Low-voltage distribution cabinet 6 major maintenance rules

Update date:2018-05-07 Source:MAXGE

Low-voltage distribution cabinet 6 major maintenance rules

I. Purpose To ensure the normal and safe operation of low-voltage power distribution cabinets and equipment control cabinets.

Second, the range is suitable for low-voltage distribution room power distribution cabinets, the control cabinet of each device, depending on the specific circumstances with reference to relevant provisions.

Third, the responsibility of the mechanical and electrical installation and maintenance engineering maintenance team to conduct a comprehensive inspection and maintenance every six months, and the shortest outage time to complete the maintenance work.

Distribution box

Fourth, content

1. Preparation:

A. Notify the resident of the power outage before and after the outage maintenance of the power distribution cabinet.

B. Make all preparations before the power outage, especially the preparation of tools should be complete; and complete the maintenance with the shortest power outage time.

2, maintenance procedures:

A. Implement sectional maintenance and first maintain the security load section.

B. Stop the security load and the remaining load will be supplied to the mains as usual. Disconnect the air switch for the public load of the security load, disconnect the generator air switch, place the generator selector switch in the stop position, open the positive and negative wires of the battery, and hang the nameplate to prevent the generator from sending power.

C. Check whether there is any deformation on the bus joints, whether there is any trace of discharge blackening, and tighten the connecting bolts. The bolts should be replaced if they are rusted to ensure that the joints are tightly connected. Check for loose and damaged insulation on the female.

Three metal boxes

D. Use the handle to shake the total air out of the power distribution cabinet and check whether the main contacts have traces of burnt. Check whether the arc extinguishing cover is burnt and damaged. Fasten the connection screws, clean the dust in the cabinet, and test the mechanical assembly. Gate and opening conditions

E. Take out the switch cabinets from the drawer cabinet and fasten the terminals. Check the installation and wiring of current transformers, ammeters, and watt-hour meters, check the flexible reliability of the handle operating mechanism, tighten the air switch inlet and outlet lines, and clean the dust in the switch cabinet and the lead-out line behind the power distribution cabinet.

F. When maintaining the capacitor cabinet, disconnect the capacitor's main switch first, and discharge the capacitors one by one to the ground with more than 10MM2 wires. Then check the contactor, capacitor wiring screws, grounding device is good, check whether the capacitor has bulging phenomenon, and use The vacuum cleaner cleans the cabinet dust.

G. After the maintenance of the security load section is completed, the generator can be started to supply power and the bus section can be stopped to maintain the bus section.

H. Disconnect the low-side air switch step by step, and then disconnect the high-voltage side vacuum circuit breaker for transformer power, close the grounding switch, and hang the “No-shut-up, work-in-progress” signboard.

I. After all the requirements of C, D, E, and F have been completed, dismantle the safety device, disconnect the high-voltage side grounding switch, close the vacuum circuit breaker, observe the correct operation of the transformer, and proceed to the low-voltage distribution cabinet. Stage power transmission, and the security load from the generator power supply to the city power supply.

