Frequently Asked Questions

What does "explosion proof" really mean?

Flameproof protection, or "explosion proof" as it's known in North America, is traditionally the most widely used method of protection for electrical devices in hazardous areas. The requirement is that the device's enclosure must be of significant strength and integrity to withstand an internal explosion of the harzard for which it is designed; without the explosion setting fire to the surrounding atmosphere.

What is "purged protection"?

Purging is a technique of applying a protective gas (possibly air) into an enclosure to prevent the formation of an explosive atmosphere inside the enclosure. This is accomplished by maintaining an overpressure against the surrounding atmosphere. Though this is a good method, typically used for control panels, it is limited in the sense that if there were a disaster or the pressurization system failed, the power from this device must be instantly removed rendering the device inoperative.

What are "IP ratings - Ingress Protection"?

There are two systems in common use for defining the amount of protection an enclosure affords against the intrusion or ingress of dust and liquids. The most widely used system is the IP code. This is defined fully in IEC 529. The NEMA Code system is often used in North America as an alternative to the IP code. Here is a reference sheet that gives NEMA codes and relates them to IP codes.

The IP code uses two digits to specify environmental protection. The first digit signifies the protection against solid matter (dust etc.) and the second digit specifies the protection against liquid (water). For your reference, here is a reference sheet that explains ratings in more detail.

How can I integrate SIDUS products into my system?

SIDUS offers a vast array of remote control options for our equipment. Standard configurations include analog voltages, RS-232, RS-422 or RS-485 via an easy to use Sidus protocol. Custom analog configurations and other common serial protocols such as Pelco-D are available upon request. Additionally, SIDUS also offers custom equipment controllers and graphical user interface software.

What is galvanic corrosion?

Galvanic corrosion is an electrochemical process where one metal corrodes when in electrical contact with a different type of metal. This type of corrosion commonly occurs when the metals are immersed in an electrolyte such as sea water. To prevent galvanic corrosion a non electrically conductive material is placed between the two dissimilar metals such as plastic or anodized film.

What are the various video formats?

Selecting the right video format for your application is key to a successful design. Questions such as; “Will I have a sharp, pixelated or small image? How much hard drive space will it take or bandwidth will it take to send it?” can only be answered after you have selected the image sizing required for your project. Attached is a link to help with your selection. Be aware some of these are very costly and are better for broadcast media or film makers. Video Formats

What are Incoterms?

Incoterms are an international standard of determining transportation obligations, cost and risks. It defines the “how” and “when” the transfer of ownership between a seller and a buyer occurs and who is responsible for the cost. For your reference, here is a quick reference sheet offered by the International Chamber of Commerce.

Depth Ratings 

BAR
PSI
Kpa
ATM
Depth
(Feet)
Depth
(Meters)
Depth
(Fathoms)

1

15

100

1

33

10

6

2

29

200

2

67

20

11

3

44

300

3

100

31

17

4

58

400

4

134

41

22

5

73

500

5

167

51

28

6

87

600

6

201

61

33

7

102

700

7

234

71

39

8

116

800

8

268

82

45

9

131

900

9

301

92

50

10

145

1000

10

335

102

56

15

218

1500

15

502

153

84

20

290

2000

20

670

204

112

25

363

2500

25

837

255

140

30

435

3000

30

1004

306

167

35

508

3500

35

1172

357

195

40

580

4000

39

1339

408

223

45

653

4500

44

1507

459

251

50

725

5000

49

1674

510

279

100

1450

10000

99

3348

1021

558

150

2175

15000

148

5022

1531

837

200

2901

19999

197

6697

2041

1116

250

3626

24999

247

8371

2551

1395

300

4351

29999

296

10045

3062

1674

350

5076

34999

345

11719

3572

1953

400

5801

39999

395

13393

4082

2232

450

6526

44999

444

15067

4593

2511

500

7252

49999

493

16742

5103

2790

550

7977

54998

543

18416

5613

3069

600

8702

59998

592

20090

6123

3348

650

9427

64998

642

21764

6634

3627

700

10152

69998

691

23438

7144

3906

750

10877

74998

740

25112

7654

4185

800

11603

79998

790

26787

8165

4464

850

12328

84998

839

28461

8675

4743

900

13053

89997

888

30135

9185

5022

950

13778

94997

938

31809

9695

5302

1000

14503

99997

987

33483

10206

5581


CONVERSION FACTORS

1 psi = 0.06895 bar
1 bar = 14.50326 psi
1 psi = 6.8948 KPa
1 psi = 2.306723 ft H2O
1 BAR = 33.4833 ft H2O

