tailieunhanh - GUIDELINES FOR HANDLING WATER-DAMAGED ELECTRICAL EQUIPMENT

Moisture deficiencies occurring early in the crop cycle may delay the maturity season and reduce yields. Shortages later in the season often lower quality, as well as yields. However, irrigation surplus, especially late in the season, can reduce both the quality and the post-harvest life of the crop. Uneven or surplus irrigation, above the amount required to replace evapotranspiration, causes nitrate leaching below the root system and the ability of the crop to recover from the nitrogen deficiency decreases. Efficient water use, namely irrigation scheduling, high uniformity of water distribution and light precipitation rate, will help prevent stress conditions | Guidelines for handling Water-damaged Electrical equipment Setting Standards for Excellence National Electrical manufacturers association 1300 North 17th Street Suite 1752 Rosslyn Virginia 22209 703 841-3200 703 841-5900 FAX Guidelines for Handling Water-damaged Electrical Equipment NOTICE AND DISCLAIMER - Please see the last page of this document. Use of this Publication This publication provides guidelines on how to handle electrical equipment that has been exposed to water through flooding fire fighting activities hurricanes etc. It is designed for use by suppliers installers inspectors and users of electrical products. Electrical equipment exposed to water can be extremely dangerous if reenergized without proper reconditioning or replacement. Reductions in integrity of electrical insulation due to moisture debris lodged in the equipment components and other factors can damage electrical equipment by affecting the ability of the equipment to perform its intended function. Damage to electrical equipment can also result from flood waters contaminated with chemicals sewage oil and other debris that will affect the integrity and performance of the equipment. Ocean water and salt spray can be particularly damaging due to the corrosive and conductive nature of the salt water residue. Distributors of electrical equipment should not use any inventory that has been subjected to water damage. Damaged inventory should not be sold to resellers that will place the equipment back into the market. This can lead to damaged equipment still being used and creating a hazard to individuals or property. To Contact the Manufacturer Working knowledge of electrical systems and of the equipment in question is required to evaluate damage due to contact with water. The original manufacturer of the equipment should be contacted if any questions arise or specific recommendations are needed. In many cases replacement will be necessary. After consultation with the manufacturer .