 1006/5000 Dīyā pèi diàn guì yī, mùdì quèbǎo dīyā pèi diàn guì hé gè shèbèi kòngzhì guì de zhèngcháng ānquán yùnxíng. Èr, fànwéi shìhé dīyā pèi diàn shì pèi diàn guì, gè shèbèi de kòngzhì guì shì jùtǐ qíngkuàng cānzhào yǒuguān tiáokuǎn zhíxíng. Sān, zhízé yóu jīdiàn ānzhuāng wéixiū gōngchéng bù wéixiū zǔ měi bànnián duì qí jìnxíng yīcì quánmiàn jiǎnchá bǎoyǎng, bìng yǐ zuìduǎn de tíngdiàn shíjiān wánchéng bǎoyǎng gōngzuò. Sì, nèiróng 1, zhǔnbèi gōngzuò: A, zài pèi diàn guì tíngdiàn bǎoyǎng de qián yītiān tōngzhī zhùhù tíngdiàn qǐzhǐ shíjiān. B, tíngdiàn qián zuò hǎo yīqiè zhǔnbèi gōngzuò, tèbié shì gōngjù de zhǔnbèi yīng qíquán; bìng yǐ zuìduǎn de tíngdiàn shíjiān wánchéng bǎoyǎng gōngzuò. 2, Bǎoyǎng chéngxù: A, shí háng fēn duàn bǎoyǎng, xiān bǎoyǎng bǎo'ān fùhè duàn. B, tíng bǎo'ān fùhè diàn, qíyú fùhè zhàocháng gōng shì diàn. Duàn kāi gōng bǎo'ān fùhè shì diàn de kōngqì kāiguān, duàn kāifādiànjī kōngqì kāiguān, bǎ fādiàn jī xuǎnzé kāiguān zhì yú tíngzhǐ wèizhì, chāi kāi xùdiànchí zhèng, fùjí xiàn, guà biāoshì pái, yǐ fáng fādiàn jī fāsòng diàn. C, jiǎnchá mǔxiàn jiētóu chù yǒu wú biànxíng, yǒu wú fàngdiàn biàn hēi hénjī, jǐn gù liánjiē luóshuān, luóshuān ruò yǒu shēng xiù yīng yǔ gēnghuàn, quèbǎo jiētóu liánjiē jǐnmì. Jiǎnchá mǔshàng de juéyuán yǒu wú sōngdòng hé sǔnhuài. D, yòng shǒubǐng bǎ zǒng kōngqì cóng pèi diàn guì zhōng yáo chū, jiǎnchá zhǔ chù diǎn shìfǒu yǒu shāo róng hénjī, jiǎnchá miè hú zhào shìfǒu shāo hēi hé sǔnhuài, jǐn gù gè jiēxiàn luósī, qīngjié guì nèi huīchén, shìyàn jīxiè de hé zhá, fēn zhá qíngkuàng E, bǎ gè fēn kāiguān guì cóng chōutì guì zhōng qǔchū, jǐn gù gè jiēxiàn duānzǐ. Jiǎnchá diànliú hùgǎn qì, diànliúbiǎo, diàn dù biǎo de ānzhuāng hé jiēxiàn, jiǎnchá shǒubǐng cāozuò jīgòu de línghuó kěkào xìng, jǐn gù kōngqì kāiguān jìnchū xiàn, qīngjié kāiguān guì nèi hé pèi diàn guì hòumiàn yǐnchū xiàn chǔ de huīchén. F, bǎoyǎng diànróng guì shí, yīng xiān duàn kāi diànróngqì zǒng kāiguān, yòng 10MM2 yǐshàng de dǎoxiàn bǎ diànróngqì zhúgè duì dì fàngdiàn, ránhòu jiǎnchá jiēchù qì, diànróngqì jiēxiàn luósī, jiēdì zhuāngzhì shìfǒu liánghǎo, jiǎnchá diànróngqì yǒu wú zhàng dù xiànxiàng, bìngyòng xīchénqì qīngjié guì nèi huīchén. G, bǎo'ān fùhè duàn bǎoyǎng wánbì, kě qǐdòng fādiàn jī duì qí gōngdiàn, tíng shì diàn bǎoyǎng mǔxiàn duàn. H, zhú jí duàn kāi dīyā cè kōngqì kāiguān, ránhòu duàn kāi gōng biànyāqì diàn de gāoyā cè zhēnkōng duànlù qì, hé shàng jiēdì kāiguān, xuánguà “jìnzhǐ hé zhá, yǒurén gōngzuò” biāoshì pái. I, àn C,D,E,F xiàng suǒyǒu yāoqiú bǎoyǎng wánbì pèi diàn guì hòu, chāichú ānquán zhuāngzhì, duàn kāi gāoyā cè jiēdì kāiguān, hé shàng zhēnkōng duànlù qì, guānchá biànyāqì tóurù yùnxíng wúwù hòu, xiàng dīyā pèi diàn guì zhú jí sòng diàn, bìng bǎ bǎo'ān fùhè yóu fā diàn jī gōngdiàn zhuǎn wèi shì diàn gōngdiàn. Wǔ, ānquán zhùyì shìxiàng 1, tíngdiàn hòu yìngyàn diàn. 2, Zài fēn duàn bǎoyǎng pèi diàn guì shí, dàidiàn hé bù dàidiàn pèi diàn guì jiāojiè chù yīng zhuāng shè gélí zhuāngzhì. 3, Cāozuò gāoyā cè zhēnkōng duànlù qì shí, yīng chuān juéyuán xuē, dài juéyuán shǒutào, bìng yǒu zhuānrén jiānhù. 4, Bǎoyǎng diànróngqì guì shí, zài diànróngqì duì dì fàngdiàn zhīqián, yánjìn chùmō. 5, Bǎoyǎng wánbì sòng diàn qián, yīng xiān jiǎnchá yǒu wú gōngjù yíliú zài pèi diàn guì nèi. Liù, xiāngguān wénjiàn jí jìlù 1, jiǎnxiū gōngzuò piào; 2, pèi diàn guì, kòngzhì guì nián bǎoyǎng jìlù; 3, shèbèi wéixiū jìlù. Low voltage distribution cabinet

V. Safety precautions

1, after the power outage should be tested.

2. When maintaining the distribution cabinet in sections, isolation devices shall be installed at the junction of live and uncharged distribution cabinets.

3. When operating the high-voltage side vacuum circuit breaker, wear insulated boots, insulated gloves, and special personnel.

4. When the capacitor cabinet is maintained, it is forbidden to touch before the capacitor discharges to ground.

5. Before maintenance and power transmission, check whether tools are left in the power distribution cabinet.

Six, related documents and records

1, maintenance work ticket;

2. Annual maintenance records of power distribution cabinets and control cabinets;

3, equipment maintenance records.


Copyright© 2017 www.maxge.com All Rights Reserved.

Copyright© 2017
www.maxge.com All Rights Reserved.

悬浮

CONTACT US

NAME

Email

Phone

MESSAGE

We won't share your info with third parties.