 

AWG References

AWG is an abbreviation for "American Wire Gauge" and is the U.S. standard for wire conductor sizes. AWG is also sometimes referred to as Brown and Sharpe or B & S Wire Gauge. The "gauge" means the diameter

AWG
Stranding
Outside Diameter (mm)
Circular Area
mm2
WEIGHT
Kg per KM
DC Resistance
Ohms/Km

36

Solid

0.127

25.0

0.013

0.113

1460.0

7/44

0.152

28.0

0.014

0.126

1271.0

34

Solid

0.160

39.7

0.020

0.179

918.0

7/42

0.192

43.8

0.022

0.196

777.0

32

Solid

0.203

67.3

0.032

0.289

571.0

7/40

0.203

67.3

0.034

0.302

538.0

19/44

0.229

76.0

0.039

0.342

448.0

30

Solid

0.254

100.0

0.051

0.450

365.0

7/38

0.305

112.0

0.057

0.504

339.0

19/42

0.305

118.8

0.061

0.534

286.7

28

Solid

0.330

159.0

0.080

0.720

232.0

7/36

0.381

175.0

0.072

0.787

213.0

19/40

0.406

182.6

0.093

0.823

186.0

27

7/35

0.457

219.5

0.112

0.988

179.0

26

Solid

0.409

256.0

0.128

1.140

143.0

10/36

0.533

250.0

0.128

1.130

137.0

19/38

0.508

304.0

0.155

1.370

113.0

7/34

0.483

277.8

0.142

1.250

122.0

24

Solid

0.511

404.0

0.205

1.820

89.4

7/32

0.610

448.0

0.229

2.020

76.4

10/34

0.582

396.9

0.202

1.790

85.6

19/36

0.610

475.0

0.242

2.130

69.2

41/40

0.582

384.4

0.193

1.730

84.0

22

Solid

0.643

640.0

0.325

2.910

55.3

7/30

0.762

700.0

0.357

3.160

48.4

19/34

0.787

754.1

0.385

3.390

45.1

20

Solid

0.813

1020.0

0.519

4.610

34.6

7/28

0.965

1111.0

0.562

5.190

33.8

10/30

0.889

1000.0

0.510

4.050

33.9

19/32

0.940

1216.0

0.620

5.480

28.3

26/34

0.914

1031.9

0.526

4.640

33.0

41/36

0.914

1025.0

0.523

4.610

32.9

18

Solid

1.020

1620.0

0.823

7.320

21.8

7/26

1.219

1769.6

0.902

7.980

19.2

16/30

1.194

1600.0

0.816

7.200

21.3

19/30

1.245

1900.0

0.969

8.560

17.9

41/34

1.194

1627.3

0.830

7.320

20.9

65/36

1.194

1625.0

0.829

7.310

21.0

16

Solid

1.290

2580.0

1.310

11.600

13.7

7/24

1.524

2828.0

1.442

12.740

12.0

65/34

1.499

2579.9

1.316

11.620

13.2

26/30

1.499

2600.0

1.326

11.710

13.1

19/29

1.473

2426.3

1.327

10.940

14.0

105/36

1.499

2625.0

1.339

11.83

13.1

14

Solid

1.630

4110.0

2.080

18.500

8.6

7/22

1.854

4480.0

2.285

20.180

7.6

19/27

1.854

3830.4

1.954

17.250

8.9

41/30

1.854

4100.0

2.091

18.450

8.3

105/34

1.854

4167.5

2.125

18.770

8.2

 
Electrical Contact Sizes
Contact AWG
Diameter (inches)
Ampacity (Amps)

28

0.015"

0.5

22

0.031"

2.5

20

0.040"

4.0

16

0.062"

13.0

14

0.093"

16.0

10

0.125"

23.0

8

0.156"

50.0

6

0.218"

65.0

4

0.255"

90.0

1/0.5

0.355"

200.0

 

Notes:

  • Ampacity is calculated at a temperature range of 30º F to 68º F

  • Above 70º F, ampacity will drop




Do have any questions that we haven't answered? Please contact us by email at info@sidus-solutions.com or phone at (619) 275-5533
surveillance cameras

CONTACT US

  • San Diego Headquarters (619) 275-5533
  • Houston Sales Office (281) 596-7568
  • Louisiana Sales Office (504) 617-7077

info@sidus-solutions.com