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► The Crimping of Cable Lugs and Butt Connectors
► Recommended Number of Crimps for Individual Cross Section
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IP standards were improved by CENELEC the Europan Comittee for Electro Technical Standardisation. These standards descibe the clasification of degrees of protection provided by housing for electrical equipment. Given numbers and codes introduce us protection class of product. Example IP 54; firs number "5" indicates protection against dut, the second figure "4" indicates protected against splash water. |
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First Numeral |
Brief Description |
Definition |
| 0 |
Non-Protected |
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| 1 |
Protected against solid foreign object 50 mm diameter and larger |
The object probe, sphere of 50 mm shall not fully penetrate |
| 2 |
Protected against solid foreign object 12.5 mm diameter and larger |
The object probe, sphere of 12.5 mm shall not fully penetrate |
| 3 |
Protected against solid foreign object 2.5 mm diameter and larger |
The object probe, sphere of 2.5 mm shall not fully penetrate |
| 4 |
Protected against solid foreign object 1.0 mm diameter and larger |
The object probe, sphere of 1.0 mm shall not fully penetrate |
| 5 |
Dust Protected |
Ingress of dust is not totally prevented, but dust shall not penetrate in a quantity to interfere with satisfactory operation of the apparatus or to impair safety |
| 6 |
Dust-tight |
No ingress of dust |
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Second Numeral |
Brief Description |
Definition |
| 0 |
Non- Protected |
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| 1 |
Protected against drips |
Vertically falling drops must not cause damage |
| 2 |
Protected against drips if the housing is bent at an angle of 15o |
Vertically falling drops must not cause damage if the housing is bent |
| 3 | Protected against spray-water |
Water that is sprayed at an angle of up to 600 either side of the vertical must not cause damage |
| 4 |
Protected against spray-water |
Water that is splashed against the housing from every direction must not cause damage |
| 5 |
Protected against jet-water |
Water that is sprayed against the housing as a jet from every direction must not cause damage |
| 6 |
Protected against strong jet-water |
Water that is sprayed against the housing as a strong jet from every direction must not cause damage |
| 7 |
Protected against the effect of temporary submersion in water |
Water must not penetrate in a quantity, which causes damage if the housing is temporarily submerged in water under standard pressure and time conditions |
| 8 |
Protected against the effect of permanent submersion in water |
Water must not penetrate in a quantity, which causes damage if the housing is submerged under water continuously under conditions to be agreed between the manufacturer and user. However, the conditions must be more stringent that those of characteristic numeral 7. |
All doors and panels were processed of cleaning the oil and covering with ferr-phosphate before painting and carried out powder coated over them.
Frame, mounting plate and bearers were manufactured by galvanized sheet. Besides, electrostatic powder coating has been applicated onto pre-galvanized sheet.
Supplied ground connection between galvanized frame and tackwelded bolt to all painted parts, because of being galvanized of carrige brackets, ground continuity is okey. .
1. Peel the tip of cable depends on cable lug's insertion depth (+ %10 tolerance because of uncrimped tip's length changings),
2. Clear the tips of conductors with a cloth or brush,
3. Insert the cable inside of cable lug or butt connector,
4. Crimp cable lugs or butt connectors while following the crimping direction by using suitable die.
The crimping directions for cable lugs and butt connectors are recommended as shown bellows;
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