Table of Contents
What is ul746b?
The UL 746B standard distinguishes between three sub-categories of the RTI: Electrical RTI which relates to electrical insulating performance. Mechanical impact RTI which relates to mechanical performance with impact. Mechanical strength RTI which relates to mechanical performance without impact.
What is RTI electrical?
The Relative Thermal Index (RTI) is the maximum service temperature at which the critical properties of a material will remain within acceptable limits over a long period of time. The applicable standard is UL 746B which specifies three ratings assigned to a material: Electrical – measuring dielectric strength.
What is UL temperature rating?
Comparison Chart For UL Wires & Cables
| UL STYLE NUMBER | AWG SIZE RANGE | TEMP. RATING |
|---|---|---|
| 1009 | 28 – 16 | 90°C |
| 1010 | 28 – 16 | 105°C |
| 1011 | 28 – 9 | 80°C |
| 1012 | 28 – 9 | 80°C |
What is continuous service temperature?
The continuous service temperature, or continuous use temperature (CUT), is the maximum ambient service temperature in air that a material can withstand and maintain 50% of its initial physical properties after long-term service.
What is UL F1?
The UL F1 rating meets industry standards for long-term UV exposure, making the housings suitable for outside applications where parts are subject to frequent or extended periods of exposure to sun light.
What is Max service temperature?
CUT, also known as maximum service temperature (Tmax), is the highest temperature at which the material can be used, for prolonged periods, without significant change in properties. Increase in temperature could cause degradation, chemical change, and excessive creep.
What is a Mould temperature?
The mould temperature is probably the most important temperature in terms of quality and this affects quality in many ways. The mould temperature is not the same thing as the cooling water temperature, it is the temperature of the actual mould cavity after it has stabilised.
What is termination temperature?
Termination Ratings Can use 60°C, 75°C, 90°C or higher temperature rated conductor, but the ampacity of the conductor must be based as if conductor is rated 60°C. Can use 75°C, 90°C or higher temperature rated conductor, but the ampacity of the conductor must be based as if conductor is rated 75°C.
What is rated temperature?
It is usually defined as the maximum continuous temperature that the wire can withstand during its lifetime. It is generally limited by the thermal aging characteristics of the polymers, i.e., the plastics used to insulate and/ or jacket the wire.
What is UL 746A?
UL 746A, 6th Edition, September 6, 2012 – UL Standard for Safety Polymeric Materials – Short Term Property Evaluations. These requirements cover short-term test procedures to be used for the evaluation of materials used for parts intended for specific applications in electrical end products.
Is polycarbonate affected by UV?
Polycarbonate as a material blocks almost the entire relevant UV spectrum, meaning both UVA and UVB. The material absorbs UV radiation and does not allow it to be transmitted through.
What is the normal operating temp?
between 195 degrees and 220 degrees
Most experts agree that your engine should run between 195 degrees and 220 degrees.
How do I check for mold temperature?
Use a contact or strap-on thermometer (or an infrared temperature gauge, if you have one) to check the temperature at the mold and at several other points in the system. Check the temperature rise from where the heat-transfer fluid enters the mold to the point where it exits the mold.