing systems including proper routing and fixing of heating cables along pipelines joints valves and exposed sections near utility areas the installation shall be carried out to ensure uniform heat distribution and effective freeze protection as per recommended practices 6 providing three core one point five sq mm pvc insulated and pvc round sheathed multicore flexible cable comprising bright annealed bare copper conductors suitable for heavy duty industrial applications and rated for voltage grade up to eleven hundred volts the cable shall conform to the requirements of is six nine four and two thousand ten the conductors shall be made of high conductivity annealed copper ensuring efficient current carrying capacity and minimal losses each core shall be uniformly insulated with high quality pvc compound and the overall cable shall be protected with a durable pvc outer sheath providing resistance against moisture abrasion and mechanical stresses the cable shall be flexible in nature allowing ease of installation in confined and complex routing conditions it shall be suitable for continuous operation in indoor and outdoor environments offering reliable performance electrical safety and long service life total quantity : 40660