تعريف نسبة العزل فى الأجهزة ولوحات التوزيع

 

 

تعريف نسبة العزل فى الأجهزة ولوحات التوزيع
تعريف نسبة العزل فى الأجهزة ولوحات التوزيع

Using Ingress Protection (IP) Ratings to help select proper equipment for your application.

For load cell sealing techniques, Rice Lake Weighing Systems uses the Ingress Protection (IP) rating system. We find the IP numbers and their definitions are suitable for the classification of load cells and only apply IP numbers to such cell The lP numbers on a load cells .further specify the treatment a specific cell can endure in environments more severe than simple wash down.

Example: Protection level offered

by an IP67 rated product

[IP 67]

Protection against solid objects

First number (in this case 6)

0 No protection

1 Protected from solid objects up to 50mm (e.g., accidental touch by hands)

2 Protected from solid objects up to 12 mm (e.g., fingers)

3 Protected from solid objects more than 25 mm (e.g., tools and small wires)

4 Protected from solid objects more than 1 mm (e.g., small wires)

5 Protected from dust; limited entrance (no harmful deposit)

6 totally protected from dust

Protection against liquids

Second number (in this case 7)

0 No protection

1 Protected from vertically-falling drops of water (e.g., condensation)

2 Protected from direct sprays of water up to 15° from vertical

3 Protected from direct sprays of water up to 60° from vertical

4 Protected from water sprayed from all directions; limited entrance allowed

5 Protected from low pressure jets of water from all directions; limited entrance allowed

6 Protected from strong jets of water (e.g., for use on ship decks); limited entrance allowed

7 Protected from the effects of immersion between 15 cm and 1 m for 30 minutes

8 Protected from extended periods of immersion under pressure

 

IP Numbers with Hermetically Sealed (HS) or Environmentally Protected(EP) Ratings

Rating Protection

EP àDust proof ,  not protected from moisture or water

IP65à Dust proof, protected from splashes and low-pressure jets

1P66 àDust proof, protected from strong water jets

1P67 àDust proof, protected from temporary immersion in water 1 meterdeep for 30 minutesv

1P68àDust proof, protected from continuous immersion in water under more severe conditions than IP67

IP66/68 àDust proof protected from strong water jets and/or constant immersion