Cable Glands for cable size; Flameproof and weather proof glands

Cable glands are used in cables for following purposes:-
1.       For removing strain in cable connections
2.       For providing earthing in case of armored cables
3.       They are used for providing cable entry into a panel.
There are different types of glands available for different types of cables. Cables may be of armored type, Un-armored type.
There are following types of glands are used:-
1.       Indoor glands- Brass Material
2.       Outdoor glands- Brass Material
3.       Unarmored cable glands- Brass material
4.       Weather proof glands/ Flameproof glands- Brass material
5.       PG threaded glands

In Industries most widely armored cables are used. Gland sizes for these cables are as per below requirements:-
Weather and flameproof glands are used in industries . Cables sizes and cable glands required are as below:-
No. of cores
Approx. overall diameter
Double compression type



Weather proof
Flameproof Type

4C X1.5 mmsq
16.5
CBW01S
CBF01S

4 C X 2.5 mmsq
17.0
CBW01
CBF01

4 C X 4 mmsq
19.5
CBW02
CBF02

4 C X 6 mmsq
21.5
CBW02
CBF02

4 C X10 mmsq
21.5
CBW03
CBF03

3.5C X25/16 mmsq
26
CBW04
CBF04

3.5C X 35/16 mmsq
28.5
CBW05
CBF05

3.5C X 50/25 mmsq
32.0
CBW06
CBF06

3.5C X 70/35 mmsq
35.0
CBW07
CBF07

3.5C X 95/50 mmsq
40.0
CBW08
CBF08

3.5C X 120/70 mmsq
43.0
CBW09
CBF09

3.5C X 150/70 mmsq
46.0
CBW09
CBF09

3.5C X 185/95 mmsq
50.0
CBW010
CBF010

3.5C X 225/120 mmsq
58.0
CBW011
CBF011

3.5C X 240/120 mmsq
59.0
CBW011
CBF011

3.5C X 300/150  mmsq
64.0
CBW012
CBF012

3.5 C X400/185 mmsq
72.0
CBW013A
CBF013A







There are both single compression and double compression cable glands used in industries. Differences between single compression and double compression glands are as below:-
1.       Double compression glands provide additional support to armored cables entering and exiting the panels. On the other hand single compression glands are used for light armored cables.
2.       Single compression cable glands compression is effective only at one place i.e. at cable armor. But in double compression cable glands compression takes place at both cable armor and at inner sheath. Thus double compression cable glands avoid entry of vapor as it may be possible in single compression cable glands. These double compression glands are thus known as weather and flameproof glands
Constructional difference between Single and Double compression glands:-
There are following parts in Single compression glands:-
1.       Gland body
2.       Nut for gland body
3.       Rubber seal
4.       Rubber washer
5.       Check nut
6.       Washer
There are following parts in double compression glands:-
1.       Gland body
2.       Nut for gland body
3.       Cone
4.       Cone ring
5.       Rubber seal
6.       Rubber washer
7.       Check nut
8.       Washer
From above it is clear that there is no cone and cone ring in single compression glands.

Double compression glands depending upon area of classification are used. For Hazardous area such as in oil and gas area flameproof double compression glands are used.

Comments

Post a Comment

Popular posts from this blog

A2XWY; A2XFY Cables meaning; XLPE cables advantages over PVC cables

Technical Specification of Aluminum Cables in terms of codes So many times you have seen coding while specifying cables technical such as A2XWY now what does this means. Now there is nomenclature for the same which is used while describing the same. Where A -  Aluminium 2X- XLPE Insulation W – Steel round wire armour F- Steel Strip Armour WW- Double Steel round Armour FF- Double Steel Strip Armour Y- PVC outer Sheath Wa- Non Magnetic round wire Armour Fa- Non Magnetic Strip Armour AW- Aluminum Wire Armour Now As per A2XWY – This describes that it is Aluminum cable, XLPE insulated, With Steel round wire armour and having PVC outer Sheath. This coding is as per IS 7098(Part1):1988. You have also seen that there is coding for copper so there is no coding required in case of copper cables. XLPE cables advantages over PVC cables/ Thermoplastic cables:- 1.       XLPE cables have higher Power rating about 1.2 times PVC cables 2.       XLP...
Read more

Digital Multimeter working principle; DMM working

Image
Digital multimeters are most widely used in every industry as it used for measurement of Voltage, Current, Resistance, Capacitance and various other parameters. DMMs have been available for very several years. Yet it is still challenging to locate advice about how a digital multimeter works. The operation of a digital multimeter is comparatively uncomplicated, although there are obviously differences in how digital mulimeters work if they're from different makers.Despite this, there are several similarities and some general principles of how digital multimeters work. Fundamentals of how a DMM functions The key process occurring within a digital multimeter for any measurement is that of voltage measurement. All other measurements are derived from this basic measurement. So the best technique for understanding how a digital multimeter functions is in understanding this procedure. There are many kinds to digital converter, ADC. Nonetheless the one that is most widely used DMMs in di...
Read more

Wireless voltmeter using Arduino and RF 433MHz receiver and transmitter

Image
In this project i showed you how to make a wireless voltmeter using arduino and RF 433MHz receiver and transmitter. You can use this code and concept for many other projects, any project which used sensor with analog voltage output to sense temperature, gas leakage or light , etc. For example you can put a LM35 temperature sensor rather than potantiometer, you just have to putting its formula which convert LM35 output pin voltage to exact temperature. You also can make a wireless AC or DC power meter by doing some change in code and hardware (using hall effect current sensor and single phase voltage sensor). This type of RF module has distance range up to 200 meters according to datasheet but when i bought this RF module from Aliexpress its distance rang was very low, but i set its adjustable RF coil very carefully and i get very higher distance rang.(Don't play with RF coil if your module works good), You also have to use a 6 inch antenna to increase distance range to max as possi...
Read more