b'Pre-Heating EquipmentInduction Coils with DieselGenerators OR Rotary ConvertersInductioncoilsareusedwidelywithinthepipelineindustry to pre-heat the pipe substrate. PIH offers a wide range of induction coils to suit a widerangeofpipelinediametersandtemperaturerequirements.TheinductioncoilsarepoweredbyeitherDieselorRotary Converter generators (90 kVA200 kVA). HighpowderedInvertersarealsoavailableofferingimproved cycle times for pre-heating heavy wall, largediameter field joints.Weld Pre-Heat Coils or Inter-PassCoils and Post Heat Treatment Coils Prior to the welding activities, the pipe ends are pre-heated (typically 110oC-160oC). TheuseofInductionend-coilsprovideuniform,controlledheat.PipelineInductionHeat(PIH)areaspecialistproviderofInductionendCoilsandinter-passcoils,whicharepoweredbycompatiblegenerators or inverters, of varying power ratings.Theinductionheatend-coilsorinter-passcoilsaredesignedspecificallytothepipelineparameters(diameter and cut back) and to meet the cycle-timerequirements. The equipment is light weight and simpleto operate.92'