Grounding of equipment for food production should be as reliable as possible. The stability of the production line, and ultimately - the quality of products depends on it a lot. One of our customers considered this, when he addressed to the ZANDZ Technical Center with a request to calculate the equipment grounding at the Nestle production. Considering the features of the object, the customer indicated a special requirement - to make a grounding device with the resistance of less than 4 Ohms using an electrolytic grounding electrode. Our technical experts offered a solution, which we are sharing with you.
An example of calculation of grounding for food production
Object: Production line of the Nestle factory.
Figure 1- Object sizes.
Carry out a grounding device with the resistance not exceeding 4 ohms.
A set of measures to ensure the necessary requirements to the equipment grounding system at the production of food products:
Grounding is made in accordance with the EIC 7th ed.
2. Installation of the 1st electrolytic grounding set ZZ-100-102-6MG-GN219. The kit is connected to the ground loop consisting of a steel copper-bonded tape with the cross-section of 30x4 mm. The distance from the electrode to the communication lines and foundations must be at least 3 m. The depth is 0.6 m.
Grounding device calculation resistance:
The design resistance of the grounding device is 3.98 ohms.
Figure 2 shows the arrangement of equipment.
Table 1 lists the necessary equipment and materials for grounding at the production of Nestle products.
Комплект электролитического заземления – electrolytic grounding kit
Полоса омедненная стальная сечение 30 на 4 – copper bonded tape with the cross section of 30 to 4 mm
|№||Fig.||Product item||Name||Quantity, pcs|
|1.||ZZ-100-102-6MG-GN219||ZANDZ Electrolytic grounding kit (L-shaped; 6 meters; 219 mm; 12 * 30 kg of graphitic aggregate)||1|
|2.||ZZ-005-064||ZANDZ Clamp for connecting conductors (up to 40 mm)||5|
|3.||GL-11075-50||GALMAR Copper-bonded tape (30 * 4 mm / S 120 mm²; coil of 50 meters)||1|
|4.||ZZ-007-030||ZANDZ Waterproof tape||2|
Any questions about grounding at the production of food products? Please contact our ZANDZ Technical center!