What is the meaning of enclosure in a letter?
An enclosure is something that closes you in, like a pen or a cage. If you’re sending a letter to your literary agent and you’re including a few pages of your latest limericks, you might put “enc.” at the bottom of the letter, to indicate that you’ve included something extra in the envelope — an enclosure.
What is the opposite of enclosure?
enclosure. Antonyms: space, common, waste, wild, desert, wilderness, void.
What do you mean by enclosure in electrical?
An electrical enclosure is a cabinet or box that protects electrical or electronic equipment and prevents electrical shock. Enclosures are often used to protect the following types of equipment: Circuit breakers, contactors, control panels, and switches.
What are 4 common types of motor enclosures?
The most common types of enclosures are:
- Open Drip Proof (ODP)
- Weather Protected (WP1 / WP2)
- Totally Enclosed Fan Cooled (TEFC)
- Totally Enclosed Non-Ventilated (TENV)
- Totally Enclosed Air Over (TEAO)
- Totally Enclosed Forced Ventilated (TEFV)
- XP (Explosion Proof)
What is the most common type of enclosure used in residential wiring?
NEMA 1 ELECTRICAL
What is metal enclosure?
If your box will be located outside, a metal enclosure will protect it from rain, snow, sleet, and extreme weather fluctuations. Plastic, on the other hand, expands when exposed to harsh conditions. While metal does cost more than plastic, it is longer lasting and more durable.
What is a NEMA 12 enclosure?
NEMA 12: Protects against the ingress of objects, fingers, falling dirt, settling dust and drips. It is similar to NEMA 3 but it is for indoor use, so instead of protecting against windblown dust it protects against settling airborne dust, lint, fibers, and flyings.
What is a panel enclosure?
An electrical enclosure is a cabinet for electrical or electronic equipment to mount switches, knobs and displays and to prevent electrical shock to equipment users and protect the contents from the environment. The enclosure is the only part of the equipment which is seen by users.
Which material is used for making instrument cabinet?
They ensure high shear strength and have excellent mechanical strength. Our entire collection is corrosion resistant in nature and maintains wide application across the area. Sheet metals cabinets ensure excellent surface treatments and are installed in industrial and commercial establishments.
What NEMA enclosure number is recommended for most solid state control devices?
12
Which type of motor enclosure is best?
Selecting the Correct Motor Enclosure
- Open Drip Proof – ODP motors are almost always the least expensive of all motors which often times makes them the preference of equipment OEM’s.
- Totally Enclosed Fan Cooled – TEFC motors, while a bit more expensive than the ODP motor, are usually cheaper considering total cost of ownership.
- Bob Bolhuis.
What is a NEMA 3R enclosure?
NEMA 3R enclosures are typically used in outdoor applications for wiring and junction boxes. This style of enclosure. provides protection against falling rain, sleet, snow, and external ice formation. Indoors they protect against dripping water. This style of enclosure does not have a gasketed sealing surface.
What is ODP enclosure?
The ODP (open drip proof) is one of the most common types of enclosures. The enclosure is open and vented at the back end of the motor and allows air to circulate in and around the motor windings carrying off heat….
What is the difference between ODP and Tefc Motors?
An open drip proof or ODP motor is a type of motor that typically runs cooler and does not overheat. On the other hand, a totally enclosed fan cooled, or TEFC motor has a closed off chamber which requires the use of an external fan to blow air over it….
Which of the following type of motor enclosure is safest?
Which of the following types of motor enclosure is safest?
- A. Totally enclosed.
- Totally enclosed fan cooled.
- Open type.
- Semi closed.
What does TEAO mean?
Totally Enclosed Air Over
What is TENV?
Well – the answer is simply the motor is Totally Enclosed, and Non-Ventilated. Based on NEMA (National Electrical Manufacturers Association) definition, TENV states that the motor housing is fully enclosed and is not ventilated with a fan. The motor is being cooled unassisted (natural convection cooling)….
What does C face motor mean?
A “C-Face” motor is a common American mechanical standard designed with a rugged flange on the face of the motor for mounting purposes. The weight of the. motor is supported by the flange, which is most commonly attached to a gearbox. The flange is strong enough to cantilever the motor.
What is the difference between Tefc and TENV Motors?
Totally Enclosed, Fan-Cooled (TEFC) Motors have an external fan which circulates outside air to the motor. Totally Enclosed, Nonvented (TENV) Motors do not have air openings. While air does not freely move between the inside and outside, the motor’s construction is not air- or liquid-tight….
What type of motor is used in exhaust fan?
induction motors