Product Information Motor and machine protection

Transcription

1 - Basic information The REISSMANN Sensortechnik heater bands were specifically designed for the electric motor industry. These heater bands are delivered as a finished product, in various combinations, of length and power output. - Application The heater bands prevent condensation in electric motors and also protect against frost damage. If condensation occurs inside the motor, creepage currents and short circuits may occur. - Advantages exclusive usage of silicone-free material prevention of outgassing of silicone protection of people and equipment, from dangerous gases very flexible design facilitates the matching of product to application Fig. 1: heater band type C - Construction The carrier material consists of a glass yarn and a resistance wire that is wound round the glass yarn. Afterwards the glass yarn is insulated by Teflon (Fig. 2). The junction between the lead-in and the resistance wire are insulated on both sides with shrink tubes. For protection against damage, from external sources, the entire heater band system is sewn into a fiberglass hose or sleeve (Fig. 1 and 3). The sewing in of the lead-in, at the end of the fiberglass hose, gives additional strain relief at the junction between the Teflon insulated resistance winding and the lead-in. - Certification VDE: UL: E Fig. 2: heater band type A 1-5

2 - Technische Daten Rated supply voltage 110 VAC/230 VAC 1) Insulation of the resistance winding Outer insulation fiber glass hose (mechanical protection) Testing of insulation 1) several currents available on demand Teflon (PTFE), 52% overlap, Wall thickness 0,20 mm fiber glass hose, wall thickness about 0.30 mm 2,5 kv/50 Hz; optional 8KV (type A) Rated temperature - 55 C bis C Alloy of the resistance resistance wire NiCr alloy Tolerance ± 10% tolerance of power Lead-in: length: variable in mm Teflon-strand; UL File 1199 max. operation voltage 600 V AWG 20/7 end connections are 10 mm partially bared Insulation of the junction of resistance winding and the lead-in: Kynar shrink tube; strengthened wall thickness after shrinking 0.5 mm, self-extinguishing according to UL 224, VW-1; MIL-I-23053/5 class 8; dielectric strength 43 kv/mm Resistance wire: NiCr 80/20 pure according to DIN material melting temperature 1400 C Contact: material: nickeled steel temperature limit T = 300 C manufactured according to DIN T2 B 1,5-7 Fig. 3: heater band type C Carrier material/fiber glass filament: fiber type E-Glas (Textilglas) application temperature limit at 450 C reaction to fire according to DIN 4102 noncombustible 2-5

3 Standard Standard types: types: length of bands / m voltage U/V power P/W 0, , , , , , , , , , , , , , , , , , , , Insulation of the resistance winding: material: PTFE specific density g/cm³ working temperature: -270 C up to +260 C thermal stability: up to +320 C thickness 0.1 mm flame retardant according to UL 94 V-0 Fiber glass hose: consists of silicate glass non-alkaline high mechanical tensile strength non-combustible, softening point +550 C UL File self-extinguishing according to UL 1441 VW-1 Sewing thread 1: meta-aramid (Nomex) highly temperature-resistant short-term up to C applicable, not melting non-flammable, self-extinguishing Sewing thread 2: glass sewing consisting of 100% glass fiber Teflon coating Heater band classes: length of heater bands from 0.2 m to 2 m for design B and C length of heater bands from 0.2 to 7.5 m for design A heating power from 8 W to 110 W for design B and C heating power from 4 W to 300 W for design A rated supply voltage of the heater bands according to the heating power 230 VAC, 110 VAC or 440 VAC Value of resistance calculated from the requested heating power. 3-5

4 Product Information Order nomenclature: H 23/ 040/ 068 Heater band type: Identification max. rated input AC voltage: 11 = 11 0V 23 = 230V 44 = 440 V Max. power P = 8 W up to 110 W valid for design B and C P = 4 W up to 300 W valid for design A 040 = power = 40W length of heater band: 203 mm up to 2000 mm for design B and C 203 mm up to 7500 mm for design A length x 10 [mm]: 068 -> length = 680mm Design: A: single folded insulated heating pipe, radial non heating ends lead-in on opposite sides B: twice folded insulated heating pipe, radial non heating ends lead-in on same side C: triple folded insulated heating pipe, axial non heating ends lead-in on opposite sides length of non-heating ends 500 mm up to 999mm length x 100 [mm]: 05 -> length = 500mm C

5 Responsibility: No responsibility will be accepted for thermistors which have not been installed and tested according to the relevant standards as previously listed in our data sheet. Due to the ongoing research and development program, product specification may be subject to change, at the manufacturers discretion. For further advice and information contact: 5-5